/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 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 20:01:07,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 20:01:07,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 20:01:07,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 20:01:07,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 20:01:07,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 20:01:07,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 20:01:07,600 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 [2021-06-05 20:01:07,662 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 20:01:07,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 20:01:07,662 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 20:01:07,663 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 20:01:07,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 20:01:07,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 20:01:07,665 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 20:01:07,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 20:01:07,665 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 20:01:07,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 20:01:07,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 20:01:07,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 20:01:07,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 20:01:07,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 20:01:07,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 20:01:07,667 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 20:01:07,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 20:01:07,667 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 20:01:07,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 20:01:07,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 20:01:07,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 20:01:07,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 20:01:07,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 20:01:07,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 20:01:07,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 20:01:07,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 20:01:07,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 20:01:07,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 20:01:07,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 20:01:07,668 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 20:01:07,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 20:01:07,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 20:01:08,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 20:01:08,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 20:01:08,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 20:01:08,172 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 20:01:08,179 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 20:01:08,180 INFO L432 ainManager$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 [2021-06-05 20:01:08,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1189448c2/9d3f188efb5d485f8144ab0f5845e9f6/FLAGd7a964342 [2021-06-05 20:01:08,961 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 20:01:08,962 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-06-05 20:01:08,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1189448c2/9d3f188efb5d485f8144ab0f5845e9f6/FLAGd7a964342 [2021-06-05 20:01:09,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1189448c2/9d3f188efb5d485f8144ab0f5845e9f6 [2021-06-05 20:01:09,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 20:01:09,040 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 20:01:09,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 20:01:09,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 20:01:09,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 20:01:09,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:01:09" (1/1) ... [2021-06-05 20:01:09,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4688940c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:09, skipping insertion in model container [2021-06-05 20:01:09,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:01:09" (1/1) ... [2021-06-05 20:01:09,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 20:01:09,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 20:01:10,000 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-06-05 20:01:10,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:01:10,041 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 20:01:10,079 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-06-05 20:01:10,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:01:10,423 INFO L208 MainTranslator]: Completed translation [2021-06-05 20:01:10,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:10 WrapperNode [2021-06-05 20:01:10,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 20:01:10,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 20:01:10,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 20:01:10,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 20:01:10,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:10" (1/1) ... [2021-06-05 20:01:10,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:10" (1/1) ... [2021-06-05 20:01:10,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 20:01:10,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 20:01:10,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 20:01:10,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 20:01:10,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:10" (1/1) ... [2021-06-05 20:01:10,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:10" (1/1) ... [2021-06-05 20:01:10,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:10" (1/1) ... [2021-06-05 20:01:10,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:10" (1/1) ... [2021-06-05 20:01:10,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:10" (1/1) ... [2021-06-05 20:01:10,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:10" (1/1) ... [2021-06-05 20:01:10,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:10" (1/1) ... [2021-06-05 20:01:10,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 20:01:10,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 20:01:10,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 20:01:10,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 20:01:10,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:10" (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 [2021-06-05 20:01:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 20:01:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 20:01:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-05 20:01:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-05 20:01:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 20:01:10,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 20:01:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-06-05 20:01:10,664 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-06-05 20:01:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 20:01:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 20:01:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 20:01:10,666 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 20:01:11,442 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 20:01:11,443 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-06-05 20:01:11,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:01:11 BoogieIcfgContainer [2021-06-05 20:01:11,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 20:01:11,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 20:01:11,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 20:01:11,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 20:01:11,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 08:01:09" (1/3) ... [2021-06-05 20:01:11,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36481f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:01:11, skipping insertion in model container [2021-06-05 20:01:11,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:10" (2/3) ... [2021-06-05 20:01:11,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36481f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:01:11, skipping insertion in model container [2021-06-05 20:01:11,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:01:11" (3/3) ... [2021-06-05 20:01:11,452 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2021-06-05 20:01:11,460 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 20:01:11,460 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 20:01:11,460 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-06-05 20:01:11,461 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 20:01:11,523 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,524 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,524 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,524 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,525 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,526 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,527 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,527 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,528 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,528 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,528 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,528 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,528 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,528 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,528 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,529 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,529 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,530 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,530 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,530 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,530 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,531 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,531 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,531 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,531 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,531 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,531 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,532 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,532 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,532 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,532 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,532 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,533 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,533 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,533 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,533 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,533 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,533 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,533 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,534 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,534 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,534 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,534 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,534 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,534 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,534 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,534 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,535 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,535 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,535 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,535 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,535 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,535 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,535 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,536 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,536 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,536 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,536 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,538 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,538 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,538 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,539 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,539 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,539 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,539 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,539 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,539 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,540 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,540 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,540 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,541 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,541 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,542 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,542 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,544 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,545 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,545 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,546 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,550 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,551 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,552 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,552 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,552 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,552 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,553 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,553 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,555 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,555 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,555 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,555 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,555 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,555 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,556 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,556 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,556 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,556 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,561 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,561 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,561 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,561 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,561 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,561 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,562 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,562 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,562 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,562 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:11,575 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 20:01:11,593 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-06-05 20:01:11,616 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:01:11,616 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:01:11,616 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:01:11,616 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:01:11,617 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:01:11,617 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:01:11,617 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:01:11,617 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 20:01:11,633 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 166 places, 170 transitions, 362 flow [2021-06-05 20:01:12,016 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8182 states, 8171 states have (on average 2.8338024721576307) internal successors, (23155), 8181 states have internal predecessors, (23155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:12,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 8182 states, 8171 states have (on average 2.8338024721576307) internal successors, (23155), 8181 states have internal predecessors, (23155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:12,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 20:01:12,083 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:12,083 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:12,084 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:12,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:12,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1624038893, now seen corresponding path program 1 times [2021-06-05 20:01:12,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:12,103 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477904853] [2021-06-05 20:01:12,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:12,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:12,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:12,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477904853] [2021-06-05 20:01:12,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477904853] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:12,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:12,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 20:01:12,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323657087] [2021-06-05 20:01:12,554 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 20:01:12,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:12,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 20:01:12,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 20:01:12,583 INFO L87 Difference]: Start difference. First operand has 8182 states, 8171 states have (on average 2.8338024721576307) internal successors, (23155), 8181 states have internal predecessors, (23155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:12,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:12,889 INFO L93 Difference]: Finished difference Result 7787 states and 21633 transitions. [2021-06-05 20:01:12,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 20:01:12,891 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 [2021-06-05 20:01:12,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:12,943 INFO L225 Difference]: With dead ends: 7787 [2021-06-05 20:01:12,943 INFO L226 Difference]: Without dead ends: 6398 [2021-06-05 20:01:12,944 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 85.6ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 20:01:13,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6398 states. [2021-06-05 20:01:13,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6398 to 6397. [2021-06-05 20:01:13,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6397 states, 6390 states have (on average 2.769170579029734) internal successors, (17695), 6396 states have internal predecessors, (17695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:13,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6397 states to 6397 states and 17695 transitions. [2021-06-05 20:01:13,268 INFO L78 Accepts]: Start accepts. Automaton has 6397 states and 17695 transitions. Word has length 36 [2021-06-05 20:01:13,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:13,269 INFO L482 AbstractCegarLoop]: Abstraction has 6397 states and 17695 transitions. [2021-06-05 20:01:13,269 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:13,269 INFO L276 IsEmpty]: Start isEmpty. Operand 6397 states and 17695 transitions. [2021-06-05 20:01:13,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-06-05 20:01:13,270 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:13,271 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:13,271 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 20:01:13,271 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:13,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:13,272 INFO L82 PathProgramCache]: Analyzing trace with hash -652027726, now seen corresponding path program 1 times [2021-06-05 20:01:13,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:13,272 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375583455] [2021-06-05 20:01:13,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:13,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:13,377 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:13,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375583455] [2021-06-05 20:01:13,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375583455] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:13,378 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:13,378 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 20:01:13,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91418043] [2021-06-05 20:01:13,379 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 20:01:13,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:13,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 20:01:13,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 20:01:13,380 INFO L87 Difference]: Start difference. First operand 6397 states and 17695 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:13,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:13,664 INFO L93 Difference]: Finished difference Result 6399 states and 17697 transitions. [2021-06-05 20:01:13,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 20:01:13,665 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 [2021-06-05 20:01:13,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:13,698 INFO L225 Difference]: With dead ends: 6399 [2021-06-05 20:01:13,699 INFO L226 Difference]: Without dead ends: 6399 [2021-06-05 20:01:13,699 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 78.1ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 20:01:13,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6399 states. [2021-06-05 20:01:14,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6399 to 6395. [2021-06-05 20:01:14,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6395 states, 6389 states have (on average 2.7692909688527156) internal successors, (17693), 6394 states have internal predecessors, (17693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:14,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6395 states to 6395 states and 17693 transitions. [2021-06-05 20:01:14,048 INFO L78 Accepts]: Start accepts. Automaton has 6395 states and 17693 transitions. Word has length 42 [2021-06-05 20:01:14,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:14,048 INFO L482 AbstractCegarLoop]: Abstraction has 6395 states and 17693 transitions. [2021-06-05 20:01:14,048 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:14,048 INFO L276 IsEmpty]: Start isEmpty. Operand 6395 states and 17693 transitions. [2021-06-05 20:01:14,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 20:01:14,050 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:14,050 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:14,050 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 20:01:14,050 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:14,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:14,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1629089851, now seen corresponding path program 1 times [2021-06-05 20:01:14,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:14,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612915540] [2021-06-05 20:01:14,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:14,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:14,225 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:14,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612915540] [2021-06-05 20:01:14,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612915540] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:14,226 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:14,226 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 20:01:14,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830938780] [2021-06-05 20:01:14,227 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 20:01:14,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:14,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 20:01:14,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 20:01:14,228 INFO L87 Difference]: Start difference. First operand 6395 states and 17693 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:14,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:14,650 INFO L93 Difference]: Finished difference Result 9382 states and 25923 transitions. [2021-06-05 20:01:14,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 20:01:14,650 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 [2021-06-05 20:01:14,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:14,704 INFO L225 Difference]: With dead ends: 9382 [2021-06-05 20:01:14,704 INFO L226 Difference]: Without dead ends: 9382 [2021-06-05 20:01:14,705 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 113.3ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:01:14,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9382 states. [2021-06-05 20:01:14,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9382 to 7177. [2021-06-05 20:01:14,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7177 states, 7172 states have (on average 2.7711935303959843) internal successors, (19875), 7176 states have internal predecessors, (19875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:14,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7177 states to 7177 states and 19875 transitions. [2021-06-05 20:01:14,984 INFO L78 Accepts]: Start accepts. Automaton has 7177 states and 19875 transitions. Word has length 60 [2021-06-05 20:01:14,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:14,986 INFO L482 AbstractCegarLoop]: Abstraction has 7177 states and 19875 transitions. [2021-06-05 20:01:14,986 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:14,986 INFO L276 IsEmpty]: Start isEmpty. Operand 7177 states and 19875 transitions. [2021-06-05 20:01:14,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 20:01:14,994 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:14,994 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:14,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 20:01:14,995 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:14,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:14,995 INFO L82 PathProgramCache]: Analyzing trace with hash 157318948, now seen corresponding path program 1 times [2021-06-05 20:01:14,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:14,996 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750467607] [2021-06-05 20:01:14,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:15,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:15,131 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:15,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750467607] [2021-06-05 20:01:15,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750467607] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:15,131 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:15,131 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 20:01:15,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452660021] [2021-06-05 20:01:15,132 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 20:01:15,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:15,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 20:01:15,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 20:01:15,181 INFO L87 Difference]: Start difference. First operand 7177 states and 19875 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:15,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:15,517 INFO L93 Difference]: Finished difference Result 10164 states and 27958 transitions. [2021-06-05 20:01:15,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 20:01:15,518 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 [2021-06-05 20:01:15,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:15,540 INFO L225 Difference]: With dead ends: 10164 [2021-06-05 20:01:15,540 INFO L226 Difference]: Without dead ends: 8547 [2021-06-05 20:01:15,541 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 91.1ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-05 20:01:15,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8547 states. [2021-06-05 20:01:15,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8547 to 8253. [2021-06-05 20:01:15,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8253 states, 8249 states have (on average 2.7752454843011276) internal successors, (22893), 8252 states have internal predecessors, (22893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:15,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8253 states to 8253 states and 22893 transitions. [2021-06-05 20:01:15,813 INFO L78 Accepts]: Start accepts. Automaton has 8253 states and 22893 transitions. Word has length 66 [2021-06-05 20:01:15,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:15,815 INFO L482 AbstractCegarLoop]: Abstraction has 8253 states and 22893 transitions. [2021-06-05 20:01:15,815 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:15,815 INFO L276 IsEmpty]: Start isEmpty. Operand 8253 states and 22893 transitions. [2021-06-05 20:01:15,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-05 20:01:15,824 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:15,824 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:15,824 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 20:01:15,824 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:15,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:15,825 INFO L82 PathProgramCache]: Analyzing trace with hash 545870789, now seen corresponding path program 1 times [2021-06-05 20:01:15,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:15,825 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100027232] [2021-06-05 20:01:15,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:15,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:15,985 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:15,985 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100027232] [2021-06-05 20:01:15,985 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100027232] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:15,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:15,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 20:01:15,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213421402] [2021-06-05 20:01:15,986 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 20:01:15,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:15,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 20:01:15,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 20:01:15,987 INFO L87 Difference]: Start difference. First operand 8253 states and 22893 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:16,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:16,031 INFO L93 Difference]: Finished difference Result 3039 states and 8148 transitions. [2021-06-05 20:01:16,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 20:01:16,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-05 20:01:16,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:16,038 INFO L225 Difference]: With dead ends: 3039 [2021-06-05 20:01:16,039 INFO L226 Difference]: Without dead ends: 3039 [2021-06-05 20:01:16,039 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 31.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 20:01:16,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3039 states. [2021-06-05 20:01:16,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3039 to 3039. [2021-06-05 20:01:16,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3039 states, 3037 states have (on average 2.6829107672044783) internal successors, (8148), 3038 states have internal predecessors, (8148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:16,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3039 states to 3039 states and 8148 transitions. [2021-06-05 20:01:16,105 INFO L78 Accepts]: Start accepts. Automaton has 3039 states and 8148 transitions. Word has length 80 [2021-06-05 20:01:16,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:16,106 INFO L482 AbstractCegarLoop]: Abstraction has 3039 states and 8148 transitions. [2021-06-05 20:01:16,106 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:16,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3039 states and 8148 transitions. [2021-06-05 20:01:16,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:16,113 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:16,113 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:16,113 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 20:01:16,113 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:16,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:16,114 INFO L82 PathProgramCache]: Analyzing trace with hash 206638629, now seen corresponding path program 1 times [2021-06-05 20:01:16,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:16,114 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177266388] [2021-06-05 20:01:16,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:16,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:16,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:16,648 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177266388] [2021-06-05 20:01:16,648 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177266388] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:16,648 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:16,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 20:01:16,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704925056] [2021-06-05 20:01:16,649 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 20:01:16,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:16,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 20:01:16,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:01:16,650 INFO L87 Difference]: Start difference. First operand 3039 states and 8148 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:17,901 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-06-05 20:01:18,106 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-06-05 20:01:18,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:18,251 INFO L93 Difference]: Finished difference Result 4138 states and 10679 transitions. [2021-06-05 20:01:18,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 20:01:18,251 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 [2021-06-05 20:01:18,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:18,261 INFO L225 Difference]: With dead ends: 4138 [2021-06-05 20:01:18,261 INFO L226 Difference]: Without dead ends: 4138 [2021-06-05 20:01:18,261 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1063.3ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:01:18,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4138 states. [2021-06-05 20:01:18,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4138 to 3698. [2021-06-05 20:01:18,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3698 states, 3696 states have (on average 2.643668831168831) internal successors, (9771), 3697 states have internal predecessors, (9771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:18,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 9771 transitions. [2021-06-05 20:01:18,354 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 9771 transitions. Word has length 113 [2021-06-05 20:01:18,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:18,354 INFO L482 AbstractCegarLoop]: Abstraction has 3698 states and 9771 transitions. [2021-06-05 20:01:18,354 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:18,354 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 9771 transitions. [2021-06-05 20:01:18,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:18,363 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:18,363 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:18,363 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 20:01:18,363 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:18,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:18,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1135674037, now seen corresponding path program 2 times [2021-06-05 20:01:18,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:18,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907961882] [2021-06-05 20:01:18,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:19,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:19,757 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:19,757 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907961882] [2021-06-05 20:01:19,757 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907961882] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:19,757 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:19,757 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:19,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26376698] [2021-06-05 20:01:19,758 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:19,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:19,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:19,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:19,759 INFO L87 Difference]: Start difference. First operand 3698 states and 9771 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:20,448 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-06-05 20:01:21,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:21,767 INFO L93 Difference]: Finished difference Result 6254 states and 16298 transitions. [2021-06-05 20:01:21,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:01:21,778 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:01:21,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:21,794 INFO L225 Difference]: With dead ends: 6254 [2021-06-05 20:01:21,794 INFO L226 Difference]: Without dead ends: 6254 [2021-06-05 20:01:21,795 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 2184.4ms TimeCoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 20:01:21,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6254 states. [2021-06-05 20:01:21,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6254 to 4483. [2021-06-05 20:01:21,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4483 states, 4481 states have (on average 2.673733541620174) internal successors, (11981), 4482 states have internal predecessors, (11981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:21,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4483 states to 4483 states and 11981 transitions. [2021-06-05 20:01:21,908 INFO L78 Accepts]: Start accepts. Automaton has 4483 states and 11981 transitions. Word has length 113 [2021-06-05 20:01:21,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:21,909 INFO L482 AbstractCegarLoop]: Abstraction has 4483 states and 11981 transitions. [2021-06-05 20:01:21,909 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:21,909 INFO L276 IsEmpty]: Start isEmpty. Operand 4483 states and 11981 transitions. [2021-06-05 20:01:21,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:21,918 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:21,918 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:21,919 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 20:01:21,919 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:21,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:21,920 INFO L82 PathProgramCache]: Analyzing trace with hash -62312397, now seen corresponding path program 3 times [2021-06-05 20:01:21,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:21,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627660501] [2021-06-05 20:01:21,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:22,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:22,323 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:22,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627660501] [2021-06-05 20:01:22,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627660501] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:22,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:22,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 20:01:22,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144631147] [2021-06-05 20:01:22,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 20:01:22,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:22,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 20:01:22,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:01:22,326 INFO L87 Difference]: Start difference. First operand 4483 states and 11981 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:22,762 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-06-05 20:01:23,458 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-06-05 20:01:23,769 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-06-05 20:01:24,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:24,226 INFO L93 Difference]: Finished difference Result 5390 states and 13897 transitions. [2021-06-05 20:01:24,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 20:01:24,227 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 [2021-06-05 20:01:24,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:24,250 INFO L225 Difference]: With dead ends: 5390 [2021-06-05 20:01:24,250 INFO L226 Difference]: Without dead ends: 5390 [2021-06-05 20:01:24,250 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1199.0ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:01:24,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5390 states. [2021-06-05 20:01:24,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5390 to 4516. [2021-06-05 20:01:24,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 4514 states have (on average 2.671466548515729) internal successors, (12059), 4515 states have internal predecessors, (12059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:24,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 12059 transitions. [2021-06-05 20:01:24,406 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 12059 transitions. Word has length 113 [2021-06-05 20:01:24,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:24,406 INFO L482 AbstractCegarLoop]: Abstraction has 4516 states and 12059 transitions. [2021-06-05 20:01:24,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:24,406 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 12059 transitions. [2021-06-05 20:01:24,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:24,418 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:24,418 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:24,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 20:01:24,418 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:24,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:24,419 INFO L82 PathProgramCache]: Analyzing trace with hash -660140631, now seen corresponding path program 4 times [2021-06-05 20:01:24,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:24,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449669436] [2021-06-05 20:01:24,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:25,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:25,116 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:25,117 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449669436] [2021-06-05 20:01:25,117 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449669436] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:25,117 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:25,117 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:25,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981234510] [2021-06-05 20:01:25,117 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:25,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:25,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:25,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:25,119 INFO L87 Difference]: Start difference. First operand 4516 states and 12059 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:26,530 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2021-06-05 20:01:26,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:26,882 INFO L93 Difference]: Finished difference Result 6181 states and 15940 transitions. [2021-06-05 20:01:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:01:26,882 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:01:26,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:26,918 INFO L225 Difference]: With dead ends: 6181 [2021-06-05 20:01:26,918 INFO L226 Difference]: Without dead ends: 6181 [2021-06-05 20:01:26,919 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1518.8ms TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:01:26,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6181 states. [2021-06-05 20:01:27,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6181 to 4526. [2021-06-05 20:01:27,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4526 states, 4524 states have (on average 2.6710875331564985) internal successors, (12084), 4525 states have internal predecessors, (12084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:27,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4526 states to 4526 states and 12084 transitions. [2021-06-05 20:01:27,114 INFO L78 Accepts]: Start accepts. Automaton has 4526 states and 12084 transitions. Word has length 113 [2021-06-05 20:01:27,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:27,114 INFO L482 AbstractCegarLoop]: Abstraction has 4526 states and 12084 transitions. [2021-06-05 20:01:27,114 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:27,114 INFO L276 IsEmpty]: Start isEmpty. Operand 4526 states and 12084 transitions. [2021-06-05 20:01:27,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:27,123 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:27,123 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:27,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 20:01:27,124 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:27,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:27,124 INFO L82 PathProgramCache]: Analyzing trace with hash 228734501, now seen corresponding path program 5 times [2021-06-05 20:01:27,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:27,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233130373] [2021-06-05 20:01:27,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:27,571 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:27,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233130373] [2021-06-05 20:01:27,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233130373] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:27,571 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:27,571 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 20:01:27,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117153985] [2021-06-05 20:01:27,572 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 20:01:27,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:27,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 20:01:27,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:01:27,573 INFO L87 Difference]: Start difference. First operand 4526 states and 12084 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:28,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:28,766 INFO L93 Difference]: Finished difference Result 4980 states and 13019 transitions. [2021-06-05 20:01:28,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 20:01:28,766 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 [2021-06-05 20:01:28,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:28,772 INFO L225 Difference]: With dead ends: 4980 [2021-06-05 20:01:28,772 INFO L226 Difference]: Without dead ends: 4980 [2021-06-05 20:01:28,773 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 715.8ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:01:28,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4980 states. [2021-06-05 20:01:28,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4980 to 4394. [2021-06-05 20:01:28,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4394 states, 4392 states have (on average 2.680327868852459) internal successors, (11772), 4393 states have internal predecessors, (11772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:28,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4394 states to 4394 states and 11772 transitions. [2021-06-05 20:01:28,900 INFO L78 Accepts]: Start accepts. Automaton has 4394 states and 11772 transitions. Word has length 113 [2021-06-05 20:01:28,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:28,900 INFO L482 AbstractCegarLoop]: Abstraction has 4394 states and 11772 transitions. [2021-06-05 20:01:28,900 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:28,901 INFO L276 IsEmpty]: Start isEmpty. Operand 4394 states and 11772 transitions. [2021-06-05 20:01:28,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:28,909 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:28,909 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:28,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 20:01:28,909 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:28,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:28,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1687601291, now seen corresponding path program 6 times [2021-06-05 20:01:28,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:28,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108324105] [2021-06-05 20:01:28,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:29,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:29,446 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:29,446 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108324105] [2021-06-05 20:01:29,446 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108324105] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:29,446 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:29,446 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:29,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552388152] [2021-06-05 20:01:29,447 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:29,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:29,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:29,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:29,448 INFO L87 Difference]: Start difference. First operand 4394 states and 11772 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:30,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:30,701 INFO L93 Difference]: Finished difference Result 5437 states and 13948 transitions. [2021-06-05 20:01:30,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:01:30,701 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:01:30,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:30,706 INFO L225 Difference]: With dead ends: 5437 [2021-06-05 20:01:30,706 INFO L226 Difference]: Without dead ends: 5437 [2021-06-05 20:01:30,706 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1030.9ms TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:01:30,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2021-06-05 20:01:30,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 4424. [2021-06-05 20:01:30,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4422 states have (on average 2.6791044776119404) internal successors, (11847), 4423 states have internal predecessors, (11847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:30,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 11847 transitions. [2021-06-05 20:01:30,816 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 11847 transitions. Word has length 113 [2021-06-05 20:01:30,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:30,817 INFO L482 AbstractCegarLoop]: Abstraction has 4424 states and 11847 transitions. [2021-06-05 20:01:30,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:30,817 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 11847 transitions. [2021-06-05 20:01:30,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:30,831 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:30,831 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:30,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 20:01:30,832 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:30,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:30,832 INFO L82 PathProgramCache]: Analyzing trace with hash -665903213, now seen corresponding path program 7 times [2021-06-05 20:01:30,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:30,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417396365] [2021-06-05 20:01:30,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:31,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:31,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:31,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417396365] [2021-06-05 20:01:31,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417396365] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:31,366 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:31,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:31,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540521989] [2021-06-05 20:01:31,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:31,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:31,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:31,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:31,368 INFO L87 Difference]: Start difference. First operand 4424 states and 11847 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:32,688 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-06-05 20:01:32,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:32,928 INFO L93 Difference]: Finished difference Result 10454 states and 27256 transitions. [2021-06-05 20:01:32,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:01:32,928 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:01:32,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:32,940 INFO L225 Difference]: With dead ends: 10454 [2021-06-05 20:01:32,940 INFO L226 Difference]: Without dead ends: 10454 [2021-06-05 20:01:32,956 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1332.3ms TimeCoverageRelationStatistics Valid=287, Invalid=769, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 20:01:32,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2021-06-05 20:01:33,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 4496. [2021-06-05 20:01:33,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4496 states, 4494 states have (on average 2.684245660881175) internal successors, (12063), 4495 states have internal predecessors, (12063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:33,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4496 states to 4496 states and 12063 transitions. [2021-06-05 20:01:33,203 INFO L78 Accepts]: Start accepts. Automaton has 4496 states and 12063 transitions. Word has length 113 [2021-06-05 20:01:33,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:33,203 INFO L482 AbstractCegarLoop]: Abstraction has 4496 states and 12063 transitions. [2021-06-05 20:01:33,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:33,203 INFO L276 IsEmpty]: Start isEmpty. Operand 4496 states and 12063 transitions. [2021-06-05 20:01:33,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:33,219 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:33,219 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:33,219 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 20:01:33,219 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:33,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:33,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1833249415, now seen corresponding path program 8 times [2021-06-05 20:01:33,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:33,220 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615316126] [2021-06-05 20:01:33,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:33,797 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:33,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615316126] [2021-06-05 20:01:33,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615316126] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:33,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:33,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:33,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580996513] [2021-06-05 20:01:33,798 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:33,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:33,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:33,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:33,800 INFO L87 Difference]: Start difference. First operand 4496 states and 12063 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:35,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:35,196 INFO L93 Difference]: Finished difference Result 9577 states and 24842 transitions. [2021-06-05 20:01:35,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:01:35,197 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:01:35,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:35,208 INFO L225 Difference]: With dead ends: 9577 [2021-06-05 20:01:35,208 INFO L226 Difference]: Without dead ends: 9577 [2021-06-05 20:01:35,208 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1143.1ms TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:01:35,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9577 states. [2021-06-05 20:01:35,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9577 to 4436. [2021-06-05 20:01:35,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4436 states, 4434 states have (on average 2.6799729364005414) internal successors, (11883), 4435 states have internal predecessors, (11883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:35,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 11883 transitions. [2021-06-05 20:01:35,315 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 11883 transitions. Word has length 113 [2021-06-05 20:01:35,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:35,316 INFO L482 AbstractCegarLoop]: Abstraction has 4436 states and 11883 transitions. [2021-06-05 20:01:35,316 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:35,316 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 11883 transitions. [2021-06-05 20:01:35,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:35,324 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:35,324 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:35,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 20:01:35,324 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:35,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:35,325 INFO L82 PathProgramCache]: Analyzing trace with hash 530718679, now seen corresponding path program 9 times [2021-06-05 20:01:35,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:35,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986036483] [2021-06-05 20:01:35,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:35,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:35,806 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:35,806 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986036483] [2021-06-05 20:01:35,807 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986036483] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:35,807 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:35,807 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:35,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286638570] [2021-06-05 20:01:35,807 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:35,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:35,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:35,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:35,808 INFO L87 Difference]: Start difference. First operand 4436 states and 11883 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:38,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:38,066 INFO L93 Difference]: Finished difference Result 9044 states and 23337 transitions. [2021-06-05 20:01:38,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 20:01:38,066 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:01:38,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:38,071 INFO L225 Difference]: With dead ends: 9044 [2021-06-05 20:01:38,072 INFO L226 Difference]: Without dead ends: 9044 [2021-06-05 20:01:38,072 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1837.7ms TimeCoverageRelationStatistics Valid=435, Invalid=1125, Unknown=0, NotChecked=0, Total=1560 [2021-06-05 20:01:38,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9044 states. [2021-06-05 20:01:38,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9044 to 4575. [2021-06-05 20:01:38,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4575 states, 4573 states have (on average 2.684014869888476) internal successors, (12274), 4574 states have internal predecessors, (12274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:38,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 12274 transitions. [2021-06-05 20:01:38,161 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 12274 transitions. Word has length 113 [2021-06-05 20:01:38,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:38,161 INFO L482 AbstractCegarLoop]: Abstraction has 4575 states and 12274 transitions. [2021-06-05 20:01:38,161 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:38,161 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 12274 transitions. [2021-06-05 20:01:38,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:38,169 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:38,169 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:38,169 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 20:01:38,169 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:38,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:38,170 INFO L82 PathProgramCache]: Analyzing trace with hash -955480473, now seen corresponding path program 10 times [2021-06-05 20:01:38,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:38,170 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657973926] [2021-06-05 20:01:38,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:38,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:38,599 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:38,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657973926] [2021-06-05 20:01:38,599 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657973926] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:38,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:38,600 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:38,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498208932] [2021-06-05 20:01:38,600 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:38,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:38,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:38,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:38,601 INFO L87 Difference]: Start difference. First operand 4575 states and 12274 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:40,028 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-06-05 20:01:40,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:40,234 INFO L93 Difference]: Finished difference Result 7287 states and 18606 transitions. [2021-06-05 20:01:40,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:01:40,235 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:01:40,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:40,244 INFO L225 Difference]: With dead ends: 7287 [2021-06-05 20:01:40,245 INFO L226 Difference]: Without dead ends: 7287 [2021-06-05 20:01:40,247 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1317.1ms TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:01:40,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7287 states. [2021-06-05 20:01:40,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7287 to 4581. [2021-06-05 20:01:40,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4581 states, 4579 states have (on average 2.6837737497270147) internal successors, (12289), 4580 states have internal predecessors, (12289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:40,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4581 states to 4581 states and 12289 transitions. [2021-06-05 20:01:40,396 INFO L78 Accepts]: Start accepts. Automaton has 4581 states and 12289 transitions. Word has length 113 [2021-06-05 20:01:40,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:40,396 INFO L482 AbstractCegarLoop]: Abstraction has 4581 states and 12289 transitions. [2021-06-05 20:01:40,397 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:40,397 INFO L276 IsEmpty]: Start isEmpty. Operand 4581 states and 12289 transitions. [2021-06-05 20:01:40,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:40,418 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:40,418 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:40,419 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 20:01:40,419 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:40,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:40,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1764361193, now seen corresponding path program 11 times [2021-06-05 20:01:40,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:40,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221325492] [2021-06-05 20:01:40,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:40,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:40,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:40,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221325492] [2021-06-05 20:01:40,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221325492] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:40,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:40,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:40,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582280735] [2021-06-05 20:01:40,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:40,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:40,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:40,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:40,901 INFO L87 Difference]: Start difference. First operand 4581 states and 12289 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:42,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:42,268 INFO L93 Difference]: Finished difference Result 7156 states and 18133 transitions. [2021-06-05 20:01:42,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:01:42,268 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:01:42,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:42,275 INFO L225 Difference]: With dead ends: 7156 [2021-06-05 20:01:42,275 INFO L226 Difference]: Without dead ends: 7156 [2021-06-05 20:01:42,275 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1126.5ms TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:01:42,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7156 states. [2021-06-05 20:01:42,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7156 to 4583. [2021-06-05 20:01:42,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 4581 states have (on average 2.6836935166994107) internal successors, (12294), 4582 states have internal predecessors, (12294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:42,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 12294 transitions. [2021-06-05 20:01:42,348 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 12294 transitions. Word has length 113 [2021-06-05 20:01:42,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:42,349 INFO L482 AbstractCegarLoop]: Abstraction has 4583 states and 12294 transitions. [2021-06-05 20:01:42,349 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:42,349 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 12294 transitions. [2021-06-05 20:01:42,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:42,356 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:42,356 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:42,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 20:01:42,356 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:42,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:42,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1998553517, now seen corresponding path program 12 times [2021-06-05 20:01:42,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:42,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329529682] [2021-06-05 20:01:42,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:42,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:42,810 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:42,810 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329529682] [2021-06-05 20:01:42,810 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329529682] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:42,810 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:42,810 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:42,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656847419] [2021-06-05 20:01:42,811 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:42,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:42,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:42,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:42,812 INFO L87 Difference]: Start difference. First operand 4583 states and 12294 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:44,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:44,314 INFO L93 Difference]: Finished difference Result 6999 states and 17778 transitions. [2021-06-05 20:01:44,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:01:44,315 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:01:44,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:44,322 INFO L225 Difference]: With dead ends: 6999 [2021-06-05 20:01:44,323 INFO L226 Difference]: Without dead ends: 6999 [2021-06-05 20:01:44,324 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1251.8ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:01:44,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6999 states. [2021-06-05 20:01:44,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6999 to 4583. [2021-06-05 20:01:44,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 4581 states have (on average 2.6836935166994107) internal successors, (12294), 4582 states have internal predecessors, (12294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:44,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 12294 transitions. [2021-06-05 20:01:44,434 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 12294 transitions. Word has length 113 [2021-06-05 20:01:44,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:44,478 INFO L482 AbstractCegarLoop]: Abstraction has 4583 states and 12294 transitions. [2021-06-05 20:01:44,479 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:44,479 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 12294 transitions. [2021-06-05 20:01:44,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:44,484 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:44,484 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:44,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 20:01:44,484 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:44,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:44,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1541337051, now seen corresponding path program 13 times [2021-06-05 20:01:44,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:44,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283597384] [2021-06-05 20:01:44,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:44,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:44,998 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:44,998 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283597384] [2021-06-05 20:01:44,998 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283597384] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:44,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:44,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:44,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050893743] [2021-06-05 20:01:45,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:45,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:45,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:45,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:45,002 INFO L87 Difference]: Start difference. First operand 4583 states and 12294 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:46,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:46,153 INFO L93 Difference]: Finished difference Result 6304 states and 15945 transitions. [2021-06-05 20:01:46,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:01:46,154 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:01:46,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:46,159 INFO L225 Difference]: With dead ends: 6304 [2021-06-05 20:01:46,160 INFO L226 Difference]: Without dead ends: 6304 [2021-06-05 20:01:46,160 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 899.8ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:01:46,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6304 states. [2021-06-05 20:01:46,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6304 to 4589. [2021-06-05 20:01:46,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4587 states have (on average 2.683453237410072) internal successors, (12309), 4588 states have internal predecessors, (12309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:46,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 12309 transitions. [2021-06-05 20:01:46,224 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 12309 transitions. Word has length 113 [2021-06-05 20:01:46,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:46,224 INFO L482 AbstractCegarLoop]: Abstraction has 4589 states and 12309 transitions. [2021-06-05 20:01:46,224 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:46,224 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 12309 transitions. [2021-06-05 20:01:46,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:46,230 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:46,230 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:46,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 20:01:46,230 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:46,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:46,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1963761767, now seen corresponding path program 14 times [2021-06-05 20:01:46,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:46,230 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402845135] [2021-06-05 20:01:46,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:46,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:46,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:46,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402845135] [2021-06-05 20:01:46,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402845135] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:46,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:46,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:46,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265871487] [2021-06-05 20:01:46,681 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:46,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:46,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:46,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:46,682 INFO L87 Difference]: Start difference. First operand 4589 states and 12309 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:47,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:47,879 INFO L93 Difference]: Finished difference Result 6426 states and 16176 transitions. [2021-06-05 20:01:47,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:01:47,881 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:01:47,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:47,886 INFO L225 Difference]: With dead ends: 6426 [2021-06-05 20:01:47,886 INFO L226 Difference]: Without dead ends: 6426 [2021-06-05 20:01:47,886 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 959.2ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:01:47,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6426 states. [2021-06-05 20:01:47,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6426 to 4591. [2021-06-05 20:01:47,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4591 states, 4589 states have (on average 2.683373283939856) internal successors, (12314), 4590 states have internal predecessors, (12314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:47,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 12314 transitions. [2021-06-05 20:01:47,948 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 12314 transitions. Word has length 113 [2021-06-05 20:01:47,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:47,948 INFO L482 AbstractCegarLoop]: Abstraction has 4591 states and 12314 transitions. [2021-06-05 20:01:47,948 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 12314 transitions. [2021-06-05 20:01:47,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:47,953 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:47,953 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:47,953 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 20:01:47,953 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:47,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:47,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1729569443, now seen corresponding path program 15 times [2021-06-05 20:01:47,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:47,954 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402808332] [2021-06-05 20:01:47,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:48,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:48,439 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:48,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402808332] [2021-06-05 20:01:48,439 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402808332] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:48,439 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:48,439 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:48,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908140401] [2021-06-05 20:01:48,440 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:48,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:48,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:48,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:48,441 INFO L87 Difference]: Start difference. First operand 4591 states and 12314 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:49,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:49,675 INFO L93 Difference]: Finished difference Result 6096 states and 15461 transitions. [2021-06-05 20:01:49,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:01:49,675 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:01:49,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:49,682 INFO L225 Difference]: With dead ends: 6096 [2021-06-05 20:01:49,682 INFO L226 Difference]: Without dead ends: 6096 [2021-06-05 20:01:49,684 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 986.0ms TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:01:49,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6096 states. [2021-06-05 20:01:49,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6096 to 4589. [2021-06-05 20:01:49,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4587 states have (on average 2.683453237410072) internal successors, (12309), 4588 states have internal predecessors, (12309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:49,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 12309 transitions. [2021-06-05 20:01:49,792 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 12309 transitions. Word has length 113 [2021-06-05 20:01:49,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:49,792 INFO L482 AbstractCegarLoop]: Abstraction has 4589 states and 12309 transitions. [2021-06-05 20:01:49,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:49,793 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 12309 transitions. [2021-06-05 20:01:49,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:49,798 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:49,799 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:49,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 20:01:49,799 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:49,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:49,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1126339983, now seen corresponding path program 16 times [2021-06-05 20:01:49,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:49,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962415033] [2021-06-05 20:01:49,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:50,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:50,377 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:50,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962415033] [2021-06-05 20:01:50,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962415033] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:50,377 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:50,377 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:50,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760385380] [2021-06-05 20:01:50,378 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:50,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:50,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:50,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:50,380 INFO L87 Difference]: Start difference. First operand 4589 states and 12309 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:51,814 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-06-05 20:01:52,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:52,144 INFO L93 Difference]: Finished difference Result 8284 states and 21529 transitions. [2021-06-05 20:01:52,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:01:52,145 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:01:52,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:52,156 INFO L225 Difference]: With dead ends: 8284 [2021-06-05 20:01:52,156 INFO L226 Difference]: Without dead ends: 8284 [2021-06-05 20:01:52,156 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1416.8ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 20:01:52,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8284 states. [2021-06-05 20:01:52,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8284 to 4589. [2021-06-05 20:01:52,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4587 states have (on average 2.683453237410072) internal successors, (12309), 4588 states have internal predecessors, (12309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:52,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 12309 transitions. [2021-06-05 20:01:52,288 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 12309 transitions. Word has length 113 [2021-06-05 20:01:52,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:52,290 INFO L482 AbstractCegarLoop]: Abstraction has 4589 states and 12309 transitions. [2021-06-05 20:01:52,290 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:52,290 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 12309 transitions. [2021-06-05 20:01:52,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:52,297 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:52,297 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:52,297 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 20:01:52,297 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:52,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:52,297 INFO L82 PathProgramCache]: Analyzing trace with hash -669474685, now seen corresponding path program 17 times [2021-06-05 20:01:52,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:52,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16263207] [2021-06-05 20:01:52,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:52,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:52,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:52,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16263207] [2021-06-05 20:01:52,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16263207] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:52,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:52,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:52,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442944132] [2021-06-05 20:01:52,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:52,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:52,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:52,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:52,876 INFO L87 Difference]: Start difference. First operand 4589 states and 12309 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:54,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:54,500 INFO L93 Difference]: Finished difference Result 7407 states and 19115 transitions. [2021-06-05 20:01:54,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:01:54,500 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:01:54,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:54,508 INFO L225 Difference]: With dead ends: 7407 [2021-06-05 20:01:54,509 INFO L226 Difference]: Without dead ends: 7407 [2021-06-05 20:01:54,510 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1393.0ms TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:01:54,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7407 states. [2021-06-05 20:01:54,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7407 to 4529. [2021-06-05 20:01:54,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4529 states, 4527 states have (on average 2.6792577866136513) internal successors, (12129), 4528 states have internal predecessors, (12129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:54,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 12129 transitions. [2021-06-05 20:01:54,604 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 12129 transitions. Word has length 113 [2021-06-05 20:01:54,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:54,605 INFO L482 AbstractCegarLoop]: Abstraction has 4529 states and 12129 transitions. [2021-06-05 20:01:54,606 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:54,606 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 12129 transitions. [2021-06-05 20:01:54,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:54,611 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:54,611 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:54,611 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 20:01:54,611 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:54,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:54,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1972005421, now seen corresponding path program 18 times [2021-06-05 20:01:54,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:54,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161804339] [2021-06-05 20:01:54,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:55,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:55,173 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:55,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161804339] [2021-06-05 20:01:55,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161804339] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:55,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:55,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:55,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179764972] [2021-06-05 20:01:55,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:55,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:55,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:55,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:55,174 INFO L87 Difference]: Start difference. First operand 4529 states and 12129 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:57,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:57,704 INFO L93 Difference]: Finished difference Result 10995 states and 28419 transitions. [2021-06-05 20:01:57,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 20:01:57,705 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:01:57,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:57,717 INFO L225 Difference]: With dead ends: 10995 [2021-06-05 20:01:57,717 INFO L226 Difference]: Without dead ends: 10995 [2021-06-05 20:01:57,718 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 2049.3ms TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2021-06-05 20:01:57,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10995 states. [2021-06-05 20:01:57,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10995 to 4565. [2021-06-05 20:01:57,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4565 states, 4563 states have (on average 2.6817882971729126) internal successors, (12237), 4564 states have internal predecessors, (12237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:57,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4565 states to 4565 states and 12237 transitions. [2021-06-05 20:01:57,832 INFO L78 Accepts]: Start accepts. Automaton has 4565 states and 12237 transitions. Word has length 113 [2021-06-05 20:01:57,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:57,832 INFO L482 AbstractCegarLoop]: Abstraction has 4565 states and 12237 transitions. [2021-06-05 20:01:57,832 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:57,833 INFO L276 IsEmpty]: Start isEmpty. Operand 4565 states and 12237 transitions. [2021-06-05 20:01:57,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:01:57,838 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:57,838 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:01:57,838 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 20:01:57,838 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:57,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:57,838 INFO L82 PathProgramCache]: Analyzing trace with hash 836762723, now seen corresponding path program 19 times [2021-06-05 20:01:57,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:57,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849259891] [2021-06-05 20:01:57,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:58,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:58,288 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:58,288 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849259891] [2021-06-05 20:01:58,288 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849259891] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:58,288 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:58,288 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:58,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897099859] [2021-06-05 20:01:58,288 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:58,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:58,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:58,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:58,289 INFO L87 Difference]: Start difference. First operand 4565 states and 12237 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:00,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:00,099 INFO L93 Difference]: Finished difference Result 9238 states and 23688 transitions. [2021-06-05 20:02:00,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:02:00,099 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:02:00,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:00,109 INFO L225 Difference]: With dead ends: 9238 [2021-06-05 20:02:00,110 INFO L226 Difference]: Without dead ends: 9238 [2021-06-05 20:02:00,110 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1485.9ms TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:02:00,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9238 states. [2021-06-05 20:02:00,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9238 to 4529. [2021-06-05 20:02:00,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4529 states, 4527 states have (on average 2.6792577866136513) internal successors, (12129), 4528 states have internal predecessors, (12129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:00,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 12129 transitions. [2021-06-05 20:02:00,211 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 12129 transitions. Word has length 113 [2021-06-05 20:02:00,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:00,211 INFO L482 AbstractCegarLoop]: Abstraction has 4529 states and 12129 transitions. [2021-06-05 20:02:00,211 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:00,211 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 12129 transitions. [2021-06-05 20:02:00,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:02:00,216 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:00,216 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:00,217 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 20:02:00,217 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:00,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:00,217 INFO L82 PathProgramCache]: Analyzing trace with hash 27882003, now seen corresponding path program 20 times [2021-06-05 20:02:00,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:00,217 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756982754] [2021-06-05 20:02:00,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:00,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:00,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:00,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756982754] [2021-06-05 20:02:00,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756982754] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:00,658 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:00,658 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:00,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231036855] [2021-06-05 20:02:00,658 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:00,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:00,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:00,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:00,659 INFO L87 Difference]: Start difference. First operand 4529 states and 12129 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:02,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:02,684 INFO L93 Difference]: Finished difference Result 8169 states and 20857 transitions. [2021-06-05 20:02:02,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:02:02,684 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:02:02,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:02,693 INFO L225 Difference]: With dead ends: 8169 [2021-06-05 20:02:02,694 INFO L226 Difference]: Without dead ends: 8169 [2021-06-05 20:02:02,694 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1259.1ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:02:02,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8169 states. [2021-06-05 20:02:02,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8169 to 4531. [2021-06-05 20:02:02,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4531 states, 4529 states have (on average 2.679178626628395) internal successors, (12134), 4530 states have internal predecessors, (12134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:02,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4531 states to 4531 states and 12134 transitions. [2021-06-05 20:02:02,794 INFO L78 Accepts]: Start accepts. Automaton has 4531 states and 12134 transitions. Word has length 113 [2021-06-05 20:02:02,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:02,795 INFO L482 AbstractCegarLoop]: Abstraction has 4531 states and 12134 transitions. [2021-06-05 20:02:02,795 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:02,795 INFO L276 IsEmpty]: Start isEmpty. Operand 4531 states and 12134 transitions. [2021-06-05 20:02:02,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:02:02,800 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:02,801 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:02,801 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 20:02:02,801 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:02,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:02,801 INFO L82 PathProgramCache]: Analyzing trace with hash -206310321, now seen corresponding path program 21 times [2021-06-05 20:02:02,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:02,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165745501] [2021-06-05 20:02:02,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:03,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:03,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:03,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165745501] [2021-06-05 20:02:03,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165745501] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:03,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:03,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:03,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185474433] [2021-06-05 20:02:03,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:03,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:03,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:03,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:03,254 INFO L87 Difference]: Start difference. First operand 4531 states and 12134 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:05,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:05,084 INFO L93 Difference]: Finished difference Result 8044 states and 20567 transitions. [2021-06-05 20:02:05,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:02:05,084 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:02:05,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:05,093 INFO L225 Difference]: With dead ends: 8044 [2021-06-05 20:02:05,094 INFO L226 Difference]: Without dead ends: 8044 [2021-06-05 20:02:05,094 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1375.4ms TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:02:05,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8044 states. [2021-06-05 20:02:05,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8044 to 4517. [2021-06-05 20:02:05,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4517 states, 4515 states have (on average 2.678405315614618) internal successors, (12093), 4516 states have internal predecessors, (12093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:05,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 12093 transitions. [2021-06-05 20:02:05,190 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 12093 transitions. Word has length 113 [2021-06-05 20:02:05,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:05,190 INFO L482 AbstractCegarLoop]: Abstraction has 4517 states and 12093 transitions. [2021-06-05 20:02:05,191 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:05,191 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 12093 transitions. [2021-06-05 20:02:05,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:02:05,196 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:05,196 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:05,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 20:02:05,196 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:05,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:05,196 INFO L82 PathProgramCache]: Analyzing trace with hash 821363819, now seen corresponding path program 22 times [2021-06-05 20:02:05,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:05,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778080641] [2021-06-05 20:02:05,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:05,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:05,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:05,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778080641] [2021-06-05 20:02:05,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778080641] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:05,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:05,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:05,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128029138] [2021-06-05 20:02:05,675 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:05,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:05,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:05,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:05,676 INFO L87 Difference]: Start difference. First operand 4517 states and 12093 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:08,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:08,431 INFO L93 Difference]: Finished difference Result 6936 states and 17741 transitions. [2021-06-05 20:02:08,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:02:08,432 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:02:08,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:08,439 INFO L225 Difference]: With dead ends: 6936 [2021-06-05 20:02:08,439 INFO L226 Difference]: Without dead ends: 6936 [2021-06-05 20:02:08,440 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 2139.0ms TimeCoverageRelationStatistics Valid=470, Invalid=1252, Unknown=0, NotChecked=0, Total=1722 [2021-06-05 20:02:08,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6936 states. [2021-06-05 20:02:08,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6936 to 3470. [2021-06-05 20:02:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3470 states, 3468 states have (on average 2.631487889273356) internal successors, (9126), 3469 states have internal predecessors, (9126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:08,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3470 states to 3470 states and 9126 transitions. [2021-06-05 20:02:08,512 INFO L78 Accepts]: Start accepts. Automaton has 3470 states and 9126 transitions. Word has length 113 [2021-06-05 20:02:08,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:08,512 INFO L482 AbstractCegarLoop]: Abstraction has 3470 states and 9126 transitions. [2021-06-05 20:02:08,512 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:08,512 INFO L276 IsEmpty]: Start isEmpty. Operand 3470 states and 9126 transitions. [2021-06-05 20:02:08,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:02:08,517 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:08,517 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:08,517 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 20:02:08,517 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:08,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:08,519 INFO L82 PathProgramCache]: Analyzing trace with hash -664835333, now seen corresponding path program 23 times [2021-06-05 20:02:08,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:08,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738461029] [2021-06-05 20:02:08,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:08,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:08,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:08,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738461029] [2021-06-05 20:02:08,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738461029] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:08,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:08,956 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:08,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166410954] [2021-06-05 20:02:08,956 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:08,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:08,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:08,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:08,957 INFO L87 Difference]: Start difference. First operand 3470 states and 9126 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:10,827 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-06-05 20:02:11,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:11,540 INFO L93 Difference]: Finished difference Result 7509 states and 18951 transitions. [2021-06-05 20:02:11,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:02:11,541 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:02:11,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:11,547 INFO L225 Difference]: With dead ends: 7509 [2021-06-05 20:02:11,547 INFO L226 Difference]: Without dead ends: 7509 [2021-06-05 20:02:11,548 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 2089.5ms TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722 [2021-06-05 20:02:11,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7509 states. [2021-06-05 20:02:11,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7509 to 3434. [2021-06-05 20:02:11,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3432 states have (on average 2.6276223776223775) internal successors, (9018), 3433 states have internal predecessors, (9018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:11,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 9018 transitions. [2021-06-05 20:02:11,614 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 9018 transitions. Word has length 113 [2021-06-05 20:02:11,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:11,615 INFO L482 AbstractCegarLoop]: Abstraction has 3434 states and 9018 transitions. [2021-06-05 20:02:11,615 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:11,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 9018 transitions. [2021-06-05 20:02:11,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:02:11,619 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:11,619 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:11,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 20:02:11,619 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:11,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:11,620 INFO L82 PathProgramCache]: Analyzing trace with hash -346286449, now seen corresponding path program 24 times [2021-06-05 20:02:11,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:11,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552371479] [2021-06-05 20:02:11,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:12,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:12,024 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:12,024 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552371479] [2021-06-05 20:02:12,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552371479] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:12,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:12,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:12,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81421991] [2021-06-05 20:02:12,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:12,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:12,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:12,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:12,025 INFO L87 Difference]: Start difference. First operand 3434 states and 9018 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:13,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:13,855 INFO L93 Difference]: Finished difference Result 5115 states and 12793 transitions. [2021-06-05 20:02:13,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-05 20:02:13,855 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:02:13,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:13,862 INFO L225 Difference]: With dead ends: 5115 [2021-06-05 20:02:13,862 INFO L226 Difference]: Without dead ends: 5115 [2021-06-05 20:02:13,863 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1458.8ms TimeCoverageRelationStatistics Valid=333, Invalid=927, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 20:02:13,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5115 states. [2021-06-05 20:02:13,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5115 to 3452. [2021-06-05 20:02:13,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3450 states have (on average 2.6269565217391304) internal successors, (9063), 3451 states have internal predecessors, (9063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:13,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 9063 transitions. [2021-06-05 20:02:13,929 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 9063 transitions. Word has length 113 [2021-06-05 20:02:13,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:13,929 INFO L482 AbstractCegarLoop]: Abstraction has 3452 states and 9063 transitions. [2021-06-05 20:02:13,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:13,929 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 9063 transitions. [2021-06-05 20:02:13,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:02:13,934 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:13,935 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:13,935 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 20:02:13,935 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:13,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:13,935 INFO L82 PathProgramCache]: Analyzing trace with hash -816892643, now seen corresponding path program 25 times [2021-06-05 20:02:13,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:13,935 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706898528] [2021-06-05 20:02:13,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:14,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:14,526 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:14,526 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706898528] [2021-06-05 20:02:14,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706898528] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:14,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:14,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:14,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860001331] [2021-06-05 20:02:14,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:14,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:14,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:14,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:14,527 INFO L87 Difference]: Start difference. First operand 3452 states and 9063 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:15,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:15,884 INFO L93 Difference]: Finished difference Result 5010 states and 12385 transitions. [2021-06-05 20:02:15,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:02:15,885 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:02:15,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:15,890 INFO L225 Difference]: With dead ends: 5010 [2021-06-05 20:02:15,890 INFO L226 Difference]: Without dead ends: 5010 [2021-06-05 20:02:15,890 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1202.0ms TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:02:15,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5010 states. [2021-06-05 20:02:15,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5010 to 3460. [2021-06-05 20:02:15,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3460 states, 3458 states have (on average 2.626662810873337) internal successors, (9083), 3459 states have internal predecessors, (9083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:15,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 9083 transitions. [2021-06-05 20:02:15,952 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 9083 transitions. Word has length 113 [2021-06-05 20:02:15,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:15,952 INFO L482 AbstractCegarLoop]: Abstraction has 3460 states and 9083 transitions. [2021-06-05 20:02:15,952 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:15,952 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 9083 transitions. [2021-06-05 20:02:15,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:02:15,955 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:15,955 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:15,956 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 20:02:15,956 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:15,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:15,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1051084967, now seen corresponding path program 26 times [2021-06-05 20:02:15,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:15,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531909299] [2021-06-05 20:02:15,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:16,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:16,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:16,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531909299] [2021-06-05 20:02:16,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531909299] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:16,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:16,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:16,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871997053] [2021-06-05 20:02:16,387 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:16,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:16,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:16,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:16,387 INFO L87 Difference]: Start difference. First operand 3460 states and 9083 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:17,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:17,964 INFO L93 Difference]: Finished difference Result 5475 states and 13368 transitions. [2021-06-05 20:02:17,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:02:17,972 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:02:17,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:17,979 INFO L225 Difference]: With dead ends: 5475 [2021-06-05 20:02:17,984 INFO L226 Difference]: Without dead ends: 5475 [2021-06-05 20:02:17,985 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1312.4ms TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:02:18,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5475 states. [2021-06-05 20:02:18,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5475 to 3458. [2021-06-05 20:02:18,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3458 states, 3456 states have (on average 2.626736111111111) internal successors, (9078), 3457 states have internal predecessors, (9078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:18,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3458 states to 3458 states and 9078 transitions. [2021-06-05 20:02:18,050 INFO L78 Accepts]: Start accepts. Automaton has 3458 states and 9078 transitions. Word has length 113 [2021-06-05 20:02:18,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:18,050 INFO L482 AbstractCegarLoop]: Abstraction has 3458 states and 9078 transitions. [2021-06-05 20:02:18,050 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:18,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3458 states and 9078 transitions. [2021-06-05 20:02:18,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:02:18,053 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:18,053 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:18,053 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 20:02:18,053 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:18,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:18,054 INFO L82 PathProgramCache]: Analyzing trace with hash -450005055, now seen corresponding path program 27 times [2021-06-05 20:02:18,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:18,054 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861051897] [2021-06-05 20:02:18,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:18,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:18,564 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:18,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861051897] [2021-06-05 20:02:18,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861051897] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:18,564 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:18,564 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:18,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871929605] [2021-06-05 20:02:18,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:18,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:18,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:18,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:18,567 INFO L87 Difference]: Start difference. First operand 3458 states and 9078 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:19,665 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 20:02:20,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:20,361 INFO L93 Difference]: Finished difference Result 4851 states and 12025 transitions. [2021-06-05 20:02:20,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-05 20:02:20,362 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:02:20,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:20,367 INFO L225 Difference]: With dead ends: 4851 [2021-06-05 20:02:20,367 INFO L226 Difference]: Without dead ends: 4851 [2021-06-05 20:02:20,369 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1451.1ms TimeCoverageRelationStatistics Valid=322, Invalid=938, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 20:02:20,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4851 states. [2021-06-05 20:02:20,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4851 to 3458. [2021-06-05 20:02:20,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3458 states, 3456 states have (on average 2.626736111111111) internal successors, (9078), 3457 states have internal predecessors, (9078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:20,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3458 states to 3458 states and 9078 transitions. [2021-06-05 20:02:20,460 INFO L78 Accepts]: Start accepts. Automaton has 3458 states and 9078 transitions. Word has length 113 [2021-06-05 20:02:20,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:20,461 INFO L482 AbstractCegarLoop]: Abstraction has 3458 states and 9078 transitions. [2021-06-05 20:02:20,461 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:20,461 INFO L276 IsEmpty]: Start isEmpty. Operand 3458 states and 9078 transitions. [2021-06-05 20:02:20,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:02:20,465 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:20,465 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:20,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 20:02:20,465 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:20,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:20,466 INFO L82 PathProgramCache]: Analyzing trace with hash 511326097, now seen corresponding path program 28 times [2021-06-05 20:02:20,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:20,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746039780] [2021-06-05 20:02:20,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:20,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:20,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746039780] [2021-06-05 20:02:20,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746039780] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:20,911 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:20,912 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:20,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039422475] [2021-06-05 20:02:20,912 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:20,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:20,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:20,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:20,912 INFO L87 Difference]: Start difference. First operand 3458 states and 9078 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:21,755 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 20:02:22,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:22,196 INFO L93 Difference]: Finished difference Result 4343 states and 10955 transitions. [2021-06-05 20:02:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:02:22,196 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:02:22,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:22,200 INFO L225 Difference]: With dead ends: 4343 [2021-06-05 20:02:22,200 INFO L226 Difference]: Without dead ends: 4343 [2021-06-05 20:02:22,201 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 987.8ms TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:02:22,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4343 states. [2021-06-05 20:02:22,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4343 to 3428. [2021-06-05 20:02:22,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3428 states, 3426 states have (on average 2.62784588441331) internal successors, (9003), 3427 states have internal predecessors, (9003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:22,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 9003 transitions. [2021-06-05 20:02:22,257 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 9003 transitions. Word has length 113 [2021-06-05 20:02:22,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:22,257 INFO L482 AbstractCegarLoop]: Abstraction has 3428 states and 9003 transitions. [2021-06-05 20:02:22,257 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:22,257 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 9003 transitions. [2021-06-05 20:02:22,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:02:22,261 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:22,261 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:22,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 20:02:22,262 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:22,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:22,262 INFO L82 PathProgramCache]: Analyzing trace with hash -278542381, now seen corresponding path program 29 times [2021-06-05 20:02:22,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:22,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545999027] [2021-06-05 20:02:22,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:23,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:23,045 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:23,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545999027] [2021-06-05 20:02:23,046 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545999027] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:23,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:23,046 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:23,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047846502] [2021-06-05 20:02:23,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:23,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:23,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:23,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:23,047 INFO L87 Difference]: Start difference. First operand 3428 states and 9003 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:23,559 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-06-05 20:02:24,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:24,450 INFO L93 Difference]: Finished difference Result 5140 states and 12658 transitions. [2021-06-05 20:02:24,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:02:24,450 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:02:24,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:24,456 INFO L225 Difference]: With dead ends: 5140 [2021-06-05 20:02:24,456 INFO L226 Difference]: Without dead ends: 5140 [2021-06-05 20:02:24,456 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1455.2ms TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:02:24,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5140 states. [2021-06-05 20:02:24,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5140 to 3430. [2021-06-05 20:02:24,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3430 states, 3428 states have (on average 2.627771295215869) internal successors, (9008), 3429 states have internal predecessors, (9008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:24,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 9008 transitions. [2021-06-05 20:02:24,512 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 9008 transitions. Word has length 113 [2021-06-05 20:02:24,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:24,512 INFO L482 AbstractCegarLoop]: Abstraction has 3430 states and 9008 transitions. [2021-06-05 20:02:24,512 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:24,512 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 9008 transitions. [2021-06-05 20:02:24,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:02:24,515 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:24,516 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:24,516 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 20:02:24,516 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:24,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:24,516 INFO L82 PathProgramCache]: Analyzing trace with hash -512734705, now seen corresponding path program 30 times [2021-06-05 20:02:24,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:24,516 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161992055] [2021-06-05 20:02:24,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:24,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:24,928 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:24,928 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161992055] [2021-06-05 20:02:24,928 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161992055] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:24,928 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:24,928 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:24,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046132642] [2021-06-05 20:02:24,929 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:24,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:24,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:24,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:24,930 INFO L87 Difference]: Start difference. First operand 3430 states and 9008 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:25,868 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 20:02:26,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:26,342 INFO L93 Difference]: Finished difference Result 4810 states and 11943 transitions. [2021-06-05 20:02:26,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:02:26,366 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:02:26,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:26,371 INFO L225 Difference]: With dead ends: 4810 [2021-06-05 20:02:26,371 INFO L226 Difference]: Without dead ends: 4810 [2021-06-05 20:02:26,371 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1073.0ms TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:02:26,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-06-05 20:02:26,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 3422. [2021-06-05 20:02:26,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3422 states, 3420 states have (on average 2.6280701754385967) internal successors, (8988), 3421 states have internal predecessors, (8988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:26,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3422 states to 3422 states and 8988 transitions. [2021-06-05 20:02:26,428 INFO L78 Accepts]: Start accepts. Automaton has 3422 states and 8988 transitions. Word has length 113 [2021-06-05 20:02:26,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:26,428 INFO L482 AbstractCegarLoop]: Abstraction has 3422 states and 8988 transitions. [2021-06-05 20:02:26,428 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:26,428 INFO L276 IsEmpty]: Start isEmpty. Operand 3422 states and 8988 transitions. [2021-06-05 20:02:26,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:02:26,432 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:26,433 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:26,433 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 20:02:26,433 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:26,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:26,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1209197875, now seen corresponding path program 31 times [2021-06-05 20:02:26,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:26,433 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743654986] [2021-06-05 20:02:26,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:26,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:26,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:26,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743654986] [2021-06-05 20:02:26,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743654986] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:26,870 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:26,870 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:26,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300546062] [2021-06-05 20:02:26,870 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:26,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:26,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:26,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:26,871 INFO L87 Difference]: Start difference. First operand 3422 states and 8988 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:28,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:28,182 INFO L93 Difference]: Finished difference Result 4432 states and 11108 transitions. [2021-06-05 20:02:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:02:28,182 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:02:28,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:28,188 INFO L225 Difference]: With dead ends: 4432 [2021-06-05 20:02:28,188 INFO L226 Difference]: Without dead ends: 4432 [2021-06-05 20:02:28,189 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1009.8ms TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:02:28,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4432 states. [2021-06-05 20:02:28,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4432 to 3412. [2021-06-05 20:02:28,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3410 states have (on average 2.6284457478005865) internal successors, (8963), 3411 states have internal predecessors, (8963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:28,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 8963 transitions. [2021-06-05 20:02:28,254 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 8963 transitions. Word has length 113 [2021-06-05 20:02:28,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:28,254 INFO L482 AbstractCegarLoop]: Abstraction has 3412 states and 8963 transitions. [2021-06-05 20:02:28,254 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:28,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 8963 transitions. [2021-06-05 20:02:28,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:02:28,258 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:28,258 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:28,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 20:02:28,259 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:28,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:28,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1443390199, now seen corresponding path program 32 times [2021-06-05 20:02:28,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:28,261 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213512491] [2021-06-05 20:02:28,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:28,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:28,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:28,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213512491] [2021-06-05 20:02:28,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213512491] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:28,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:28,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:28,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095987001] [2021-06-05 20:02:28,956 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:28,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:28,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:28,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:28,961 INFO L87 Difference]: Start difference. First operand 3412 states and 8963 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:29,545 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-06-05 20:02:30,609 WARN L205 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2021-06-05 20:02:31,371 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2021-06-05 20:02:32,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:32,191 INFO L93 Difference]: Finished difference Result 4897 states and 12091 transitions. [2021-06-05 20:02:32,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:02:32,191 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:02:32,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:32,194 INFO L225 Difference]: With dead ends: 4897 [2021-06-05 20:02:32,194 INFO L226 Difference]: Without dead ends: 4897 [2021-06-05 20:02:32,195 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 2666.0ms TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 20:02:32,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4897 states. [2021-06-05 20:02:32,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4897 to 3410. [2021-06-05 20:02:32,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 3408 states have (on average 2.6285211267605635) internal successors, (8958), 3409 states have internal predecessors, (8958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:32,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 8958 transitions. [2021-06-05 20:02:32,237 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 8958 transitions. Word has length 113 [2021-06-05 20:02:32,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:32,237 INFO L482 AbstractCegarLoop]: Abstraction has 3410 states and 8958 transitions. [2021-06-05 20:02:32,237 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:32,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 8958 transitions. [2021-06-05 20:02:32,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 20:02:32,240 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:32,240 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:32,240 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 20:02:32,240 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:32,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:32,241 INFO L82 PathProgramCache]: Analyzing trace with hash -842310287, now seen corresponding path program 33 times [2021-06-05 20:02:32,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:32,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701497016] [2021-06-05 20:02:32,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:32,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:32,668 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:32,668 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701497016] [2021-06-05 20:02:32,668 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701497016] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:32,668 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:32,668 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:32,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933814601] [2021-06-05 20:02:32,669 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:32,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:32,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:32,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:32,669 INFO L87 Difference]: Start difference. First operand 3410 states and 8958 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:33,262 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-06-05 20:02:33,556 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2021-06-05 20:02:34,142 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-05 20:02:34,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:34,531 INFO L93 Difference]: Finished difference Result 4093 states and 10381 transitions. [2021-06-05 20:02:34,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:02:34,531 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 20:02:34,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:34,535 INFO L225 Difference]: With dead ends: 4093 [2021-06-05 20:02:34,535 INFO L226 Difference]: Without dead ends: 4093 [2021-06-05 20:02:34,536 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1600.5ms TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 20:02:34,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4093 states. [2021-06-05 20:02:34,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4093 to 3037. [2021-06-05 20:02:34,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3037 states, 3036 states have (on average 2.6831357048748354) internal successors, (8146), 3036 states have internal predecessors, (8146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:34,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3037 states to 3037 states and 8146 transitions. [2021-06-05 20:02:34,580 INFO L78 Accepts]: Start accepts. Automaton has 3037 states and 8146 transitions. Word has length 113 [2021-06-05 20:02:34,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:34,580 INFO L482 AbstractCegarLoop]: Abstraction has 3037 states and 8146 transitions. [2021-06-05 20:02:34,580 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:34,580 INFO L276 IsEmpty]: Start isEmpty. Operand 3037 states and 8146 transitions. [2021-06-05 20:02:34,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:02:34,583 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:34,592 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:34,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 20:02:34,593 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:34,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:34,593 INFO L82 PathProgramCache]: Analyzing trace with hash -264861615, now seen corresponding path program 1 times [2021-06-05 20:02:34,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:34,593 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065300080] [2021-06-05 20:02:34,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:34,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:34,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:34,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065300080] [2021-06-05 20:02:34,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065300080] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:34,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:34,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 20:02:34,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600105596] [2021-06-05 20:02:34,940 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 20:02:34,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:34,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 20:02:34,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-06-05 20:02:34,940 INFO L87 Difference]: Start difference. First operand 3037 states and 8146 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:35,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:35,368 INFO L93 Difference]: Finished difference Result 3487 states and 9268 transitions. [2021-06-05 20:02:35,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 20:02:35,368 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:02:35,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:35,372 INFO L225 Difference]: With dead ends: 3487 [2021-06-05 20:02:35,372 INFO L226 Difference]: Without dead ends: 3487 [2021-06-05 20:02:35,372 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 435.5ms TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:02:35,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3487 states. [2021-06-05 20:02:35,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3487 to 3205. [2021-06-05 20:02:35,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3204 states have (on average 2.6697877652933832) internal successors, (8554), 3204 states have internal predecessors, (8554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:35,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 8554 transitions. [2021-06-05 20:02:35,421 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 8554 transitions. Word has length 119 [2021-06-05 20:02:35,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:35,422 INFO L482 AbstractCegarLoop]: Abstraction has 3205 states and 8554 transitions. [2021-06-05 20:02:35,422 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:35,422 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 8554 transitions. [2021-06-05 20:02:35,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:02:35,425 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:35,425 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:35,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 20:02:35,425 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:35,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:35,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1173814451, now seen corresponding path program 2 times [2021-06-05 20:02:35,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:35,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887497114] [2021-06-05 20:02:35,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:36,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:36,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:36,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887497114] [2021-06-05 20:02:36,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887497114] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:36,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:36,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:02:36,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274529515] [2021-06-05 20:02:36,551 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:02:36,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:36,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:02:36,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:02:36,552 INFO L87 Difference]: Start difference. First operand 3205 states and 8554 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:37,651 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2021-06-05 20:02:37,843 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2021-06-05 20:02:38,123 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-06-05 20:02:40,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:40,445 INFO L93 Difference]: Finished difference Result 4951 states and 13018 transitions. [2021-06-05 20:02:40,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:02:40,445 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:02:40,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:40,453 INFO L225 Difference]: With dead ends: 4951 [2021-06-05 20:02:40,453 INFO L226 Difference]: Without dead ends: 4756 [2021-06-05 20:02:40,454 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 3220.8ms TimeCoverageRelationStatistics Valid=569, Invalid=2853, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:02:40,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4756 states. [2021-06-05 20:02:40,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4756 to 3769. [2021-06-05 20:02:40,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3769 states, 3768 states have (on average 2.6910828025477707) internal successors, (10140), 3768 states have internal predecessors, (10140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:40,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3769 states to 3769 states and 10140 transitions. [2021-06-05 20:02:40,517 INFO L78 Accepts]: Start accepts. Automaton has 3769 states and 10140 transitions. Word has length 119 [2021-06-05 20:02:40,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:40,517 INFO L482 AbstractCegarLoop]: Abstraction has 3769 states and 10140 transitions. [2021-06-05 20:02:40,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:40,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3769 states and 10140 transitions. [2021-06-05 20:02:40,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:02:40,522 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:40,522 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:40,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 20:02:40,522 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:40,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:40,523 INFO L82 PathProgramCache]: Analyzing trace with hash -64175185, now seen corresponding path program 1 times [2021-06-05 20:02:40,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:40,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086787234] [2021-06-05 20:02:40,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:41,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:41,372 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:41,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086787234] [2021-06-05 20:02:41,372 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086787234] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:41,372 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:41,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-06-05 20:02:41,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868513898] [2021-06-05 20:02:41,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-05 20:02:41,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:41,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-05 20:02:41,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2021-06-05 20:02:41,374 INFO L87 Difference]: Start difference. First operand 3769 states and 10140 transitions. Second operand has 21 states, 21 states have (on average 5.666666666666667) internal successors, (119), 21 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:43,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:43,427 INFO L93 Difference]: Finished difference Result 6389 states and 17123 transitions. [2021-06-05 20:02:43,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:02:43,427 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.666666666666667) internal successors, (119), 21 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:02:43,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:43,436 INFO L225 Difference]: With dead ends: 6389 [2021-06-05 20:02:43,436 INFO L226 Difference]: Without dead ends: 6339 [2021-06-05 20:02:43,437 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 1597.0ms TimeCoverageRelationStatistics Valid=430, Invalid=1550, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 20:02:43,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6339 states. [2021-06-05 20:02:43,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6339 to 6251. [2021-06-05 20:02:43,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6251 states, 6250 states have (on average 2.70224) internal successors, (16889), 6250 states have internal predecessors, (16889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:43,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6251 states to 6251 states and 16889 transitions. [2021-06-05 20:02:43,531 INFO L78 Accepts]: Start accepts. Automaton has 6251 states and 16889 transitions. Word has length 119 [2021-06-05 20:02:43,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:43,531 INFO L482 AbstractCegarLoop]: Abstraction has 6251 states and 16889 transitions. [2021-06-05 20:02:43,532 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.666666666666667) internal successors, (119), 21 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:43,532 INFO L276 IsEmpty]: Start isEmpty. Operand 6251 states and 16889 transitions. [2021-06-05 20:02:43,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:02:43,539 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:43,539 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:43,540 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 20:02:43,540 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:43,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:43,540 INFO L82 PathProgramCache]: Analyzing trace with hash -2117305647, now seen corresponding path program 3 times [2021-06-05 20:02:43,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:43,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104324116] [2021-06-05 20:02:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:44,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:44,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:44,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104324116] [2021-06-05 20:02:44,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104324116] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:44,506 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:44,506 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-05 20:02:44,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803739103] [2021-06-05 20:02:44,506 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-05 20:02:44,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:44,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-05 20:02:44,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:02:44,507 INFO L87 Difference]: Start difference. First operand 6251 states and 16889 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:45,701 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-06-05 20:02:45,919 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-06-05 20:02:46,247 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-06-05 20:02:47,037 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-06-05 20:02:48,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:48,909 INFO L93 Difference]: Finished difference Result 8779 states and 23303 transitions. [2021-06-05 20:02:48,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:02:48,910 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:02:48,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:48,917 INFO L225 Difference]: With dead ends: 8779 [2021-06-05 20:02:48,917 INFO L226 Difference]: Without dead ends: 8013 [2021-06-05 20:02:48,919 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 3742.0ms TimeCoverageRelationStatistics Valid=646, Invalid=3014, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 20:02:48,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8013 states. [2021-06-05 20:02:49,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8013 to 6371. [2021-06-05 20:02:49,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6371 states, 6370 states have (on average 2.685243328100471) internal successors, (17105), 6370 states have internal predecessors, (17105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:49,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6371 states to 6371 states and 17105 transitions. [2021-06-05 20:02:49,032 INFO L78 Accepts]: Start accepts. Automaton has 6371 states and 17105 transitions. Word has length 119 [2021-06-05 20:02:49,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:49,032 INFO L482 AbstractCegarLoop]: Abstraction has 6371 states and 17105 transitions. [2021-06-05 20:02:49,032 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:49,032 INFO L276 IsEmpty]: Start isEmpty. Operand 6371 states and 17105 transitions. [2021-06-05 20:02:49,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:02:49,041 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:49,049 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:49,050 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 20:02:49,051 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:49,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:49,059 INFO L82 PathProgramCache]: Analyzing trace with hash -908880283, now seen corresponding path program 4 times [2021-06-05 20:02:49,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:49,060 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419046709] [2021-06-05 20:02:49,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:50,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:50,027 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:50,027 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419046709] [2021-06-05 20:02:50,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419046709] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:50,027 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:50,028 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-05 20:02:50,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349287877] [2021-06-05 20:02:50,028 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-05 20:02:50,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:50,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-05 20:02:50,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:02:50,029 INFO L87 Difference]: Start difference. First operand 6371 states and 17105 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:51,126 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-06-05 20:02:51,316 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-06-05 20:02:51,603 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-06-05 20:02:53,105 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2021-06-05 20:02:54,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:54,585 INFO L93 Difference]: Finished difference Result 8204 states and 21680 transitions. [2021-06-05 20:02:54,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 20:02:54,586 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:02:54,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:54,595 INFO L225 Difference]: With dead ends: 8204 [2021-06-05 20:02:54,595 INFO L226 Difference]: Without dead ends: 7365 [2021-06-05 20:02:54,596 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 3688.3ms TimeCoverageRelationStatistics Valid=649, Invalid=3257, Unknown=0, NotChecked=0, Total=3906 [2021-06-05 20:02:54,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7365 states. [2021-06-05 20:02:54,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7365 to 5723. [2021-06-05 20:02:54,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5723 states, 5722 states have (on average 2.686648025166026) internal successors, (15373), 5722 states have internal predecessors, (15373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:54,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5723 states to 5723 states and 15373 transitions. [2021-06-05 20:02:54,706 INFO L78 Accepts]: Start accepts. Automaton has 5723 states and 15373 transitions. Word has length 119 [2021-06-05 20:02:54,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:54,706 INFO L482 AbstractCegarLoop]: Abstraction has 5723 states and 15373 transitions. [2021-06-05 20:02:54,706 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:54,706 INFO L276 IsEmpty]: Start isEmpty. Operand 5723 states and 15373 transitions. [2021-06-05 20:02:54,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:02:54,714 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:54,714 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:54,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 20:02:54,714 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:54,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:54,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1513981887, now seen corresponding path program 5 times [2021-06-05 20:02:54,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:54,714 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325134100] [2021-06-05 20:02:54,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:55,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:55,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:55,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325134100] [2021-06-05 20:02:55,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325134100] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:55,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:55,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:02:55,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934016538] [2021-06-05 20:02:55,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:02:55,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:55,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:02:55,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:02:55,516 INFO L87 Difference]: Start difference. First operand 5723 states and 15373 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:56,409 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2021-06-05 20:02:56,574 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2021-06-05 20:02:56,809 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-06-05 20:02:57,219 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-06-05 20:02:57,912 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-06-05 20:02:59,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:59,021 INFO L93 Difference]: Finished difference Result 6859 states and 18101 transitions. [2021-06-05 20:02:59,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:02:59,022 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:02:59,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:59,031 INFO L225 Difference]: With dead ends: 6859 [2021-06-05 20:02:59,031 INFO L226 Difference]: Without dead ends: 6532 [2021-06-05 20:02:59,032 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 2973.5ms TimeCoverageRelationStatistics Valid=620, Invalid=2802, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:02:59,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6532 states. [2021-06-05 20:02:59,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6532 to 5715. [2021-06-05 20:02:59,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5715 states, 5714 states have (on average 2.6862093104655234) internal successors, (15349), 5714 states have internal predecessors, (15349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:59,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5715 states to 5715 states and 15349 transitions. [2021-06-05 20:02:59,136 INFO L78 Accepts]: Start accepts. Automaton has 5715 states and 15349 transitions. Word has length 119 [2021-06-05 20:02:59,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:59,136 INFO L482 AbstractCegarLoop]: Abstraction has 5715 states and 15349 transitions. [2021-06-05 20:02:59,136 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:59,137 INFO L276 IsEmpty]: Start isEmpty. Operand 5715 states and 15349 transitions. [2021-06-05 20:02:59,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:02:59,144 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:59,144 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:02:59,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 20:02:59,144 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:02:59,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:59,144 INFO L82 PathProgramCache]: Analyzing trace with hash -809666573, now seen corresponding path program 6 times [2021-06-05 20:02:59,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:59,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957772560] [2021-06-05 20:02:59,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:00,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:00,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:00,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957772560] [2021-06-05 20:03:00,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957772560] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:00,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:00,234 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 20:03:00,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744208463] [2021-06-05 20:03:00,234 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 20:03:00,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:00,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 20:03:00,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2021-06-05 20:03:00,235 INFO L87 Difference]: Start difference. First operand 5715 states and 15349 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:01,483 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 20:03:02,133 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-06-05 20:03:02,282 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2021-06-05 20:03:02,429 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2021-06-05 20:03:03,034 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-06-05 20:03:04,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:04,071 INFO L93 Difference]: Finished difference Result 6577 states and 17301 transitions. [2021-06-05 20:03:04,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-06-05 20:03:04,071 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:03:04,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:04,077 INFO L225 Difference]: With dead ends: 6577 [2021-06-05 20:03:04,077 INFO L226 Difference]: Without dead ends: 6190 [2021-06-05 20:03:04,077 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 3487.8ms TimeCoverageRelationStatistics Valid=793, Invalid=3763, Unknown=0, NotChecked=0, Total=4556 [2021-06-05 20:03:04,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2021-06-05 20:03:04,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 5707. [2021-06-05 20:03:04,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5707 states, 5706 states have (on average 2.6843673326323167) internal successors, (15317), 5706 states have internal predecessors, (15317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:04,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5707 states to 5707 states and 15317 transitions. [2021-06-05 20:03:04,154 INFO L78 Accepts]: Start accepts. Automaton has 5707 states and 15317 transitions. Word has length 119 [2021-06-05 20:03:04,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:04,154 INFO L482 AbstractCegarLoop]: Abstraction has 5707 states and 15317 transitions. [2021-06-05 20:03:04,154 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:04,154 INFO L276 IsEmpty]: Start isEmpty. Operand 5707 states and 15317 transitions. [2021-06-05 20:03:04,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:03:04,159 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:04,159 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:03:04,159 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-05 20:03:04,159 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:03:04,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:04,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1242567051, now seen corresponding path program 7 times [2021-06-05 20:03:04,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:04,159 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425936789] [2021-06-05 20:03:04,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:04,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:04,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:04,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425936789] [2021-06-05 20:03:04,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425936789] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:04,987 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:04,987 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:03:04,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361234420] [2021-06-05 20:03:04,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:03:04,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:04,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:03:04,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:03:04,988 INFO L87 Difference]: Start difference. First operand 5707 states and 15317 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:06,195 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-06-05 20:03:08,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:08,355 INFO L93 Difference]: Finished difference Result 8739 states and 23005 transitions. [2021-06-05 20:03:08,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 20:03:08,355 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:03:08,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:08,366 INFO L225 Difference]: With dead ends: 8739 [2021-06-05 20:03:08,366 INFO L226 Difference]: Without dead ends: 8440 [2021-06-05 20:03:08,367 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 2846.7ms TimeCoverageRelationStatistics Valid=596, Invalid=2944, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:03:08,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8440 states. [2021-06-05 20:03:08,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8440 to 6343. [2021-06-05 20:03:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6343 states, 6342 states have (on average 2.6825922421948913) internal successors, (17013), 6342 states have internal predecessors, (17013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:08,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6343 states to 6343 states and 17013 transitions. [2021-06-05 20:03:08,472 INFO L78 Accepts]: Start accepts. Automaton has 6343 states and 17013 transitions. Word has length 119 [2021-06-05 20:03:08,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:08,472 INFO L482 AbstractCegarLoop]: Abstraction has 6343 states and 17013 transitions. [2021-06-05 20:03:08,472 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:08,472 INFO L276 IsEmpty]: Start isEmpty. Operand 6343 states and 17013 transitions. [2021-06-05 20:03:08,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:03:08,478 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:08,479 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:03:08,479 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-05 20:03:08,479 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:03:08,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:08,479 INFO L82 PathProgramCache]: Analyzing trace with hash -238719853, now seen corresponding path program 8 times [2021-06-05 20:03:08,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:08,479 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751150108] [2021-06-05 20:03:08,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:09,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:09,238 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:09,239 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751150108] [2021-06-05 20:03:09,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751150108] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:09,239 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:09,239 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-05 20:03:09,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069150906] [2021-06-05 20:03:09,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-05 20:03:09,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:09,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-05 20:03:09,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:03:09,240 INFO L87 Difference]: Start difference. First operand 6343 states and 17013 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:10,470 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-06-05 20:03:12,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:12,597 INFO L93 Difference]: Finished difference Result 9293 states and 24519 transitions. [2021-06-05 20:03:12,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 20:03:12,597 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:03:12,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:12,605 INFO L225 Difference]: With dead ends: 9293 [2021-06-05 20:03:12,605 INFO L226 Difference]: Without dead ends: 8527 [2021-06-05 20:03:12,606 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 653 ImplicationChecksByTransitivity, 2873.4ms TimeCoverageRelationStatistics Valid=675, Invalid=3107, Unknown=0, NotChecked=0, Total=3782 [2021-06-05 20:03:12,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8527 states. [2021-06-05 20:03:12,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8527 to 6463. [2021-06-05 20:03:12,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6463 states, 6462 states have (on average 2.6662024141132776) internal successors, (17229), 6462 states have internal predecessors, (17229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:12,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6463 states to 6463 states and 17229 transitions. [2021-06-05 20:03:12,711 INFO L78 Accepts]: Start accepts. Automaton has 6463 states and 17229 transitions. Word has length 119 [2021-06-05 20:03:12,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:12,711 INFO L482 AbstractCegarLoop]: Abstraction has 6463 states and 17229 transitions. [2021-06-05 20:03:12,711 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:12,711 INFO L276 IsEmpty]: Start isEmpty. Operand 6463 states and 17229 transitions. [2021-06-05 20:03:12,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:03:12,717 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:12,717 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:03:12,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-05 20:03:12,717 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:03:12,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:12,717 INFO L82 PathProgramCache]: Analyzing trace with hash 969705511, now seen corresponding path program 9 times [2021-06-05 20:03:12,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:12,717 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268392621] [2021-06-05 20:03:12,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:13,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:13,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:13,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268392621] [2021-06-05 20:03:13,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268392621] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:13,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:13,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-05 20:03:13,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140949402] [2021-06-05 20:03:13,658 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-05 20:03:13,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:13,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-05 20:03:13,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:03:13,658 INFO L87 Difference]: Start difference. First operand 6463 states and 17229 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:14,427 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2021-06-05 20:03:15,045 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-06-05 20:03:15,272 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2021-06-05 20:03:15,722 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-06-05 20:03:16,464 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-06-05 20:03:16,961 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-06-05 20:03:17,202 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2021-06-05 20:03:18,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:18,848 INFO L93 Difference]: Finished difference Result 8718 states and 22896 transitions. [2021-06-05 20:03:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-05 20:03:18,848 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:03:18,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:18,857 INFO L225 Difference]: With dead ends: 8718 [2021-06-05 20:03:18,860 INFO L226 Difference]: Without dead ends: 7879 [2021-06-05 20:03:18,861 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 730 ImplicationChecksByTransitivity, 4369.7ms TimeCoverageRelationStatistics Valid=680, Invalid=3352, Unknown=0, NotChecked=0, Total=4032 [2021-06-05 20:03:18,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7879 states. [2021-06-05 20:03:18,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7879 to 5815. [2021-06-05 20:03:18,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5815 states, 5814 states have (on average 2.66546267629859) internal successors, (15497), 5814 states have internal predecessors, (15497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:18,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5815 states to 5815 states and 15497 transitions. [2021-06-05 20:03:18,969 INFO L78 Accepts]: Start accepts. Automaton has 5815 states and 15497 transitions. Word has length 119 [2021-06-05 20:03:18,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:18,985 INFO L482 AbstractCegarLoop]: Abstraction has 5815 states and 15497 transitions. [2021-06-05 20:03:18,985 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:18,986 INFO L276 IsEmpty]: Start isEmpty. Operand 5815 states and 15497 transitions. [2021-06-05 20:03:18,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:03:18,992 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:18,992 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:03:18,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-05 20:03:18,993 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:03:18,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:18,993 INFO L82 PathProgramCache]: Analyzing trace with hash 364603907, now seen corresponding path program 10 times [2021-06-05 20:03:18,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:18,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405962814] [2021-06-05 20:03:18,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:19,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:19,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:19,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405962814] [2021-06-05 20:03:19,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405962814] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:19,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:19,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:03:19,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821428649] [2021-06-05 20:03:19,973 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:03:19,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:19,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:03:19,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:03:19,974 INFO L87 Difference]: Start difference. First operand 5815 states and 15497 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:21,595 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-06-05 20:03:23,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:23,094 INFO L93 Difference]: Finished difference Result 7345 states and 19235 transitions. [2021-06-05 20:03:23,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 20:03:23,095 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:03:23,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:23,102 INFO L225 Difference]: With dead ends: 7345 [2021-06-05 20:03:23,102 INFO L226 Difference]: Without dead ends: 7018 [2021-06-05 20:03:23,103 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 2877.1ms TimeCoverageRelationStatistics Valid=650, Invalid=2890, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:03:23,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7018 states. [2021-06-05 20:03:23,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7018 to 5695. [2021-06-05 20:03:23,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5695 states, 5694 states have (on average 2.6794871794871793) internal successors, (15257), 5694 states have internal predecessors, (15257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:23,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5695 states to 5695 states and 15257 transitions. [2021-06-05 20:03:23,188 INFO L78 Accepts]: Start accepts. Automaton has 5695 states and 15257 transitions. Word has length 119 [2021-06-05 20:03:23,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:23,188 INFO L482 AbstractCegarLoop]: Abstraction has 5695 states and 15257 transitions. [2021-06-05 20:03:23,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 5695 states and 15257 transitions. [2021-06-05 20:03:23,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:03:23,193 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:23,193 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:03:23,193 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-05 20:03:23,193 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:03:23,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:23,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1137653615, now seen corresponding path program 11 times [2021-06-05 20:03:23,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:23,194 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171651014] [2021-06-05 20:03:23,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:24,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:24,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:24,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171651014] [2021-06-05 20:03:24,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171651014] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:24,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:24,098 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:03:24,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018676708] [2021-06-05 20:03:24,098 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:03:24,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:24,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:03:24,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:03:24,098 INFO L87 Difference]: Start difference. First operand 5695 states and 15257 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:27,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:27,169 INFO L93 Difference]: Finished difference Result 8203 states and 21601 transitions. [2021-06-05 20:03:27,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 20:03:27,170 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:03:27,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:27,180 INFO L225 Difference]: With dead ends: 8203 [2021-06-05 20:03:27,180 INFO L226 Difference]: Without dead ends: 7904 [2021-06-05 20:03:27,181 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 2834.9ms TimeCoverageRelationStatistics Valid=544, Invalid=2648, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 20:03:27,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7904 states. [2021-06-05 20:03:27,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7904 to 6271. [2021-06-05 20:03:27,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6271 states, 6270 states have (on average 2.6751196172248806) internal successors, (16773), 6270 states have internal predecessors, (16773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:27,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6271 states to 6271 states and 16773 transitions. [2021-06-05 20:03:27,336 INFO L78 Accepts]: Start accepts. Automaton has 6271 states and 16773 transitions. Word has length 119 [2021-06-05 20:03:27,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:27,336 INFO L482 AbstractCegarLoop]: Abstraction has 6271 states and 16773 transitions. [2021-06-05 20:03:27,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:27,336 INFO L276 IsEmpty]: Start isEmpty. Operand 6271 states and 16773 transitions. [2021-06-05 20:03:27,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:03:27,344 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:27,344 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:03:27,344 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-05 20:03:27,344 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:03:27,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:27,345 INFO L82 PathProgramCache]: Analyzing trace with hash -133806417, now seen corresponding path program 12 times [2021-06-05 20:03:27,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:27,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057398510] [2021-06-05 20:03:27,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:28,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:28,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057398510] [2021-06-05 20:03:28,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057398510] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:28,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:28,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:03:28,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534412269] [2021-06-05 20:03:28,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:03:28,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:28,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:03:28,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:03:28,267 INFO L87 Difference]: Start difference. First operand 6271 states and 16773 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:29,304 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-06-05 20:03:29,564 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-06-05 20:03:29,863 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2021-06-05 20:03:30,461 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2021-06-05 20:03:30,616 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2021-06-05 20:03:32,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:32,313 INFO L93 Difference]: Finished difference Result 8784 states and 23053 transitions. [2021-06-05 20:03:32,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 20:03:32,314 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:03:32,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:32,323 INFO L225 Difference]: With dead ends: 8784 [2021-06-05 20:03:32,323 INFO L226 Difference]: Without dead ends: 8018 [2021-06-05 20:03:32,331 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 3565.6ms TimeCoverageRelationStatistics Valid=653, Invalid=3007, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 20:03:32,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8018 states. [2021-06-05 20:03:32,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8018 to 6391. [2021-06-05 20:03:32,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6391 states, 6390 states have (on average 2.6586854460093896) internal successors, (16989), 6390 states have internal predecessors, (16989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:32,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6391 states to 6391 states and 16989 transitions. [2021-06-05 20:03:32,445 INFO L78 Accepts]: Start accepts. Automaton has 6391 states and 16989 transitions. Word has length 119 [2021-06-05 20:03:32,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:32,445 INFO L482 AbstractCegarLoop]: Abstraction has 6391 states and 16989 transitions. [2021-06-05 20:03:32,445 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:32,446 INFO L276 IsEmpty]: Start isEmpty. Operand 6391 states and 16989 transitions. [2021-06-05 20:03:32,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:03:32,453 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:32,453 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:03:32,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-05 20:03:32,454 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:03:32,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:32,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1074618947, now seen corresponding path program 13 times [2021-06-05 20:03:32,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:32,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576147101] [2021-06-05 20:03:32,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:32,992 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2021-06-05 20:03:33,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:33,446 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:33,446 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576147101] [2021-06-05 20:03:33,446 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576147101] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:33,446 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:33,447 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-05 20:03:33,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274809113] [2021-06-05 20:03:33,447 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-05 20:03:33,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:33,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-05 20:03:33,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:03:33,448 INFO L87 Difference]: Start difference. First operand 6391 states and 16989 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:34,632 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2021-06-05 20:03:37,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:37,112 INFO L93 Difference]: Finished difference Result 8209 states and 21430 transitions. [2021-06-05 20:03:37,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-05 20:03:37,113 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:03:37,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:37,120 INFO L225 Difference]: With dead ends: 8209 [2021-06-05 20:03:37,120 INFO L226 Difference]: Without dead ends: 7370 [2021-06-05 20:03:37,121 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 3196.8ms TimeCoverageRelationStatistics Valid=662, Invalid=3370, Unknown=0, NotChecked=0, Total=4032 [2021-06-05 20:03:37,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7370 states. [2021-06-05 20:03:37,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7370 to 5743. [2021-06-05 20:03:37,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5743 states, 5742 states have (on average 2.648728665970045) internal successors, (15209), 5742 states have internal predecessors, (15209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:37,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5743 states to 5743 states and 15209 transitions. [2021-06-05 20:03:37,206 INFO L78 Accepts]: Start accepts. Automaton has 5743 states and 15209 transitions. Word has length 119 [2021-06-05 20:03:37,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:37,206 INFO L482 AbstractCegarLoop]: Abstraction has 5743 states and 15209 transitions. [2021-06-05 20:03:37,206 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5743 states and 15209 transitions. [2021-06-05 20:03:37,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:03:37,211 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:37,212 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:03:37,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-05 20:03:37,212 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:03:37,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:37,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1731550431, now seen corresponding path program 14 times [2021-06-05 20:03:37,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:37,212 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891766283] [2021-06-05 20:03:37,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:38,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:38,078 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:38,078 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891766283] [2021-06-05 20:03:38,078 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891766283] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:38,078 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:38,078 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:03:38,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115438007] [2021-06-05 20:03:38,079 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:03:38,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:38,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:03:38,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:03:38,079 INFO L87 Difference]: Start difference. First operand 5743 states and 15209 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:41,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:41,206 INFO L93 Difference]: Finished difference Result 7643 states and 19796 transitions. [2021-06-05 20:03:41,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 20:03:41,207 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:03:41,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:41,212 INFO L225 Difference]: With dead ends: 7643 [2021-06-05 20:03:41,212 INFO L226 Difference]: Without dead ends: 7143 [2021-06-05 20:03:41,212 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 2713.4ms TimeCoverageRelationStatistics Valid=590, Invalid=2950, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:03:41,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7143 states. [2021-06-05 20:03:41,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7143 to 5575. [2021-06-05 20:03:41,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5575 states, 5574 states have (on average 2.6639756010046645) internal successors, (14849), 5574 states have internal predecessors, (14849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:41,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5575 states to 5575 states and 14849 transitions. [2021-06-05 20:03:41,288 INFO L78 Accepts]: Start accepts. Automaton has 5575 states and 14849 transitions. Word has length 119 [2021-06-05 20:03:41,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:41,288 INFO L482 AbstractCegarLoop]: Abstraction has 5575 states and 14849 transitions. [2021-06-05 20:03:41,288 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:41,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5575 states and 14849 transitions. [2021-06-05 20:03:41,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:03:41,293 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:41,294 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:03:41,294 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-05 20:03:41,294 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:03:41,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:41,294 INFO L82 PathProgramCache]: Analyzing trace with hash -884383883, now seen corresponding path program 15 times [2021-06-05 20:03:41,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:41,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701705184] [2021-06-05 20:03:41,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:42,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:42,060 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:42,060 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701705184] [2021-06-05 20:03:42,060 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701705184] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:42,060 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:42,060 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:03:42,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971142536] [2021-06-05 20:03:42,060 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:03:42,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:42,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:03:42,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:03:42,061 INFO L87 Difference]: Start difference. First operand 5575 states and 14849 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:43,465 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-06-05 20:03:44,841 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-06-05 20:03:45,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:45,699 INFO L93 Difference]: Finished difference Result 6701 states and 17443 transitions. [2021-06-05 20:03:45,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 20:03:45,699 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:03:45,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:45,706 INFO L225 Difference]: With dead ends: 6701 [2021-06-05 20:03:45,706 INFO L226 Difference]: Without dead ends: 6398 [2021-06-05 20:03:45,706 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 3260.2ms TimeCoverageRelationStatistics Valid=650, Invalid=2890, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:03:45,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6398 states. [2021-06-05 20:03:45,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6398 to 5583. [2021-06-05 20:03:45,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5583 states, 5582 states have (on average 2.663024005732712) internal successors, (14865), 5582 states have internal predecessors, (14865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:45,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 14865 transitions. [2021-06-05 20:03:45,794 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 14865 transitions. Word has length 119 [2021-06-05 20:03:45,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:45,794 INFO L482 AbstractCegarLoop]: Abstraction has 5583 states and 14865 transitions. [2021-06-05 20:03:45,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:45,794 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 14865 transitions. [2021-06-05 20:03:45,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:03:45,801 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:45,801 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:03:45,801 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-05 20:03:45,801 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:03:45,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:45,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1266691921, now seen corresponding path program 16 times [2021-06-05 20:03:45,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:45,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99438774] [2021-06-05 20:03:45,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:46,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:46,932 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:46,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99438774] [2021-06-05 20:03:46,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99438774] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:46,932 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:46,932 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 20:03:46,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751033977] [2021-06-05 20:03:46,932 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 20:03:46,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:46,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 20:03:46,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2021-06-05 20:03:46,933 INFO L87 Difference]: Start difference. First operand 5583 states and 14865 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:47,939 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2021-06-05 20:03:48,224 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-06-05 20:03:48,568 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-06-05 20:03:49,033 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2021-06-05 20:03:49,299 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-06-05 20:03:49,852 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-06-05 20:03:51,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:51,278 INFO L93 Difference]: Finished difference Result 6628 states and 17272 transitions. [2021-06-05 20:03:51,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-06-05 20:03:51,278 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:03:51,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:51,286 INFO L225 Difference]: With dead ends: 6628 [2021-06-05 20:03:51,286 INFO L226 Difference]: Without dead ends: 6268 [2021-06-05 20:03:51,287 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 940 ImplicationChecksByTransitivity, 4022.2ms TimeCoverageRelationStatistics Valid=768, Invalid=3788, Unknown=0, NotChecked=0, Total=4556 [2021-06-05 20:03:51,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6268 states. [2021-06-05 20:03:51,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6268 to 5555. [2021-06-05 20:03:51,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5555 states, 5554 states have (on average 2.6660064818149083) internal successors, (14807), 5554 states have internal predecessors, (14807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:51,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5555 states to 5555 states and 14807 transitions. [2021-06-05 20:03:51,380 INFO L78 Accepts]: Start accepts. Automaton has 5555 states and 14807 transitions. Word has length 119 [2021-06-05 20:03:51,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:51,380 INFO L482 AbstractCegarLoop]: Abstraction has 5555 states and 14807 transitions. [2021-06-05 20:03:51,380 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:51,380 INFO L276 IsEmpty]: Start isEmpty. Operand 5555 states and 14807 transitions. [2021-06-05 20:03:51,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:03:51,386 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:51,391 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:03:51,391 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-05 20:03:51,391 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:03:51,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:51,392 INFO L82 PathProgramCache]: Analyzing trace with hash -873582399, now seen corresponding path program 17 times [2021-06-05 20:03:51,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:51,392 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690722226] [2021-06-05 20:03:51,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:52,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:52,745 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:52,745 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690722226] [2021-06-05 20:03:52,745 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690722226] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:52,746 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:52,746 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 20:03:52,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644658368] [2021-06-05 20:03:52,746 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 20:03:52,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:52,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 20:03:52,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2021-06-05 20:03:52,747 INFO L87 Difference]: Start difference. First operand 5555 states and 14807 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:54,258 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-06-05 20:03:54,451 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-06-05 20:03:54,784 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 62 [2021-06-05 20:03:54,971 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-06-05 20:03:55,144 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-06-05 20:03:55,312 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-06-05 20:03:55,532 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-06-05 20:03:57,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:57,332 INFO L93 Difference]: Finished difference Result 6333 states and 16469 transitions. [2021-06-05 20:03:57,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-05 20:03:57,333 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:03:57,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:57,338 INFO L225 Difference]: With dead ends: 6333 [2021-06-05 20:03:57,339 INFO L226 Difference]: Without dead ends: 6018 [2021-06-05 20:03:57,339 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1120 ImplicationChecksByTransitivity, 4352.9ms TimeCoverageRelationStatistics Valid=858, Invalid=4112, Unknown=0, NotChecked=0, Total=4970 [2021-06-05 20:03:57,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-06-05 20:03:57,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 5583. [2021-06-05 20:03:57,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5583 states, 5582 states have (on average 2.663024005732712) internal successors, (14865), 5582 states have internal predecessors, (14865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:57,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 14865 transitions. [2021-06-05 20:03:57,427 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 14865 transitions. Word has length 119 [2021-06-05 20:03:57,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:57,427 INFO L482 AbstractCegarLoop]: Abstraction has 5583 states and 14865 transitions. [2021-06-05 20:03:57,427 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:57,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 14865 transitions. [2021-06-05 20:03:57,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:03:57,434 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:57,434 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:03:57,434 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-05 20:03:57,434 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:03:57,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:57,435 INFO L82 PathProgramCache]: Analyzing trace with hash -354221629, now seen corresponding path program 18 times [2021-06-05 20:03:57,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:57,435 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634196624] [2021-06-05 20:03:57,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:58,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:58,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:58,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634196624] [2021-06-05 20:03:58,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634196624] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:58,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:58,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 20:03:58,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191694553] [2021-06-05 20:03:58,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 20:03:58,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:58,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 20:03:58,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2021-06-05 20:03:58,660 INFO L87 Difference]: Start difference. First operand 5583 states and 14865 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:59,996 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-06-05 20:04:00,193 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-06-05 20:04:00,887 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-06-05 20:04:02,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:02,616 INFO L93 Difference]: Finished difference Result 6311 states and 16401 transitions. [2021-06-05 20:04:02,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-05 20:04:02,616 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:04:02,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:02,622 INFO L225 Difference]: With dead ends: 6311 [2021-06-05 20:04:02,622 INFO L226 Difference]: Without dead ends: 6008 [2021-06-05 20:04:02,622 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1125 ImplicationChecksByTransitivity, 3808.3ms TimeCoverageRelationStatistics Valid=846, Invalid=4124, Unknown=0, NotChecked=0, Total=4970 [2021-06-05 20:04:02,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2021-06-05 20:04:02,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 5591. [2021-06-05 20:04:02,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5591 states, 5590 states have (on average 2.662075134168157) internal successors, (14881), 5590 states have internal predecessors, (14881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:02,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 14881 transitions. [2021-06-05 20:04:02,725 INFO L78 Accepts]: Start accepts. Automaton has 5591 states and 14881 transitions. Word has length 119 [2021-06-05 20:04:02,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:02,725 INFO L482 AbstractCegarLoop]: Abstraction has 5591 states and 14881 transitions. [2021-06-05 20:04:02,725 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:02,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5591 states and 14881 transitions. [2021-06-05 20:04:02,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:04:02,730 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:02,730 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:04:02,730 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-05 20:04:02,730 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:02,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:02,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1625630175, now seen corresponding path program 19 times [2021-06-05 20:04:02,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:02,731 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830078588] [2021-06-05 20:04:02,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:03,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:03,629 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:03,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830078588] [2021-06-05 20:04:03,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830078588] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:03,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:03,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:04:03,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287219474] [2021-06-05 20:04:03,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:04:03,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:03,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:04:03,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:04:03,630 INFO L87 Difference]: Start difference. First operand 5591 states and 14881 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:06,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:06,659 INFO L93 Difference]: Finished difference Result 6234 states and 16220 transitions. [2021-06-05 20:04:06,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:04:06,660 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:04:06,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:06,664 INFO L225 Difference]: With dead ends: 6234 [2021-06-05 20:04:06,664 INFO L226 Difference]: Without dead ends: 5814 [2021-06-05 20:04:06,664 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 2775.0ms TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:04:06,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5814 states. [2021-06-05 20:04:06,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5814 to 5499. [2021-06-05 20:04:06,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 2.6655147326300472) internal successors, (14655), 5498 states have internal predecessors, (14655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:06,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 14655 transitions. [2021-06-05 20:04:06,730 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 14655 transitions. Word has length 119 [2021-06-05 20:04:06,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:06,730 INFO L482 AbstractCegarLoop]: Abstraction has 5499 states and 14655 transitions. [2021-06-05 20:04:06,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:06,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 14655 transitions. [2021-06-05 20:04:06,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:04:06,735 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:06,735 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:04:06,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-05 20:04:06,735 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:06,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:06,736 INFO L82 PathProgramCache]: Analyzing trace with hash 794997137, now seen corresponding path program 20 times [2021-06-05 20:04:06,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:06,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855096652] [2021-06-05 20:04:06,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:07,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:07,543 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:07,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855096652] [2021-06-05 20:04:07,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855096652] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:07,543 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:07,544 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:04:07,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947415284] [2021-06-05 20:04:07,544 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:04:07,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:07,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:04:07,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:04:07,544 INFO L87 Difference]: Start difference. First operand 5499 states and 14655 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:10,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:10,163 INFO L93 Difference]: Finished difference Result 6628 states and 17443 transitions. [2021-06-05 20:04:10,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 20:04:10,163 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:04:10,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:10,169 INFO L225 Difference]: With dead ends: 6628 [2021-06-05 20:04:10,169 INFO L226 Difference]: Without dead ends: 6419 [2021-06-05 20:04:10,169 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 2374.4ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:04:10,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6419 states. [2021-06-05 20:04:10,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6419 to 5835. [2021-06-05 20:04:10,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5835 states, 5834 states have (on average 2.655296537538567) internal successors, (15491), 5834 states have internal predecessors, (15491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:10,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 15491 transitions. [2021-06-05 20:04:10,246 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 15491 transitions. Word has length 119 [2021-06-05 20:04:10,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:10,247 INFO L482 AbstractCegarLoop]: Abstraction has 5835 states and 15491 transitions. [2021-06-05 20:04:10,247 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:10,247 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 15491 transitions. [2021-06-05 20:04:10,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:04:10,252 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:10,252 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:04:10,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-06-05 20:04:10,252 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:10,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:10,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1798844335, now seen corresponding path program 21 times [2021-06-05 20:04:10,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:10,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569772390] [2021-06-05 20:04:10,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:10,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:10,964 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:10,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569772390] [2021-06-05 20:04:10,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569772390] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:10,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:10,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-05 20:04:10,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719352263] [2021-06-05 20:04:10,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-05 20:04:10,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:10,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-05 20:04:10,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:04:10,966 INFO L87 Difference]: Start difference. First operand 5835 states and 15491 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:12,225 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2021-06-05 20:04:13,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:13,791 INFO L93 Difference]: Finished difference Result 6975 states and 18261 transitions. [2021-06-05 20:04:13,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 20:04:13,791 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:04:13,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:13,798 INFO L225 Difference]: With dead ends: 6975 [2021-06-05 20:04:13,798 INFO L226 Difference]: Without dead ends: 6499 [2021-06-05 20:04:13,798 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 2473.1ms TimeCoverageRelationStatistics Valid=560, Invalid=2746, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 20:04:13,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6499 states. [2021-06-05 20:04:13,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6499 to 5907. [2021-06-05 20:04:13,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5907 states, 5906 states have (on average 2.643244158482899) internal successors, (15611), 5906 states have internal predecessors, (15611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:13,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 15611 transitions. [2021-06-05 20:04:13,872 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 15611 transitions. Word has length 119 [2021-06-05 20:04:13,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:13,872 INFO L482 AbstractCegarLoop]: Abstraction has 5907 states and 15611 transitions. [2021-06-05 20:04:13,872 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:13,872 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 15611 transitions. [2021-06-05 20:04:13,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:04:13,877 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:13,877 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:04:13,877 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-06-05 20:04:13,877 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:13,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:13,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1287697597, now seen corresponding path program 22 times [2021-06-05 20:04:13,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:13,878 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817229130] [2021-06-05 20:04:13,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:14,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:14,633 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:14,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817229130] [2021-06-05 20:04:14,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817229130] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:14,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:14,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-05 20:04:14,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135748175] [2021-06-05 20:04:14,634 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-05 20:04:14,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:14,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-05 20:04:14,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:04:14,634 INFO L87 Difference]: Start difference. First operand 5907 states and 15611 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:15,875 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2021-06-05 20:04:17,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:17,383 INFO L93 Difference]: Finished difference Result 6632 states and 17338 transitions. [2021-06-05 20:04:17,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:04:17,384 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:04:17,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:17,389 INFO L225 Difference]: With dead ends: 6632 [2021-06-05 20:04:17,389 INFO L226 Difference]: Without dead ends: 6091 [2021-06-05 20:04:17,390 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 2482.2ms TimeCoverageRelationStatistics Valid=552, Invalid=2870, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:04:17,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6091 states. [2021-06-05 20:04:17,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6091 to 5499. [2021-06-05 20:04:17,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 2.661149508912332) internal successors, (14631), 5498 states have internal predecessors, (14631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:17,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 14631 transitions. [2021-06-05 20:04:17,457 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 14631 transitions. Word has length 119 [2021-06-05 20:04:17,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:17,457 INFO L482 AbstractCegarLoop]: Abstraction has 5499 states and 14631 transitions. [2021-06-05 20:04:17,457 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:17,457 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 14631 transitions. [2021-06-05 20:04:17,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:04:17,462 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:17,462 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:04:17,462 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-05 20:04:17,462 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:17,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:17,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1892799201, now seen corresponding path program 23 times [2021-06-05 20:04:17,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:17,462 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711182461] [2021-06-05 20:04:17,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:18,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:18,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:18,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711182461] [2021-06-05 20:04:18,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711182461] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:18,219 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:18,219 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:04:18,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210658973] [2021-06-05 20:04:18,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:04:18,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:18,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:04:18,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:04:18,220 INFO L87 Difference]: Start difference. First operand 5499 states and 14631 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:19,829 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2021-06-05 20:04:20,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:20,823 INFO L93 Difference]: Finished difference Result 6138 states and 16176 transitions. [2021-06-05 20:04:20,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 20:04:20,823 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:04:20,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:20,829 INFO L225 Difference]: With dead ends: 6138 [2021-06-05 20:04:20,829 INFO L226 Difference]: Without dead ends: 5901 [2021-06-05 20:04:20,829 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 2396.9ms TimeCoverageRelationStatistics Valid=518, Invalid=2452, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:04:20,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5901 states. [2021-06-05 20:04:20,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5901 to 5475. [2021-06-05 20:04:20,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.664048227986847) internal successors, (14583), 5474 states have internal predecessors, (14583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:20,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14583 transitions. [2021-06-05 20:04:20,912 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14583 transitions. Word has length 119 [2021-06-05 20:04:20,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:20,912 INFO L482 AbstractCegarLoop]: Abstraction has 5475 states and 14583 transitions. [2021-06-05 20:04:20,912 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:20,912 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14583 transitions. [2021-06-05 20:04:20,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:04:20,916 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:20,916 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:04:20,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-06-05 20:04:20,916 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:20,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:20,917 INFO L82 PathProgramCache]: Analyzing trace with hash 899910573, now seen corresponding path program 24 times [2021-06-05 20:04:20,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:20,917 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585510870] [2021-06-05 20:04:20,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:21,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:21,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:21,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585510870] [2021-06-05 20:04:21,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585510870] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:21,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:21,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:04:21,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77263172] [2021-06-05 20:04:21,625 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:04:21,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:21,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:04:21,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:04:21,625 INFO L87 Difference]: Start difference. First operand 5475 states and 14583 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:24,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:24,169 INFO L93 Difference]: Finished difference Result 6818 states and 17919 transitions. [2021-06-05 20:04:24,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 20:04:24,169 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:04:24,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:24,175 INFO L225 Difference]: With dead ends: 6818 [2021-06-05 20:04:24,175 INFO L226 Difference]: Without dead ends: 6609 [2021-06-05 20:04:24,181 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 2228.1ms TimeCoverageRelationStatistics Valid=494, Invalid=2476, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:04:24,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6609 states. [2021-06-05 20:04:24,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6609 to 5931. [2021-06-05 20:04:24,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5931 states, 5930 states have (on average 2.6568296795952784) internal successors, (15755), 5930 states have internal predecessors, (15755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:24,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5931 states to 5931 states and 15755 transitions. [2021-06-05 20:04:24,251 INFO L78 Accepts]: Start accepts. Automaton has 5931 states and 15755 transitions. Word has length 119 [2021-06-05 20:04:24,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:24,251 INFO L482 AbstractCegarLoop]: Abstraction has 5931 states and 15755 transitions. [2021-06-05 20:04:24,251 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:24,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5931 states and 15755 transitions. [2021-06-05 20:04:24,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:04:24,256 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:24,256 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:04:24,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-06-05 20:04:24,256 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:24,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:24,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1903757771, now seen corresponding path program 25 times [2021-06-05 20:04:24,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:24,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530802515] [2021-06-05 20:04:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:24,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:24,991 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:24,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530802515] [2021-06-05 20:04:24,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530802515] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:24,991 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:24,991 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:04:24,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630527998] [2021-06-05 20:04:24,991 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:04:24,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:24,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:04:24,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:04:24,992 INFO L87 Difference]: Start difference. First operand 5931 states and 15755 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:26,686 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-06-05 20:04:27,177 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2021-06-05 20:04:28,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:28,414 INFO L93 Difference]: Finished difference Result 7165 states and 18737 transitions. [2021-06-05 20:04:28,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 20:04:28,415 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:04:28,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:28,423 INFO L225 Difference]: With dead ends: 7165 [2021-06-05 20:04:28,423 INFO L226 Difference]: Without dead ends: 6689 [2021-06-05 20:04:28,424 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 2722.6ms TimeCoverageRelationStatistics Valid=544, Invalid=2648, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 20:04:28,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6689 states. [2021-06-05 20:04:28,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6689 to 6003. [2021-06-05 20:04:28,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6003 states, 6002 states have (on average 2.644951682772409) internal successors, (15875), 6002 states have internal predecessors, (15875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:28,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6003 states to 6003 states and 15875 transitions. [2021-06-05 20:04:28,533 INFO L78 Accepts]: Start accepts. Automaton has 6003 states and 15875 transitions. Word has length 119 [2021-06-05 20:04:28,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:28,533 INFO L482 AbstractCegarLoop]: Abstraction has 6003 states and 15875 transitions. [2021-06-05 20:04:28,534 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:28,534 INFO L276 IsEmpty]: Start isEmpty. Operand 6003 states and 15875 transitions. [2021-06-05 20:04:28,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:04:28,551 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:28,551 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:04:28,551 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-06-05 20:04:28,551 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:28,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:28,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1182784161, now seen corresponding path program 26 times [2021-06-05 20:04:28,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:28,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942394262] [2021-06-05 20:04:28,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:29,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:29,416 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:29,416 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942394262] [2021-06-05 20:04:29,416 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942394262] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:29,416 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:29,416 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-05 20:04:29,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366924903] [2021-06-05 20:04:29,416 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-05 20:04:29,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:29,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-05 20:04:29,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:04:29,417 INFO L87 Difference]: Start difference. First operand 6003 states and 15875 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:30,880 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2021-06-05 20:04:31,304 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-06-05 20:04:32,120 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-06-05 20:04:33,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:33,143 INFO L93 Difference]: Finished difference Result 6822 states and 17814 transitions. [2021-06-05 20:04:33,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:04:33,143 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:04:33,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:33,150 INFO L225 Difference]: With dead ends: 6822 [2021-06-05 20:04:33,150 INFO L226 Difference]: Without dead ends: 6281 [2021-06-05 20:04:33,151 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 3067.9ms TimeCoverageRelationStatistics Valid=539, Invalid=2883, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:04:33,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6281 states. [2021-06-05 20:04:33,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 5595. [2021-06-05 20:04:33,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5595 states, 5594 states have (on average 2.645513049696103) internal successors, (14799), 5594 states have internal predecessors, (14799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:33,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 14799 transitions. [2021-06-05 20:04:33,245 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 14799 transitions. Word has length 119 [2021-06-05 20:04:33,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:33,246 INFO L482 AbstractCegarLoop]: Abstraction has 5595 states and 14799 transitions. [2021-06-05 20:04:33,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:33,246 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 14799 transitions. [2021-06-05 20:04:33,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:04:33,252 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:33,252 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:04:33,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-06-05 20:04:33,252 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:33,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:33,253 INFO L82 PathProgramCache]: Analyzing trace with hash -525852677, now seen corresponding path program 27 times [2021-06-05 20:04:33,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:33,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787952329] [2021-06-05 20:04:33,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:34,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:34,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:34,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787952329] [2021-06-05 20:04:34,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787952329] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:34,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:34,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:04:34,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089448541] [2021-06-05 20:04:34,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:04:34,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:34,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:04:34,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:04:34,153 INFO L87 Difference]: Start difference. First operand 5595 states and 14799 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:35,512 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-06-05 20:04:36,329 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 20:04:37,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:37,414 INFO L93 Difference]: Finished difference Result 6345 states and 16601 transitions. [2021-06-05 20:04:37,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 20:04:37,414 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:04:37,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:37,422 INFO L225 Difference]: With dead ends: 6345 [2021-06-05 20:04:37,422 INFO L226 Difference]: Without dead ends: 5991 [2021-06-05 20:04:37,423 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 2816.3ms TimeCoverageRelationStatistics Valid=494, Invalid=2476, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:04:37,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2021-06-05 20:04:37,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 5475. [2021-06-05 20:04:37,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6596638655462184) internal successors, (14559), 5474 states have internal predecessors, (14559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:37,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14559 transitions. [2021-06-05 20:04:37,516 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14559 transitions. Word has length 119 [2021-06-05 20:04:37,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:37,516 INFO L482 AbstractCegarLoop]: Abstraction has 5475 states and 14559 transitions. [2021-06-05 20:04:37,516 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:37,516 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14559 transitions. [2021-06-05 20:04:37,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:04:37,522 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:37,522 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:04:37,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-06-05 20:04:37,522 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:37,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:37,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1153180305, now seen corresponding path program 28 times [2021-06-05 20:04:37,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:37,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270821113] [2021-06-05 20:04:37,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:38,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:38,497 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:38,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270821113] [2021-06-05 20:04:38,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270821113] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:38,497 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:38,497 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:04:38,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728778325] [2021-06-05 20:04:38,497 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:04:38,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:38,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:04:38,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:04:38,498 INFO L87 Difference]: Start difference. First operand 5475 states and 14559 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:39,791 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-06-05 20:04:40,250 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2021-06-05 20:04:40,408 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2021-06-05 20:04:40,691 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-06-05 20:04:41,682 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-06-05 20:04:42,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:42,387 INFO L93 Difference]: Finished difference Result 6126 states and 16130 transitions. [2021-06-05 20:04:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 20:04:42,387 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:04:42,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:42,393 INFO L225 Difference]: With dead ends: 6126 [2021-06-05 20:04:42,394 INFO L226 Difference]: Without dead ends: 5913 [2021-06-05 20:04:42,394 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 3408.5ms TimeCoverageRelationStatistics Valid=518, Invalid=2452, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:04:42,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5913 states. [2021-06-05 20:04:42,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5913 to 5479. [2021-06-05 20:04:42,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6588170865279297) internal successors, (14565), 5478 states have internal predecessors, (14565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:42,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14565 transitions. [2021-06-05 20:04:42,465 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14565 transitions. Word has length 119 [2021-06-05 20:04:42,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:42,465 INFO L482 AbstractCegarLoop]: Abstraction has 5479 states and 14565 transitions. [2021-06-05 20:04:42,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:42,465 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14565 transitions. [2021-06-05 20:04:42,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:04:42,470 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:42,470 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:04:42,470 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-06-05 20:04:42,470 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:42,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:42,471 INFO L82 PathProgramCache]: Analyzing trace with hash -990711187, now seen corresponding path program 29 times [2021-06-05 20:04:42,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:42,471 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645731737] [2021-06-05 20:04:42,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:43,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:43,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:43,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645731737] [2021-06-05 20:04:43,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645731737] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:43,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:43,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 20:04:43,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934243386] [2021-06-05 20:04:43,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 20:04:43,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:43,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 20:04:43,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2021-06-05 20:04:43,460 INFO L87 Difference]: Start difference. First operand 5479 states and 14565 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:46,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:46,437 INFO L93 Difference]: Finished difference Result 6143 states and 16171 transitions. [2021-06-05 20:04:46,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:04:46,438 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:04:46,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:46,442 INFO L225 Difference]: With dead ends: 6143 [2021-06-05 20:04:46,442 INFO L226 Difference]: Without dead ends: 5881 [2021-06-05 20:04:46,443 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 2701.3ms TimeCoverageRelationStatistics Valid=580, Invalid=3080, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 20:04:46,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5881 states. [2021-06-05 20:04:46,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5881 to 5451. [2021-06-05 20:04:46,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6625688073394493) internal successors, (14511), 5450 states have internal predecessors, (14511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:46,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14511 transitions. [2021-06-05 20:04:46,506 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14511 transitions. Word has length 119 [2021-06-05 20:04:46,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:46,506 INFO L482 AbstractCegarLoop]: Abstraction has 5451 states and 14511 transitions. [2021-06-05 20:04:46,506 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:46,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14511 transitions. [2021-06-05 20:04:46,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:04:46,510 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:46,510 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:04:46,511 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-06-05 20:04:46,511 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:46,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:46,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1230990515, now seen corresponding path program 30 times [2021-06-05 20:04:46,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:46,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713594889] [2021-06-05 20:04:46,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:47,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:47,259 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:47,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713594889] [2021-06-05 20:04:47,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713594889] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:47,259 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:47,259 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:04:47,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120353231] [2021-06-05 20:04:47,259 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:04:47,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:47,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:04:47,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:04:47,259 INFO L87 Difference]: Start difference. First operand 5451 states and 14511 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:49,555 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 20:04:50,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:50,129 INFO L93 Difference]: Finished difference Result 7338 states and 19245 transitions. [2021-06-05 20:04:50,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 20:04:50,129 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:04:50,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:50,136 INFO L225 Difference]: With dead ends: 7338 [2021-06-05 20:04:50,136 INFO L226 Difference]: Without dead ends: 7129 [2021-06-05 20:04:50,136 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 2387.1ms TimeCoverageRelationStatistics Valid=491, Invalid=2479, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:04:50,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7129 states. [2021-06-05 20:04:50,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7129 to 5631. [2021-06-05 20:04:50,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5631 states, 5630 states have (on average 2.657726465364121) internal successors, (14963), 5630 states have internal predecessors, (14963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:50,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5631 states to 5631 states and 14963 transitions. [2021-06-05 20:04:50,213 INFO L78 Accepts]: Start accepts. Automaton has 5631 states and 14963 transitions. Word has length 119 [2021-06-05 20:04:50,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:50,213 INFO L482 AbstractCegarLoop]: Abstraction has 5631 states and 14963 transitions. [2021-06-05 20:04:50,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:50,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5631 states and 14963 transitions. [2021-06-05 20:04:50,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:04:50,218 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:50,218 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:04:50,218 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-06-05 20:04:50,218 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:50,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:50,218 INFO L82 PathProgramCache]: Analyzing trace with hash -2060129583, now seen corresponding path program 31 times [2021-06-05 20:04:50,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:50,218 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211813350] [2021-06-05 20:04:50,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:50,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:50,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211813350] [2021-06-05 20:04:50,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211813350] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:50,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:50,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-05 20:04:50,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777188356] [2021-06-05 20:04:50,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-05 20:04:50,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:50,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-05 20:04:50,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:04:50,959 INFO L87 Difference]: Start difference. First operand 5631 states and 14963 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:52,961 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-06-05 20:04:53,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:53,954 INFO L93 Difference]: Finished difference Result 7685 states and 20063 transitions. [2021-06-05 20:04:53,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 20:04:53,954 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:04:53,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:53,961 INFO L225 Difference]: With dead ends: 7685 [2021-06-05 20:04:53,961 INFO L226 Difference]: Without dead ends: 7209 [2021-06-05 20:04:53,962 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 2567.3ms TimeCoverageRelationStatistics Valid=540, Invalid=2766, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 20:04:53,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7209 states. [2021-06-05 20:04:54,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7209 to 5703. [2021-06-05 20:04:54,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5703 states, 5702 states have (on average 2.6452122062434236) internal successors, (15083), 5702 states have internal predecessors, (15083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:54,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5703 states to 5703 states and 15083 transitions. [2021-06-05 20:04:54,042 INFO L78 Accepts]: Start accepts. Automaton has 5703 states and 15083 transitions. Word has length 119 [2021-06-05 20:04:54,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:54,042 INFO L482 AbstractCegarLoop]: Abstraction has 5703 states and 15083 transitions. [2021-06-05 20:04:54,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:54,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5703 states and 15083 transitions. [2021-06-05 20:04:54,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:04:54,047 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:54,047 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:04:54,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-06-05 20:04:54,047 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:54,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:54,047 INFO L82 PathProgramCache]: Analyzing trace with hash -851704219, now seen corresponding path program 32 times [2021-06-05 20:04:54,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:54,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176262082] [2021-06-05 20:04:54,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:54,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:54,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:54,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176262082] [2021-06-05 20:04:54,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176262082] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:54,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:54,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-06-05 20:04:54,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390781375] [2021-06-05 20:04:54,850 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-05 20:04:54,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:54,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-05 20:04:54,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2021-06-05 20:04:54,851 INFO L87 Difference]: Start difference. First operand 5703 states and 15083 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:56,440 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-06-05 20:04:56,777 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-06-05 20:04:57,034 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2021-06-05 20:04:57,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:57,858 INFO L93 Difference]: Finished difference Result 7342 states and 19140 transitions. [2021-06-05 20:04:57,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 20:04:57,858 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:04:57,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:57,865 INFO L225 Difference]: With dead ends: 7342 [2021-06-05 20:04:57,865 INFO L226 Difference]: Without dead ends: 6801 [2021-06-05 20:04:57,865 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 2697.2ms TimeCoverageRelationStatistics Valid=544, Invalid=2878, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:04:57,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6801 states. [2021-06-05 20:04:57,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6801 to 5295. [2021-06-05 20:04:57,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.645825462788062) internal successors, (14007), 5294 states have internal predecessors, (14007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:57,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 14007 transitions. [2021-06-05 20:04:57,937 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 14007 transitions. Word has length 119 [2021-06-05 20:04:57,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:57,937 INFO L482 AbstractCegarLoop]: Abstraction has 5295 states and 14007 transitions. [2021-06-05 20:04:57,937 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:57,938 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 14007 transitions. [2021-06-05 20:04:57,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:04:57,942 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:57,942 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:04:57,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-06-05 20:04:57,942 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:57,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:57,942 INFO L82 PathProgramCache]: Analyzing trace with hash -194772735, now seen corresponding path program 33 times [2021-06-05 20:04:57,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:57,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977783609] [2021-06-05 20:04:57,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:58,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:58,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:58,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977783609] [2021-06-05 20:04:58,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977783609] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:58,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:58,777 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:04:58,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832971427] [2021-06-05 20:04:58,777 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:04:58,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:58,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:04:58,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:04:58,778 INFO L87 Difference]: Start difference. First operand 5295 states and 14007 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:01,003 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2021-06-05 20:05:01,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:01,618 INFO L93 Difference]: Finished difference Result 6938 states and 18089 transitions. [2021-06-05 20:05:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 20:05:01,618 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:05:01,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:01,623 INFO L225 Difference]: With dead ends: 6938 [2021-06-05 20:05:01,623 INFO L226 Difference]: Without dead ends: 6584 [2021-06-05 20:05:01,624 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 2481.4ms TimeCoverageRelationStatistics Valid=509, Invalid=2571, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 20:05:01,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6584 states. [2021-06-05 20:05:01,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6584 to 5175. [2021-06-05 20:05:01,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 2.642249710088906) internal successors, (13671), 5174 states have internal predecessors, (13671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:01,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 13671 transitions. [2021-06-05 20:05:01,694 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 13671 transitions. Word has length 119 [2021-06-05 20:05:01,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:01,694 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 13671 transitions. [2021-06-05 20:05:01,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:01,694 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 13671 transitions. [2021-06-05 20:05:01,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:05:01,698 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:01,699 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:05:01,699 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-06-05 20:05:01,699 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:05:01,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:01,699 INFO L82 PathProgramCache]: Analyzing trace with hash -761617071, now seen corresponding path program 34 times [2021-06-05 20:05:01,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:01,699 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574006456] [2021-06-05 20:05:01,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:02,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:02,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:02,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574006456] [2021-06-05 20:05:02,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574006456] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:02,514 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:02,514 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:05:02,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250728096] [2021-06-05 20:05:02,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:05:02,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:02,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:05:02,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:05:02,515 INFO L87 Difference]: Start difference. First operand 5175 states and 13671 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:04,293 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 20:05:04,705 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-06-05 20:05:05,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:05,704 INFO L93 Difference]: Finished difference Result 7067 states and 18258 transitions. [2021-06-05 20:05:05,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:05:05,705 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:05:05,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:05,711 INFO L225 Difference]: With dead ends: 7067 [2021-06-05 20:05:05,711 INFO L226 Difference]: Without dead ends: 6353 [2021-06-05 20:05:05,711 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 2743.6ms TimeCoverageRelationStatistics Valid=540, Invalid=2766, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 20:05:05,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6353 states. [2021-06-05 20:05:05,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6353 to 4770. [2021-06-05 20:05:05,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4770 states, 4769 states have (on average 2.6464667645208637) internal successors, (12621), 4769 states have internal predecessors, (12621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:05,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4770 states to 4770 states and 12621 transitions. [2021-06-05 20:05:05,788 INFO L78 Accepts]: Start accepts. Automaton has 4770 states and 12621 transitions. Word has length 119 [2021-06-05 20:05:05,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:05,788 INFO L482 AbstractCegarLoop]: Abstraction has 4770 states and 12621 transitions. [2021-06-05 20:05:05,788 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:05,788 INFO L276 IsEmpty]: Start isEmpty. Operand 4770 states and 12621 transitions. [2021-06-05 20:05:05,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:05:05,793 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:05,793 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:05:05,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-06-05 20:05:05,794 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:05:05,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:05,794 INFO L82 PathProgramCache]: Analyzing trace with hash 760875073, now seen corresponding path program 35 times [2021-06-05 20:05:05,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:05,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185984008] [2021-06-05 20:05:05,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:06,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:06,641 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:06,641 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185984008] [2021-06-05 20:05:06,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185984008] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:06,642 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:06,642 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:05:06,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677572125] [2021-06-05 20:05:06,642 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-05 20:05:06,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:06,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-05 20:05:06,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-06-05 20:05:06,642 INFO L87 Difference]: Start difference. First operand 4770 states and 12621 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:08,628 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-06-05 20:05:09,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:09,678 INFO L93 Difference]: Finished difference Result 5523 states and 14426 transitions. [2021-06-05 20:05:09,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 20:05:09,678 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:05:09,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:09,683 INFO L225 Difference]: With dead ends: 5523 [2021-06-05 20:05:09,683 INFO L226 Difference]: Without dead ends: 5310 [2021-06-05 20:05:09,684 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 2661.5ms TimeCoverageRelationStatistics Valid=510, Invalid=2352, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:05:09,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5310 states. [2021-06-05 20:05:09,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5310 to 4786. [2021-06-05 20:05:09,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4786 states, 4785 states have (on average 2.645141065830721) internal successors, (12657), 4785 states have internal predecessors, (12657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:09,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4786 states to 4786 states and 12657 transitions. [2021-06-05 20:05:09,744 INFO L78 Accepts]: Start accepts. Automaton has 4786 states and 12657 transitions. Word has length 119 [2021-06-05 20:05:09,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:09,745 INFO L482 AbstractCegarLoop]: Abstraction has 4786 states and 12657 transitions. [2021-06-05 20:05:09,745 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:09,745 INFO L276 IsEmpty]: Start isEmpty. Operand 4786 states and 12657 transitions. [2021-06-05 20:05:09,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:05:09,749 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:09,749 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:05:09,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-06-05 20:05:09,749 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:05:09,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:09,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1383016419, now seen corresponding path program 36 times [2021-06-05 20:05:09,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:09,750 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118307498] [2021-06-05 20:05:09,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:10,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:10,646 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:10,646 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118307498] [2021-06-05 20:05:10,646 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118307498] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:10,646 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:10,646 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:05:10,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737577700] [2021-06-05 20:05:10,646 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:05:10,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:10,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:05:10,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:05:10,647 INFO L87 Difference]: Start difference. First operand 4786 states and 12657 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:11,407 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2021-06-05 20:05:12,144 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2021-06-05 20:05:12,482 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 20:05:13,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:13,486 INFO L93 Difference]: Finished difference Result 5544 states and 14473 transitions. [2021-06-05 20:05:13,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 20:05:13,486 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:05:13,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:13,491 INFO L225 Difference]: With dead ends: 5544 [2021-06-05 20:05:13,492 INFO L226 Difference]: Without dead ends: 5306 [2021-06-05 20:05:13,492 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 2626.4ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:05:13,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5306 states. [2021-06-05 20:05:13,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5306 to 4782. [2021-06-05 20:05:13,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 4781 states have (on average 2.645262497385484) internal successors, (12647), 4781 states have internal predecessors, (12647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:13,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 12647 transitions. [2021-06-05 20:05:13,555 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 12647 transitions. Word has length 119 [2021-06-05 20:05:13,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:13,555 INFO L482 AbstractCegarLoop]: Abstraction has 4782 states and 12647 transitions. [2021-06-05 20:05:13,555 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:13,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 12647 transitions. [2021-06-05 20:05:13,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:05:13,559 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:13,559 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:05:13,559 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-06-05 20:05:13,559 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:05:13,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:13,560 INFO L82 PathProgramCache]: Analyzing trace with hash 704600065, now seen corresponding path program 37 times [2021-06-05 20:05:13,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:13,560 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046487974] [2021-06-05 20:05:13,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:14,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:14,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:14,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046487974] [2021-06-05 20:05:14,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046487974] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:14,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:14,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 20:05:14,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936803123] [2021-06-05 20:05:14,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 20:05:14,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:14,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 20:05:14,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2021-06-05 20:05:14,604 INFO L87 Difference]: Start difference. First operand 4782 states and 12647 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:15,795 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2021-06-05 20:05:16,769 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-06-05 20:05:17,656 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2021-06-05 20:05:18,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:18,518 INFO L93 Difference]: Finished difference Result 5863 states and 15134 transitions. [2021-06-05 20:05:18,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-05 20:05:18,519 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:05:18,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:18,523 INFO L225 Difference]: With dead ends: 5863 [2021-06-05 20:05:18,523 INFO L226 Difference]: Without dead ends: 5461 [2021-06-05 20:05:18,523 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 3484.8ms TimeCoverageRelationStatistics Valid=733, Invalid=3823, Unknown=0, NotChecked=0, Total=4556 [2021-06-05 20:05:18,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5461 states. [2021-06-05 20:05:18,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5461 to 4689. [2021-06-05 20:05:18,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 4688 states have (on average 2.6473976109215016) internal successors, (12411), 4688 states have internal predecessors, (12411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:18,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 12411 transitions. [2021-06-05 20:05:18,575 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 12411 transitions. Word has length 119 [2021-06-05 20:05:18,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:18,575 INFO L482 AbstractCegarLoop]: Abstraction has 4689 states and 12411 transitions. [2021-06-05 20:05:18,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:18,576 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 12411 transitions. [2021-06-05 20:05:18,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:05:18,579 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:18,579 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:05:18,579 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-06-05 20:05:18,579 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:05:18,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:18,580 INFO L82 PathProgramCache]: Analyzing trace with hash -150142703, now seen corresponding path program 38 times [2021-06-05 20:05:18,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:18,580 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085752510] [2021-06-05 20:05:18,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:19,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:19,414 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:19,414 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085752510] [2021-06-05 20:05:19,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085752510] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:19,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:19,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:05:19,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344173250] [2021-06-05 20:05:19,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:05:19,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:19,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:05:19,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:05:19,415 INFO L87 Difference]: Start difference. First operand 4689 states and 12411 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:20,679 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2021-06-05 20:05:20,879 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-06-05 20:05:22,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:22,339 INFO L93 Difference]: Finished difference Result 5411 states and 13961 transitions. [2021-06-05 20:05:22,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:05:22,339 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:05:22,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:22,343 INFO L225 Difference]: With dead ends: 5411 [2021-06-05 20:05:22,343 INFO L226 Difference]: Without dead ends: 5096 [2021-06-05 20:05:22,343 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 2614.7ms TimeCoverageRelationStatistics Valid=593, Invalid=2713, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 20:05:22,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5096 states. [2021-06-05 20:05:22,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5096 to 4689. [2021-06-05 20:05:22,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 4688 states have (on average 2.646117747440273) internal successors, (12405), 4688 states have internal predecessors, (12405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:22,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 12405 transitions. [2021-06-05 20:05:22,394 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 12405 transitions. Word has length 119 [2021-06-05 20:05:22,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:22,394 INFO L482 AbstractCegarLoop]: Abstraction has 4689 states and 12405 transitions. [2021-06-05 20:05:22,394 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:22,394 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 12405 transitions. [2021-06-05 20:05:22,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:05:22,398 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:22,398 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:05:22,398 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-06-05 20:05:22,398 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:05:22,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:22,401 INFO L82 PathProgramCache]: Analyzing trace with hash 369218067, now seen corresponding path program 39 times [2021-06-05 20:05:22,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:22,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311515838] [2021-06-05 20:05:22,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:23,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:23,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:23,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311515838] [2021-06-05 20:05:23,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311515838] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:23,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:23,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:05:23,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063369114] [2021-06-05 20:05:23,184 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:05:23,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:23,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:05:23,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:05:23,185 INFO L87 Difference]: Start difference. First operand 4689 states and 12405 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:24,246 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2021-06-05 20:05:24,567 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-06-05 20:05:26,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:26,083 INFO L93 Difference]: Finished difference Result 5447 states and 14018 transitions. [2021-06-05 20:05:26,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:05:26,083 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:05:26,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:26,087 INFO L225 Difference]: With dead ends: 5447 [2021-06-05 20:05:26,087 INFO L226 Difference]: Without dead ends: 5144 [2021-06-05 20:05:26,088 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 2656.5ms TimeCoverageRelationStatistics Valid=620, Invalid=2802, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:05:26,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5144 states. [2021-06-05 20:05:26,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5144 to 4687. [2021-06-05 20:05:26,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4687 states, 4686 states have (on average 2.6453265044814342) internal successors, (12396), 4686 states have internal predecessors, (12396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:26,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4687 states to 4687 states and 12396 transitions. [2021-06-05 20:05:26,140 INFO L78 Accepts]: Start accepts. Automaton has 4687 states and 12396 transitions. Word has length 119 [2021-06-05 20:05:26,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:26,141 INFO L482 AbstractCegarLoop]: Abstraction has 4687 states and 12396 transitions. [2021-06-05 20:05:26,141 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:26,141 INFO L276 IsEmpty]: Start isEmpty. Operand 4687 states and 12396 transitions. [2021-06-05 20:05:26,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:05:26,144 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:26,144 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:05:26,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-06-05 20:05:26,144 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:05:26,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:26,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1945897425, now seen corresponding path program 40 times [2021-06-05 20:05:26,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:26,145 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429184499] [2021-06-05 20:05:26,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:27,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:27,078 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:27,078 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429184499] [2021-06-05 20:05:27,078 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429184499] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:27,078 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:27,078 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 20:05:27,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743461219] [2021-06-05 20:05:27,078 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 20:05:27,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:27,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 20:05:27,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2021-06-05 20:05:27,078 INFO L87 Difference]: Start difference. First operand 4687 states and 12396 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:30,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:30,718 INFO L93 Difference]: Finished difference Result 5360 states and 13812 transitions. [2021-06-05 20:05:30,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-06-05 20:05:30,718 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:05:30,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:30,723 INFO L225 Difference]: With dead ends: 5360 [2021-06-05 20:05:30,723 INFO L226 Difference]: Without dead ends: 5012 [2021-06-05 20:05:30,723 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 937 ImplicationChecksByTransitivity, 3271.1ms TimeCoverageRelationStatistics Valid=773, Invalid=3783, Unknown=0, NotChecked=0, Total=4556 [2021-06-05 20:05:30,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5012 states. [2021-06-05 20:05:30,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5012 to 4631. [2021-06-05 20:05:30,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4631 states, 4630 states have (on average 2.647948164146868) internal successors, (12260), 4630 states have internal predecessors, (12260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:30,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4631 states to 4631 states and 12260 transitions. [2021-06-05 20:05:30,777 INFO L78 Accepts]: Start accepts. Automaton has 4631 states and 12260 transitions. Word has length 119 [2021-06-05 20:05:30,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:30,777 INFO L482 AbstractCegarLoop]: Abstraction has 4631 states and 12260 transitions. [2021-06-05 20:05:30,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:30,777 INFO L276 IsEmpty]: Start isEmpty. Operand 4631 states and 12260 transitions. [2021-06-05 20:05:30,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:05:30,781 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:30,781 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:05:30,781 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-06-05 20:05:30,781 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:05:30,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:30,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1723443951, now seen corresponding path program 41 times [2021-06-05 20:05:30,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:30,781 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298171832] [2021-06-05 20:05:30,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:31,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:31,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:31,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298171832] [2021-06-05 20:05:31,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298171832] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:31,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:31,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 20:05:31,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521105673] [2021-06-05 20:05:31,558 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 20:05:31,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:31,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 20:05:31,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 20:05:31,559 INFO L87 Difference]: Start difference. First operand 4631 states and 12260 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:32,230 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-06-05 20:05:33,261 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2021-06-05 20:05:33,530 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 60 [2021-06-05 20:05:33,713 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-06-05 20:05:33,995 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 20:05:34,125 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-06-05 20:05:35,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:35,137 INFO L93 Difference]: Finished difference Result 4998 states and 13025 transitions. [2021-06-05 20:05:35,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:05:35,138 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:05:35,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:35,141 INFO L225 Difference]: With dead ends: 4998 [2021-06-05 20:05:35,141 INFO L226 Difference]: Without dead ends: 4785 [2021-06-05 20:05:35,141 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 3091.7ms TimeCoverageRelationStatistics Valid=493, Invalid=2369, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:05:35,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2021-06-05 20:05:35,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 4637. [2021-06-05 20:05:35,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4637 states, 4636 states have (on average 2.64732528041415) internal successors, (12273), 4636 states have internal predecessors, (12273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:35,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 12273 transitions. [2021-06-05 20:05:35,193 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 12273 transitions. Word has length 119 [2021-06-05 20:05:35,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:35,193 INFO L482 AbstractCegarLoop]: Abstraction has 4637 states and 12273 transitions. [2021-06-05 20:05:35,193 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:35,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 12273 transitions. [2021-06-05 20:05:35,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:05:35,197 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:35,197 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:05:35,197 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-06-05 20:05:35,198 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:05:35,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:35,198 INFO L82 PathProgramCache]: Analyzing trace with hash 256407853, now seen corresponding path program 42 times [2021-06-05 20:05:35,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:35,198 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051677011] [2021-06-05 20:05:35,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:36,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:36,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:36,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051677011] [2021-06-05 20:05:36,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051677011] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:36,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:36,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 20:05:36,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99551468] [2021-06-05 20:05:36,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 20:05:36,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:36,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 20:05:36,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2021-06-05 20:05:36,366 INFO L87 Difference]: Start difference. First operand 4637 states and 12273 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:37,771 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2021-06-05 20:05:38,364 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2021-06-05 20:05:38,793 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2021-06-05 20:05:40,170 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-06-05 20:05:40,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:40,183 INFO L93 Difference]: Finished difference Result 5019 states and 13072 transitions. [2021-06-05 20:05:40,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:05:40,184 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:05:40,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:40,189 INFO L225 Difference]: With dead ends: 5019 [2021-06-05 20:05:40,189 INFO L226 Difference]: Without dead ends: 4781 [2021-06-05 20:05:40,189 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 3769.9ms TimeCoverageRelationStatistics Valid=585, Invalid=3075, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 20:05:40,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4781 states. [2021-06-05 20:05:40,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4781 to 4633. [2021-06-05 20:05:40,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4633 states, 4632 states have (on average 2.6474525043177892) internal successors, (12263), 4632 states have internal predecessors, (12263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:40,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4633 states to 4633 states and 12263 transitions. [2021-06-05 20:05:40,260 INFO L78 Accepts]: Start accepts. Automaton has 4633 states and 12263 transitions. Word has length 119 [2021-06-05 20:05:40,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:40,260 INFO L482 AbstractCegarLoop]: Abstraction has 4633 states and 12263 transitions. [2021-06-05 20:05:40,260 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:40,260 INFO L276 IsEmpty]: Start isEmpty. Operand 4633 states and 12263 transitions. [2021-06-05 20:05:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:05:40,265 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:40,266 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:05:40,266 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-06-05 20:05:40,266 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:05:40,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:40,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1053215949, now seen corresponding path program 43 times [2021-06-05 20:05:40,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:40,267 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392343379] [2021-06-05 20:05:40,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:41,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:41,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:41,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392343379] [2021-06-05 20:05:41,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392343379] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:41,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:41,452 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-06-05 20:05:41,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633860611] [2021-06-05 20:05:41,452 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-05 20:05:41,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:41,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-05 20:05:41,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2021-06-05 20:05:41,453 INFO L87 Difference]: Start difference. First operand 4633 states and 12263 transitions. Second operand has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:42,922 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2021-06-05 20:05:43,058 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2021-06-05 20:05:43,456 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2021-06-05 20:05:44,754 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2021-06-05 20:05:45,022 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-06-05 20:05:45,408 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2021-06-05 20:05:46,704 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2021-06-05 20:05:46,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:46,780 INFO L93 Difference]: Finished difference Result 5266 states and 13563 transitions. [2021-06-05 20:05:46,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-05 20:05:46,781 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:05:46,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:46,786 INFO L225 Difference]: With dead ends: 5266 [2021-06-05 20:05:46,786 INFO L226 Difference]: Without dead ends: 4666 [2021-06-05 20:05:46,787 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1031 ImplicationChecksByTransitivity, 4526.8ms TimeCoverageRelationStatistics Valid=741, Invalid=3815, Unknown=0, NotChecked=0, Total=4556 [2021-06-05 20:05:46,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2021-06-05 20:05:46,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 4274. [2021-06-05 20:05:46,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4274 states, 4273 states have (on average 2.658319681722443) internal successors, (11359), 4273 states have internal predecessors, (11359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:46,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4274 states to 4274 states and 11359 transitions. [2021-06-05 20:05:46,856 INFO L78 Accepts]: Start accepts. Automaton has 4274 states and 11359 transitions. Word has length 119 [2021-06-05 20:05:46,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:46,856 INFO L482 AbstractCegarLoop]: Abstraction has 4274 states and 11359 transitions. [2021-06-05 20:05:46,856 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 3.838709677419355) internal successors, (119), 31 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:46,857 INFO L276 IsEmpty]: Start isEmpty. Operand 4274 states and 11359 transitions. [2021-06-05 20:05:46,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:05:46,861 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:46,861 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:05:46,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-06-05 20:05:46,862 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:05:46,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:46,862 INFO L82 PathProgramCache]: Analyzing trace with hash -944109087, now seen corresponding path program 44 times [2021-06-05 20:05:46,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:46,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730217813] [2021-06-05 20:05:46,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:47,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:47,198 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:47,198 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730217813] [2021-06-05 20:05:47,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730217813] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:47,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:47,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 20:05:47,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791771451] [2021-06-05 20:05:47,201 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 20:05:47,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:47,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 20:05:47,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:05:47,201 INFO L87 Difference]: Start difference. First operand 4274 states and 11359 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:47,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:47,925 INFO L93 Difference]: Finished difference Result 5995 states and 15628 transitions. [2021-06-05 20:05:47,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 20:05:47,925 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:05:47,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:47,931 INFO L225 Difference]: With dead ends: 5995 [2021-06-05 20:05:47,931 INFO L226 Difference]: Without dead ends: 5771 [2021-06-05 20:05:47,931 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 608.9ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-06-05 20:05:47,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5771 states. [2021-06-05 20:05:47,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5771 to 4164. [2021-06-05 20:05:47,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4164 states, 4163 states have (on average 2.6509728561133796) internal successors, (11036), 4163 states have internal predecessors, (11036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:48,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4164 states to 4164 states and 11036 transitions. [2021-06-05 20:05:48,001 INFO L78 Accepts]: Start accepts. Automaton has 4164 states and 11036 transitions. Word has length 119 [2021-06-05 20:05:48,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:48,001 INFO L482 AbstractCegarLoop]: Abstraction has 4164 states and 11036 transitions. [2021-06-05 20:05:48,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:48,001 INFO L276 IsEmpty]: Start isEmpty. Operand 4164 states and 11036 transitions. [2021-06-05 20:05:48,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:05:48,005 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:48,005 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:05:48,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-06-05 20:05:48,006 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:05:48,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:48,006 INFO L82 PathProgramCache]: Analyzing trace with hash -673731233, now seen corresponding path program 45 times [2021-06-05 20:05:48,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:48,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880787978] [2021-06-05 20:05:48,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:48,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:48,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:48,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880787978] [2021-06-05 20:05:48,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880787978] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:48,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:48,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 20:05:48,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950723782] [2021-06-05 20:05:48,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 20:05:48,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:48,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 20:05:48,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:05:48,363 INFO L87 Difference]: Start difference. First operand 4164 states and 11036 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:49,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:49,131 INFO L93 Difference]: Finished difference Result 4103 states and 10314 transitions. [2021-06-05 20:05:49,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 20:05:49,131 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:05:49,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:49,136 INFO L225 Difference]: With dead ends: 4103 [2021-06-05 20:05:49,136 INFO L226 Difference]: Without dead ends: 3991 [2021-06-05 20:05:49,136 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 631.0ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-06-05 20:05:49,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3991 states. [2021-06-05 20:05:49,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3991 to 3382. [2021-06-05 20:05:49,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3381 states have (on average 2.5732031943212066) internal successors, (8700), 3381 states have internal predecessors, (8700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:49,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 8700 transitions. [2021-06-05 20:05:49,189 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 8700 transitions. Word has length 119 [2021-06-05 20:05:49,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:49,189 INFO L482 AbstractCegarLoop]: Abstraction has 3382 states and 8700 transitions. [2021-06-05 20:05:49,189 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:49,189 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 8700 transitions. [2021-06-05 20:05:49,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:05:49,193 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:49,193 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:05:49,194 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-06-05 20:05:49,194 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:05:49,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:49,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1815971037, now seen corresponding path program 46 times [2021-06-05 20:05:49,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:49,195 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661037965] [2021-06-05 20:05:49,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:50,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:50,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:50,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661037965] [2021-06-05 20:05:50,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661037965] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:50,109 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:50,109 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:05:50,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915437985] [2021-06-05 20:05:50,110 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:05:50,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:50,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:05:50,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:05:50,110 INFO L87 Difference]: Start difference. First operand 3382 states and 8700 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:51,143 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-06-05 20:05:51,385 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 20:05:51,826 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-06-05 20:05:52,070 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-06-05 20:05:53,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:53,283 INFO L93 Difference]: Finished difference Result 3615 states and 9136 transitions. [2021-06-05 20:05:53,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:05:53,284 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:05:53,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:53,288 INFO L225 Difference]: With dead ends: 3615 [2021-06-05 20:05:53,288 INFO L226 Difference]: Without dead ends: 3386 [2021-06-05 20:05:53,289 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 2745.4ms TimeCoverageRelationStatistics Valid=442, Invalid=2210, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:05:53,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-06-05 20:05:53,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3382. [2021-06-05 20:05:53,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3381 states have (on average 2.5708370304643595) internal successors, (8692), 3381 states have internal predecessors, (8692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:53,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 8692 transitions. [2021-06-05 20:05:53,342 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 8692 transitions. Word has length 119 [2021-06-05 20:05:53,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:53,342 INFO L482 AbstractCegarLoop]: Abstraction has 3382 states and 8692 transitions. [2021-06-05 20:05:53,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:53,343 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 8692 transitions. [2021-06-05 20:05:53,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:05:53,347 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:53,348 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:05:53,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-06-05 20:05:53,349 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:05:53,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:53,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1820389177, now seen corresponding path program 47 times [2021-06-05 20:05:53,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:53,350 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734209014] [2021-06-05 20:05:53,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:54,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:54,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:54,193 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734209014] [2021-06-05 20:05:54,193 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734209014] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:54,193 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:54,193 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:05:54,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042021765] [2021-06-05 20:05:54,194 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:05:54,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:54,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:05:54,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:05:54,194 INFO L87 Difference]: Start difference. First operand 3382 states and 8692 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:55,010 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2021-06-05 20:05:55,231 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-06-05 20:05:55,477 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 20:05:55,760 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 20:05:56,715 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-06-05 20:05:57,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:57,478 INFO L93 Difference]: Finished difference Result 3823 states and 9688 transitions. [2021-06-05 20:05:57,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 20:05:57,478 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:05:57,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:57,482 INFO L225 Difference]: With dead ends: 3823 [2021-06-05 20:05:57,482 INFO L226 Difference]: Without dead ends: 3614 [2021-06-05 20:05:57,483 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 2847.0ms TimeCoverageRelationStatistics Valid=447, Invalid=2309, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 20:05:57,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2021-06-05 20:05:57,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 3526. [2021-06-05 20:05:57,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 3525 states have (on average 2.566808510638298) internal successors, (9048), 3525 states have internal predecessors, (9048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:57,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 9048 transitions. [2021-06-05 20:05:57,536 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 9048 transitions. Word has length 119 [2021-06-05 20:05:57,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:57,537 INFO L482 AbstractCegarLoop]: Abstraction has 3526 states and 9048 transitions. [2021-06-05 20:05:57,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:57,537 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 9048 transitions. [2021-06-05 20:05:57,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:05:57,541 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:57,541 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:05:57,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-06-05 20:05:57,541 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:05:57,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:57,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1999871817, now seen corresponding path program 48 times [2021-06-05 20:05:57,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:57,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971023944] [2021-06-05 20:05:57,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:58,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:58,380 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:58,380 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971023944] [2021-06-05 20:05:58,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971023944] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:58,380 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:58,380 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:05:58,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701204478] [2021-06-05 20:05:58,380 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:05:58,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:58,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:05:58,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:05:58,381 INFO L87 Difference]: Start difference. First operand 3526 states and 9048 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:59,391 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-06-05 20:05:59,645 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 20:05:59,936 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 20:06:01,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:01,908 INFO L93 Difference]: Finished difference Result 4065 states and 10202 transitions. [2021-06-05 20:06:01,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 20:06:01,908 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:06:01,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:01,912 INFO L225 Difference]: With dead ends: 4065 [2021-06-05 20:06:01,912 INFO L226 Difference]: Without dead ends: 3076 [2021-06-05 20:06:01,912 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 3046.0ms TimeCoverageRelationStatistics Valid=514, Invalid=2678, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 20:06:01,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3076 states. [2021-06-05 20:06:01,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3076 to 2974. [2021-06-05 20:06:01,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 2973 states have (on average 2.572485704675412) internal successors, (7648), 2973 states have internal predecessors, (7648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:01,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 7648 transitions. [2021-06-05 20:06:01,953 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 7648 transitions. Word has length 119 [2021-06-05 20:06:01,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:01,954 INFO L482 AbstractCegarLoop]: Abstraction has 2974 states and 7648 transitions. [2021-06-05 20:06:01,954 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:01,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 7648 transitions. [2021-06-05 20:06:01,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:06:01,956 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:01,957 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:06:01,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-06-05 20:06:01,957 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:06:01,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:01,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1555807155, now seen corresponding path program 49 times [2021-06-05 20:06:01,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:01,957 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935803581] [2021-06-05 20:06:01,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:01,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:02,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:02,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:02,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935803581] [2021-06-05 20:06:02,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935803581] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:02,797 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:02,797 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:06:02,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550260425] [2021-06-05 20:06:02,797 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:06:02,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:02,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:06:02,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:06:02,798 INFO L87 Difference]: Start difference. First operand 2974 states and 7648 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:03,800 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-06-05 20:06:04,002 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 20:06:04,234 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 20:06:04,602 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-06-05 20:06:06,261 WARN L205 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-06-05 20:06:06,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:06,384 INFO L93 Difference]: Finished difference Result 3187 states and 8054 transitions. [2021-06-05 20:06:06,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 20:06:06,385 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:06:06,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:06,388 INFO L225 Difference]: With dead ends: 3187 [2021-06-05 20:06:06,388 INFO L226 Difference]: Without dead ends: 2854 [2021-06-05 20:06:06,388 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 3292.7ms TimeCoverageRelationStatistics Valid=459, Invalid=2297, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 20:06:06,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2021-06-05 20:06:06,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 2854. [2021-06-05 20:06:06,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2854 states, 2853 states have (on average 2.5993690851735014) internal successors, (7416), 2853 states have internal predecessors, (7416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:06,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2854 states to 2854 states and 7416 transitions. [2021-06-05 20:06:06,429 INFO L78 Accepts]: Start accepts. Automaton has 2854 states and 7416 transitions. Word has length 119 [2021-06-05 20:06:06,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:06,429 INFO L482 AbstractCegarLoop]: Abstraction has 2854 states and 7416 transitions. [2021-06-05 20:06:06,429 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:06,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2854 states and 7416 transitions. [2021-06-05 20:06:06,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:06:06,432 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:06,432 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:06:06,432 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-06-05 20:06:06,432 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:06:06,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:06,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1016585131, now seen corresponding path program 50 times [2021-06-05 20:06:06,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:06,433 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801973961] [2021-06-05 20:06:06,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:07,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:07,434 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:07,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801973961] [2021-06-05 20:06:07,434 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801973961] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:07,434 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:07,434 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:06:07,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10119497] [2021-06-05 20:06:07,434 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:06:07,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:07,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:06:07,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:06:07,435 INFO L87 Difference]: Start difference. First operand 2854 states and 7416 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:08,433 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2021-06-05 20:06:08,986 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:06:09,198 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-06-05 20:06:10,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:10,323 INFO L93 Difference]: Finished difference Result 3087 states and 7852 transitions. [2021-06-05 20:06:10,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:06:10,324 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:06:10,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:10,327 INFO L225 Difference]: With dead ends: 3087 [2021-06-05 20:06:10,327 INFO L226 Difference]: Without dead ends: 2830 [2021-06-05 20:06:10,327 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 2693.5ms TimeCoverageRelationStatistics Valid=445, Invalid=2207, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:06:10,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2021-06-05 20:06:10,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2830. [2021-06-05 20:06:10,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2830 states, 2829 states have (on average 2.6044538706256626) internal successors, (7368), 2829 states have internal predecessors, (7368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:10,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2830 states to 2830 states and 7368 transitions. [2021-06-05 20:06:10,369 INFO L78 Accepts]: Start accepts. Automaton has 2830 states and 7368 transitions. Word has length 119 [2021-06-05 20:06:10,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:10,369 INFO L482 AbstractCegarLoop]: Abstraction has 2830 states and 7368 transitions. [2021-06-05 20:06:10,369 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:10,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2830 states and 7368 transitions. [2021-06-05 20:06:10,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:06:10,372 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:10,372 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:06:10,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-06-05 20:06:10,372 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:06:10,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:10,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1170492923, now seen corresponding path program 51 times [2021-06-05 20:06:10,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:10,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004501442] [2021-06-05 20:06:10,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:11,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:11,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:11,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004501442] [2021-06-05 20:06:11,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004501442] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:11,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:11,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:06:11,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862572924] [2021-06-05 20:06:11,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:06:11,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:11,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:06:11,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:06:11,153 INFO L87 Difference]: Start difference. First operand 2830 states and 7368 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:12,684 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:06:12,871 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-06-05 20:06:13,771 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-06-05 20:06:14,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:14,110 INFO L93 Difference]: Finished difference Result 3023 states and 7747 transitions. [2021-06-05 20:06:14,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:06:14,111 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:06:14,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:14,113 INFO L225 Difference]: With dead ends: 3023 [2021-06-05 20:06:14,114 INFO L226 Difference]: Without dead ends: 2697 [2021-06-05 20:06:14,114 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 2619.0ms TimeCoverageRelationStatistics Valid=445, Invalid=2207, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:06:14,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2021-06-05 20:06:14,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 2657. [2021-06-05 20:06:14,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2657 states, 2656 states have (on average 2.6438253012048194) internal successors, (7022), 2656 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:14,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 7022 transitions. [2021-06-05 20:06:14,151 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 7022 transitions. Word has length 119 [2021-06-05 20:06:14,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:14,151 INFO L482 AbstractCegarLoop]: Abstraction has 2657 states and 7022 transitions. [2021-06-05 20:06:14,152 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:14,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 7022 transitions. [2021-06-05 20:06:14,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:06:14,154 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:14,154 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:06:14,154 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-06-05 20:06:14,154 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:06:14,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:14,155 INFO L82 PathProgramCache]: Analyzing trace with hash 611780271, now seen corresponding path program 52 times [2021-06-05 20:06:14,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:14,155 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116016233] [2021-06-05 20:06:14,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:14,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:14,429 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:14,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116016233] [2021-06-05 20:06:14,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116016233] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:14,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:14,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 20:06:14,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427139876] [2021-06-05 20:06:14,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 20:06:14,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:14,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 20:06:14,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-05 20:06:14,431 INFO L87 Difference]: Start difference. First operand 2657 states and 7022 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:14,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:14,842 INFO L93 Difference]: Finished difference Result 5076 states and 13227 transitions. [2021-06-05 20:06:14,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 20:06:14,842 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:06:14,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:14,847 INFO L225 Difference]: With dead ends: 5076 [2021-06-05 20:06:14,848 INFO L226 Difference]: Without dead ends: 5076 [2021-06-05 20:06:14,848 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 393.4ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:06:14,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5076 states. [2021-06-05 20:06:14,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5076 to 2829. [2021-06-05 20:06:14,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2829 states, 2828 states have (on average 2.639321074964639) internal successors, (7464), 2828 states have internal predecessors, (7464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:14,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 7464 transitions. [2021-06-05 20:06:14,903 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 7464 transitions. Word has length 119 [2021-06-05 20:06:14,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:14,904 INFO L482 AbstractCegarLoop]: Abstraction has 2829 states and 7464 transitions. [2021-06-05 20:06:14,904 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:14,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 7464 transitions. [2021-06-05 20:06:14,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:06:14,907 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:14,907 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:06:14,907 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-06-05 20:06:14,907 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:06:14,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:14,907 INFO L82 PathProgramCache]: Analyzing trace with hash 2050456337, now seen corresponding path program 53 times [2021-06-05 20:06:14,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:14,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286156716] [2021-06-05 20:06:14,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:15,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:15,731 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:15,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286156716] [2021-06-05 20:06:15,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286156716] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:15,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:15,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:06:15,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957263193] [2021-06-05 20:06:15,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:06:15,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:15,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:06:15,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:06:15,732 INFO L87 Difference]: Start difference. First operand 2829 states and 7464 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:16,601 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2021-06-05 20:06:16,752 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-06-05 20:06:17,026 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-06-05 20:06:17,350 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-06-05 20:06:18,466 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-06-05 20:06:19,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:19,946 INFO L93 Difference]: Finished difference Result 4703 states and 12288 transitions. [2021-06-05 20:06:19,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:06:19,947 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:06:19,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:19,950 INFO L225 Difference]: With dead ends: 4703 [2021-06-05 20:06:19,950 INFO L226 Difference]: Without dead ends: 4508 [2021-06-05 20:06:19,950 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 3487.2ms TimeCoverageRelationStatistics Valid=571, Invalid=2969, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:06:19,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2021-06-05 20:06:19,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 3345. [2021-06-05 20:06:19,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3345 states, 3344 states have (on average 2.6632775119617227) internal successors, (8906), 3344 states have internal predecessors, (8906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:20,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3345 states to 3345 states and 8906 transitions. [2021-06-05 20:06:20,001 INFO L78 Accepts]: Start accepts. Automaton has 3345 states and 8906 transitions. Word has length 119 [2021-06-05 20:06:20,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:20,001 INFO L482 AbstractCegarLoop]: Abstraction has 3345 states and 8906 transitions. [2021-06-05 20:06:20,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:20,002 INFO L276 IsEmpty]: Start isEmpty. Operand 3345 states and 8906 transitions. [2021-06-05 20:06:20,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:06:20,005 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:20,006 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:06:20,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-06-05 20:06:20,006 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:06:20,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:20,006 INFO L82 PathProgramCache]: Analyzing trace with hash 812466701, now seen corresponding path program 2 times [2021-06-05 20:06:20,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:20,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373511312] [2021-06-05 20:06:20,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:20,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:20,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:20,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373511312] [2021-06-05 20:06:20,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373511312] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:20,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:20,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-05 20:06:20,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684115756] [2021-06-05 20:06:20,657 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-05 20:06:20,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:20,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-05 20:06:20,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2021-06-05 20:06:20,658 INFO L87 Difference]: Start difference. First operand 3345 states and 8906 transitions. Second operand has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:21,658 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-06-05 20:06:23,083 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2021-06-05 20:06:23,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:23,254 INFO L93 Difference]: Finished difference Result 5894 states and 15645 transitions. [2021-06-05 20:06:23,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 20:06:23,254 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:06:23,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:23,260 INFO L225 Difference]: With dead ends: 5894 [2021-06-05 20:06:23,260 INFO L226 Difference]: Without dead ends: 5829 [2021-06-05 20:06:23,260 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 2017.8ms TimeCoverageRelationStatistics Valid=576, Invalid=1974, Unknown=0, NotChecked=0, Total=2550 [2021-06-05 20:06:23,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5829 states. [2021-06-05 20:06:23,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5829 to 5736. [2021-06-05 20:06:23,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 5735 states have (on average 2.680034873583261) internal successors, (15370), 5735 states have internal predecessors, (15370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:23,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 15370 transitions. [2021-06-05 20:06:23,342 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 15370 transitions. Word has length 119 [2021-06-05 20:06:23,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:23,342 INFO L482 AbstractCegarLoop]: Abstraction has 5736 states and 15370 transitions. [2021-06-05 20:06:23,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:23,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 15370 transitions. [2021-06-05 20:06:23,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:06:23,348 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:23,348 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:06:23,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-06-05 20:06:23,348 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:06:23,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:23,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1240663761, now seen corresponding path program 54 times [2021-06-05 20:06:23,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:23,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831015389] [2021-06-05 20:06:23,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:24,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:24,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:24,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831015389] [2021-06-05 20:06:24,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831015389] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:24,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:24,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:06:24,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290035711] [2021-06-05 20:06:24,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:06:24,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:24,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:06:24,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:06:24,330 INFO L87 Difference]: Start difference. First operand 5736 states and 15370 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:25,361 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-06-05 20:06:25,625 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2021-06-05 20:06:25,944 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-06-05 20:06:28,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:28,509 INFO L93 Difference]: Finished difference Result 8528 states and 22532 transitions. [2021-06-05 20:06:28,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:06:28,510 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:06:28,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:28,519 INFO L225 Difference]: With dead ends: 8528 [2021-06-05 20:06:28,519 INFO L226 Difference]: Without dead ends: 7762 [2021-06-05 20:06:28,519 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 3479.6ms TimeCoverageRelationStatistics Valid=614, Invalid=2926, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:06:28,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7762 states. [2021-06-05 20:06:28,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7762 to 5856. [2021-06-05 20:06:28,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5856 states, 5855 states have (on average 2.66199829205807) internal successors, (15586), 5855 states have internal predecessors, (15586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:28,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5856 states to 5856 states and 15586 transitions. [2021-06-05 20:06:28,630 INFO L78 Accepts]: Start accepts. Automaton has 5856 states and 15586 transitions. Word has length 119 [2021-06-05 20:06:28,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:28,630 INFO L482 AbstractCegarLoop]: Abstraction has 5856 states and 15586 transitions. [2021-06-05 20:06:28,630 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:28,630 INFO L276 IsEmpty]: Start isEmpty. Operand 5856 states and 15586 transitions. [2021-06-05 20:06:28,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:06:28,636 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:28,636 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:06:28,636 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-06-05 20:06:28,636 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:06:28,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:28,636 INFO L82 PathProgramCache]: Analyzing trace with hash -32238397, now seen corresponding path program 55 times [2021-06-05 20:06:28,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:28,637 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812853769] [2021-06-05 20:06:28,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:29,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:29,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:29,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812853769] [2021-06-05 20:06:29,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812853769] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:29,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:29,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:06:29,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979924305] [2021-06-05 20:06:29,538 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:06:29,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:29,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:06:29,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:06:29,539 INFO L87 Difference]: Start difference. First operand 5856 states and 15586 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:30,508 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 52 [2021-06-05 20:06:30,670 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-06-05 20:06:30,934 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2021-06-05 20:06:31,235 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-06-05 20:06:32,273 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-06-05 20:06:32,415 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-06-05 20:06:33,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:33,971 INFO L93 Difference]: Finished difference Result 7953 states and 20909 transitions. [2021-06-05 20:06:33,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 20:06:33,972 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:06:33,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:33,980 INFO L225 Difference]: With dead ends: 7953 [2021-06-05 20:06:33,980 INFO L226 Difference]: Without dead ends: 7114 [2021-06-05 20:06:33,981 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 3833.5ms TimeCoverageRelationStatistics Valid=635, Invalid=3147, Unknown=0, NotChecked=0, Total=3782 [2021-06-05 20:06:33,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2021-06-05 20:06:34,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 5208. [2021-06-05 20:06:34,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5208 states, 5207 states have (on average 2.6606491261763012) internal successors, (13854), 5207 states have internal predecessors, (13854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:34,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 5208 states and 13854 transitions. [2021-06-05 20:06:34,080 INFO L78 Accepts]: Start accepts. Automaton has 5208 states and 13854 transitions. Word has length 119 [2021-06-05 20:06:34,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:34,080 INFO L482 AbstractCegarLoop]: Abstraction has 5208 states and 13854 transitions. [2021-06-05 20:06:34,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:34,080 INFO L276 IsEmpty]: Start isEmpty. Operand 5208 states and 13854 transitions. [2021-06-05 20:06:34,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:06:34,086 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:34,086 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:06:34,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-06-05 20:06:34,086 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:06:34,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:34,087 INFO L82 PathProgramCache]: Analyzing trace with hash -637340001, now seen corresponding path program 56 times [2021-06-05 20:06:34,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:34,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960232960] [2021-06-05 20:06:34,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:35,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:35,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:35,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960232960] [2021-06-05 20:06:35,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960232960] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:35,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:35,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:06:35,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158359814] [2021-06-05 20:06:35,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:06:35,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:35,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:06:35,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:06:35,067 INFO L87 Difference]: Start difference. First operand 5208 states and 13854 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:36,056 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-06-05 20:06:36,317 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-06-05 20:06:36,620 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-06-05 20:06:37,127 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 20:06:37,571 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-06-05 20:06:37,892 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-06-05 20:06:38,181 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-06-05 20:06:38,997 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2021-06-05 20:06:39,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:39,360 INFO L93 Difference]: Finished difference Result 6608 states and 17330 transitions. [2021-06-05 20:06:39,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:06:39,360 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:06:39,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:39,366 INFO L225 Difference]: With dead ends: 6608 [2021-06-05 20:06:39,366 INFO L226 Difference]: Without dead ends: 6281 [2021-06-05 20:06:39,366 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 3761.7ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:06:39,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6281 states. [2021-06-05 20:06:39,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 5200. [2021-06-05 20:06:39,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5200 states, 5199 states have (on average 2.660126947489902) internal successors, (13830), 5199 states have internal predecessors, (13830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:39,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5200 states to 5200 states and 13830 transitions. [2021-06-05 20:06:39,449 INFO L78 Accepts]: Start accepts. Automaton has 5200 states and 13830 transitions. Word has length 119 [2021-06-05 20:06:39,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:39,450 INFO L482 AbstractCegarLoop]: Abstraction has 5200 states and 13830 transitions. [2021-06-05 20:06:39,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:39,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5200 states and 13830 transitions. [2021-06-05 20:06:39,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:06:39,456 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:39,456 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:06:39,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-06-05 20:06:39,456 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:06:39,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:39,456 INFO L82 PathProgramCache]: Analyzing trace with hash 66975313, now seen corresponding path program 57 times [2021-06-05 20:06:39,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:39,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795651607] [2021-06-05 20:06:39,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:40,316 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:40,316 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795651607] [2021-06-05 20:06:40,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795651607] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:40,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:40,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:06:40,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436931884] [2021-06-05 20:06:40,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:06:40,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:40,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:06:40,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:06:40,317 INFO L87 Difference]: Start difference. First operand 5200 states and 13830 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:40,717 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2021-06-05 20:06:41,884 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-06-05 20:06:42,369 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-06-05 20:06:42,684 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 20:06:44,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:44,717 INFO L93 Difference]: Finished difference Result 6354 states and 16612 transitions. [2021-06-05 20:06:44,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:06:44,718 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:06:44,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:44,724 INFO L225 Difference]: With dead ends: 6354 [2021-06-05 20:06:44,724 INFO L226 Difference]: Without dead ends: 5967 [2021-06-05 20:06:44,724 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 3737.8ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:06:44,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5967 states. [2021-06-05 20:06:44,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5967 to 5192. [2021-06-05 20:06:44,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5191 states have (on average 2.6580620304372955) internal successors, (13798), 5191 states have internal predecessors, (13798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:44,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 13798 transitions. [2021-06-05 20:06:44,816 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 13798 transitions. Word has length 119 [2021-06-05 20:06:44,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:44,816 INFO L482 AbstractCegarLoop]: Abstraction has 5192 states and 13798 transitions. [2021-06-05 20:06:44,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:44,817 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 13798 transitions. [2021-06-05 20:06:44,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:06:44,823 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:44,823 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:06:44,823 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-06-05 20:06:44,823 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:06:44,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:44,823 INFO L82 PathProgramCache]: Analyzing trace with hash -365925165, now seen corresponding path program 58 times [2021-06-05 20:06:44,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:44,824 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640065287] [2021-06-05 20:06:44,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:45,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:45,729 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:45,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640065287] [2021-06-05 20:06:45,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640065287] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:45,729 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:45,729 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:06:45,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116891856] [2021-06-05 20:06:45,730 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:06:45,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:45,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:06:45,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:06:45,730 INFO L87 Difference]: Start difference. First operand 5192 states and 13798 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:46,514 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2021-06-05 20:06:46,866 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-06-05 20:06:47,226 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-06-05 20:06:47,439 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-06-05 20:06:47,742 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-06-05 20:06:48,455 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 20:06:48,790 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-06-05 20:06:49,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:49,627 INFO L93 Difference]: Finished difference Result 6651 states and 17539 transitions. [2021-06-05 20:06:49,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:06:49,628 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:06:49,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:49,636 INFO L225 Difference]: With dead ends: 6651 [2021-06-05 20:06:49,636 INFO L226 Difference]: Without dead ends: 6442 [2021-06-05 20:06:49,636 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 3210.0ms TimeCoverageRelationStatistics Valid=483, Invalid=2487, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:06:49,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6442 states. [2021-06-05 20:06:49,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6442 to 5528. [2021-06-05 20:06:49,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5528 states, 5527 states have (on average 2.6477293287497736) internal successors, (14634), 5527 states have internal predecessors, (14634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:49,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5528 states to 5528 states and 14634 transitions. [2021-06-05 20:06:49,732 INFO L78 Accepts]: Start accepts. Automaton has 5528 states and 14634 transitions. Word has length 119 [2021-06-05 20:06:49,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:49,732 INFO L482 AbstractCegarLoop]: Abstraction has 5528 states and 14634 transitions. [2021-06-05 20:06:49,732 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:49,732 INFO L276 IsEmpty]: Start isEmpty. Operand 5528 states and 14634 transitions. [2021-06-05 20:06:49,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:06:49,738 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:49,739 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:06:49,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-06-05 20:06:49,739 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:06:49,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:49,739 INFO L82 PathProgramCache]: Analyzing trace with hash 637922033, now seen corresponding path program 59 times [2021-06-05 20:06:49,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:49,739 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949892914] [2021-06-05 20:06:49,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:50,077 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-06-05 20:06:50,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:50,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:50,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949892914] [2021-06-05 20:06:50,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949892914] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:50,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:50,800 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:06:50,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078499301] [2021-06-05 20:06:50,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:06:50,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:50,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:06:50,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:06:50,801 INFO L87 Difference]: Start difference. First operand 5528 states and 14634 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:51,820 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-06-05 20:06:52,158 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-06-05 20:06:52,355 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-06-05 20:06:54,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:54,360 INFO L93 Difference]: Finished difference Result 6998 states and 18357 transitions. [2021-06-05 20:06:54,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 20:06:54,361 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:06:54,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:54,368 INFO L225 Difference]: With dead ends: 6998 [2021-06-05 20:06:54,369 INFO L226 Difference]: Without dead ends: 6522 [2021-06-05 20:06:54,369 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 3212.1ms TimeCoverageRelationStatistics Valid=514, Invalid=2566, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 20:06:54,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6522 states. [2021-06-05 20:06:54,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6522 to 5600. [2021-06-05 20:06:54,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5600 states, 5599 states have (on average 2.635113413109484) internal successors, (14754), 5599 states have internal predecessors, (14754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:54,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5600 states to 5600 states and 14754 transitions. [2021-06-05 20:06:54,461 INFO L78 Accepts]: Start accepts. Automaton has 5600 states and 14754 transitions. Word has length 119 [2021-06-05 20:06:54,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:54,462 INFO L482 AbstractCegarLoop]: Abstraction has 5600 states and 14754 transitions. [2021-06-05 20:06:54,462 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:54,462 INFO L276 IsEmpty]: Start isEmpty. Operand 5600 states and 14754 transitions. [2021-06-05 20:06:54,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:06:54,468 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:54,468 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:06:54,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-06-05 20:06:54,468 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:06:54,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:54,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1846347397, now seen corresponding path program 60 times [2021-06-05 20:06:54,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:54,469 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097933974] [2021-06-05 20:06:54,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:55,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:55,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097933974] [2021-06-05 20:06:55,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097933974] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:55,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:55,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:06:55,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53675755] [2021-06-05 20:06:55,280 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:06:55,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:55,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:06:55,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:06:55,281 INFO L87 Difference]: Start difference. First operand 5600 states and 14754 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:55,735 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-06-05 20:06:56,327 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-06-05 20:06:56,685 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-06-05 20:06:56,884 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-06-05 20:06:57,155 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-06-05 20:06:57,985 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-06-05 20:06:59,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:59,129 INFO L93 Difference]: Finished difference Result 6655 states and 17434 transitions. [2021-06-05 20:06:59,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 20:06:59,130 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:06:59,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:59,135 INFO L225 Difference]: With dead ends: 6655 [2021-06-05 20:06:59,135 INFO L226 Difference]: Without dead ends: 6114 [2021-06-05 20:06:59,136 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 3156.2ms TimeCoverageRelationStatistics Valid=516, Invalid=2676, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 20:06:59,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6114 states. [2021-06-05 20:06:59,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6114 to 5192. [2021-06-05 20:06:59,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5191 states have (on average 2.6534386438065884) internal successors, (13774), 5191 states have internal predecessors, (13774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:59,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 13774 transitions. [2021-06-05 20:06:59,216 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 13774 transitions. Word has length 119 [2021-06-05 20:06:59,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:59,216 INFO L482 AbstractCegarLoop]: Abstraction has 5192 states and 13774 transitions. [2021-06-05 20:06:59,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:59,216 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 13774 transitions. [2021-06-05 20:06:59,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:06:59,222 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:59,223 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:06:59,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-06-05 20:06:59,224 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:06:59,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:59,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1241245793, now seen corresponding path program 61 times [2021-06-05 20:06:59,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:59,224 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870092149] [2021-06-05 20:06:59,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:00,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:00,048 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:00,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870092149] [2021-06-05 20:07:00,048 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870092149] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:00,048 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:00,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:00,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517198518] [2021-06-05 20:07:00,049 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:00,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:00,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:00,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:00,049 INFO L87 Difference]: Start difference. First operand 5192 states and 13774 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:00,930 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-06-05 20:07:01,279 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-06-05 20:07:01,481 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-06-05 20:07:02,166 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-05 20:07:02,327 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 20:07:03,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:03,549 INFO L93 Difference]: Finished difference Result 6161 states and 16272 transitions. [2021-06-05 20:07:03,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:07:03,550 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:03,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:03,556 INFO L225 Difference]: With dead ends: 6161 [2021-06-05 20:07:03,556 INFO L226 Difference]: Without dead ends: 5924 [2021-06-05 20:07:03,556 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2970.7ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:07:03,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5924 states. [2021-06-05 20:07:03,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5924 to 5168. [2021-06-05 20:07:03,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5168 states, 5167 states have (on average 2.6564737758854267) internal successors, (13726), 5167 states have internal predecessors, (13726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:03,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 13726 transitions. [2021-06-05 20:07:03,634 INFO L78 Accepts]: Start accepts. Automaton has 5168 states and 13726 transitions. Word has length 119 [2021-06-05 20:07:03,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:03,634 INFO L482 AbstractCegarLoop]: Abstraction has 5168 states and 13726 transitions. [2021-06-05 20:07:03,634 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:03,634 INFO L276 IsEmpty]: Start isEmpty. Operand 5168 states and 13726 transitions. [2021-06-05 20:07:03,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:03,639 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:03,640 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:03,640 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-06-05 20:07:03,641 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:03,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:03,641 INFO L82 PathProgramCache]: Analyzing trace with hash -261011729, now seen corresponding path program 62 times [2021-06-05 20:07:03,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:03,641 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318600445] [2021-06-05 20:07:03,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:04,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:04,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:04,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318600445] [2021-06-05 20:07:04,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318600445] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:04,469 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:04,469 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:04,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844653119] [2021-06-05 20:07:04,469 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:04,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:04,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:04,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:04,470 INFO L87 Difference]: Start difference. First operand 5168 states and 13726 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:05,477 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-06-05 20:07:05,834 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-06-05 20:07:07,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:07,970 INFO L93 Difference]: Finished difference Result 7746 states and 20382 transitions. [2021-06-05 20:07:07,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:07:07,971 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:07,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:07,980 INFO L225 Difference]: With dead ends: 7746 [2021-06-05 20:07:07,980 INFO L226 Difference]: Without dead ends: 7537 [2021-06-05 20:07:07,981 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 2873.1ms TimeCoverageRelationStatistics Valid=473, Invalid=2497, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:07:07,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7537 states. [2021-06-05 20:07:08,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7537 to 5492. [2021-06-05 20:07:08,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5492 states, 5491 states have (on average 2.6519759606629028) internal successors, (14562), 5491 states have internal predecessors, (14562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:08,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5492 states to 5492 states and 14562 transitions. [2021-06-05 20:07:08,085 INFO L78 Accepts]: Start accepts. Automaton has 5492 states and 14562 transitions. Word has length 119 [2021-06-05 20:07:08,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:08,085 INFO L482 AbstractCegarLoop]: Abstraction has 5492 states and 14562 transitions. [2021-06-05 20:07:08,085 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:08,085 INFO L276 IsEmpty]: Start isEmpty. Operand 5492 states and 14562 transitions. [2021-06-05 20:07:08,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:08,091 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:08,091 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:08,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-06-05 20:07:08,092 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:08,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:08,092 INFO L82 PathProgramCache]: Analyzing trace with hash 742835469, now seen corresponding path program 63 times [2021-06-05 20:07:08,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:08,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659011047] [2021-06-05 20:07:08,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:08,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:08,879 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:08,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659011047] [2021-06-05 20:07:08,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659011047] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:08,879 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:08,879 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:08,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128813390] [2021-06-05 20:07:08,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:08,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:08,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:08,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:08,880 INFO L87 Difference]: Start difference. First operand 5492 states and 14562 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:11,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:11,766 INFO L93 Difference]: Finished difference Result 8093 states and 21200 transitions. [2021-06-05 20:07:11,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 20:07:11,767 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:11,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:11,774 INFO L225 Difference]: With dead ends: 8093 [2021-06-05 20:07:11,774 INFO L226 Difference]: Without dead ends: 7617 [2021-06-05 20:07:11,775 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 2572.2ms TimeCoverageRelationStatistics Valid=501, Invalid=2579, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 20:07:11,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7617 states. [2021-06-05 20:07:11,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7617 to 5564. [2021-06-05 20:07:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5564 states, 5563 states have (on average 2.63922344058961) internal successors, (14682), 5563 states have internal predecessors, (14682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:11,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 14682 transitions. [2021-06-05 20:07:11,854 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 14682 transitions. Word has length 119 [2021-06-05 20:07:11,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:11,854 INFO L482 AbstractCegarLoop]: Abstraction has 5564 states and 14682 transitions. [2021-06-05 20:07:11,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:11,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 14682 transitions. [2021-06-05 20:07:11,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:11,859 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:11,859 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:11,859 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-06-05 20:07:11,859 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:11,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:11,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1951260833, now seen corresponding path program 64 times [2021-06-05 20:07:11,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:11,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336744527] [2021-06-05 20:07:11,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:12,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:12,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:12,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336744527] [2021-06-05 20:07:12,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336744527] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:12,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:12,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:12,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705194335] [2021-06-05 20:07:12,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:12,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:12,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:12,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:12,663 INFO L87 Difference]: Start difference. First operand 5564 states and 14682 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:15,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:15,638 INFO L93 Difference]: Finished difference Result 7750 states and 20277 transitions. [2021-06-05 20:07:15,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 20:07:15,638 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:15,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:15,646 INFO L225 Difference]: With dead ends: 7750 [2021-06-05 20:07:15,646 INFO L226 Difference]: Without dead ends: 7209 [2021-06-05 20:07:15,646 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2645.0ms TimeCoverageRelationStatistics Valid=505, Invalid=2687, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 20:07:15,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7209 states. [2021-06-05 20:07:15,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7209 to 5156. [2021-06-05 20:07:15,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5155 states have (on average 2.639379243452958) internal successors, (13606), 5155 states have internal predecessors, (13606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:15,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 13606 transitions. [2021-06-05 20:07:15,737 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 13606 transitions. Word has length 119 [2021-06-05 20:07:15,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:15,737 INFO L482 AbstractCegarLoop]: Abstraction has 5156 states and 13606 transitions. [2021-06-05 20:07:15,738 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:15,738 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 13606 transitions. [2021-06-05 20:07:15,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:15,742 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:15,742 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:15,742 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-06-05 20:07:15,742 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:15,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:15,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1686774979, now seen corresponding path program 65 times [2021-06-05 20:07:15,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:15,743 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015771176] [2021-06-05 20:07:15,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:16,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:16,410 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:16,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015771176] [2021-06-05 20:07:16,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015771176] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:16,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:16,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:16,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838141165] [2021-06-05 20:07:16,411 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:16,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:16,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:16,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:16,411 INFO L87 Difference]: Start difference. First operand 5156 states and 13606 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:19,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:19,444 INFO L93 Difference]: Finished difference Result 7566 states and 19673 transitions. [2021-06-05 20:07:19,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 20:07:19,444 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:19,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:19,450 INFO L225 Difference]: With dead ends: 7566 [2021-06-05 20:07:19,450 INFO L226 Difference]: Without dead ends: 7212 [2021-06-05 20:07:19,450 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 2494.7ms TimeCoverageRelationStatistics Valid=516, Invalid=2790, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 20:07:19,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7212 states. [2021-06-05 20:07:19,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7212 to 5036. [2021-06-05 20:07:19,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5036 states, 5035 states have (on average 2.654617676266137) internal successors, (13366), 5035 states have internal predecessors, (13366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:19,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5036 states to 5036 states and 13366 transitions. [2021-06-05 20:07:19,519 INFO L78 Accepts]: Start accepts. Automaton has 5036 states and 13366 transitions. Word has length 119 [2021-06-05 20:07:19,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:19,519 INFO L482 AbstractCegarLoop]: Abstraction has 5036 states and 13366 transitions. [2021-06-05 20:07:19,520 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:19,520 INFO L276 IsEmpty]: Start isEmpty. Operand 5036 states and 13366 transitions. [2021-06-05 20:07:19,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:19,524 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:19,525 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:19,525 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-06-05 20:07:19,525 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:19,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:19,525 INFO L82 PathProgramCache]: Analyzing trace with hash -7741997, now seen corresponding path program 66 times [2021-06-05 20:07:19,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:19,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78251337] [2021-06-05 20:07:19,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:20,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:20,194 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:20,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78251337] [2021-06-05 20:07:20,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78251337] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:20,195 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:20,195 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:20,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293336586] [2021-06-05 20:07:20,195 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:20,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:20,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:20,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:20,195 INFO L87 Difference]: Start difference. First operand 5036 states and 13366 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:21,689 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-06-05 20:07:21,832 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-05 20:07:23,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:23,034 INFO L93 Difference]: Finished difference Result 6111 states and 16108 transitions. [2021-06-05 20:07:23,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:07:23,035 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:23,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:23,039 INFO L225 Difference]: With dead ends: 6111 [2021-06-05 20:07:23,039 INFO L226 Difference]: Without dead ends: 5898 [2021-06-05 20:07:23,040 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2455.6ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:07:23,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5898 states. [2021-06-05 20:07:23,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5898 to 5040. [2021-06-05 20:07:23,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5040 states, 5039 states have (on average 2.653701131176821) internal successors, (13372), 5039 states have internal predecessors, (13372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:23,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5040 states to 5040 states and 13372 transitions. [2021-06-05 20:07:23,096 INFO L78 Accepts]: Start accepts. Automaton has 5040 states and 13372 transitions. Word has length 119 [2021-06-05 20:07:23,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:23,096 INFO L482 AbstractCegarLoop]: Abstraction has 5040 states and 13372 transitions. [2021-06-05 20:07:23,096 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:23,096 INFO L276 IsEmpty]: Start isEmpty. Operand 5040 states and 13372 transitions. [2021-06-05 20:07:23,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:23,100 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:23,100 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:23,100 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-06-05 20:07:23,100 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:23,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:23,100 INFO L82 PathProgramCache]: Analyzing trace with hash 2143333807, now seen corresponding path program 67 times [2021-06-05 20:07:23,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:23,100 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446476469] [2021-06-05 20:07:23,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:23,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:23,810 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:23,810 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446476469] [2021-06-05 20:07:23,810 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446476469] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:23,810 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:23,810 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:23,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38958836] [2021-06-05 20:07:23,811 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:23,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:23,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:23,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:23,811 INFO L87 Difference]: Start difference. First operand 5040 states and 13372 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:24,613 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-06-05 20:07:26,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:26,781 INFO L93 Difference]: Finished difference Result 6417 states and 16748 transitions. [2021-06-05 20:07:26,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 20:07:26,782 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:26,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:26,788 INFO L225 Difference]: With dead ends: 6417 [2021-06-05 20:07:26,788 INFO L226 Difference]: Without dead ends: 6155 [2021-06-05 20:07:26,788 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 2554.9ms TimeCoverageRelationStatistics Valid=555, Invalid=2751, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 20:07:26,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6155 states. [2021-06-05 20:07:26,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6155 to 5012. [2021-06-05 20:07:26,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5012 states, 5011 states have (on average 2.6577529435242466) internal successors, (13318), 5011 states have internal predecessors, (13318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:26,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5012 states to 5012 states and 13318 transitions. [2021-06-05 20:07:26,856 INFO L78 Accepts]: Start accepts. Automaton has 5012 states and 13318 transitions. Word has length 119 [2021-06-05 20:07:26,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:26,856 INFO L482 AbstractCegarLoop]: Abstraction has 5012 states and 13318 transitions. [2021-06-05 20:07:26,856 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:26,856 INFO L276 IsEmpty]: Start isEmpty. Operand 5012 states and 13318 transitions. [2021-06-05 20:07:26,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:26,860 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:26,860 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:26,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-06-05 20:07:26,860 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:26,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:26,861 INFO L82 PathProgramCache]: Analyzing trace with hash 3059487, now seen corresponding path program 68 times [2021-06-05 20:07:26,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:26,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503766526] [2021-06-05 20:07:26,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:27,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:27,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:27,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503766526] [2021-06-05 20:07:27,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503766526] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:27,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:27,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:27,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522272301] [2021-06-05 20:07:27,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:27,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:27,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:27,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:27,556 INFO L87 Difference]: Start difference. First operand 5012 states and 13318 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:28,917 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-06-05 20:07:29,137 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 20:07:30,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:30,680 INFO L93 Difference]: Finished difference Result 6022 states and 15680 transitions. [2021-06-05 20:07:30,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:07:30,680 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:30,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:30,686 INFO L225 Difference]: With dead ends: 6022 [2021-06-05 20:07:30,686 INFO L226 Difference]: Without dead ends: 5707 [2021-06-05 20:07:30,686 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2656.8ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:07:30,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5707 states. [2021-06-05 20:07:30,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5707 to 5028. [2021-06-05 20:07:30,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5028 states, 5027 states have (on average 2.654863735826537) internal successors, (13346), 5027 states have internal predecessors, (13346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:30,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 13346 transitions. [2021-06-05 20:07:30,763 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 13346 transitions. Word has length 119 [2021-06-05 20:07:30,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:30,763 INFO L482 AbstractCegarLoop]: Abstraction has 5028 states and 13346 transitions. [2021-06-05 20:07:30,763 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:30,763 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 13346 transitions. [2021-06-05 20:07:30,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:30,767 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:30,768 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:30,768 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-06-05 20:07:30,768 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:30,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:30,768 INFO L82 PathProgramCache]: Analyzing trace with hash 522420257, now seen corresponding path program 69 times [2021-06-05 20:07:30,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:30,768 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171458121] [2021-06-05 20:07:30,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:31,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:31,461 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:31,461 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171458121] [2021-06-05 20:07:31,461 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171458121] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:31,461 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:31,461 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:31,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250615795] [2021-06-05 20:07:31,461 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:31,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:31,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:31,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:31,462 INFO L87 Difference]: Start difference. First operand 5028 states and 13346 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:32,837 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-06-05 20:07:32,991 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 20:07:34,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:34,174 INFO L93 Difference]: Finished difference Result 5687 states and 14941 transitions. [2021-06-05 20:07:34,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 20:07:34,174 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:34,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:34,178 INFO L225 Difference]: With dead ends: 5687 [2021-06-05 20:07:34,178 INFO L226 Difference]: Without dead ends: 5474 [2021-06-05 20:07:34,178 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 2359.9ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:07:34,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2021-06-05 20:07:34,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5032. [2021-06-05 20:07:34,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5032 states, 5031 states have (on average 2.653945537666468) internal successors, (13352), 5031 states have internal predecessors, (13352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:34,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5032 states to 5032 states and 13352 transitions. [2021-06-05 20:07:34,234 INFO L78 Accepts]: Start accepts. Automaton has 5032 states and 13352 transitions. Word has length 119 [2021-06-05 20:07:34,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:34,234 INFO L482 AbstractCegarLoop]: Abstraction has 5032 states and 13352 transitions. [2021-06-05 20:07:34,234 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:34,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5032 states and 13352 transitions. [2021-06-05 20:07:34,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:34,238 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:34,238 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:34,238 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-06-05 20:07:34,238 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:34,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:34,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1792695235, now seen corresponding path program 70 times [2021-06-05 20:07:34,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:34,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150047346] [2021-06-05 20:07:34,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:34,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:34,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:34,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150047346] [2021-06-05 20:07:34,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150047346] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:34,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:34,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:34,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820195896] [2021-06-05 20:07:34,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:34,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:34,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:34,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:34,960 INFO L87 Difference]: Start difference. First operand 5032 states and 13352 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:36,307 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-06-05 20:07:37,113 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-06-05 20:07:37,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:37,948 INFO L93 Difference]: Finished difference Result 5973 states and 15531 transitions. [2021-06-05 20:07:37,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 20:07:37,948 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:37,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:37,953 INFO L225 Difference]: With dead ends: 5973 [2021-06-05 20:07:37,953 INFO L226 Difference]: Without dead ends: 5651 [2021-06-05 20:07:37,953 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 2637.4ms TimeCoverageRelationStatistics Valid=532, Invalid=2660, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 20:07:37,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2021-06-05 20:07:38,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 4944. [2021-06-05 20:07:38,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4944 states, 4943 states have (on average 2.6663969249443658) internal successors, (13180), 4943 states have internal predecessors, (13180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:38,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4944 states to 4944 states and 13180 transitions. [2021-06-05 20:07:38,031 INFO L78 Accepts]: Start accepts. Automaton has 4944 states and 13180 transitions. Word has length 119 [2021-06-05 20:07:38,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:38,031 INFO L482 AbstractCegarLoop]: Abstraction has 4944 states and 13180 transitions. [2021-06-05 20:07:38,032 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:38,032 INFO L276 IsEmpty]: Start isEmpty. Operand 4944 states and 13180 transitions. [2021-06-05 20:07:38,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:38,037 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:38,037 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:38,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-06-05 20:07:38,038 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:38,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:38,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1011915293, now seen corresponding path program 71 times [2021-06-05 20:07:38,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:38,038 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836112828] [2021-06-05 20:07:38,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:38,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:38,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:38,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836112828] [2021-06-05 20:07:38,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836112828] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:38,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:38,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 20:07:38,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964631646] [2021-06-05 20:07:38,389 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 20:07:38,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:38,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 20:07:38,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:07:38,389 INFO L87 Difference]: Start difference. First operand 4944 states and 13180 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:39,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:39,060 INFO L93 Difference]: Finished difference Result 7703 states and 19760 transitions. [2021-06-05 20:07:39,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 20:07:39,060 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:39,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:39,067 INFO L225 Difference]: With dead ends: 7703 [2021-06-05 20:07:39,067 INFO L226 Difference]: Without dead ends: 7591 [2021-06-05 20:07:39,068 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 567.8ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-06-05 20:07:39,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7591 states. [2021-06-05 20:07:39,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7591 to 4568. [2021-06-05 20:07:39,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4568 states, 4567 states have (on average 2.6301729800744473) internal successors, (12012), 4567 states have internal predecessors, (12012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:39,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 12012 transitions. [2021-06-05 20:07:39,143 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 12012 transitions. Word has length 119 [2021-06-05 20:07:39,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:39,144 INFO L482 AbstractCegarLoop]: Abstraction has 4568 states and 12012 transitions. [2021-06-05 20:07:39,144 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:39,144 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 12012 transitions. [2021-06-05 20:07:39,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:39,148 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:39,148 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:39,148 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-06-05 20:07:39,148 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:39,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:39,148 INFO L82 PathProgramCache]: Analyzing trace with hash 2140812199, now seen corresponding path program 72 times [2021-06-05 20:07:39,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:39,148 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734596532] [2021-06-05 20:07:39,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:39,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:39,912 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:39,912 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734596532] [2021-06-05 20:07:39,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734596532] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:39,913 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:39,913 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:39,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307275375] [2021-06-05 20:07:39,913 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:39,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:39,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:39,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:39,913 INFO L87 Difference]: Start difference. First operand 4568 states and 12012 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:41,208 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:07:41,382 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-06-05 20:07:42,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:42,299 INFO L93 Difference]: Finished difference Result 5081 states and 13240 transitions. [2021-06-05 20:07:42,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:07:42,299 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:42,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:42,303 INFO L225 Difference]: With dead ends: 5081 [2021-06-05 20:07:42,304 INFO L226 Difference]: Without dead ends: 4852 [2021-06-05 20:07:42,304 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2175.4ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:07:42,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4852 states. [2021-06-05 20:07:42,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4852 to 4568. [2021-06-05 20:07:42,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4568 states, 4567 states have (on average 2.6284212831180205) internal successors, (12004), 4567 states have internal predecessors, (12004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:42,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 12004 transitions. [2021-06-05 20:07:42,358 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 12004 transitions. Word has length 119 [2021-06-05 20:07:42,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:42,358 INFO L482 AbstractCegarLoop]: Abstraction has 4568 states and 12004 transitions. [2021-06-05 20:07:42,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:42,358 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 12004 transitions. [2021-06-05 20:07:42,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:42,362 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:42,362 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:42,362 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-06-05 20:07:42,362 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:42,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:42,362 INFO L82 PathProgramCache]: Analyzing trace with hash 2136394059, now seen corresponding path program 73 times [2021-06-05 20:07:42,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:42,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3565155] [2021-06-05 20:07:42,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:43,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:43,047 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:43,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3565155] [2021-06-05 20:07:43,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3565155] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:43,047 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:43,047 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:43,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203527276] [2021-06-05 20:07:43,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:43,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:43,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:43,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:43,048 INFO L87 Difference]: Start difference. First operand 4568 states and 12004 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:44,034 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 20:07:44,266 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 20:07:45,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:45,543 INFO L93 Difference]: Finished difference Result 5503 states and 14343 transitions. [2021-06-05 20:07:45,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 20:07:45,543 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:45,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:45,548 INFO L225 Difference]: With dead ends: 5503 [2021-06-05 20:07:45,548 INFO L226 Difference]: Without dead ends: 5294 [2021-06-05 20:07:45,549 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 2163.4ms TimeCoverageRelationStatistics Valid=448, Invalid=2308, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 20:07:45,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2021-06-05 20:07:45,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 4856. [2021-06-05 20:07:45,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4856 states, 4855 states have (on average 2.6249227600411946) internal successors, (12744), 4855 states have internal predecessors, (12744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:45,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4856 states to 4856 states and 12744 transitions. [2021-06-05 20:07:45,610 INFO L78 Accepts]: Start accepts. Automaton has 4856 states and 12744 transitions. Word has length 119 [2021-06-05 20:07:45,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:45,610 INFO L482 AbstractCegarLoop]: Abstraction has 4856 states and 12744 transitions. [2021-06-05 20:07:45,610 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:45,610 INFO L276 IsEmpty]: Start isEmpty. Operand 4856 states and 12744 transitions. [2021-06-05 20:07:45,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:45,614 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:45,614 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:45,614 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-06-05 20:07:45,614 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:45,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:45,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1661687757, now seen corresponding path program 74 times [2021-06-05 20:07:45,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:45,615 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002559326] [2021-06-05 20:07:45,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:46,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:46,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:46,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002559326] [2021-06-05 20:07:46,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002559326] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:46,347 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:46,347 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:46,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985150432] [2021-06-05 20:07:46,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:46,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:46,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:46,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:46,347 INFO L87 Difference]: Start difference. First operand 4856 states and 12744 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:47,367 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 20:07:47,611 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 20:07:49,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:49,179 INFO L93 Difference]: Finished difference Result 5955 states and 15363 transitions. [2021-06-05 20:07:49,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 20:07:49,180 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:49,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:49,183 INFO L225 Difference]: With dead ends: 5955 [2021-06-05 20:07:49,183 INFO L226 Difference]: Without dead ends: 4966 [2021-06-05 20:07:49,183 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 2400.1ms TimeCoverageRelationStatistics Valid=515, Invalid=2677, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 20:07:49,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4966 states. [2021-06-05 20:07:49,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4966 to 4520. [2021-06-05 20:07:49,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4520 states, 4519 states have (on average 2.6297853507413143) internal successors, (11884), 4519 states have internal predecessors, (11884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:49,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4520 states to 4520 states and 11884 transitions. [2021-06-05 20:07:49,238 INFO L78 Accepts]: Start accepts. Automaton has 4520 states and 11884 transitions. Word has length 119 [2021-06-05 20:07:49,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:49,238 INFO L482 AbstractCegarLoop]: Abstraction has 4520 states and 11884 transitions. [2021-06-05 20:07:49,238 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:49,238 INFO L276 IsEmpty]: Start isEmpty. Operand 4520 states and 11884 transitions. [2021-06-05 20:07:49,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:49,242 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:49,242 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:49,242 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-06-05 20:07:49,242 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:49,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:49,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1217623095, now seen corresponding path program 75 times [2021-06-05 20:07:49,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:49,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488254481] [2021-06-05 20:07:49,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:49,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:49,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:49,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488254481] [2021-06-05 20:07:49,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488254481] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:49,919 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:49,919 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:49,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114637931] [2021-06-05 20:07:49,919 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:49,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:49,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:49,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:49,920 INFO L87 Difference]: Start difference. First operand 4520 states and 11884 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:50,973 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 20:07:51,226 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 20:07:51,542 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-06-05 20:07:52,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:52,591 INFO L93 Difference]: Finished difference Result 5015 states and 13085 transitions. [2021-06-05 20:07:52,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 20:07:52,592 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:52,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:52,595 INFO L225 Difference]: With dead ends: 5015 [2021-06-05 20:07:52,595 INFO L226 Difference]: Without dead ends: 4682 [2021-06-05 20:07:52,596 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 2312.0ms TimeCoverageRelationStatistics Valid=460, Invalid=2296, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 20:07:52,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4682 states. [2021-06-05 20:07:52,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4682 to 4400. [2021-06-05 20:07:52,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4400 states, 4399 states have (on average 2.6487838145032963) internal successors, (11652), 4399 states have internal predecessors, (11652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:52,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 11652 transitions. [2021-06-05 20:07:52,644 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 11652 transitions. Word has length 119 [2021-06-05 20:07:52,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:52,644 INFO L482 AbstractCegarLoop]: Abstraction has 4400 states and 11652 transitions. [2021-06-05 20:07:52,644 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:52,644 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 11652 transitions. [2021-06-05 20:07:52,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:52,648 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:52,648 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:52,648 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-06-05 20:07:52,648 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:52,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:52,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1354769191, now seen corresponding path program 76 times [2021-06-05 20:07:52,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:52,648 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65284106] [2021-06-05 20:07:52,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:53,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:53,326 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:53,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65284106] [2021-06-05 20:07:53,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65284106] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:53,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:53,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:53,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760359470] [2021-06-05 20:07:53,326 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:53,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:53,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:53,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:53,327 INFO L87 Difference]: Start difference. First operand 4400 states and 11652 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:54,635 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:07:54,847 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-06-05 20:07:55,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:55,757 INFO L93 Difference]: Finished difference Result 4961 states and 13012 transitions. [2021-06-05 20:07:55,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:07:55,758 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:55,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:55,761 INFO L225 Difference]: With dead ends: 4961 [2021-06-05 20:07:55,762 INFO L226 Difference]: Without dead ends: 4704 [2021-06-05 20:07:55,762 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2118.4ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:07:55,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2021-06-05 20:07:55,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 4368. [2021-06-05 20:07:55,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4368 states, 4367 states have (on average 2.6544538584840853) internal successors, (11592), 4367 states have internal predecessors, (11592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:55,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4368 states to 4368 states and 11592 transitions. [2021-06-05 20:07:55,810 INFO L78 Accepts]: Start accepts. Automaton has 4368 states and 11592 transitions. Word has length 119 [2021-06-05 20:07:55,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:55,811 INFO L482 AbstractCegarLoop]: Abstraction has 4368 states and 11592 transitions. [2021-06-05 20:07:55,811 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:55,811 INFO L276 IsEmpty]: Start isEmpty. Operand 4368 states and 11592 transitions. [2021-06-05 20:07:55,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:55,814 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:55,814 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:55,814 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-06-05 20:07:55,814 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:55,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:55,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1857143795, now seen corresponding path program 77 times [2021-06-05 20:07:55,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:55,815 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951378051] [2021-06-05 20:07:55,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:56,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:56,036 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:56,036 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951378051] [2021-06-05 20:07:56,036 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951378051] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:56,036 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:56,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 20:07:56,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438896955] [2021-06-05 20:07:56,037 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 20:07:56,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:56,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 20:07:56,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-05 20:07:56,037 INFO L87 Difference]: Start difference. First operand 4368 states and 11592 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:56,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:56,319 INFO L93 Difference]: Finished difference Result 7600 states and 19597 transitions. [2021-06-05 20:07:56,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 20:07:56,319 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:07:56,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:56,326 INFO L225 Difference]: With dead ends: 7600 [2021-06-05 20:07:56,327 INFO L226 Difference]: Without dead ends: 7600 [2021-06-05 20:07:56,327 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 271.8ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:07:56,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7600 states. [2021-06-05 20:07:56,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7600 to 4596. [2021-06-05 20:07:56,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4596 states, 4595 states have (on average 2.610228509249184) internal successors, (11994), 4595 states have internal predecessors, (11994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:56,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4596 states to 4596 states and 11994 transitions. [2021-06-05 20:07:56,399 INFO L78 Accepts]: Start accepts. Automaton has 4596 states and 11994 transitions. Word has length 119 [2021-06-05 20:07:56,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:56,399 INFO L482 AbstractCegarLoop]: Abstraction has 4596 states and 11994 transitions. [2021-06-05 20:07:56,399 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:56,399 INFO L276 IsEmpty]: Start isEmpty. Operand 4596 states and 11994 transitions. [2021-06-05 20:07:56,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:07:56,403 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:56,403 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:07:56,403 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-06-05 20:07:56,403 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:07:56,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:56,403 INFO L82 PathProgramCache]: Analyzing trace with hash -999147435, now seen corresponding path program 78 times [2021-06-05 20:07:56,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:56,403 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248336538] [2021-06-05 20:07:56,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:57,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:57,037 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:57,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248336538] [2021-06-05 20:07:57,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248336538] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:57,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:57,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:07:57,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443704613] [2021-06-05 20:07:57,037 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:07:57,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:57,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:07:57,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:07:57,038 INFO L87 Difference]: Start difference. First operand 4596 states and 11994 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:58,037 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-06-05 20:07:58,275 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-06-05 20:08:00,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:00,196 INFO L93 Difference]: Finished difference Result 6838 states and 17606 transitions. [2021-06-05 20:08:00,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:08:00,196 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:08:00,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:00,203 INFO L225 Difference]: With dead ends: 6838 [2021-06-05 20:08:00,203 INFO L226 Difference]: Without dead ends: 6547 [2021-06-05 20:08:00,203 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2650.3ms TimeCoverageRelationStatistics Valid=571, Invalid=2969, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:08:00,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6547 states. [2021-06-05 20:08:00,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6547 to 5028. [2021-06-05 20:08:00,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5028 states, 5027 states have (on average 2.626218420529143) internal successors, (13202), 5027 states have internal predecessors, (13202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:00,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 13202 transitions. [2021-06-05 20:08:00,269 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 13202 transitions. Word has length 119 [2021-06-05 20:08:00,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:00,270 INFO L482 AbstractCegarLoop]: Abstraction has 5028 states and 13202 transitions. [2021-06-05 20:08:00,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:00,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 13202 transitions. [2021-06-05 20:08:00,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:08:00,274 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:00,274 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:08:00,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-06-05 20:08:00,274 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:00,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:00,274 INFO L82 PathProgramCache]: Analyzing trace with hash 4699763, now seen corresponding path program 79 times [2021-06-05 20:08:00,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:00,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263318195] [2021-06-05 20:08:00,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:00,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:00,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:00,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263318195] [2021-06-05 20:08:00,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263318195] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:00,937 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:00,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:08:00,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537221146] [2021-06-05 20:08:00,937 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:08:00,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:00,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:08:00,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:08:00,938 INFO L87 Difference]: Start difference. First operand 5028 states and 13202 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:01,895 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2021-06-05 20:08:02,118 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-06-05 20:08:04,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:04,280 INFO L93 Difference]: Finished difference Result 7400 states and 19144 transitions. [2021-06-05 20:08:04,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:08:04,281 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:08:04,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:04,286 INFO L225 Difference]: With dead ends: 7400 [2021-06-05 20:08:04,286 INFO L226 Difference]: Without dead ends: 6634 [2021-06-05 20:08:04,287 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 2888.9ms TimeCoverageRelationStatistics Valid=614, Invalid=2926, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:08:04,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6634 states. [2021-06-05 20:08:04,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6634 to 5148. [2021-06-05 20:08:04,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5148 states, 5147 states have (on average 2.606955508062949) internal successors, (13418), 5147 states have internal predecessors, (13418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:04,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5148 states to 5148 states and 13418 transitions. [2021-06-05 20:08:04,366 INFO L78 Accepts]: Start accepts. Automaton has 5148 states and 13418 transitions. Word has length 119 [2021-06-05 20:08:04,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:04,366 INFO L482 AbstractCegarLoop]: Abstraction has 5148 states and 13418 transitions. [2021-06-05 20:08:04,366 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:04,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5148 states and 13418 transitions. [2021-06-05 20:08:04,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:08:04,372 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:04,372 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:08:04,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-06-05 20:08:04,372 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:04,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:04,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1213125127, now seen corresponding path program 80 times [2021-06-05 20:08:04,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:04,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244336623] [2021-06-05 20:08:04,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:05,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:05,239 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:05,239 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244336623] [2021-06-05 20:08:05,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244336623] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:05,240 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:05,240 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:08:05,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752208030] [2021-06-05 20:08:05,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:08:05,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:05,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:08:05,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:08:05,241 INFO L87 Difference]: Start difference. First operand 5148 states and 13418 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:06,250 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-06-05 20:08:06,506 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2021-06-05 20:08:06,806 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-06-05 20:08:07,876 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-06-05 20:08:09,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:09,556 INFO L93 Difference]: Finished difference Result 6825 states and 17521 transitions. [2021-06-05 20:08:09,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 20:08:09,556 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:08:09,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:09,563 INFO L225 Difference]: With dead ends: 6825 [2021-06-05 20:08:09,563 INFO L226 Difference]: Without dead ends: 6034 [2021-06-05 20:08:09,564 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 3766.5ms TimeCoverageRelationStatistics Valid=635, Invalid=3147, Unknown=0, NotChecked=0, Total=3782 [2021-06-05 20:08:09,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6034 states. [2021-06-05 20:08:09,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6034 to 4548. [2021-06-05 20:08:09,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4548 states, 4547 states have (on average 2.606113921266769) internal successors, (11850), 4547 states have internal predecessors, (11850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:09,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 11850 transitions. [2021-06-05 20:08:09,640 INFO L78 Accepts]: Start accepts. Automaton has 4548 states and 11850 transitions. Word has length 119 [2021-06-05 20:08:09,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:09,640 INFO L482 AbstractCegarLoop]: Abstraction has 4548 states and 11850 transitions. [2021-06-05 20:08:09,640 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:09,640 INFO L276 IsEmpty]: Start isEmpty. Operand 4548 states and 11850 transitions. [2021-06-05 20:08:09,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:08:09,645 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:09,645 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:08:09,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-06-05 20:08:09,645 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:09,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:09,646 INFO L82 PathProgramCache]: Analyzing trace with hash 608023523, now seen corresponding path program 81 times [2021-06-05 20:08:09,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:09,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313859049] [2021-06-05 20:08:09,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:10,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:10,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:10,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313859049] [2021-06-05 20:08:10,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313859049] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:10,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:10,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:08:10,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152792576] [2021-06-05 20:08:10,485 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:08:10,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:10,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:08:10,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:08:10,486 INFO L87 Difference]: Start difference. First operand 4548 states and 11850 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:11,555 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:08:11,809 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-06-05 20:08:12,125 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-06-05 20:08:12,670 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-05 20:08:13,114 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-06-05 20:08:13,783 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-06-05 20:08:14,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:14,977 INFO L93 Difference]: Finished difference Result 5576 states and 14238 transitions. [2021-06-05 20:08:14,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:08:14,977 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:08:14,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:14,983 INFO L225 Difference]: With dead ends: 5576 [2021-06-05 20:08:14,984 INFO L226 Difference]: Without dead ends: 5257 [2021-06-05 20:08:14,984 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 3822.2ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:08:14,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5257 states. [2021-06-05 20:08:15,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5257 to 4536. [2021-06-05 20:08:15,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4536 states, 4535 states have (on average 2.6063947078280045) internal successors, (11820), 4535 states have internal predecessors, (11820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:15,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4536 states to 4536 states and 11820 transitions. [2021-06-05 20:08:15,056 INFO L78 Accepts]: Start accepts. Automaton has 4536 states and 11820 transitions. Word has length 119 [2021-06-05 20:08:15,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:15,057 INFO L482 AbstractCegarLoop]: Abstraction has 4536 states and 11820 transitions. [2021-06-05 20:08:15,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:15,057 INFO L276 IsEmpty]: Start isEmpty. Operand 4536 states and 11820 transitions. [2021-06-05 20:08:15,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:08:15,061 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:15,061 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:08:15,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-06-05 20:08:15,062 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:15,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:15,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1312338837, now seen corresponding path program 82 times [2021-06-05 20:08:15,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:15,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747297552] [2021-06-05 20:08:15,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:15,609 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-06-05 20:08:16,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:16,141 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:16,141 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747297552] [2021-06-05 20:08:16,141 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747297552] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:16,141 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:16,142 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:08:16,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822846564] [2021-06-05 20:08:16,142 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:08:16,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:16,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:08:16,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:08:16,142 INFO L87 Difference]: Start difference. First operand 4536 states and 11820 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:17,126 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:08:17,385 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-06-05 20:08:17,850 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-06-05 20:08:18,097 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-06-05 20:08:18,557 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-06-05 20:08:20,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:20,098 INFO L93 Difference]: Finished difference Result 5346 states and 13574 transitions. [2021-06-05 20:08:20,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:08:20,099 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:08:20,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:20,103 INFO L225 Difference]: With dead ends: 5346 [2021-06-05 20:08:20,103 INFO L226 Difference]: Without dead ends: 4967 [2021-06-05 20:08:20,103 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 3646.9ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:08:20,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4967 states. [2021-06-05 20:08:20,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4967 to 4516. [2021-06-05 20:08:20,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 4515 states have (on average 2.613953488372093) internal successors, (11802), 4515 states have internal predecessors, (11802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:20,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 11802 transitions. [2021-06-05 20:08:20,169 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 11802 transitions. Word has length 119 [2021-06-05 20:08:20,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:20,169 INFO L482 AbstractCegarLoop]: Abstraction has 4516 states and 11802 transitions. [2021-06-05 20:08:20,169 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:20,170 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 11802 transitions. [2021-06-05 20:08:20,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:08:20,174 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:20,175 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:08:20,175 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-06-05 20:08:20,175 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:20,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:20,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1179169427, now seen corresponding path program 83 times [2021-06-05 20:08:20,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:20,175 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72556345] [2021-06-05 20:08:20,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:21,056 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:21,056 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72556345] [2021-06-05 20:08:21,057 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72556345] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:21,057 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:21,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:08:21,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141008850] [2021-06-05 20:08:21,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:08:21,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:21,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:08:21,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:08:21,057 INFO L87 Difference]: Start difference. First operand 4516 states and 11802 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:21,987 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-06-05 20:08:22,221 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-06-05 20:08:22,687 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 20:08:22,906 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 20:08:24,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:24,853 INFO L93 Difference]: Finished difference Result 5274 states and 13434 transitions. [2021-06-05 20:08:24,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:08:24,853 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:08:24,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:24,858 INFO L225 Difference]: With dead ends: 5274 [2021-06-05 20:08:24,858 INFO L226 Difference]: Without dead ends: 4955 [2021-06-05 20:08:24,858 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 3339.6ms TimeCoverageRelationStatistics Valid=600, Invalid=2822, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:08:24,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4955 states. [2021-06-05 20:08:24,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4955 to 4528. [2021-06-05 20:08:24,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4528 states, 4527 states have (on average 2.6092334879611223) internal successors, (11812), 4527 states have internal predecessors, (11812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:24,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 11812 transitions. [2021-06-05 20:08:24,924 INFO L78 Accepts]: Start accepts. Automaton has 4528 states and 11812 transitions. Word has length 119 [2021-06-05 20:08:24,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:24,925 INFO L482 AbstractCegarLoop]: Abstraction has 4528 states and 11812 transitions. [2021-06-05 20:08:24,925 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:24,925 INFO L276 IsEmpty]: Start isEmpty. Operand 4528 states and 11812 transitions. [2021-06-05 20:08:24,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:08:24,929 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:24,929 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:08:24,929 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-06-05 20:08:24,929 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:24,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:24,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1183587567, now seen corresponding path program 84 times [2021-06-05 20:08:24,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:24,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820315384] [2021-06-05 20:08:24,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:25,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:25,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:25,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820315384] [2021-06-05 20:08:25,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820315384] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:25,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:25,754 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:08:25,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308118877] [2021-06-05 20:08:25,754 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:08:25,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:25,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:08:25,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:08:25,755 INFO L87 Difference]: Start difference. First operand 4528 states and 11812 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:26,954 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:08:27,199 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-06-05 20:08:27,486 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:08:30,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:30,047 INFO L93 Difference]: Finished difference Result 7050 states and 18169 transitions. [2021-06-05 20:08:30,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:08:30,048 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:08:30,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:30,055 INFO L225 Difference]: With dead ends: 7050 [2021-06-05 20:08:30,055 INFO L226 Difference]: Without dead ends: 6751 [2021-06-05 20:08:30,056 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 3610.4ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:08:30,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6751 states. [2021-06-05 20:08:30,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6751 to 5104. [2021-06-05 20:08:30,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5104 states, 5103 states have (on average 2.625906329610033) internal successors, (13400), 5103 states have internal predecessors, (13400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:30,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5104 states to 5104 states and 13400 transitions. [2021-06-05 20:08:30,138 INFO L78 Accepts]: Start accepts. Automaton has 5104 states and 13400 transitions. Word has length 119 [2021-06-05 20:08:30,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:30,138 INFO L482 AbstractCegarLoop]: Abstraction has 5104 states and 13400 transitions. [2021-06-05 20:08:30,138 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:30,138 INFO L276 IsEmpty]: Start isEmpty. Operand 5104 states and 13400 transitions. [2021-06-05 20:08:30,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:08:30,143 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:30,143 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:08:30,143 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-06-05 20:08:30,143 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:30,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:30,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1658293869, now seen corresponding path program 85 times [2021-06-05 20:08:30,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:30,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552776147] [2021-06-05 20:08:30,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:30,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:30,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:30,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552776147] [2021-06-05 20:08:30,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552776147] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:30,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:30,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:08:30,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774973080] [2021-06-05 20:08:30,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:08:30,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:30,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:08:30,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:08:30,989 INFO L87 Difference]: Start difference. First operand 5104 states and 13400 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:31,979 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:08:32,233 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-06-05 20:08:32,519 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:08:35,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:35,419 INFO L93 Difference]: Finished difference Result 7738 states and 19953 transitions. [2021-06-05 20:08:35,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-05 20:08:35,419 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:08:35,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:35,425 INFO L225 Difference]: With dead ends: 7738 [2021-06-05 20:08:35,426 INFO L226 Difference]: Without dead ends: 6190 [2021-06-05 20:08:35,426 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 3768.9ms TimeCoverageRelationStatistics Valid=672, Invalid=3360, Unknown=0, NotChecked=0, Total=4032 [2021-06-05 20:08:35,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2021-06-05 20:08:35,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 4576. [2021-06-05 20:08:35,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4576 states, 4575 states have (on average 2.5975956284153003) internal successors, (11884), 4575 states have internal predecessors, (11884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:35,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4576 states to 4576 states and 11884 transitions. [2021-06-05 20:08:35,503 INFO L78 Accepts]: Start accepts. Automaton has 4576 states and 11884 transitions. Word has length 119 [2021-06-05 20:08:35,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:35,504 INFO L482 AbstractCegarLoop]: Abstraction has 4576 states and 11884 transitions. [2021-06-05 20:08:35,504 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:35,504 INFO L276 IsEmpty]: Start isEmpty. Operand 4576 states and 11884 transitions. [2021-06-05 20:08:35,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:08:35,509 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:35,509 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:08:35,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-06-05 20:08:35,509 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:35,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:35,509 INFO L82 PathProgramCache]: Analyzing trace with hash -2102358531, now seen corresponding path program 86 times [2021-06-05 20:08:35,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:35,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655862555] [2021-06-05 20:08:35,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:36,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:36,289 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:36,289 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655862555] [2021-06-05 20:08:36,289 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655862555] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:36,289 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:36,289 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:08:36,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004695342] [2021-06-05 20:08:36,290 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:08:36,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:36,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:08:36,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:08:36,290 INFO L87 Difference]: Start difference. First operand 4576 states and 11884 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:37,266 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:08:37,521 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-06-05 20:08:37,804 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:08:38,334 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-05 20:08:38,469 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-06-05 20:08:40,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:40,241 INFO L93 Difference]: Finished difference Result 5684 states and 14488 transitions. [2021-06-05 20:08:40,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:08:40,242 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:08:40,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:40,247 INFO L225 Difference]: With dead ends: 5684 [2021-06-05 20:08:40,247 INFO L226 Difference]: Without dead ends: 5261 [2021-06-05 20:08:40,247 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 3354.7ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:08:40,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2021-06-05 20:08:40,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 4456. [2021-06-05 20:08:40,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4456 states, 4455 states have (on average 2.6154882154882153) internal successors, (11652), 4455 states have internal predecessors, (11652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:40,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4456 states to 4456 states and 11652 transitions. [2021-06-05 20:08:40,318 INFO L78 Accepts]: Start accepts. Automaton has 4456 states and 11652 transitions. Word has length 119 [2021-06-05 20:08:40,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:40,318 INFO L482 AbstractCegarLoop]: Abstraction has 4456 states and 11652 transitions. [2021-06-05 20:08:40,318 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:40,318 INFO L276 IsEmpty]: Start isEmpty. Operand 4456 states and 11652 transitions. [2021-06-05 20:08:40,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:08:40,323 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:40,323 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:08:40,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-06-05 20:08:40,323 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:40,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:40,323 INFO L82 PathProgramCache]: Analyzing trace with hash -858513275, now seen corresponding path program 87 times [2021-06-05 20:08:40,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:40,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088237451] [2021-06-05 20:08:40,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:40,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:40,631 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:40,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088237451] [2021-06-05 20:08:40,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088237451] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:40,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:40,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 20:08:40,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039933994] [2021-06-05 20:08:40,632 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 20:08:40,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:40,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 20:08:40,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:08:40,632 INFO L87 Difference]: Start difference. First operand 4456 states and 11652 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:41,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:41,311 INFO L93 Difference]: Finished difference Result 4374 states and 11032 transitions. [2021-06-05 20:08:41,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 20:08:41,311 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:08:41,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:41,316 INFO L225 Difference]: With dead ends: 4374 [2021-06-05 20:08:41,316 INFO L226 Difference]: Without dead ends: 4262 [2021-06-05 20:08:41,316 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 577.8ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-06-05 20:08:41,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4262 states. [2021-06-05 20:08:41,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4262 to 3600. [2021-06-05 20:08:41,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 3599 states have (on average 2.569046957488191) internal successors, (9246), 3599 states have internal predecessors, (9246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:41,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 9246 transitions. [2021-06-05 20:08:41,374 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 9246 transitions. Word has length 119 [2021-06-05 20:08:41,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:41,374 INFO L482 AbstractCegarLoop]: Abstraction has 3600 states and 9246 transitions. [2021-06-05 20:08:41,375 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:41,375 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 9246 transitions. [2021-06-05 20:08:41,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:08:41,378 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:41,379 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:08:41,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-06-05 20:08:41,379 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:41,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:41,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1610574523, now seen corresponding path program 88 times [2021-06-05 20:08:41,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:41,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500215844] [2021-06-05 20:08:41,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:42,232 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:42,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500215844] [2021-06-05 20:08:42,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500215844] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:42,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:42,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:08:42,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496603785] [2021-06-05 20:08:42,232 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:08:42,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:42,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:08:42,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:08:42,233 INFO L87 Difference]: Start difference. First operand 3600 states and 9246 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:43,164 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-06-05 20:08:43,593 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-06-05 20:08:43,781 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-06-05 20:08:44,050 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 20:08:45,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:45,211 INFO L93 Difference]: Finished difference Result 3873 states and 9766 transitions. [2021-06-05 20:08:45,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:08:45,212 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:08:45,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:45,216 INFO L225 Difference]: With dead ends: 3873 [2021-06-05 20:08:45,216 INFO L226 Difference]: Without dead ends: 3648 [2021-06-05 20:08:45,216 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2685.3ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:08:45,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2021-06-05 20:08:45,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3620. [2021-06-05 20:08:45,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3619 states have (on average 2.564244266371926) internal successors, (9280), 3619 states have internal predecessors, (9280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:45,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 9280 transitions. [2021-06-05 20:08:45,266 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 9280 transitions. Word has length 119 [2021-06-05 20:08:45,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:45,266 INFO L482 AbstractCegarLoop]: Abstraction has 3620 states and 9280 transitions. [2021-06-05 20:08:45,266 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:45,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 9280 transitions. [2021-06-05 20:08:45,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:08:45,270 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:45,270 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:08:45,270 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-06-05 20:08:45,271 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:45,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:45,271 INFO L82 PathProgramCache]: Analyzing trace with hash -561914449, now seen corresponding path program 89 times [2021-06-05 20:08:45,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:45,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152422621] [2021-06-05 20:08:45,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:46,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:46,150 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:46,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152422621] [2021-06-05 20:08:46,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152422621] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:46,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:46,150 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:08:46,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502933666] [2021-06-05 20:08:46,150 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:08:46,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:46,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:08:46,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:08:46,151 INFO L87 Difference]: Start difference. First operand 3620 states and 9280 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:47,079 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-06-05 20:08:47,510 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-06-05 20:08:47,716 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2021-06-05 20:08:48,091 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 20:08:48,242 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 20:08:48,451 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-06-05 20:08:49,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:49,230 INFO L93 Difference]: Finished difference Result 3971 states and 9972 transitions. [2021-06-05 20:08:49,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 20:08:49,230 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:08:49,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:49,234 INFO L225 Difference]: With dead ends: 3971 [2021-06-05 20:08:49,235 INFO L226 Difference]: Without dead ends: 3737 [2021-06-05 20:08:49,236 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 2786.2ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 20:08:49,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3737 states. [2021-06-05 20:08:49,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3737 to 3624. [2021-06-05 20:08:49,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3623 states have (on average 2.5630692796025394) internal successors, (9286), 3623 states have internal predecessors, (9286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:49,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 9286 transitions. [2021-06-05 20:08:49,296 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 9286 transitions. Word has length 119 [2021-06-05 20:08:49,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:49,296 INFO L482 AbstractCegarLoop]: Abstraction has 3624 states and 9286 transitions. [2021-06-05 20:08:49,296 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:49,296 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 9286 transitions. [2021-06-05 20:08:49,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:08:49,301 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:49,301 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:08:49,301 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-06-05 20:08:49,301 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:49,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:49,301 INFO L82 PathProgramCache]: Analyzing trace with hash -975682845, now seen corresponding path program 90 times [2021-06-05 20:08:49,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:49,301 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624404962] [2021-06-05 20:08:49,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:50,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:50,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:50,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624404962] [2021-06-05 20:08:50,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624404962] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:50,197 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:50,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:08:50,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283663808] [2021-06-05 20:08:50,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:08:50,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:50,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:08:50,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:08:50,198 INFO L87 Difference]: Start difference. First operand 3624 states and 9286 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:51,137 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-06-05 20:08:51,567 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-06-05 20:08:51,776 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2021-06-05 20:08:51,959 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 20:08:52,118 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 20:08:53,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:53,143 INFO L93 Difference]: Finished difference Result 3853 states and 9720 transitions. [2021-06-05 20:08:53,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:08:53,144 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:08:53,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:53,148 INFO L225 Difference]: With dead ends: 3853 [2021-06-05 20:08:53,148 INFO L226 Difference]: Without dead ends: 3624 [2021-06-05 20:08:53,148 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2696.3ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:08:53,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3624 states. [2021-06-05 20:08:53,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3624 to 3608. [2021-06-05 20:08:53,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3608 states, 3607 states have (on average 2.5650124757416135) internal successors, (9252), 3607 states have internal predecessors, (9252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:53,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3608 states to 3608 states and 9252 transitions. [2021-06-05 20:08:53,202 INFO L78 Accepts]: Start accepts. Automaton has 3608 states and 9252 transitions. Word has length 119 [2021-06-05 20:08:53,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:53,202 INFO L482 AbstractCegarLoop]: Abstraction has 3608 states and 9252 transitions. [2021-06-05 20:08:53,202 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:53,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3608 states and 9252 transitions. [2021-06-05 20:08:53,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:08:53,206 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:53,206 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:08:53,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-06-05 20:08:53,206 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:53,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:53,206 INFO L82 PathProgramCache]: Analyzing trace with hash 2036752141, now seen corresponding path program 91 times [2021-06-05 20:08:53,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:53,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060476729] [2021-06-05 20:08:53,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:53,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:53,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:53,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060476729] [2021-06-05 20:08:53,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060476729] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:53,987 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:53,987 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:08:53,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221128791] [2021-06-05 20:08:53,987 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:08:53,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:53,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:08:53,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:08:53,988 INFO L87 Difference]: Start difference. First operand 3608 states and 9252 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:55,017 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:08:55,343 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-06-05 20:08:56,264 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2021-06-05 20:08:56,429 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2021-06-05 20:08:56,659 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2021-06-05 20:08:57,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:57,495 INFO L93 Difference]: Finished difference Result 4193 states and 10572 transitions. [2021-06-05 20:08:57,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 20:08:57,495 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:08:57,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:57,529 INFO L225 Difference]: With dead ends: 4193 [2021-06-05 20:08:57,529 INFO L226 Difference]: Without dead ends: 3959 [2021-06-05 20:08:57,530 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 2977.2ms TimeCoverageRelationStatistics Valid=460, Invalid=2402, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:08:57,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3959 states. [2021-06-05 20:08:57,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3959 to 3644. [2021-06-05 20:08:57,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3644 states, 3643 states have (on average 2.5632720285479) internal successors, (9338), 3643 states have internal predecessors, (9338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:57,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 9338 transitions. [2021-06-05 20:08:57,583 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 9338 transitions. Word has length 119 [2021-06-05 20:08:57,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:57,583 INFO L482 AbstractCegarLoop]: Abstraction has 3644 states and 9338 transitions. [2021-06-05 20:08:57,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:57,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 9338 transitions. [2021-06-05 20:08:57,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:08:57,587 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:57,587 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:08:57,588 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-06-05 20:08:57,588 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:57,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:57,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1276480877, now seen corresponding path program 92 times [2021-06-05 20:08:57,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:57,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251283189] [2021-06-05 20:08:57,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:58,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:58,420 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:58,421 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251283189] [2021-06-05 20:08:58,421 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251283189] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:58,421 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:58,421 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:08:58,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085489205] [2021-06-05 20:08:58,421 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:08:58,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:58,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:08:58,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:08:58,422 INFO L87 Difference]: Start difference. First operand 3644 states and 9338 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:59,431 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-06-05 20:08:59,765 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:09:01,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:01,748 INFO L93 Difference]: Finished difference Result 4573 states and 11563 transitions. [2021-06-05 20:09:01,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 20:09:01,748 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:09:01,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:01,752 INFO L225 Difference]: With dead ends: 4573 [2021-06-05 20:09:01,752 INFO L226 Difference]: Without dead ends: 4364 [2021-06-05 20:09:01,752 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 2712.2ms TimeCoverageRelationStatistics Valid=463, Invalid=2399, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:09:01,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4364 states. [2021-06-05 20:09:01,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4364 to 3980. [2021-06-05 20:09:01,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 3979 states have (on average 2.5569238502136216) internal successors, (10174), 3979 states have internal predecessors, (10174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:01,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 10174 transitions. [2021-06-05 20:09:01,811 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 10174 transitions. Word has length 119 [2021-06-05 20:09:01,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:01,811 INFO L482 AbstractCegarLoop]: Abstraction has 3980 states and 10174 transitions. [2021-06-05 20:09:01,812 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:01,812 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 10174 transitions. [2021-06-05 20:09:01,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:09:01,816 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:01,816 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:09:01,816 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-06-05 20:09:01,816 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:01,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:01,816 INFO L82 PathProgramCache]: Analyzing trace with hash 801774575, now seen corresponding path program 93 times [2021-06-05 20:09:01,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:01,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741937463] [2021-06-05 20:09:01,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:02,221 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2021-06-05 20:09:02,429 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-06-05 20:09:02,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:02,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:02,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741937463] [2021-06-05 20:09:02,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741937463] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:02,980 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:02,980 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:09:02,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490193083] [2021-06-05 20:09:02,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:09:02,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:02,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:09:02,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:09:02,981 INFO L87 Difference]: Start difference. First operand 3980 states and 10174 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:04,005 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:09:04,332 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-06-05 20:09:04,738 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-06-05 20:09:05,146 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-06-05 20:09:05,730 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-06-05 20:09:06,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:06,786 INFO L93 Difference]: Finished difference Result 5025 states and 12583 transitions. [2021-06-05 20:09:06,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 20:09:06,786 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:09:06,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:06,790 INFO L225 Difference]: With dead ends: 5025 [2021-06-05 20:09:06,790 INFO L226 Difference]: Without dead ends: 3916 [2021-06-05 20:09:06,790 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 3501.2ms TimeCoverageRelationStatistics Valid=524, Invalid=2782, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 20:09:06,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2021-06-05 20:09:06,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3524. [2021-06-05 20:09:06,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 3523 states have (on average 2.551234743116662) internal successors, (8988), 3523 states have internal predecessors, (8988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:06,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 8988 transitions. [2021-06-05 20:09:06,840 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 8988 transitions. Word has length 119 [2021-06-05 20:09:06,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:06,840 INFO L482 AbstractCegarLoop]: Abstraction has 3524 states and 8988 transitions. [2021-06-05 20:09:06,840 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:06,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 8988 transitions. [2021-06-05 20:09:06,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:09:06,844 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:06,844 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:09:06,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-06-05 20:09:06,844 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:06,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:06,844 INFO L82 PathProgramCache]: Analyzing trace with hash -675343967, now seen corresponding path program 94 times [2021-06-05 20:09:06,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:06,845 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660323397] [2021-06-05 20:09:06,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:07,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:07,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:07,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660323397] [2021-06-05 20:09:07,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660323397] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:07,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:07,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:09:07,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654545646] [2021-06-05 20:09:07,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:09:07,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:07,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:09:07,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:09:07,672 INFO L87 Difference]: Start difference. First operand 3524 states and 8988 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:08,693 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:09:09,028 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-06-05 20:09:09,541 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-06-05 20:09:09,980 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 20:09:10,297 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 20:09:10,534 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 20:09:11,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:11,363 INFO L93 Difference]: Finished difference Result 3863 states and 9658 transitions. [2021-06-05 20:09:11,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:09:11,363 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:09:11,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:11,367 INFO L225 Difference]: With dead ends: 3863 [2021-06-05 20:09:11,367 INFO L226 Difference]: Without dead ends: 3629 [2021-06-05 20:09:11,367 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 3137.5ms TimeCoverageRelationStatistics Valid=485, Invalid=2485, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:09:11,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3629 states. [2021-06-05 20:09:11,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3629 to 3528. [2021-06-05 20:09:11,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 3527 states have (on average 2.550042529061525) internal successors, (8994), 3527 states have internal predecessors, (8994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:11,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 8994 transitions. [2021-06-05 20:09:11,418 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 8994 transitions. Word has length 119 [2021-06-05 20:09:11,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:11,419 INFO L482 AbstractCegarLoop]: Abstraction has 3528 states and 8994 transitions. [2021-06-05 20:09:11,419 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:11,419 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 8994 transitions. [2021-06-05 20:09:11,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:09:11,422 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:11,423 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:09:11,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-06-05 20:09:11,423 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:11,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:11,423 INFO L82 PathProgramCache]: Analyzing trace with hash -617262355, now seen corresponding path program 95 times [2021-06-05 20:09:11,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:11,423 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360609170] [2021-06-05 20:09:11,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:12,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:12,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:12,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360609170] [2021-06-05 20:09:12,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360609170] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:12,160 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:12,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:09:12,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943901886] [2021-06-05 20:09:12,160 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:09:12,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:12,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:09:12,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:09:12,161 INFO L87 Difference]: Start difference. First operand 3528 states and 8994 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:13,238 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:09:13,601 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-06-05 20:09:14,082 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-06-05 20:09:14,241 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-05 20:09:14,495 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 20:09:15,326 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-06-05 20:09:15,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:15,735 INFO L93 Difference]: Finished difference Result 3749 states and 9412 transitions. [2021-06-05 20:09:15,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 20:09:15,735 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:09:15,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:15,739 INFO L225 Difference]: With dead ends: 3749 [2021-06-05 20:09:15,739 INFO L226 Difference]: Without dead ends: 3532 [2021-06-05 20:09:15,740 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 3077.2ms TimeCoverageRelationStatistics Valid=480, Invalid=2382, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:09:15,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3532 states. [2021-06-05 20:09:15,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3532 to 3524. [2021-06-05 20:09:15,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 3523 states have (on average 2.55066704513199) internal successors, (8986), 3523 states have internal predecessors, (8986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:15,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 8986 transitions. [2021-06-05 20:09:15,790 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 8986 transitions. Word has length 119 [2021-06-05 20:09:15,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:15,790 INFO L482 AbstractCegarLoop]: Abstraction has 3524 states and 8986 transitions. [2021-06-05 20:09:15,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:15,790 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 8986 transitions. [2021-06-05 20:09:15,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:09:15,794 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:15,794 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:09:15,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-06-05 20:09:15,794 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:15,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:15,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1217956447, now seen corresponding path program 96 times [2021-06-05 20:09:15,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:15,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644466863] [2021-06-05 20:09:15,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:16,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:16,644 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:16,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644466863] [2021-06-05 20:09:16,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644466863] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:16,644 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:16,644 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:09:16,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803447032] [2021-06-05 20:09:16,644 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:09:16,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:16,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:09:16,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:09:16,645 INFO L87 Difference]: Start difference. First operand 3524 states and 8986 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:17,371 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2021-06-05 20:09:17,681 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:09:18,008 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-06-05 20:09:18,192 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:09:20,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:20,029 INFO L93 Difference]: Finished difference Result 4011 states and 10071 transitions. [2021-06-05 20:09:20,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:09:20,030 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:09:20,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:20,033 INFO L225 Difference]: With dead ends: 4011 [2021-06-05 20:09:20,034 INFO L226 Difference]: Without dead ends: 3802 [2021-06-05 20:09:20,034 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 2902.3ms TimeCoverageRelationStatistics Valid=485, Invalid=2485, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:09:20,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2021-06-05 20:09:20,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3668. [2021-06-05 20:09:20,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3667 states have (on average 2.547586583037906) internal successors, (9342), 3667 states have internal predecessors, (9342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:20,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 9342 transitions. [2021-06-05 20:09:20,087 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 9342 transitions. Word has length 119 [2021-06-05 20:09:20,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:20,087 INFO L482 AbstractCegarLoop]: Abstraction has 3668 states and 9342 transitions. [2021-06-05 20:09:20,087 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:20,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 9342 transitions. [2021-06-05 20:09:20,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:09:20,091 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:20,091 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:09:20,091 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-06-05 20:09:20,091 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:20,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:20,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1692662749, now seen corresponding path program 97 times [2021-06-05 20:09:20,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:20,091 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060313183] [2021-06-05 20:09:20,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:20,593 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-06-05 20:09:20,839 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 20 [2021-06-05 20:09:21,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:21,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:21,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060313183] [2021-06-05 20:09:21,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060313183] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:21,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:21,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:09:21,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578296569] [2021-06-05 20:09:21,588 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:09:21,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:21,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:09:21,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:09:21,589 INFO L87 Difference]: Start difference. First operand 3668 states and 9342 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:22,242 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2021-06-05 20:09:22,911 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:09:23,237 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-06-05 20:09:23,417 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:09:25,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:25,536 INFO L93 Difference]: Finished difference Result 4283 states and 10647 transitions. [2021-06-05 20:09:25,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:09:25,537 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:09:25,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:25,540 INFO L225 Difference]: With dead ends: 4283 [2021-06-05 20:09:25,541 INFO L226 Difference]: Without dead ends: 3294 [2021-06-05 20:09:25,541 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 3949.1ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:09:25,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2021-06-05 20:09:25,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3116. [2021-06-05 20:09:25,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 2.5495987158908506) internal successors, (7942), 3115 states have internal predecessors, (7942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:25,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 7942 transitions. [2021-06-05 20:09:25,592 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 7942 transitions. Word has length 119 [2021-06-05 20:09:25,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:25,593 INFO L482 AbstractCegarLoop]: Abstraction has 3116 states and 7942 transitions. [2021-06-05 20:09:25,593 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:25,593 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 7942 transitions. [2021-06-05 20:09:25,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:09:25,597 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:25,597 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:09:25,597 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-06-05 20:09:25,597 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:25,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:25,597 INFO L82 PathProgramCache]: Analyzing trace with hash -2136727411, now seen corresponding path program 98 times [2021-06-05 20:09:25,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:25,597 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449818957] [2021-06-05 20:09:25,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:26,186 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2021-06-05 20:09:26,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:26,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:26,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449818957] [2021-06-05 20:09:26,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449818957] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:26,820 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:26,820 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:09:26,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580472029] [2021-06-05 20:09:26,820 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:09:26,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:26,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:09:26,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:09:26,820 INFO L87 Difference]: Start difference. First operand 3116 states and 7942 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:27,714 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2021-06-05 20:09:27,861 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:09:28,192 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-06-05 20:09:28,381 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:09:28,946 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-05 20:09:30,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:30,319 INFO L93 Difference]: Finished difference Result 3337 states and 8360 transitions. [2021-06-05 20:09:30,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 20:09:30,319 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:09:30,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:30,322 INFO L225 Difference]: With dead ends: 3337 [2021-06-05 20:09:30,323 INFO L226 Difference]: Without dead ends: 3004 [2021-06-05 20:09:30,323 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 3375.9ms TimeCoverageRelationStatistics Valid=480, Invalid=2382, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:09:30,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3004 states. [2021-06-05 20:09:30,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3004 to 2996. [2021-06-05 20:09:30,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2996 states, 2995 states have (on average 2.5742904841402336) internal successors, (7710), 2995 states have internal predecessors, (7710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:30,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2996 states to 2996 states and 7710 transitions. [2021-06-05 20:09:30,368 INFO L78 Accepts]: Start accepts. Automaton has 2996 states and 7710 transitions. Word has length 119 [2021-06-05 20:09:30,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:30,368 INFO L482 AbstractCegarLoop]: Abstraction has 2996 states and 7710 transitions. [2021-06-05 20:09:30,368 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:30,368 INFO L276 IsEmpty]: Start isEmpty. Operand 2996 states and 7710 transitions. [2021-06-05 20:09:30,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:09:30,371 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:30,371 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:09:30,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-06-05 20:09:30,372 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:30,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:30,372 INFO L82 PathProgramCache]: Analyzing trace with hash -148470063, now seen corresponding path program 99 times [2021-06-05 20:09:30,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:30,372 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459601992] [2021-06-05 20:09:30,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:31,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:31,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:31,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459601992] [2021-06-05 20:09:31,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459601992] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:31,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:31,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:09:31,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237421159] [2021-06-05 20:09:31,208 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:09:31,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:31,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:09:31,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:09:31,209 INFO L87 Difference]: Start difference. First operand 2996 states and 7710 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:32,208 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:09:32,630 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2021-06-05 20:09:32,823 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-06-05 20:09:33,089 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-06-05 20:09:34,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:34,255 INFO L93 Difference]: Finished difference Result 3221 states and 8141 transitions. [2021-06-05 20:09:34,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:09:34,255 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:09:34,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:34,258 INFO L225 Difference]: With dead ends: 3221 [2021-06-05 20:09:34,258 INFO L226 Difference]: Without dead ends: 2964 [2021-06-05 20:09:34,259 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 2677.4ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:09:34,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2021-06-05 20:09:34,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2964. [2021-06-05 20:09:34,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2964 states, 2963 states have (on average 2.5818427269659128) internal successors, (7650), 2963 states have internal predecessors, (7650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:34,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 7650 transitions. [2021-06-05 20:09:34,347 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 7650 transitions. Word has length 119 [2021-06-05 20:09:34,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:34,347 INFO L482 AbstractCegarLoop]: Abstraction has 2964 states and 7650 transitions. [2021-06-05 20:09:34,347 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:34,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 7650 transitions. [2021-06-05 20:09:34,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:09:34,350 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:34,350 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:09:34,350 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-06-05 20:09:34,350 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:34,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:34,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1962623843, now seen corresponding path program 100 times [2021-06-05 20:09:34,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:34,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574099918] [2021-06-05 20:09:34,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:35,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:35,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:35,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574099918] [2021-06-05 20:09:35,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574099918] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:35,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:35,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:09:35,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129029220] [2021-06-05 20:09:35,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:09:35,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:35,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:09:35,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:09:35,219 INFO L87 Difference]: Start difference. First operand 2964 states and 7650 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:36,470 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2021-06-05 20:09:36,630 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-06-05 20:09:36,845 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 20:09:37,139 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-05 20:09:38,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:38,388 INFO L93 Difference]: Finished difference Result 3277 states and 8257 transitions. [2021-06-05 20:09:38,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:09:38,389 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:09:38,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:38,391 INFO L225 Difference]: With dead ends: 3277 [2021-06-05 20:09:38,391 INFO L226 Difference]: Without dead ends: 3052 [2021-06-05 20:09:38,391 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 2821.2ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:09:38,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3052 states. [2021-06-05 20:09:38,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3052 to 2988. [2021-06-05 20:09:38,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2987 states have (on average 2.575828590559089) internal successors, (7694), 2987 states have internal predecessors, (7694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:38,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 7694 transitions. [2021-06-05 20:09:38,432 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 7694 transitions. Word has length 119 [2021-06-05 20:09:38,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:38,433 INFO L482 AbstractCegarLoop]: Abstraction has 2988 states and 7694 transitions. [2021-06-05 20:09:38,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:38,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 7694 transitions. [2021-06-05 20:09:38,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:09:38,436 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:38,436 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:09:38,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-06-05 20:09:38,436 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:38,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:38,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1812982683, now seen corresponding path program 101 times [2021-06-05 20:09:38,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:38,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092326149] [2021-06-05 20:09:38,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:39,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:39,262 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:39,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092326149] [2021-06-05 20:09:39,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092326149] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:39,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:39,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:09:39,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538772822] [2021-06-05 20:09:39,262 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:09:39,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:39,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:09:39,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:09:39,263 INFO L87 Difference]: Start difference. First operand 2988 states and 7694 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:40,605 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-06-05 20:09:40,760 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 20:09:41,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:41,929 INFO L93 Difference]: Finished difference Result 3257 states and 8215 transitions. [2021-06-05 20:09:41,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 20:09:41,930 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:09:41,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:41,932 INFO L225 Difference]: With dead ends: 3257 [2021-06-05 20:09:41,932 INFO L226 Difference]: Without dead ends: 3044 [2021-06-05 20:09:41,932 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 2510.7ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:09:41,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2021-06-05 20:09:41,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 2992. [2021-06-05 20:09:41,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2992 states, 2991 states have (on average 2.5743898361751922) internal successors, (7700), 2991 states have internal predecessors, (7700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:41,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 7700 transitions. [2021-06-05 20:09:41,964 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 7700 transitions. Word has length 119 [2021-06-05 20:09:41,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:41,965 INFO L482 AbstractCegarLoop]: Abstraction has 2992 states and 7700 transitions. [2021-06-05 20:09:41,965 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:41,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 7700 transitions. [2021-06-05 20:09:41,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:09:41,967 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:41,967 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:09:41,967 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-06-05 20:09:41,967 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:41,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:41,967 INFO L82 PathProgramCache]: Analyzing trace with hash 166869121, now seen corresponding path program 102 times [2021-06-05 20:09:41,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:41,968 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900502978] [2021-06-05 20:09:41,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:42,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:42,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:42,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900502978] [2021-06-05 20:09:42,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900502978] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:42,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:42,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:09:42,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257094623] [2021-06-05 20:09:42,685 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:09:42,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:42,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:09:42,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:09:42,685 INFO L87 Difference]: Start difference. First operand 2992 states and 7700 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:43,989 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-06-05 20:09:45,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:45,224 INFO L93 Difference]: Finished difference Result 3359 states and 8437 transitions. [2021-06-05 20:09:45,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 20:09:45,224 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:09:45,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:45,227 INFO L225 Difference]: With dead ends: 3359 [2021-06-05 20:09:45,227 INFO L226 Difference]: Without dead ends: 3109 [2021-06-05 20:09:45,227 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 2330.5ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 20:09:45,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2021-06-05 20:09:45,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2976. [2021-06-05 20:09:45,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2975 states have (on average 2.5788235294117645) internal successors, (7672), 2975 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:45,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 7672 transitions. [2021-06-05 20:09:45,256 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 7672 transitions. Word has length 119 [2021-06-05 20:09:45,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:45,256 INFO L482 AbstractCegarLoop]: Abstraction has 2976 states and 7672 transitions. [2021-06-05 20:09:45,256 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:45,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 7672 transitions. [2021-06-05 20:09:45,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:09:45,259 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:45,259 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:09:45,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-06-05 20:09:45,259 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:45,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:45,259 INFO L82 PathProgramCache]: Analyzing trace with hash 207914029, now seen corresponding path program 103 times [2021-06-05 20:09:45,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:45,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387163988] [2021-06-05 20:09:45,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:45,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:45,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:45,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387163988] [2021-06-05 20:09:45,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387163988] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:45,905 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:45,905 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:09:45,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893904619] [2021-06-05 20:09:45,905 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:09:45,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:45,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:09:45,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:09:45,905 INFO L87 Difference]: Start difference. First operand 2976 states and 7672 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:47,138 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-06-05 20:09:47,352 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-06-05 20:09:48,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:48,365 INFO L93 Difference]: Finished difference Result 3241 states and 8172 transitions. [2021-06-05 20:09:48,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:09:48,365 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:09:48,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:48,367 INFO L225 Difference]: With dead ends: 3241 [2021-06-05 20:09:48,367 INFO L226 Difference]: Without dead ends: 3008 [2021-06-05 20:09:48,368 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2126.3ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:09:48,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2021-06-05 20:09:48,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2968. [2021-06-05 20:09:48,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2968 states, 2967 states have (on average 2.5803842264914056) internal successors, (7656), 2967 states have internal predecessors, (7656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:48,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 7656 transitions. [2021-06-05 20:09:48,397 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 7656 transitions. Word has length 119 [2021-06-05 20:09:48,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:48,397 INFO L482 AbstractCegarLoop]: Abstraction has 2968 states and 7656 transitions. [2021-06-05 20:09:48,397 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:48,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 7656 transitions. [2021-06-05 20:09:48,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:09:48,399 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:48,399 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:09:48,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-06-05 20:09:48,400 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:48,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:48,400 INFO L82 PathProgramCache]: Analyzing trace with hash -2020464481, now seen corresponding path program 104 times [2021-06-05 20:09:48,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:48,400 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199120267] [2021-06-05 20:09:48,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:49,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:49,045 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:49,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199120267] [2021-06-05 20:09:49,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199120267] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:49,045 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:49,045 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:09:49,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036838089] [2021-06-05 20:09:49,045 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:09:49,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:49,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:09:49,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:09:49,046 INFO L87 Difference]: Start difference. First operand 2968 states and 7656 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:50,338 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-05 20:09:50,626 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-06-05 20:09:51,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:51,604 INFO L93 Difference]: Finished difference Result 3233 states and 8171 transitions. [2021-06-05 20:09:51,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:09:51,604 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:09:51,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:51,607 INFO L225 Difference]: With dead ends: 3233 [2021-06-05 20:09:51,607 INFO L226 Difference]: Without dead ends: 3008 [2021-06-05 20:09:51,607 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 2238.0ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:09:51,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2021-06-05 20:09:51,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2976. [2021-06-05 20:09:51,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2975 states have (on average 2.5788235294117645) internal successors, (7672), 2975 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:51,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 7672 transitions. [2021-06-05 20:09:51,639 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 7672 transitions. Word has length 119 [2021-06-05 20:09:51,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:51,639 INFO L482 AbstractCegarLoop]: Abstraction has 2976 states and 7672 transitions. [2021-06-05 20:09:51,639 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:51,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 7672 transitions. [2021-06-05 20:09:51,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:09:51,642 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:51,642 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:09:51,642 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-06-05 20:09:51,642 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:51,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:51,642 INFO L82 PathProgramCache]: Analyzing trace with hash -894055897, now seen corresponding path program 105 times [2021-06-05 20:09:51,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:51,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890547592] [2021-06-05 20:09:51,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:52,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:52,330 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:52,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890547592] [2021-06-05 20:09:52,330 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890547592] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:52,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:52,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:09:52,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496702897] [2021-06-05 20:09:52,331 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:09:52,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:52,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:09:52,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:09:52,331 INFO L87 Difference]: Start difference. First operand 2976 states and 7672 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:53,505 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-06-05 20:09:53,712 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 20:09:54,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:54,611 INFO L93 Difference]: Finished difference Result 3221 states and 8142 transitions. [2021-06-05 20:09:54,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:09:54,611 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:09:54,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:54,613 INFO L225 Difference]: With dead ends: 3221 [2021-06-05 20:09:54,613 INFO L226 Difference]: Without dead ends: 2992 [2021-06-05 20:09:54,613 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2092.6ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:09:54,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2021-06-05 20:09:54,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 2984. [2021-06-05 20:09:54,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2984 states, 2983 states have (on average 2.5745893395910158) internal successors, (7680), 2983 states have internal predecessors, (7680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:54,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2984 states to 2984 states and 7680 transitions. [2021-06-05 20:09:54,644 INFO L78 Accepts]: Start accepts. Automaton has 2984 states and 7680 transitions. Word has length 119 [2021-06-05 20:09:54,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:54,644 INFO L482 AbstractCegarLoop]: Abstraction has 2984 states and 7680 transitions. [2021-06-05 20:09:54,644 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:54,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2984 states and 7680 transitions. [2021-06-05 20:09:54,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:09:54,646 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:54,647 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:09:54,647 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-06-05 20:09:54,647 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:54,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:54,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1550755139, now seen corresponding path program 106 times [2021-06-05 20:09:54,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:54,647 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193089882] [2021-06-05 20:09:54,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:55,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:55,309 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:55,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193089882] [2021-06-05 20:09:55,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193089882] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:55,309 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:55,309 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:09:55,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305790429] [2021-06-05 20:09:55,310 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:09:55,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:55,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:09:55,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:09:55,310 INFO L87 Difference]: Start difference. First operand 2984 states and 7680 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:57,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:57,739 INFO L93 Difference]: Finished difference Result 3319 states and 8344 transitions. [2021-06-05 20:09:57,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 20:09:57,740 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:09:57,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:57,742 INFO L225 Difference]: With dead ends: 3319 [2021-06-05 20:09:57,742 INFO L226 Difference]: Without dead ends: 3085 [2021-06-05 20:09:57,743 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 2164.7ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 20:09:57,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2021-06-05 20:09:57,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 2988. [2021-06-05 20:09:57,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2987 states have (on average 2.573150318044861) internal successors, (7686), 2987 states have internal predecessors, (7686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:57,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 7686 transitions. [2021-06-05 20:09:57,774 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 7686 transitions. Word has length 119 [2021-06-05 20:09:57,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:57,774 INFO L482 AbstractCegarLoop]: Abstraction has 2988 states and 7686 transitions. [2021-06-05 20:09:57,774 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:57,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 7686 transitions. [2021-06-05 20:09:57,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:09:57,776 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:57,777 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:09:57,777 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-06-05 20:09:57,777 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:57,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:57,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1964523535, now seen corresponding path program 107 times [2021-06-05 20:09:57,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:57,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897776740] [2021-06-05 20:09:57,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:58,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:58,465 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:58,465 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897776740] [2021-06-05 20:09:58,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897776740] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:58,465 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:58,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:09:58,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761423912] [2021-06-05 20:09:58,466 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:09:58,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:58,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:09:58,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:09:58,466 INFO L87 Difference]: Start difference. First operand 2988 states and 7686 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:59,748 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2021-06-05 20:09:59,883 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 20:10:00,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:00,804 INFO L93 Difference]: Finished difference Result 3201 states and 8092 transitions. [2021-06-05 20:10:00,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:10:00,805 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:00,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:00,807 INFO L225 Difference]: With dead ends: 3201 [2021-06-05 20:10:00,807 INFO L226 Difference]: Without dead ends: 2940 [2021-06-05 20:10:00,807 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2085.1ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:10:00,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2021-06-05 20:10:00,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2940. [2021-06-05 20:10:00,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2940 states, 2939 states have (on average 2.586594079618918) internal successors, (7602), 2939 states have internal predecessors, (7602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:00,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 7602 transitions. [2021-06-05 20:10:00,837 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 7602 transitions. Word has length 119 [2021-06-05 20:10:00,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:00,837 INFO L482 AbstractCegarLoop]: Abstraction has 2940 states and 7602 transitions. [2021-06-05 20:10:00,837 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:00,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 7602 transitions. [2021-06-05 20:10:00,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:00,839 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:00,839 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:00,839 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-06-05 20:10:00,839 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:00,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:00,839 INFO L82 PathProgramCache]: Analyzing trace with hash -12675855, now seen corresponding path program 108 times [2021-06-05 20:10:00,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:00,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617323964] [2021-06-05 20:10:00,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:01,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:01,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:01,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617323964] [2021-06-05 20:10:01,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617323964] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:01,552 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:01,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:10:01,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616001966] [2021-06-05 20:10:01,552 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:10:01,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:01,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:10:01,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:10:01,552 INFO L87 Difference]: Start difference. First operand 2940 states and 7602 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:02,588 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2021-06-05 20:10:02,737 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-06-05 20:10:02,943 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-06-05 20:10:03,124 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 20:10:03,397 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-05 20:10:04,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:04,481 INFO L93 Difference]: Finished difference Result 3255 states and 8264 transitions. [2021-06-05 20:10:04,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:10:04,481 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:04,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:04,484 INFO L225 Difference]: With dead ends: 3255 [2021-06-05 20:10:04,484 INFO L226 Difference]: Without dead ends: 3102 [2021-06-05 20:10:04,484 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2609.8ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:10:04,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2021-06-05 20:10:04,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 2980. [2021-06-05 20:10:04,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2979 states have (on average 2.582074521651561) internal successors, (7692), 2979 states have internal predecessors, (7692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:04,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 7692 transitions. [2021-06-05 20:10:04,518 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 7692 transitions. Word has length 119 [2021-06-05 20:10:04,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:04,518 INFO L482 AbstractCegarLoop]: Abstraction has 2980 states and 7692 transitions. [2021-06-05 20:10:04,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:04,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 7692 transitions. [2021-06-05 20:10:04,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:04,521 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:04,521 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:04,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-06-05 20:10:04,521 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:04,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:04,521 INFO L82 PathProgramCache]: Analyzing trace with hash 506684915, now seen corresponding path program 109 times [2021-06-05 20:10:04,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:04,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37409187] [2021-06-05 20:10:04,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:05,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:05,343 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:05,343 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37409187] [2021-06-05 20:10:05,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37409187] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:05,343 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:05,343 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:10:05,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659904417] [2021-06-05 20:10:05,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:10:05,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:05,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:10:05,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:10:05,344 INFO L87 Difference]: Start difference. First operand 2980 states and 7692 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:06,562 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-06-05 20:10:06,763 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-06-05 20:10:07,042 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-06-05 20:10:07,243 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 20:10:07,516 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 20:10:07,953 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-06-05 20:10:08,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:08,721 INFO L93 Difference]: Finished difference Result 3251 states and 8252 transitions. [2021-06-05 20:10:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 20:10:08,722 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:08,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:08,725 INFO L225 Difference]: With dead ends: 3251 [2021-06-05 20:10:08,725 INFO L226 Difference]: Without dead ends: 3104 [2021-06-05 20:10:08,726 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 3014.8ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:10:08,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2021-06-05 20:10:08,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 2982. [2021-06-05 20:10:08,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2982 states, 2981 states have (on average 2.581348540758135) internal successors, (7695), 2981 states have internal predecessors, (7695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:08,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2982 states to 2982 states and 7695 transitions. [2021-06-05 20:10:08,772 INFO L78 Accepts]: Start accepts. Automaton has 2982 states and 7695 transitions. Word has length 119 [2021-06-05 20:10:08,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:08,772 INFO L482 AbstractCegarLoop]: Abstraction has 2982 states and 7695 transitions. [2021-06-05 20:10:08,772 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:08,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2982 states and 7695 transitions. [2021-06-05 20:10:08,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:08,776 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:08,776 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:08,776 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-06-05 20:10:08,776 INFO L430 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:08,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:08,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1808430577, now seen corresponding path program 110 times [2021-06-05 20:10:08,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:08,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173118292] [2021-06-05 20:10:08,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:09,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:09,634 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:09,634 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173118292] [2021-06-05 20:10:09,634 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173118292] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:09,634 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:09,634 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:10:09,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880810954] [2021-06-05 20:10:09,634 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:10:09,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:09,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:10:09,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:10:09,635 INFO L87 Difference]: Start difference. First operand 2982 states and 7695 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:11,045 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-06-05 20:10:12,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:12,429 INFO L93 Difference]: Finished difference Result 3260 states and 8272 transitions. [2021-06-05 20:10:12,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 20:10:12,429 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:12,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:12,432 INFO L225 Difference]: With dead ends: 3260 [2021-06-05 20:10:12,432 INFO L226 Difference]: Without dead ends: 3092 [2021-06-05 20:10:12,433 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2482.4ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 20:10:12,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3092 states. [2021-06-05 20:10:12,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3092 to 2974. [2021-06-05 20:10:12,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 2973 states have (on average 2.580894719138917) internal successors, (7673), 2973 states have internal predecessors, (7673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:12,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 7673 transitions. [2021-06-05 20:10:12,466 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 7673 transitions. Word has length 119 [2021-06-05 20:10:12,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:12,466 INFO L482 AbstractCegarLoop]: Abstraction has 2974 states and 7673 transitions. [2021-06-05 20:10:12,466 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:12,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 7673 transitions. [2021-06-05 20:10:12,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:12,468 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:12,468 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:12,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-06-05 20:10:12,468 INFO L430 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:12,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:12,469 INFO L82 PathProgramCache]: Analyzing trace with hash -930245393, now seen corresponding path program 111 times [2021-06-05 20:10:12,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:12,469 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180904963] [2021-06-05 20:10:12,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:13,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:13,331 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:13,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180904963] [2021-06-05 20:10:13,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180904963] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:13,331 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:13,331 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:10:13,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741678127] [2021-06-05 20:10:13,331 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:10:13,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:13,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:10:13,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:10:13,332 INFO L87 Difference]: Start difference. First operand 2974 states and 7673 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:14,519 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-06-05 20:10:14,732 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-06-05 20:10:15,053 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-06-05 20:10:15,252 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 20:10:15,559 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 20:10:15,699 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 20:10:16,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:16,803 INFO L93 Difference]: Finished difference Result 3293 states and 8348 transitions. [2021-06-05 20:10:16,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:10:16,803 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:16,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:16,807 INFO L225 Difference]: With dead ends: 3293 [2021-06-05 20:10:16,807 INFO L226 Difference]: Without dead ends: 3146 [2021-06-05 20:10:16,807 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 3198.3ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:10:16,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2021-06-05 20:10:16,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 2982. [2021-06-05 20:10:16,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2982 states, 2981 states have (on average 2.580006709158001) internal successors, (7691), 2981 states have internal predecessors, (7691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:16,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2982 states to 2982 states and 7691 transitions. [2021-06-05 20:10:16,850 INFO L78 Accepts]: Start accepts. Automaton has 2982 states and 7691 transitions. Word has length 119 [2021-06-05 20:10:16,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:16,850 INFO L482 AbstractCegarLoop]: Abstraction has 2982 states and 7691 transitions. [2021-06-05 20:10:16,850 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:16,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2982 states and 7691 transitions. [2021-06-05 20:10:16,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:16,853 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:16,853 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:16,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-06-05 20:10:16,853 INFO L430 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:16,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:16,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1049606411, now seen corresponding path program 112 times [2021-06-05 20:10:16,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:16,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385880806] [2021-06-05 20:10:16,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:17,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:17,795 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:17,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385880806] [2021-06-05 20:10:17,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385880806] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:17,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:17,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:10:17,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729592255] [2021-06-05 20:10:17,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:10:17,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:17,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:10:17,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:10:17,796 INFO L87 Difference]: Start difference. First operand 2982 states and 7691 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:19,035 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-06-05 20:10:19,247 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-06-05 20:10:19,540 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-06-05 20:10:19,909 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 20:10:20,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:20,984 INFO L93 Difference]: Finished difference Result 3306 states and 8376 transitions. [2021-06-05 20:10:20,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:10:20,985 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:20,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:20,988 INFO L225 Difference]: With dead ends: 3306 [2021-06-05 20:10:20,988 INFO L226 Difference]: Without dead ends: 3144 [2021-06-05 20:10:20,988 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 2926.0ms TimeCoverageRelationStatistics Valid=483, Invalid=2487, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:10:20,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2021-06-05 20:10:21,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2980. [2021-06-05 20:10:21,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2979 states have (on average 2.580060422960725) internal successors, (7686), 2979 states have internal predecessors, (7686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:21,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 7686 transitions. [2021-06-05 20:10:21,019 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 7686 transitions. Word has length 119 [2021-06-05 20:10:21,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:21,019 INFO L482 AbstractCegarLoop]: Abstraction has 2980 states and 7686 transitions. [2021-06-05 20:10:21,019 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:21,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 7686 transitions. [2021-06-05 20:10:21,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:21,036 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:21,036 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:21,036 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-06-05 20:10:21,036 INFO L430 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:21,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:21,037 INFO L82 PathProgramCache]: Analyzing trace with hash -260017391, now seen corresponding path program 113 times [2021-06-05 20:10:21,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:21,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300976773] [2021-06-05 20:10:21,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:21,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:21,795 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:21,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300976773] [2021-06-05 20:10:21,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300976773] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:21,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:21,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:10:21,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102107706] [2021-06-05 20:10:21,796 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:10:21,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:21,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:10:21,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:10:21,796 INFO L87 Difference]: Start difference. First operand 2980 states and 7686 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:22,889 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2021-06-05 20:10:23,448 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-06-05 20:10:24,113 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-06-05 20:10:25,505 WARN L205 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-06-05 20:10:25,692 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-06-05 20:10:25,843 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-06-05 20:10:26,122 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-06-05 20:10:26,557 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-06-05 20:10:27,722 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-06-05 20:10:27,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:27,738 INFO L93 Difference]: Finished difference Result 3539 states and 8837 transitions. [2021-06-05 20:10:27,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 20:10:27,739 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:27,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:27,741 INFO L225 Difference]: With dead ends: 3539 [2021-06-05 20:10:27,741 INFO L226 Difference]: Without dead ends: 3310 [2021-06-05 20:10:27,742 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 4612.7ms TimeCoverageRelationStatistics Valid=547, Invalid=2759, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 20:10:27,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2021-06-05 20:10:27,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 2956. [2021-06-05 20:10:27,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2956 states, 2955 states have (on average 2.579357021996616) internal successors, (7622), 2955 states have internal predecessors, (7622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:27,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2956 states to 2956 states and 7622 transitions. [2021-06-05 20:10:27,782 INFO L78 Accepts]: Start accepts. Automaton has 2956 states and 7622 transitions. Word has length 119 [2021-06-05 20:10:27,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:27,782 INFO L482 AbstractCegarLoop]: Abstraction has 2956 states and 7622 transitions. [2021-06-05 20:10:27,782 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:27,782 INFO L276 IsEmpty]: Start isEmpty. Operand 2956 states and 7622 transitions. [2021-06-05 20:10:27,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:27,785 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:27,785 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:27,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-06-05 20:10:27,785 INFO L430 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:27,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:27,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1368960213, now seen corresponding path program 3 times [2021-06-05 20:10:27,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:27,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551829126] [2021-06-05 20:10:27,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:27,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:27,989 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:27,989 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551829126] [2021-06-05 20:10:27,989 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551829126] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:27,989 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:27,989 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 20:10:27,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431804818] [2021-06-05 20:10:27,990 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 20:10:27,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:27,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 20:10:27,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-06-05 20:10:27,990 INFO L87 Difference]: Start difference. First operand 2956 states and 7622 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:28,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:28,362 INFO L93 Difference]: Finished difference Result 3233 states and 8126 transitions. [2021-06-05 20:10:28,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-05 20:10:28,363 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:28,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:28,367 INFO L225 Difference]: With dead ends: 3233 [2021-06-05 20:10:28,367 INFO L226 Difference]: Without dead ends: 3233 [2021-06-05 20:10:28,367 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 296.9ms TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2021-06-05 20:10:28,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3233 states. [2021-06-05 20:10:28,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3233 to 3024. [2021-06-05 20:10:28,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3024 states, 3023 states have (on average 2.5689712206417465) internal successors, (7766), 3023 states have internal predecessors, (7766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:28,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3024 states to 3024 states and 7766 transitions. [2021-06-05 20:10:28,411 INFO L78 Accepts]: Start accepts. Automaton has 3024 states and 7766 transitions. Word has length 119 [2021-06-05 20:10:28,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:28,412 INFO L482 AbstractCegarLoop]: Abstraction has 3024 states and 7766 transitions. [2021-06-05 20:10:28,412 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:28,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3024 states and 7766 transitions. [2021-06-05 20:10:28,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:28,415 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:28,415 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:28,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-06-05 20:10:28,415 INFO L430 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:28,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:28,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1142977447, now seen corresponding path program 114 times [2021-06-05 20:10:28,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:28,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407849809] [2021-06-05 20:10:28,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:29,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:29,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:29,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407849809] [2021-06-05 20:10:29,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407849809] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:29,275 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:29,275 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:10:29,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556343055] [2021-06-05 20:10:29,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:10:29,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:29,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:10:29,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:10:29,276 INFO L87 Difference]: Start difference. First operand 3024 states and 7766 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:30,655 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:10:30,844 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-06-05 20:10:31,134 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-06-05 20:10:32,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:32,257 INFO L93 Difference]: Finished difference Result 3327 states and 8369 transitions. [2021-06-05 20:10:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:10:32,257 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:32,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:32,261 INFO L225 Difference]: With dead ends: 3327 [2021-06-05 20:10:32,261 INFO L226 Difference]: Without dead ends: 3085 [2021-06-05 20:10:32,261 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2706.8ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:10:32,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2021-06-05 20:10:32,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 2969. [2021-06-05 20:10:32,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2969 states, 2968 states have (on average 2.5785040431266846) internal successors, (7653), 2968 states have internal predecessors, (7653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:32,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2969 states to 2969 states and 7653 transitions. [2021-06-05 20:10:32,306 INFO L78 Accepts]: Start accepts. Automaton has 2969 states and 7653 transitions. Word has length 119 [2021-06-05 20:10:32,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:32,307 INFO L482 AbstractCegarLoop]: Abstraction has 2969 states and 7653 transitions. [2021-06-05 20:10:32,307 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:32,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2969 states and 7653 transitions. [2021-06-05 20:10:32,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:32,310 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:32,311 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:32,311 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-06-05 20:10:32,311 INFO L430 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:32,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:32,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1486449587, now seen corresponding path program 115 times [2021-06-05 20:10:32,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:32,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832623566] [2021-06-05 20:10:32,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:33,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:33,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:33,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832623566] [2021-06-05 20:10:33,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832623566] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:33,161 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:33,161 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:10:33,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74993161] [2021-06-05 20:10:33,161 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:10:33,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:33,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:10:33,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:10:33,162 INFO L87 Difference]: Start difference. First operand 2969 states and 7653 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:34,221 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2021-06-05 20:10:34,370 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2021-06-05 20:10:34,529 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-06-05 20:10:34,734 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 20:10:35,013 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-05 20:10:35,372 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2021-06-05 20:10:36,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:36,176 INFO L93 Difference]: Finished difference Result 3281 states and 8272 transitions. [2021-06-05 20:10:36,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:10:36,183 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:36,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:36,186 INFO L225 Difference]: With dead ends: 3281 [2021-06-05 20:10:36,186 INFO L226 Difference]: Without dead ends: 3058 [2021-06-05 20:10:36,186 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2775.5ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:10:36,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2021-06-05 20:10:36,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 2983. [2021-06-05 20:10:36,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2982 states have (on average 2.573775989268947) internal successors, (7675), 2982 states have internal predecessors, (7675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:36,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 7675 transitions. [2021-06-05 20:10:36,229 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 7675 transitions. Word has length 119 [2021-06-05 20:10:36,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:36,229 INFO L482 AbstractCegarLoop]: Abstraction has 2983 states and 7675 transitions. [2021-06-05 20:10:36,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:36,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 7675 transitions. [2021-06-05 20:10:36,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:36,233 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:36,233 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:36,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-06-05 20:10:36,233 INFO L430 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:36,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:36,233 INFO L82 PathProgramCache]: Analyzing trace with hash 2005810357, now seen corresponding path program 116 times [2021-06-05 20:10:36,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:36,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984180085] [2021-06-05 20:10:36,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:37,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:37,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:37,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984180085] [2021-06-05 20:10:37,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984180085] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:37,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:37,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:10:37,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525730181] [2021-06-05 20:10:37,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:10:37,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:37,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:10:37,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:10:37,095 INFO L87 Difference]: Start difference. First operand 2983 states and 7675 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:38,356 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2021-06-05 20:10:38,517 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-06-05 20:10:38,775 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-06-05 20:10:38,946 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 20:10:39,209 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-06-05 20:10:40,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:40,353 INFO L93 Difference]: Finished difference Result 3263 states and 8232 transitions. [2021-06-05 20:10:40,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 20:10:40,353 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:40,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:40,356 INFO L225 Difference]: With dead ends: 3263 [2021-06-05 20:10:40,356 INFO L226 Difference]: Without dead ends: 3050 [2021-06-05 20:10:40,357 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2964.4ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:10:40,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2021-06-05 20:10:40,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2986. [2021-06-05 20:10:40,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2985 states have (on average 2.5721943048576215) internal successors, (7678), 2985 states have internal predecessors, (7678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:40,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 7678 transitions. [2021-06-05 20:10:40,397 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 7678 transitions. Word has length 119 [2021-06-05 20:10:40,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:40,398 INFO L482 AbstractCegarLoop]: Abstraction has 2986 states and 7678 transitions. [2021-06-05 20:10:40,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:40,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 7678 transitions. [2021-06-05 20:10:40,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:40,400 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:40,400 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:40,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-06-05 20:10:40,401 INFO L430 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:40,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:40,404 INFO L82 PathProgramCache]: Analyzing trace with hash -309305135, now seen corresponding path program 117 times [2021-06-05 20:10:40,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:40,404 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601465514] [2021-06-05 20:10:40,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:41,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:41,279 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:41,279 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601465514] [2021-06-05 20:10:41,279 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601465514] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:41,279 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:41,279 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:10:41,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512758540] [2021-06-05 20:10:41,280 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:10:41,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:41,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:10:41,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:10:41,280 INFO L87 Difference]: Start difference. First operand 2986 states and 7678 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:42,517 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2021-06-05 20:10:42,675 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-06-05 20:10:42,931 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-06-05 20:10:43,471 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-06-05 20:10:44,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:44,348 INFO L93 Difference]: Finished difference Result 3345 states and 8401 transitions. [2021-06-05 20:10:44,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 20:10:44,349 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:44,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:44,352 INFO L225 Difference]: With dead ends: 3345 [2021-06-05 20:10:44,352 INFO L226 Difference]: Without dead ends: 3097 [2021-06-05 20:10:44,353 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2782.3ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 20:10:44,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2021-06-05 20:10:44,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 2967. [2021-06-05 20:10:44,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2966 states have (on average 2.5755225893459204) internal successors, (7639), 2966 states have internal predecessors, (7639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:44,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 7639 transitions. [2021-06-05 20:10:44,398 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 7639 transitions. Word has length 119 [2021-06-05 20:10:44,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:44,398 INFO L482 AbstractCegarLoop]: Abstraction has 2967 states and 7639 transitions. [2021-06-05 20:10:44,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:44,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 7639 transitions. [2021-06-05 20:10:44,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:44,401 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:44,401 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:44,401 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-06-05 20:10:44,401 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:44,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:44,402 INFO L82 PathProgramCache]: Analyzing trace with hash -268260227, now seen corresponding path program 118 times [2021-06-05 20:10:44,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:44,402 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367032700] [2021-06-05 20:10:44,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:45,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:45,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:45,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367032700] [2021-06-05 20:10:45,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367032700] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:45,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:45,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:10:45,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548716095] [2021-06-05 20:10:45,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:10:45,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:45,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:10:45,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:10:45,221 INFO L87 Difference]: Start difference. First operand 2967 states and 7639 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:46,570 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:10:46,759 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-06-05 20:10:47,026 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-06-05 20:10:48,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:48,183 INFO L93 Difference]: Finished difference Result 3244 states and 8181 transitions. [2021-06-05 20:10:48,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:10:48,184 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:48,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:48,187 INFO L225 Difference]: With dead ends: 3244 [2021-06-05 20:10:48,187 INFO L226 Difference]: Without dead ends: 3015 [2021-06-05 20:10:48,187 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2607.7ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:10:48,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3015 states. [2021-06-05 20:10:48,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3015 to 2961. [2021-06-05 20:10:48,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2961 states, 2960 states have (on average 2.5763513513513514) internal successors, (7626), 2960 states have internal predecessors, (7626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:48,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2961 states to 2961 states and 7626 transitions. [2021-06-05 20:10:48,229 INFO L78 Accepts]: Start accepts. Automaton has 2961 states and 7626 transitions. Word has length 119 [2021-06-05 20:10:48,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:48,229 INFO L482 AbstractCegarLoop]: Abstraction has 2961 states and 7626 transitions. [2021-06-05 20:10:48,229 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:48,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2961 states and 7626 transitions. [2021-06-05 20:10:48,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:48,232 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:48,232 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:48,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-06-05 20:10:48,232 INFO L430 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:48,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:48,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1798328559, now seen corresponding path program 119 times [2021-06-05 20:10:48,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:48,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742124305] [2021-06-05 20:10:48,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:49,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:49,053 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:49,053 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742124305] [2021-06-05 20:10:49,053 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742124305] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:49,053 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:49,053 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:10:49,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127950685] [2021-06-05 20:10:49,053 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:10:49,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:49,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:10:49,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:10:49,054 INFO L87 Difference]: Start difference. First operand 2961 states and 7626 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:50,336 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2021-06-05 20:10:50,511 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2021-06-05 20:10:50,721 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-05 20:10:51,019 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-06-05 20:10:52,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:52,268 INFO L93 Difference]: Finished difference Result 3213 states and 8115 transitions. [2021-06-05 20:10:52,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:10:52,269 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:52,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:52,276 INFO L225 Difference]: With dead ends: 3213 [2021-06-05 20:10:52,276 INFO L226 Difference]: Without dead ends: 2990 [2021-06-05 20:10:52,277 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2809.8ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:10:52,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2021-06-05 20:10:52,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2938. [2021-06-05 20:10:52,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2938 states, 2937 states have (on average 2.5757575757575757) internal successors, (7565), 2937 states have internal predecessors, (7565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:52,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2938 states to 2938 states and 7565 transitions. [2021-06-05 20:10:52,319 INFO L78 Accepts]: Start accepts. Automaton has 2938 states and 7565 transitions. Word has length 119 [2021-06-05 20:10:52,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:52,319 INFO L482 AbstractCegarLoop]: Abstraction has 2938 states and 7565 transitions. [2021-06-05 20:10:52,319 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:52,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2938 states and 7565 transitions. [2021-06-05 20:10:52,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:52,322 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:52,322 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:52,322 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-06-05 20:10:52,322 INFO L430 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:52,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:52,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1370230153, now seen corresponding path program 120 times [2021-06-05 20:10:52,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:52,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378969542] [2021-06-05 20:10:52,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:53,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:53,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:53,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378969542] [2021-06-05 20:10:53,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378969542] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:53,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:53,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:10:53,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738441905] [2021-06-05 20:10:53,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:10:53,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:53,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:10:53,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:10:53,156 INFO L87 Difference]: Start difference. First operand 2938 states and 7565 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:54,507 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-06-05 20:10:54,701 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-06-05 20:10:54,974 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 20:10:56,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:56,159 INFO L93 Difference]: Finished difference Result 3203 states and 8089 transitions. [2021-06-05 20:10:56,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:10:56,159 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:56,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:56,163 INFO L225 Difference]: With dead ends: 3203 [2021-06-05 20:10:56,163 INFO L226 Difference]: Without dead ends: 2977 [2021-06-05 20:10:56,163 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2686.6ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:10:56,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2021-06-05 20:10:56,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 2939. [2021-06-05 20:10:56,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2939 states, 2938 states have (on average 2.572498298162015) internal successors, (7558), 2938 states have internal predecessors, (7558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:56,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2939 states to 2939 states and 7558 transitions. [2021-06-05 20:10:56,210 INFO L78 Accepts]: Start accepts. Automaton has 2939 states and 7558 transitions. Word has length 119 [2021-06-05 20:10:56,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:56,211 INFO L482 AbstractCegarLoop]: Abstraction has 2939 states and 7558 transitions. [2021-06-05 20:10:56,211 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:56,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2939 states and 7558 transitions. [2021-06-05 20:10:56,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:56,214 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:56,214 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:56,219 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-06-05 20:10:56,219 INFO L430 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:56,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:56,219 INFO L82 PathProgramCache]: Analyzing trace with hash -2026929395, now seen corresponding path program 121 times [2021-06-05 20:10:56,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:56,219 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802383903] [2021-06-05 20:10:56,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:57,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:57,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802383903] [2021-06-05 20:10:57,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802383903] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:57,109 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:57,109 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:10:57,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179267443] [2021-06-05 20:10:57,109 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:10:57,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:57,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:10:57,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:10:57,110 INFO L87 Difference]: Start difference. First operand 2939 states and 7558 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:59,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:59,805 INFO L93 Difference]: Finished difference Result 3282 states and 8239 transitions. [2021-06-05 20:10:59,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 20:10:59,806 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:10:59,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:59,808 INFO L225 Difference]: With dead ends: 3282 [2021-06-05 20:10:59,809 INFO L226 Difference]: Without dead ends: 3048 [2021-06-05 20:10:59,809 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2428.4ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 20:10:59,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2021-06-05 20:10:59,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 2937. [2021-06-05 20:10:59,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2936 states have (on average 2.5705040871934606) internal successors, (7547), 2936 states have internal predecessors, (7547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:59,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 7547 transitions. [2021-06-05 20:10:59,846 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 7547 transitions. Word has length 119 [2021-06-05 20:10:59,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:59,846 INFO L482 AbstractCegarLoop]: Abstraction has 2937 states and 7547 transitions. [2021-06-05 20:10:59,846 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:59,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 7547 transitions. [2021-06-05 20:10:59,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:10:59,850 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:59,850 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:10:59,850 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-06-05 20:10:59,850 INFO L430 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:59,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:59,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1854269505, now seen corresponding path program 122 times [2021-06-05 20:10:59,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:59,850 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642256563] [2021-06-05 20:10:59,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:00,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:00,508 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:00,508 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642256563] [2021-06-05 20:11:00,508 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642256563] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:00,508 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:00,509 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:11:00,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885673875] [2021-06-05 20:11:00,509 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:11:00,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:00,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:11:00,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:11:00,509 INFO L87 Difference]: Start difference. First operand 2937 states and 7547 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:01,815 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-06-05 20:11:01,963 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-05 20:11:02,112 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 20:11:02,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:02,973 INFO L93 Difference]: Finished difference Result 3149 states and 7950 transitions. [2021-06-05 20:11:02,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:11:02,974 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:11:02,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:02,976 INFO L225 Difference]: With dead ends: 3149 [2021-06-05 20:11:02,976 INFO L226 Difference]: Without dead ends: 2826 [2021-06-05 20:11:02,977 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2202.4ms TimeCoverageRelationStatistics Valid=444, Invalid=2208, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:11:02,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2021-06-05 20:11:03,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 2794. [2021-06-05 20:11:03,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2793 states have (on average 2.594343000358038) internal successors, (7246), 2793 states have internal predecessors, (7246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:03,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 7246 transitions. [2021-06-05 20:11:03,007 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 7246 transitions. Word has length 119 [2021-06-05 20:11:03,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:03,007 INFO L482 AbstractCegarLoop]: Abstraction has 2794 states and 7246 transitions. [2021-06-05 20:11:03,007 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:03,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 7246 transitions. [2021-06-05 20:11:03,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:11:03,010 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:03,010 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:11:03,010 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-06-05 20:11:03,010 INFO L430 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:03,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:03,010 INFO L82 PathProgramCache]: Analyzing trace with hash 817958827, now seen corresponding path program 123 times [2021-06-05 20:11:03,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:03,010 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672021484] [2021-06-05 20:11:03,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:03,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:03,225 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:03,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672021484] [2021-06-05 20:11:03,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672021484] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:03,225 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:03,225 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 20:11:03,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421417925] [2021-06-05 20:11:03,226 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 20:11:03,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:03,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 20:11:03,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-05 20:11:03,226 INFO L87 Difference]: Start difference. First operand 2794 states and 7246 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:03,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:03,522 INFO L93 Difference]: Finished difference Result 3481 states and 8729 transitions. [2021-06-05 20:11:03,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 20:11:03,522 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:11:03,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:03,525 INFO L225 Difference]: With dead ends: 3481 [2021-06-05 20:11:03,525 INFO L226 Difference]: Without dead ends: 3481 [2021-06-05 20:11:03,525 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 290.4ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:11:03,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3481 states. [2021-06-05 20:11:03,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3481 to 2850. [2021-06-05 20:11:03,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2850 states, 2849 states have (on average 2.5805545805545806) internal successors, (7352), 2849 states have internal predecessors, (7352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:03,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 7352 transitions. [2021-06-05 20:11:03,558 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 7352 transitions. Word has length 119 [2021-06-05 20:11:03,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:03,558 INFO L482 AbstractCegarLoop]: Abstraction has 2850 states and 7352 transitions. [2021-06-05 20:11:03,558 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:03,558 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 7352 transitions. [2021-06-05 20:11:03,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:11:03,560 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:03,560 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:11:03,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-06-05 20:11:03,560 INFO L430 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:03,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:03,561 INFO L82 PathProgramCache]: Analyzing trace with hash -2038332403, now seen corresponding path program 124 times [2021-06-05 20:11:03,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:03,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964821238] [2021-06-05 20:11:03,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:04,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:04,224 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:04,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964821238] [2021-06-05 20:11:04,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964821238] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:04,224 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:04,224 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:11:04,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506715675] [2021-06-05 20:11:04,225 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:11:04,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:04,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:11:04,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:11:04,225 INFO L87 Difference]: Start difference. First operand 2850 states and 7352 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:05,133 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-06-05 20:11:05,389 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-06-05 20:11:05,679 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-06-05 20:11:06,757 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-06-05 20:11:08,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:08,258 INFO L93 Difference]: Finished difference Result 4555 states and 11592 transitions. [2021-06-05 20:11:08,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:11:08,259 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:11:08,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:08,262 INFO L225 Difference]: With dead ends: 4555 [2021-06-05 20:11:08,262 INFO L226 Difference]: Without dead ends: 4360 [2021-06-05 20:11:08,263 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 3291.1ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:11:08,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2021-06-05 20:11:08,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 3366. [2021-06-05 20:11:08,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 3365 states have (on average 2.613372956909361) internal successors, (8794), 3365 states have internal predecessors, (8794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:08,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 8794 transitions. [2021-06-05 20:11:08,311 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 8794 transitions. Word has length 119 [2021-06-05 20:11:08,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:08,311 INFO L482 AbstractCegarLoop]: Abstraction has 3366 states and 8794 transitions. [2021-06-05 20:11:08,311 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:08,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 8794 transitions. [2021-06-05 20:11:08,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:11:08,315 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:08,315 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:11:08,315 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-06-05 20:11:08,315 INFO L430 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:08,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:08,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1018645257, now seen corresponding path program 4 times [2021-06-05 20:11:08,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:08,315 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047573043] [2021-06-05 20:11:08,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:08,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:08,991 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:08,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047573043] [2021-06-05 20:11:08,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047573043] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:08,991 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:08,991 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-05 20:11:08,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041201978] [2021-06-05 20:11:08,992 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-05 20:11:08,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:08,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-05 20:11:08,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2021-06-05 20:11:08,992 INFO L87 Difference]: Start difference. First operand 3366 states and 8794 transitions. Second operand has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:11,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:11,065 INFO L93 Difference]: Finished difference Result 3704 states and 9432 transitions. [2021-06-05 20:11:11,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 20:11:11,065 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:11:11,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:11,068 INFO L225 Difference]: With dead ends: 3704 [2021-06-05 20:11:11,068 INFO L226 Difference]: Without dead ends: 3623 [2021-06-05 20:11:11,068 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 1814.6ms TimeCoverageRelationStatistics Valid=736, Invalid=2344, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 20:11:11,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3623 states. [2021-06-05 20:11:11,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3623 to 3351. [2021-06-05 20:11:11,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3350 states have (on average 2.6292537313432836) internal successors, (8808), 3350 states have internal predecessors, (8808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:11,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 8808 transitions. [2021-06-05 20:11:11,103 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 8808 transitions. Word has length 119 [2021-06-05 20:11:11,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:11,103 INFO L482 AbstractCegarLoop]: Abstraction has 3351 states and 8808 transitions. [2021-06-05 20:11:11,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:11,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 8808 transitions. [2021-06-05 20:11:11,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:11:11,105 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:11,105 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:11:11,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-06-05 20:11:11,105 INFO L430 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:11,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:11,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1034485205, now seen corresponding path program 125 times [2021-06-05 20:11:11,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:11,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960977010] [2021-06-05 20:11:11,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:11,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:11,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:11,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960977010] [2021-06-05 20:11:11,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960977010] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:11,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:11,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:11:11,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480451220] [2021-06-05 20:11:11,737 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:11:11,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:11,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:11:11,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:11:11,737 INFO L87 Difference]: Start difference. First operand 3351 states and 8808 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:12,703 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-06-05 20:11:12,927 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-06-05 20:11:14,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:14,872 INFO L93 Difference]: Finished difference Result 4631 states and 12019 transitions. [2021-06-05 20:11:14,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:11:14,872 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:11:14,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:14,875 INFO L225 Difference]: With dead ends: 4631 [2021-06-05 20:11:14,875 INFO L226 Difference]: Without dead ends: 4240 [2021-06-05 20:11:14,876 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2719.4ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:11:14,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4240 states. [2021-06-05 20:11:14,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4240 to 3411. [2021-06-05 20:11:14,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3411 states, 3410 states have (on average 2.6146627565982405) internal successors, (8916), 3410 states have internal predecessors, (8916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:14,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3411 states to 3411 states and 8916 transitions. [2021-06-05 20:11:14,917 INFO L78 Accepts]: Start accepts. Automaton has 3411 states and 8916 transitions. Word has length 119 [2021-06-05 20:11:14,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:14,917 INFO L482 AbstractCegarLoop]: Abstraction has 3411 states and 8916 transitions. [2021-06-05 20:11:14,917 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:14,917 INFO L276 IsEmpty]: Start isEmpty. Operand 3411 states and 8916 transitions. [2021-06-05 20:11:14,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:11:14,920 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:14,920 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:11:14,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-06-05 20:11:14,920 INFO L430 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:14,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:14,920 INFO L82 PathProgramCache]: Analyzing trace with hash 173940159, now seen corresponding path program 126 times [2021-06-05 20:11:14,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:14,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434566685] [2021-06-05 20:11:14,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:15,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:15,555 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:15,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434566685] [2021-06-05 20:11:15,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434566685] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:15,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:15,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:11:15,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330499678] [2021-06-05 20:11:15,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:11:15,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:15,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:11:15,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:11:15,556 INFO L87 Difference]: Start difference. First operand 3411 states and 8916 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:16,501 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-06-05 20:11:16,720 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-06-05 20:11:18,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:18,785 INFO L93 Difference]: Finished difference Result 4346 states and 11212 transitions. [2021-06-05 20:11:18,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 20:11:18,786 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:11:18,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:18,789 INFO L225 Difference]: With dead ends: 4346 [2021-06-05 20:11:18,789 INFO L226 Difference]: Without dead ends: 3916 [2021-06-05 20:11:18,790 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2892.8ms TimeCoverageRelationStatistics Valid=639, Invalid=3143, Unknown=0, NotChecked=0, Total=3782 [2021-06-05 20:11:18,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2021-06-05 20:11:18,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3087. [2021-06-05 20:11:18,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3087 states, 3086 states have (on average 2.6085547634478288) internal successors, (8050), 3086 states have internal predecessors, (8050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:18,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3087 states to 3087 states and 8050 transitions. [2021-06-05 20:11:18,827 INFO L78 Accepts]: Start accepts. Automaton has 3087 states and 8050 transitions. Word has length 119 [2021-06-05 20:11:18,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:18,827 INFO L482 AbstractCegarLoop]: Abstraction has 3087 states and 8050 transitions. [2021-06-05 20:11:18,827 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:18,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3087 states and 8050 transitions. [2021-06-05 20:11:18,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:11:18,830 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:18,830 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:11:18,830 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-06-05 20:11:18,830 INFO L430 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:18,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:18,830 INFO L82 PathProgramCache]: Analyzing trace with hash -431161445, now seen corresponding path program 127 times [2021-06-05 20:11:18,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:18,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750314506] [2021-06-05 20:11:18,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:19,456 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:19,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750314506] [2021-06-05 20:11:19,456 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750314506] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:19,456 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:19,456 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:11:19,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142947370] [2021-06-05 20:11:19,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:11:19,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:19,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:11:19,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:11:19,457 INFO L87 Difference]: Start difference. First operand 3087 states and 8050 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:20,431 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-06-05 20:11:20,658 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-06-05 20:11:21,161 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-05 20:11:21,764 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-06-05 20:11:21,960 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-06-05 20:11:23,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:23,085 INFO L93 Difference]: Finished difference Result 3683 states and 9433 transitions. [2021-06-05 20:11:23,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:11:23,085 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:11:23,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:23,089 INFO L225 Difference]: With dead ends: 3683 [2021-06-05 20:11:23,089 INFO L226 Difference]: Without dead ends: 3499 [2021-06-05 20:11:23,089 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 3110.2ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:11:23,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3499 states. [2021-06-05 20:11:23,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3499 to 3083. [2021-06-05 20:11:23,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 3082 states have (on average 2.6080467229072033) internal successors, (8038), 3082 states have internal predecessors, (8038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:23,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 8038 transitions. [2021-06-05 20:11:23,128 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 8038 transitions. Word has length 119 [2021-06-05 20:11:23,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:23,128 INFO L482 AbstractCegarLoop]: Abstraction has 3083 states and 8038 transitions. [2021-06-05 20:11:23,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:23,128 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 8038 transitions. [2021-06-05 20:11:23,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:11:23,131 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:23,131 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:11:23,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-06-05 20:11:23,131 INFO L430 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:23,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:23,131 INFO L82 PathProgramCache]: Analyzing trace with hash 273153869, now seen corresponding path program 128 times [2021-06-05 20:11:23,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:23,132 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815286712] [2021-06-05 20:11:23,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:23,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:23,932 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:23,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815286712] [2021-06-05 20:11:23,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815286712] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:23,932 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:23,932 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:11:23,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200226799] [2021-06-05 20:11:23,932 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:11:23,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:23,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:11:23,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:11:23,933 INFO L87 Difference]: Start difference. First operand 3083 states and 8038 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:24,760 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2021-06-05 20:11:24,896 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-06-05 20:11:25,155 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-06-05 20:11:25,629 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 65 [2021-06-05 20:11:25,863 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-05 20:11:26,766 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-06-05 20:11:27,085 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-06-05 20:11:28,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:28,032 INFO L93 Difference]: Finished difference Result 3561 states and 9084 transitions. [2021-06-05 20:11:28,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:11:28,032 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:11:28,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:28,035 INFO L225 Difference]: With dead ends: 3561 [2021-06-05 20:11:28,035 INFO L226 Difference]: Without dead ends: 3347 [2021-06-05 20:11:28,035 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 3672.1ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:11:28,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3347 states. [2021-06-05 20:11:28,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3347 to 3079. [2021-06-05 20:11:28,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3079 states, 3078 states have (on average 2.6062378167641325) internal successors, (8022), 3078 states have internal predecessors, (8022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:28,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3079 states to 3079 states and 8022 transitions. [2021-06-05 20:11:28,076 INFO L78 Accepts]: Start accepts. Automaton has 3079 states and 8022 transitions. Word has length 119 [2021-06-05 20:11:28,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:28,076 INFO L482 AbstractCegarLoop]: Abstraction has 3079 states and 8022 transitions. [2021-06-05 20:11:28,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:28,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3079 states and 8022 transitions. [2021-06-05 20:11:28,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:11:28,079 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:28,079 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:11:28,079 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-06-05 20:11:28,080 INFO L430 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:28,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:28,080 INFO L82 PathProgramCache]: Analyzing trace with hash -159746609, now seen corresponding path program 129 times [2021-06-05 20:11:28,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:28,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376928466] [2021-06-05 20:11:28,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:28,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:28,878 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:28,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376928466] [2021-06-05 20:11:28,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376928466] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:28,878 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:28,878 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:11:28,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661209456] [2021-06-05 20:11:28,878 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:11:28,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:28,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:11:28,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:11:28,879 INFO L87 Difference]: Start difference. First operand 3079 states and 8022 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:29,846 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-06-05 20:11:30,169 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-06-05 20:11:30,362 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-06-05 20:11:30,627 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-06-05 20:11:31,295 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 20:11:31,758 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-06-05 20:11:32,109 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-06-05 20:11:32,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:32,483 INFO L93 Difference]: Finished difference Result 3687 states and 9494 transitions. [2021-06-05 20:11:32,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:11:32,483 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:11:32,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:32,487 INFO L225 Difference]: With dead ends: 3687 [2021-06-05 20:11:32,487 INFO L226 Difference]: Without dead ends: 3557 [2021-06-05 20:11:32,487 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 3113.9ms TimeCoverageRelationStatistics Valid=487, Invalid=2483, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:11:32,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3557 states. [2021-06-05 20:11:32,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3557 to 3247. [2021-06-05 20:11:32,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3247 states, 3246 states have (on average 2.6001232285890326) internal successors, (8440), 3246 states have internal predecessors, (8440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:32,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 8440 transitions. [2021-06-05 20:11:32,533 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 8440 transitions. Word has length 119 [2021-06-05 20:11:32,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:32,533 INFO L482 AbstractCegarLoop]: Abstraction has 3247 states and 8440 transitions. [2021-06-05 20:11:32,533 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:32,533 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 8440 transitions. [2021-06-05 20:11:32,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:11:32,537 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:32,537 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:11:32,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-06-05 20:11:32,537 INFO L430 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:32,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:32,537 INFO L82 PathProgramCache]: Analyzing trace with hash 844100589, now seen corresponding path program 130 times [2021-06-05 20:11:32,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:32,537 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157446343] [2021-06-05 20:11:32,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:33,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:33,331 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:33,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157446343] [2021-06-05 20:11:33,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157446343] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:33,331 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:33,331 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:11:33,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147786314] [2021-06-05 20:11:33,331 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:11:33,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:33,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:11:33,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:11:33,332 INFO L87 Difference]: Start difference. First operand 3247 states and 8440 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:34,546 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2021-06-05 20:11:34,740 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-06-05 20:11:35,009 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-06-05 20:11:35,568 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-06-05 20:11:36,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:36,810 INFO L93 Difference]: Finished difference Result 3861 states and 9900 transitions. [2021-06-05 20:11:36,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 20:11:36,811 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:11:36,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:36,816 INFO L225 Difference]: With dead ends: 3861 [2021-06-05 20:11:36,817 INFO L226 Difference]: Without dead ends: 3610 [2021-06-05 20:11:36,817 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 3027.8ms TimeCoverageRelationStatistics Valid=518, Invalid=2562, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 20:11:36,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2021-06-05 20:11:36,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 3283. [2021-06-05 20:11:36,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 3282 states have (on average 2.5898842169408898) internal successors, (8500), 3282 states have internal predecessors, (8500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:36,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 8500 transitions. [2021-06-05 20:11:36,870 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 8500 transitions. Word has length 119 [2021-06-05 20:11:36,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:36,870 INFO L482 AbstractCegarLoop]: Abstraction has 3283 states and 8500 transitions. [2021-06-05 20:11:36,870 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:36,870 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 8500 transitions. [2021-06-05 20:11:36,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:11:36,874 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:36,874 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:11:36,874 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-06-05 20:11:36,875 INFO L430 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:36,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:36,875 INFO L82 PathProgramCache]: Analyzing trace with hash 2052525953, now seen corresponding path program 131 times [2021-06-05 20:11:36,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:36,875 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151643741] [2021-06-05 20:11:36,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:37,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:37,687 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:37,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151643741] [2021-06-05 20:11:37,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151643741] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:37,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:37,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:11:37,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702431788] [2021-06-05 20:11:37,688 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:11:37,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:37,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:11:37,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:11:37,688 INFO L87 Difference]: Start difference. First operand 3283 states and 8500 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:38,583 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-06-05 20:11:39,020 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-06-05 20:11:39,311 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-06-05 20:11:41,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:41,037 INFO L93 Difference]: Finished difference Result 3692 states and 9443 transitions. [2021-06-05 20:11:41,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 20:11:41,038 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:11:41,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:41,041 INFO L225 Difference]: With dead ends: 3692 [2021-06-05 20:11:41,041 INFO L226 Difference]: Without dead ends: 3406 [2021-06-05 20:11:41,042 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 2949.0ms TimeCoverageRelationStatistics Valid=520, Invalid=2672, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 20:11:41,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3406 states. [2021-06-05 20:11:41,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3406 to 3079. [2021-06-05 20:11:41,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3079 states, 3078 states have (on average 2.6023391812865495) internal successors, (8010), 3078 states have internal predecessors, (8010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:41,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3079 states to 3079 states and 8010 transitions. [2021-06-05 20:11:41,090 INFO L78 Accepts]: Start accepts. Automaton has 3079 states and 8010 transitions. Word has length 119 [2021-06-05 20:11:41,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:41,090 INFO L482 AbstractCegarLoop]: Abstraction has 3079 states and 8010 transitions. [2021-06-05 20:11:41,090 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:41,090 INFO L276 IsEmpty]: Start isEmpty. Operand 3079 states and 8010 transitions. [2021-06-05 20:11:41,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:11:41,093 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:41,093 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:11:41,094 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-06-05 20:11:41,094 INFO L430 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:41,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:41,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1447424349, now seen corresponding path program 132 times [2021-06-05 20:11:41,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:41,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793269573] [2021-06-05 20:11:41,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:41,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:41,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:41,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:41,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793269573] [2021-06-05 20:11:41,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793269573] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:41,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:41,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:11:41,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474800660] [2021-06-05 20:11:41,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:11:41,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:41,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:11:41,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:11:41,900 INFO L87 Difference]: Start difference. First operand 3079 states and 8010 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:42,845 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-06-05 20:11:43,186 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-06-05 20:11:43,371 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-06-05 20:11:44,023 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-06-05 20:11:44,178 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-06-05 20:11:44,939 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-06-05 20:11:45,443 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-06-05 20:11:45,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:45,670 INFO L93 Difference]: Finished difference Result 3437 states and 8851 transitions. [2021-06-05 20:11:45,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:11:45,670 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:11:45,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:45,674 INFO L225 Difference]: With dead ends: 3437 [2021-06-05 20:11:45,675 INFO L226 Difference]: Without dead ends: 3293 [2021-06-05 20:11:45,675 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 3403.9ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:11:45,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3293 states. [2021-06-05 20:11:45,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3293 to 3067. [2021-06-05 20:11:45,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 3066 states have (on average 2.604696673189824) internal successors, (7986), 3066 states have internal predecessors, (7986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:45,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 7986 transitions. [2021-06-05 20:11:45,720 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 7986 transitions. Word has length 119 [2021-06-05 20:11:45,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:45,720 INFO L482 AbstractCegarLoop]: Abstraction has 3067 states and 7986 transitions. [2021-06-05 20:11:45,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:45,720 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 7986 transitions. [2021-06-05 20:11:45,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:11:45,723 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:45,723 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:11:45,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-06-05 20:11:45,723 INFO L430 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:45,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:45,724 INFO L82 PathProgramCache]: Analyzing trace with hash -54833173, now seen corresponding path program 133 times [2021-06-05 20:11:45,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:45,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783623748] [2021-06-05 20:11:45,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:46,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:46,481 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:46,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783623748] [2021-06-05 20:11:46,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783623748] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:46,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:46,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:11:46,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562550834] [2021-06-05 20:11:46,481 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:11:46,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:46,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:11:46,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:11:46,482 INFO L87 Difference]: Start difference. First operand 3067 states and 7986 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:47,745 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-06-05 20:11:48,858 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-06-05 20:11:49,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:49,947 INFO L93 Difference]: Finished difference Result 4134 states and 10644 transitions. [2021-06-05 20:11:49,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:11:49,947 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:11:49,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:49,952 INFO L225 Difference]: With dead ends: 4134 [2021-06-05 20:11:49,952 INFO L226 Difference]: Without dead ends: 4004 [2021-06-05 20:11:49,953 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 2900.6ms TimeCoverageRelationStatistics Valid=477, Invalid=2493, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:11:49,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4004 states. [2021-06-05 20:11:49,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4004 to 3211. [2021-06-05 20:11:49,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3210 states have (on average 2.6031152647975078) internal successors, (8356), 3210 states have internal predecessors, (8356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:50,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 8356 transitions. [2021-06-05 20:11:50,005 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 8356 transitions. Word has length 119 [2021-06-05 20:11:50,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:50,005 INFO L482 AbstractCegarLoop]: Abstraction has 3211 states and 8356 transitions. [2021-06-05 20:11:50,005 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:50,005 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 8356 transitions. [2021-06-05 20:11:50,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:11:50,008 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:50,008 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:11:50,008 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-06-05 20:11:50,009 INFO L430 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:50,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:50,009 INFO L82 PathProgramCache]: Analyzing trace with hash 949014025, now seen corresponding path program 134 times [2021-06-05 20:11:50,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:50,009 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094580360] [2021-06-05 20:11:50,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:50,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:50,772 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:50,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094580360] [2021-06-05 20:11:50,772 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094580360] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:50,772 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:50,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:11:50,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072585768] [2021-06-05 20:11:50,772 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:11:50,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:50,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:11:50,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:11:50,773 INFO L87 Difference]: Start difference. First operand 3211 states and 8356 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:53,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:53,680 INFO L93 Difference]: Finished difference Result 4308 states and 11050 transitions. [2021-06-05 20:11:53,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 20:11:53,680 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:11:53,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:53,684 INFO L225 Difference]: With dead ends: 4308 [2021-06-05 20:11:53,684 INFO L226 Difference]: Without dead ends: 4057 [2021-06-05 20:11:53,685 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 2667.4ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 20:11:53,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4057 states. [2021-06-05 20:11:53,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4057 to 3247. [2021-06-05 20:11:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3247 states, 3246 states have (on average 2.592729513247073) internal successors, (8416), 3246 states have internal predecessors, (8416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:53,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 8416 transitions. [2021-06-05 20:11:53,732 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 8416 transitions. Word has length 119 [2021-06-05 20:11:53,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:53,732 INFO L482 AbstractCegarLoop]: Abstraction has 3247 states and 8416 transitions. [2021-06-05 20:11:53,732 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:53,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 8416 transitions. [2021-06-05 20:11:53,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:11:53,736 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:53,736 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:11:53,736 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-06-05 20:11:53,736 INFO L430 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:53,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:53,736 INFO L82 PathProgramCache]: Analyzing trace with hash -2137527907, now seen corresponding path program 135 times [2021-06-05 20:11:53,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:53,737 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322182989] [2021-06-05 20:11:53,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:54,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:54,427 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:54,427 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322182989] [2021-06-05 20:11:54,427 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322182989] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:54,427 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:54,427 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:11:54,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972255331] [2021-06-05 20:11:54,427 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:11:54,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:54,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:11:54,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:11:54,428 INFO L87 Difference]: Start difference. First operand 3247 states and 8416 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:57,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:57,366 INFO L93 Difference]: Finished difference Result 4139 states and 10593 transitions. [2021-06-05 20:11:57,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 20:11:57,366 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:11:57,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:57,370 INFO L225 Difference]: With dead ends: 4139 [2021-06-05 20:11:57,370 INFO L226 Difference]: Without dead ends: 3853 [2021-06-05 20:11:57,370 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 2512.1ms TimeCoverageRelationStatistics Valid=509, Invalid=2683, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 20:11:57,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2021-06-05 20:11:57,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 3043. [2021-06-05 20:11:57,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 3042 states have (on average 2.58974358974359) internal successors, (7878), 3042 states have internal predecessors, (7878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:57,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 7878 transitions. [2021-06-05 20:11:57,420 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 7878 transitions. Word has length 119 [2021-06-05 20:11:57,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:57,420 INFO L482 AbstractCegarLoop]: Abstraction has 3043 states and 7878 transitions. [2021-06-05 20:11:57,420 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:57,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 7878 transitions. [2021-06-05 20:11:57,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:11:57,422 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:57,422 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:11:57,422 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-06-05 20:11:57,422 INFO L430 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:57,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:57,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1480596423, now seen corresponding path program 136 times [2021-06-05 20:11:57,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:57,423 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871896539] [2021-06-05 20:11:57,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:58,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:58,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:58,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871896539] [2021-06-05 20:11:58,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871896539] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:58,058 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:58,058 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:11:58,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346078749] [2021-06-05 20:11:58,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:11:58,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:58,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:11:58,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:11:58,059 INFO L87 Difference]: Start difference. First operand 3043 states and 7878 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:00,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:00,952 INFO L93 Difference]: Finished difference Result 4063 states and 10313 transitions. [2021-06-05 20:12:00,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 20:12:00,952 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:00,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:00,955 INFO L225 Difference]: With dead ends: 4063 [2021-06-05 20:12:00,955 INFO L226 Difference]: Without dead ends: 3858 [2021-06-05 20:12:00,955 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 2490.1ms TimeCoverageRelationStatistics Valid=520, Invalid=2786, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 20:12:00,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2021-06-05 20:12:00,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 2983. [2021-06-05 20:12:00,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2982 states have (on average 2.601609657947686) internal successors, (7758), 2982 states have internal predecessors, (7758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:00,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 7758 transitions. [2021-06-05 20:12:00,988 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 7758 transitions. Word has length 119 [2021-06-05 20:12:00,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:00,988 INFO L482 AbstractCegarLoop]: Abstraction has 2983 states and 7758 transitions. [2021-06-05 20:12:00,988 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:00,988 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 7758 transitions. [2021-06-05 20:12:00,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:00,990 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:00,990 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:00,991 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-06-05 20:12:00,991 INFO L430 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:00,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:00,991 INFO L82 PathProgramCache]: Analyzing trace with hash 198436559, now seen corresponding path program 137 times [2021-06-05 20:12:00,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:00,991 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813550384] [2021-06-05 20:12:00,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:01,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:01,637 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:01,637 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813550384] [2021-06-05 20:12:01,637 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813550384] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:01,637 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:01,637 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:12:01,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241604039] [2021-06-05 20:12:01,637 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:12:01,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:01,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:12:01,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:12:01,638 INFO L87 Difference]: Start difference. First operand 2983 states and 7758 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:03,135 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-06-05 20:12:04,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:04,267 INFO L93 Difference]: Finished difference Result 3389 states and 8711 transitions. [2021-06-05 20:12:04,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:12:04,267 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:04,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:04,270 INFO L225 Difference]: With dead ends: 3389 [2021-06-05 20:12:04,270 INFO L226 Difference]: Without dead ends: 3257 [2021-06-05 20:12:04,270 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 2356.1ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:12:04,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2021-06-05 20:12:04,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 2985. [2021-06-05 20:12:04,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2985 states, 2984 states have (on average 2.6008713136729225) internal successors, (7761), 2984 states have internal predecessors, (7761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:04,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 7761 transitions. [2021-06-05 20:12:04,302 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 7761 transitions. Word has length 119 [2021-06-05 20:12:04,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:04,302 INFO L482 AbstractCegarLoop]: Abstraction has 2985 states and 7761 transitions. [2021-06-05 20:12:04,302 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:04,302 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 7761 transitions. [2021-06-05 20:12:04,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:04,304 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:04,304 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:04,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-06-05 20:12:04,304 INFO L430 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:04,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:04,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1945454933, now seen corresponding path program 138 times [2021-06-05 20:12:04,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:04,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851829539] [2021-06-05 20:12:04,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:04,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:04,978 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:04,978 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851829539] [2021-06-05 20:12:04,978 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851829539] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:04,978 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:04,978 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:12:04,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609793488] [2021-06-05 20:12:04,978 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:12:04,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:04,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:12:04,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:12:04,979 INFO L87 Difference]: Start difference. First operand 2985 states and 7761 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:05,572 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-06-05 20:12:05,855 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-06-05 20:12:06,169 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-06-05 20:12:06,639 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2021-06-05 20:12:06,793 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-06-05 20:12:06,934 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 20:12:08,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:08,475 INFO L93 Difference]: Finished difference Result 3566 states and 9064 transitions. [2021-06-05 20:12:08,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 20:12:08,475 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:08,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:08,478 INFO L225 Difference]: With dead ends: 3566 [2021-06-05 20:12:08,478 INFO L226 Difference]: Without dead ends: 3407 [2021-06-05 20:12:08,479 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 3009.6ms TimeCoverageRelationStatistics Valid=559, Invalid=2747, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 20:12:08,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3407 states. [2021-06-05 20:12:08,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3407 to 2971. [2021-06-05 20:12:08,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2971 states, 2970 states have (on average 2.604040404040404) internal successors, (7734), 2970 states have internal predecessors, (7734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:08,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2971 states to 2971 states and 7734 transitions. [2021-06-05 20:12:08,519 INFO L78 Accepts]: Start accepts. Automaton has 2971 states and 7734 transitions. Word has length 119 [2021-06-05 20:12:08,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:08,519 INFO L482 AbstractCegarLoop]: Abstraction has 2971 states and 7734 transitions. [2021-06-05 20:12:08,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:08,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2971 states and 7734 transitions. [2021-06-05 20:12:08,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:08,521 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:08,522 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:08,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-06-05 20:12:08,522 INFO L430 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:08,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:08,522 INFO L82 PathProgramCache]: Analyzing trace with hash 209238043, now seen corresponding path program 139 times [2021-06-05 20:12:08,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:08,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250480998] [2021-06-05 20:12:08,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:09,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:09,345 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:09,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250480998] [2021-06-05 20:12:09,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250480998] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:09,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:09,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:12:09,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138410203] [2021-06-05 20:12:09,345 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:12:09,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:09,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:12:09,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:12:09,346 INFO L87 Difference]: Start difference. First operand 2971 states and 7734 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:10,347 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-06-05 20:12:10,815 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-06-05 20:12:11,010 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 65 [2021-06-05 20:12:11,269 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-05 20:12:13,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:13,174 INFO L93 Difference]: Finished difference Result 3377 states and 8570 transitions. [2021-06-05 20:12:13,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:12:13,174 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:13,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:13,177 INFO L225 Difference]: With dead ends: 3377 [2021-06-05 20:12:13,178 INFO L226 Difference]: Without dead ends: 3199 [2021-06-05 20:12:13,178 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 3379.4ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:12:13,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3199 states. [2021-06-05 20:12:13,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3199 to 2979. [2021-06-05 20:12:13,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2978 states have (on average 2.6017461383478846) internal successors, (7748), 2978 states have internal predecessors, (7748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:13,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 7748 transitions. [2021-06-05 20:12:13,218 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 7748 transitions. Word has length 119 [2021-06-05 20:12:13,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:13,218 INFO L482 AbstractCegarLoop]: Abstraction has 2979 states and 7748 transitions. [2021-06-05 20:12:13,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:13,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 7748 transitions. [2021-06-05 20:12:13,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:13,221 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:13,221 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:13,221 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-06-05 20:12:13,221 INFO L430 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:13,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:13,221 INFO L82 PathProgramCache]: Analyzing trace with hash 728598813, now seen corresponding path program 140 times [2021-06-05 20:12:13,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:13,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30247564] [2021-06-05 20:12:13,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:14,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:14,131 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:14,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30247564] [2021-06-05 20:12:14,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30247564] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:14,131 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:14,131 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:12:14,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278213363] [2021-06-05 20:12:14,132 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:12:14,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:14,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:12:14,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:12:14,132 INFO L87 Difference]: Start difference. First operand 2979 states and 7748 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:15,076 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-06-05 20:12:15,490 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-06-05 20:12:15,711 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-06-05 20:12:15,901 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-05 20:12:17,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:17,351 INFO L93 Difference]: Finished difference Result 3203 states and 8200 transitions. [2021-06-05 20:12:17,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 20:12:17,351 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:17,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:17,354 INFO L225 Difference]: With dead ends: 3203 [2021-06-05 20:12:17,354 INFO L226 Difference]: Without dead ends: 3071 [2021-06-05 20:12:17,355 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 3071.0ms TimeCoverageRelationStatistics Valid=481, Invalid=2381, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:12:17,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3071 states. [2021-06-05 20:12:17,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3071 to 2981. [2021-06-05 20:12:17,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2981 states, 2980 states have (on average 2.6010067114093958) internal successors, (7751), 2980 states have internal predecessors, (7751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:17,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2981 states to 2981 states and 7751 transitions. [2021-06-05 20:12:17,398 INFO L78 Accepts]: Start accepts. Automaton has 2981 states and 7751 transitions. Word has length 119 [2021-06-05 20:12:17,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:17,398 INFO L482 AbstractCegarLoop]: Abstraction has 2981 states and 7751 transitions. [2021-06-05 20:12:17,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:17,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2981 states and 7751 transitions. [2021-06-05 20:12:17,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:17,401 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:17,402 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:17,402 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-06-05 20:12:17,402 INFO L430 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:17,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:17,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1586516679, now seen corresponding path program 141 times [2021-06-05 20:12:17,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:17,402 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50247831] [2021-06-05 20:12:17,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:18,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:18,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:18,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50247831] [2021-06-05 20:12:18,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50247831] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:18,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:18,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:12:18,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575958774] [2021-06-05 20:12:18,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:12:18,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:18,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:12:18,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:12:18,325 INFO L87 Difference]: Start difference. First operand 2981 states and 7751 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:19,331 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-06-05 20:12:21,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:21,498 INFO L93 Difference]: Finished difference Result 3370 states and 8528 transitions. [2021-06-05 20:12:21,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 20:12:21,499 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:21,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:21,502 INFO L225 Difference]: With dead ends: 3370 [2021-06-05 20:12:21,502 INFO L226 Difference]: Without dead ends: 3181 [2021-06-05 20:12:21,502 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 2928.7ms TimeCoverageRelationStatistics Valid=536, Invalid=2656, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 20:12:21,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3181 states. [2021-06-05 20:12:21,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3181 to 2937. [2021-06-05 20:12:21,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2936 states have (on average 2.6106948228882834) internal successors, (7665), 2936 states have internal predecessors, (7665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:21,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 7665 transitions. [2021-06-05 20:12:21,536 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 7665 transitions. Word has length 119 [2021-06-05 20:12:21,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:21,536 INFO L482 AbstractCegarLoop]: Abstraction has 2937 states and 7665 transitions. [2021-06-05 20:12:21,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:21,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 7665 transitions. [2021-06-05 20:12:21,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:21,538 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:21,538 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:21,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-06-05 20:12:21,539 INFO L430 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:21,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:21,539 INFO L82 PathProgramCache]: Analyzing trace with hash -805736737, now seen corresponding path program 142 times [2021-06-05 20:12:21,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:21,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467779937] [2021-06-05 20:12:21,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:21,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:21,803 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:21,803 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467779937] [2021-06-05 20:12:21,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467779937] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:21,803 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:21,803 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 20:12:21,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843490418] [2021-06-05 20:12:21,804 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 20:12:21,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:21,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 20:12:21,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:12:21,804 INFO L87 Difference]: Start difference. First operand 2937 states and 7665 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:22,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:22,373 INFO L93 Difference]: Finished difference Result 3503 states and 8715 transitions. [2021-06-05 20:12:22,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 20:12:22,373 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:22,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:22,377 INFO L225 Difference]: With dead ends: 3503 [2021-06-05 20:12:22,377 INFO L226 Difference]: Without dead ends: 3447 [2021-06-05 20:12:22,377 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 457.7ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-06-05 20:12:22,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2021-06-05 20:12:22,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 2749. [2021-06-05 20:12:22,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 2748 states have (on average 2.5782387190684135) internal successors, (7085), 2748 states have internal predecessors, (7085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:22,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 7085 transitions. [2021-06-05 20:12:22,418 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 7085 transitions. Word has length 119 [2021-06-05 20:12:22,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:22,418 INFO L482 AbstractCegarLoop]: Abstraction has 2749 states and 7085 transitions. [2021-06-05 20:12:22,419 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:22,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 7085 transitions. [2021-06-05 20:12:22,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:22,421 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:22,421 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:22,422 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-06-05 20:12:22,422 INFO L430 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:22,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:22,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1947976541, now seen corresponding path program 143 times [2021-06-05 20:12:22,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:22,422 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368096539] [2021-06-05 20:12:22,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:23,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:23,259 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:23,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368096539] [2021-06-05 20:12:23,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368096539] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:23,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:23,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:12:23,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419524065] [2021-06-05 20:12:23,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:12:23,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:23,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:12:23,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:12:23,260 INFO L87 Difference]: Start difference. First operand 2749 states and 7085 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:24,533 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:12:24,710 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-06-05 20:12:25,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:25,610 INFO L93 Difference]: Finished difference Result 2870 states and 7294 transitions. [2021-06-05 20:12:25,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:12:25,611 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:25,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:25,613 INFO L225 Difference]: With dead ends: 2870 [2021-06-05 20:12:25,613 INFO L226 Difference]: Without dead ends: 2765 [2021-06-05 20:12:25,613 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2259.2ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:12:25,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2021-06-05 20:12:25,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 2749. [2021-06-05 20:12:25,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 2748 states have (on average 2.576783114992722) internal successors, (7081), 2748 states have internal predecessors, (7081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:25,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 7081 transitions. [2021-06-05 20:12:25,641 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 7081 transitions. Word has length 119 [2021-06-05 20:12:25,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:25,641 INFO L482 AbstractCegarLoop]: Abstraction has 2749 states and 7081 transitions. [2021-06-05 20:12:25,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:25,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 7081 transitions. [2021-06-05 20:12:25,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:25,643 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:25,643 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:25,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-06-05 20:12:25,644 INFO L430 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:25,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:25,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1952394681, now seen corresponding path program 144 times [2021-06-05 20:12:25,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:25,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901353750] [2021-06-05 20:12:25,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:26,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:26,282 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:26,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901353750] [2021-06-05 20:12:26,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901353750] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:26,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:26,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:12:26,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259298074] [2021-06-05 20:12:26,282 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:12:26,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:26,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:12:26,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:12:26,283 INFO L87 Difference]: Start difference. First operand 2749 states and 7081 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:27,261 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 20:12:27,484 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 20:12:28,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:28,929 INFO L93 Difference]: Finished difference Result 3076 states and 7832 transitions. [2021-06-05 20:12:28,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 20:12:28,929 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:28,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:28,932 INFO L225 Difference]: With dead ends: 3076 [2021-06-05 20:12:28,932 INFO L226 Difference]: Without dead ends: 2981 [2021-06-05 20:12:28,933 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 2227.2ms TimeCoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 20:12:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-06-05 20:12:28,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2893. [2021-06-05 20:12:28,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2892 states have (on average 2.576417704011065) internal successors, (7451), 2892 states have internal predecessors, (7451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:28,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 7451 transitions. [2021-06-05 20:12:28,974 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 7451 transitions. Word has length 119 [2021-06-05 20:12:28,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:28,974 INFO L482 AbstractCegarLoop]: Abstraction has 2893 states and 7451 transitions. [2021-06-05 20:12:28,974 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:28,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 7451 transitions. [2021-06-05 20:12:28,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:28,977 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:28,977 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:28,978 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-06-05 20:12:28,978 INFO L430 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:28,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:28,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1867866313, now seen corresponding path program 145 times [2021-06-05 20:12:28,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:28,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850151380] [2021-06-05 20:12:28,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:30,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:30,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:30,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850151380] [2021-06-05 20:12:30,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850151380] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:30,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:30,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:12:30,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743769999] [2021-06-05 20:12:30,044 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:12:30,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:30,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:12:30,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:12:30,045 INFO L87 Difference]: Start difference. First operand 2893 states and 7451 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:30,925 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2021-06-05 20:12:31,073 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-06-05 20:12:31,336 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 20:12:31,596 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 20:12:33,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:33,443 INFO L93 Difference]: Finished difference Result 3299 states and 8335 transitions. [2021-06-05 20:12:33,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 20:12:33,444 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:33,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:33,446 INFO L225 Difference]: With dead ends: 3299 [2021-06-05 20:12:33,446 INFO L226 Difference]: Without dead ends: 2804 [2021-06-05 20:12:33,447 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 3234.8ms TimeCoverageRelationStatistics Valid=502, Invalid=2578, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 20:12:33,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2021-06-05 20:12:33,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2725. [2021-06-05 20:12:33,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2725 states, 2724 states have (on average 2.577459618208517) internal successors, (7021), 2724 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:33,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 7021 transitions. [2021-06-05 20:12:33,486 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 7021 transitions. Word has length 119 [2021-06-05 20:12:33,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:33,486 INFO L482 AbstractCegarLoop]: Abstraction has 2725 states and 7021 transitions. [2021-06-05 20:12:33,486 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:33,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 7021 transitions. [2021-06-05 20:12:33,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:33,489 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:33,489 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:33,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-06-05 20:12:33,489 INFO L430 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:33,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:33,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1423801651, now seen corresponding path program 146 times [2021-06-05 20:12:33,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:33,490 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685320543] [2021-06-05 20:12:33,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:34,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:34,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:34,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685320543] [2021-06-05 20:12:34,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685320543] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:34,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:34,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:12:34,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117823577] [2021-06-05 20:12:34,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:12:34,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:34,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:12:34,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:12:34,321 INFO L87 Difference]: Start difference. First operand 2725 states and 7021 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:35,304 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-06-05 20:12:35,570 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 20:12:35,881 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 20:12:36,270 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-06-05 20:12:36,600 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-06-05 20:12:37,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:37,703 INFO L93 Difference]: Finished difference Result 2837 states and 7216 transitions. [2021-06-05 20:12:37,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 20:12:37,703 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:37,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:37,706 INFO L225 Difference]: With dead ends: 2837 [2021-06-05 20:12:37,706 INFO L226 Difference]: Without dead ends: 2680 [2021-06-05 20:12:37,706 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 3067.5ms TimeCoverageRelationStatistics Valid=464, Invalid=2292, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 20:12:37,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2021-06-05 20:12:37,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 2665. [2021-06-05 20:12:37,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2664 states have (on average 2.591966966966967) internal successors, (6905), 2664 states have internal predecessors, (6905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:37,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 6905 transitions. [2021-06-05 20:12:37,745 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 6905 transitions. Word has length 119 [2021-06-05 20:12:37,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:37,745 INFO L482 AbstractCegarLoop]: Abstraction has 2665 states and 6905 transitions. [2021-06-05 20:12:37,746 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:37,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 6905 transitions. [2021-06-05 20:12:37,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:37,748 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:37,748 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:37,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-06-05 20:12:37,748 INFO L430 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:37,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:37,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1148590635, now seen corresponding path program 147 times [2021-06-05 20:12:37,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:37,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521778859] [2021-06-05 20:12:37,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:38,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:38,426 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:38,426 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521778859] [2021-06-05 20:12:38,426 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521778859] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:38,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:38,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:12:38,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986940690] [2021-06-05 20:12:38,426 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:12:38,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:38,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:12:38,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:12:38,426 INFO L87 Difference]: Start difference. First operand 2665 states and 6905 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:39,358 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2021-06-05 20:12:39,825 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2021-06-05 20:12:40,018 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:12:40,266 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-06-05 20:12:41,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:41,400 INFO L93 Difference]: Finished difference Result 2810 states and 7181 transitions. [2021-06-05 20:12:41,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:12:41,404 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:41,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:41,406 INFO L225 Difference]: With dead ends: 2810 [2021-06-05 20:12:41,406 INFO L226 Difference]: Without dead ends: 2691 [2021-06-05 20:12:41,406 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2571.5ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:12:41,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2021-06-05 20:12:41,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2649. [2021-06-05 20:12:41,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2649 states, 2648 states have (on average 2.596299093655589) internal successors, (6875), 2648 states have internal predecessors, (6875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:41,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 6875 transitions. [2021-06-05 20:12:41,439 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 6875 transitions. Word has length 119 [2021-06-05 20:12:41,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:41,440 INFO L482 AbstractCegarLoop]: Abstraction has 2649 states and 6875 transitions. [2021-06-05 20:12:41,440 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:41,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 6875 transitions. [2021-06-05 20:12:41,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:41,443 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:41,443 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:41,443 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-06-05 20:12:41,443 INFO L430 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:41,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:41,443 INFO L82 PathProgramCache]: Analyzing trace with hash 2063322351, now seen corresponding path program 148 times [2021-06-05 20:12:41,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:41,443 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527740223] [2021-06-05 20:12:41,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:41,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:41,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:41,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527740223] [2021-06-05 20:12:41,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527740223] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:41,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:41,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 20:12:41,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211014887] [2021-06-05 20:12:41,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 20:12:41,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:41,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 20:12:41,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-05 20:12:41,695 INFO L87 Difference]: Start difference. First operand 2649 states and 6875 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:42,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:42,022 INFO L93 Difference]: Finished difference Result 5195 states and 13221 transitions. [2021-06-05 20:12:42,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 20:12:42,022 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:42,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:42,027 INFO L225 Difference]: With dead ends: 5195 [2021-06-05 20:12:42,027 INFO L226 Difference]: Without dead ends: 5195 [2021-06-05 20:12:42,027 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 318.4ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:12:42,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5195 states. [2021-06-05 20:12:42,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5195 to 2819. [2021-06-05 20:12:42,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2818 states have (on average 2.5691980127750176) internal successors, (7240), 2818 states have internal predecessors, (7240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:42,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 7240 transitions. [2021-06-05 20:12:42,068 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 7240 transitions. Word has length 119 [2021-06-05 20:12:42,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:42,068 INFO L482 AbstractCegarLoop]: Abstraction has 2819 states and 7240 transitions. [2021-06-05 20:12:42,068 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:42,068 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 7240 transitions. [2021-06-05 20:12:42,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:42,070 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:42,070 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:42,070 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-06-05 20:12:42,070 INFO L430 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:42,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:42,070 INFO L82 PathProgramCache]: Analyzing trace with hash -792968879, now seen corresponding path program 149 times [2021-06-05 20:12:42,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:42,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452798181] [2021-06-05 20:12:42,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:42,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:42,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:42,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452798181] [2021-06-05 20:12:42,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452798181] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:42,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:42,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:12:42,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326458795] [2021-06-05 20:12:42,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:12:42,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:42,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:12:42,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:12:42,940 INFO L87 Difference]: Start difference. First operand 2819 states and 7240 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:43,969 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2021-06-05 20:12:44,212 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-06-05 20:12:44,529 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-06-05 20:12:46,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:46,682 INFO L93 Difference]: Finished difference Result 4283 states and 10970 transitions. [2021-06-05 20:12:46,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:12:46,683 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:46,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:46,687 INFO L225 Difference]: With dead ends: 4283 [2021-06-05 20:12:46,687 INFO L226 Difference]: Without dead ends: 4117 [2021-06-05 20:12:46,688 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 3200.6ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:12:46,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2021-06-05 20:12:46,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 3251. [2021-06-05 20:12:46,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3251 states, 3250 states have (on average 2.6055384615384614) internal successors, (8468), 3250 states have internal predecessors, (8468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:46,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3251 states to 3251 states and 8468 transitions. [2021-06-05 20:12:46,739 INFO L78 Accepts]: Start accepts. Automaton has 3251 states and 8468 transitions. Word has length 119 [2021-06-05 20:12:46,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:46,740 INFO L482 AbstractCegarLoop]: Abstraction has 3251 states and 8468 transitions. [2021-06-05 20:12:46,740 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:46,740 INFO L276 IsEmpty]: Start isEmpty. Operand 3251 states and 8468 transitions. [2021-06-05 20:12:46,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:46,743 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:46,743 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:46,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-06-05 20:12:46,745 INFO L430 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:46,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:46,745 INFO L82 PathProgramCache]: Analyzing trace with hash 210878319, now seen corresponding path program 150 times [2021-06-05 20:12:46,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:46,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802182641] [2021-06-05 20:12:46,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:47,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:47,626 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:47,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802182641] [2021-06-05 20:12:47,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802182641] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:47,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:47,626 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:12:47,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131025571] [2021-06-05 20:12:47,626 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:12:47,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:47,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:12:47,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:12:47,627 INFO L87 Difference]: Start difference. First operand 3251 states and 8468 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:48,604 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-06-05 20:12:48,848 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-06-05 20:12:49,143 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-06-05 20:12:51,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:51,587 INFO L93 Difference]: Finished difference Result 4555 states and 11728 transitions. [2021-06-05 20:12:51,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:12:51,588 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:51,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:51,591 INFO L225 Difference]: With dead ends: 4555 [2021-06-05 20:12:51,591 INFO L226 Difference]: Without dead ends: 4164 [2021-06-05 20:12:51,591 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 3483.7ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:12:51,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4164 states. [2021-06-05 20:12:51,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4164 to 3311. [2021-06-05 20:12:51,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3311 states, 3310 states have (on average 2.5909365558912385) internal successors, (8576), 3310 states have internal predecessors, (8576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:51,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3311 states to 3311 states and 8576 transitions. [2021-06-05 20:12:51,628 INFO L78 Accepts]: Start accepts. Automaton has 3311 states and 8576 transitions. Word has length 119 [2021-06-05 20:12:51,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:51,628 INFO L482 AbstractCegarLoop]: Abstraction has 3311 states and 8576 transitions. [2021-06-05 20:12:51,628 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:51,628 INFO L276 IsEmpty]: Start isEmpty. Operand 3311 states and 8576 transitions. [2021-06-05 20:12:51,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:51,631 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:51,631 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:51,632 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-06-05 20:12:51,632 INFO L430 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:51,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:51,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1419303683, now seen corresponding path program 151 times [2021-06-05 20:12:51,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:51,632 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444739600] [2021-06-05 20:12:51,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:52,077 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-06-05 20:12:52,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:52,747 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:52,747 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444739600] [2021-06-05 20:12:52,747 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444739600] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:52,747 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:52,747 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:12:52,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552497428] [2021-06-05 20:12:52,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:12:52,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:52,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:12:52,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:12:52,748 INFO L87 Difference]: Start difference. First operand 3311 states and 8576 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:53,662 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-06-05 20:12:53,880 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-06-05 20:12:54,165 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-06-05 20:12:56,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:56,812 INFO L93 Difference]: Finished difference Result 4270 states and 10921 transitions. [2021-06-05 20:12:56,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 20:12:56,812 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:12:56,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:56,816 INFO L225 Difference]: With dead ends: 4270 [2021-06-05 20:12:56,816 INFO L226 Difference]: Without dead ends: 3864 [2021-06-05 20:12:56,817 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 3965.1ms TimeCoverageRelationStatistics Valid=639, Invalid=3143, Unknown=0, NotChecked=0, Total=3782 [2021-06-05 20:12:56,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3864 states. [2021-06-05 20:12:56,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3864 to 3011. [2021-06-05 20:12:56,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3011 states, 3010 states have (on average 2.5887043189368772) internal successors, (7792), 3010 states have internal predecessors, (7792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:56,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3011 states to 3011 states and 7792 transitions. [2021-06-05 20:12:56,860 INFO L78 Accepts]: Start accepts. Automaton has 3011 states and 7792 transitions. Word has length 119 [2021-06-05 20:12:56,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:56,860 INFO L482 AbstractCegarLoop]: Abstraction has 3011 states and 7792 transitions. [2021-06-05 20:12:56,860 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:56,860 INFO L276 IsEmpty]: Start isEmpty. Operand 3011 states and 7792 transitions. [2021-06-05 20:12:56,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:12:56,863 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:56,863 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:12:56,863 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-06-05 20:12:56,863 INFO L430 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:56,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:56,863 INFO L82 PathProgramCache]: Analyzing trace with hash 814202079, now seen corresponding path program 152 times [2021-06-05 20:12:56,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:56,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652167776] [2021-06-05 20:12:56,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:57,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:57,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:57,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652167776] [2021-06-05 20:12:57,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652167776] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:57,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:57,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:12:57,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896257267] [2021-06-05 20:12:57,625 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:12:57,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:57,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:12:57,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:12:57,625 INFO L87 Difference]: Start difference. First operand 3011 states and 7792 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:58,604 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2021-06-05 20:12:58,846 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-06-05 20:12:59,134 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-06-05 20:12:59,696 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-05 20:13:00,127 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-06-05 20:13:01,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:13:01,304 INFO L93 Difference]: Finished difference Result 3627 states and 9214 transitions. [2021-06-05 20:13:01,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:13:01,304 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:13:01,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:13:01,308 INFO L225 Difference]: With dead ends: 3627 [2021-06-05 20:13:01,308 INFO L226 Difference]: Without dead ends: 3447 [2021-06-05 20:13:01,308 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 3194.9ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:13:01,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2021-06-05 20:13:01,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 3005. [2021-06-05 20:13:01,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3005 states, 3004 states have (on average 2.5888814913448734) internal successors, (7777), 3004 states have internal predecessors, (7777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:01,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3005 states to 3005 states and 7777 transitions. [2021-06-05 20:13:01,340 INFO L78 Accepts]: Start accepts. Automaton has 3005 states and 7777 transitions. Word has length 119 [2021-06-05 20:13:01,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:13:01,340 INFO L482 AbstractCegarLoop]: Abstraction has 3005 states and 7777 transitions. [2021-06-05 20:13:01,340 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:01,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3005 states and 7777 transitions. [2021-06-05 20:13:01,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:13:01,343 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:13:01,343 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:13:01,343 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-06-05 20:13:01,343 INFO L430 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:13:01,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:13:01,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1518517393, now seen corresponding path program 153 times [2021-06-05 20:13:01,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:13:01,343 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6451754] [2021-06-05 20:13:01,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:13:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:13:02,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:13:02,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:13:02,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6451754] [2021-06-05 20:13:02,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6451754] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:13:02,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:13:02,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:13:02,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395353725] [2021-06-05 20:13:02,017 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:13:02,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:13:02,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:13:02,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:13:02,017 INFO L87 Difference]: Start difference. First operand 3005 states and 7777 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:03,418 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-06-05 20:13:03,596 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-05 20:13:05,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:13:05,209 INFO L93 Difference]: Finished difference Result 3507 states and 8864 transitions. [2021-06-05 20:13:05,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:13:05,209 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:13:05,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:13:05,213 INFO L225 Difference]: With dead ends: 3507 [2021-06-05 20:13:05,213 INFO L226 Difference]: Without dead ends: 3297 [2021-06-05 20:13:05,213 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2755.8ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:13:05,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2021-06-05 20:13:05,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 2995. [2021-06-05 20:13:05,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2995 states, 2994 states have (on average 2.594522378089512) internal successors, (7768), 2994 states have internal predecessors, (7768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:05,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 7768 transitions. [2021-06-05 20:13:05,255 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 7768 transitions. Word has length 119 [2021-06-05 20:13:05,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:13:05,255 INFO L482 AbstractCegarLoop]: Abstraction has 2995 states and 7768 transitions. [2021-06-05 20:13:05,256 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:05,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 7768 transitions. [2021-06-05 20:13:05,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:13:05,259 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:13:05,259 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:13:05,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-06-05 20:13:05,259 INFO L430 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:13:05,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:13:05,259 INFO L82 PathProgramCache]: Analyzing trace with hash -972990871, now seen corresponding path program 154 times [2021-06-05 20:13:05,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:13:05,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651668135] [2021-06-05 20:13:05,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:13:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:13:06,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:13:06,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:13:06,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651668135] [2021-06-05 20:13:06,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651668135] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:13:06,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:13:06,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:13:06,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784391845] [2021-06-05 20:13:06,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:13:06,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:13:06,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:13:06,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:13:06,186 INFO L87 Difference]: Start difference. First operand 2995 states and 7768 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:06,695 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-06-05 20:13:07,096 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-06-05 20:13:07,333 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-06-05 20:13:07,825 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 20:13:08,072 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 20:13:08,648 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-06-05 20:13:08,792 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-06-05 20:13:09,463 WARN L205 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-06-05 20:13:10,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:13:10,302 INFO L93 Difference]: Finished difference Result 3451 states and 8756 transitions. [2021-06-05 20:13:10,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 20:13:10,303 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:13:10,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:13:10,306 INFO L225 Difference]: With dead ends: 3451 [2021-06-05 20:13:10,306 INFO L226 Difference]: Without dead ends: 3296 [2021-06-05 20:13:10,306 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 3761.5ms TimeCoverageRelationStatistics Valid=604, Invalid=2818, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 20:13:10,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2021-06-05 20:13:10,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 3001. [2021-06-05 20:13:10,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3001 states, 3000 states have (on average 2.591) internal successors, (7773), 3000 states have internal predecessors, (7773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:10,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 7773 transitions. [2021-06-05 20:13:10,347 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 7773 transitions. Word has length 119 [2021-06-05 20:13:10,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:13:10,348 INFO L482 AbstractCegarLoop]: Abstraction has 3001 states and 7773 transitions. [2021-06-05 20:13:10,348 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:10,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 7773 transitions. [2021-06-05 20:13:10,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:13:10,351 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:13:10,351 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:13:10,351 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-06-05 20:13:10,351 INFO L430 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:13:10,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:13:10,351 INFO L82 PathProgramCache]: Analyzing trace with hash -977409011, now seen corresponding path program 155 times [2021-06-05 20:13:10,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:13:10,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991263540] [2021-06-05 20:13:10,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:13:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:13:11,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:13:11,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:13:11,193 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991263540] [2021-06-05 20:13:11,193 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991263540] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:13:11,193 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:13:11,193 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:13:11,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120741807] [2021-06-05 20:13:11,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:13:11,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:13:11,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:13:11,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:13:11,194 INFO L87 Difference]: Start difference. First operand 3001 states and 7773 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:12,183 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:13:12,430 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-06-05 20:13:12,728 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:13:13,960 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-05 20:13:15,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:13:15,434 INFO L93 Difference]: Finished difference Result 4347 states and 11130 transitions. [2021-06-05 20:13:15,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:13:15,434 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:13:15,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:13:15,438 INFO L225 Difference]: With dead ends: 4347 [2021-06-05 20:13:15,439 INFO L226 Difference]: Without dead ends: 4202 [2021-06-05 20:13:15,439 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 3505.7ms TimeCoverageRelationStatistics Valid=579, Invalid=2961, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:13:15,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4202 states. [2021-06-05 20:13:15,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4202 to 3289. [2021-06-05 20:13:15,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3289 states, 3288 states have (on average 2.605535279805353) internal successors, (8567), 3288 states have internal predecessors, (8567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:15,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3289 states to 3289 states and 8567 transitions. [2021-06-05 20:13:15,491 INFO L78 Accepts]: Start accepts. Automaton has 3289 states and 8567 transitions. Word has length 119 [2021-06-05 20:13:15,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:13:15,491 INFO L482 AbstractCegarLoop]: Abstraction has 3289 states and 8567 transitions. [2021-06-05 20:13:15,491 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:15,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3289 states and 8567 transitions. [2021-06-05 20:13:15,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:13:15,494 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:13:15,494 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:13:15,494 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-06-05 20:13:15,495 INFO L430 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:13:15,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:13:15,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1452115313, now seen corresponding path program 156 times [2021-06-05 20:13:15,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:13:15,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692310825] [2021-06-05 20:13:15,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:13:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:13:16,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:13:16,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:13:16,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692310825] [2021-06-05 20:13:16,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692310825] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:13:16,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:13:16,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:13:16,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893957274] [2021-06-05 20:13:16,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:13:16,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:13:16,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:13:16,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:13:16,382 INFO L87 Difference]: Start difference. First operand 3289 states and 8567 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:17,356 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:13:17,626 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-06-05 20:13:17,916 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:13:20,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:13:20,253 INFO L93 Difference]: Finished difference Result 4682 states and 12014 transitions. [2021-06-05 20:13:20,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 20:13:20,253 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:13:20,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:13:20,257 INFO L225 Difference]: With dead ends: 4682 [2021-06-05 20:13:20,257 INFO L226 Difference]: Without dead ends: 3900 [2021-06-05 20:13:20,257 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 3425.0ms TimeCoverageRelationStatistics Valid=655, Invalid=3251, Unknown=0, NotChecked=0, Total=3906 [2021-06-05 20:13:20,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3900 states. [2021-06-05 20:13:20,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3900 to 3025. [2021-06-05 20:13:20,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 3024 states have (on average 2.5823412698412698) internal successors, (7809), 3024 states have internal predecessors, (7809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:20,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 7809 transitions. [2021-06-05 20:13:20,290 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 7809 transitions. Word has length 119 [2021-06-05 20:13:20,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:13:20,290 INFO L482 AbstractCegarLoop]: Abstraction has 3025 states and 7809 transitions. [2021-06-05 20:13:20,290 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:20,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 7809 transitions. [2021-06-05 20:13:20,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:13:20,292 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:13:20,292 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:13:20,292 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-06-05 20:13:20,293 INFO L430 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:13:20,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:13:20,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1896179975, now seen corresponding path program 157 times [2021-06-05 20:13:20,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:13:20,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146337100] [2021-06-05 20:13:20,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:13:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:13:20,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:13:20,975 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:13:20,975 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146337100] [2021-06-05 20:13:20,975 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146337100] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:13:20,975 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:13:20,975 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:13:20,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591565564] [2021-06-05 20:13:20,975 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:13:20,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:13:20,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:13:20,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:13:20,976 INFO L87 Difference]: Start difference. First operand 3025 states and 7809 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:21,904 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-06-05 20:13:22,118 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:13:22,538 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-05 20:13:24,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:13:24,138 INFO L93 Difference]: Finished difference Result 3661 states and 9292 transitions. [2021-06-05 20:13:24,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 20:13:24,138 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:13:24,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:13:24,143 INFO L225 Difference]: With dead ends: 3661 [2021-06-05 20:13:24,143 INFO L226 Difference]: Without dead ends: 3454 [2021-06-05 20:13:24,143 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 2815.6ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 20:13:24,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2021-06-05 20:13:24,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 2965. [2021-06-05 20:13:24,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2964 states have (on average 2.5954790823211877) internal successors, (7693), 2964 states have internal predecessors, (7693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:24,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 7693 transitions. [2021-06-05 20:13:24,200 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 7693 transitions. Word has length 119 [2021-06-05 20:13:24,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:13:24,200 INFO L482 AbstractCegarLoop]: Abstraction has 2965 states and 7693 transitions. [2021-06-05 20:13:24,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:24,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 7693 transitions. [2021-06-05 20:13:24,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:13:24,203 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:13:24,204 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:13:24,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-06-05 20:13:24,204 INFO L430 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:13:24,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:13:24,204 INFO L82 PathProgramCache]: Analyzing trace with hash -652334719, now seen corresponding path program 158 times [2021-06-05 20:13:24,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:13:24,204 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135929048] [2021-06-05 20:13:24,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:13:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:13:24,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:13:24,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:13:24,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135929048] [2021-06-05 20:13:24,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135929048] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:13:24,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:13:24,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 20:13:24,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269573785] [2021-06-05 20:13:24,514 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 20:13:24,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:13:24,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 20:13:24,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:13:24,514 INFO L87 Difference]: Start difference. First operand 2965 states and 7693 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:25,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:13:25,175 INFO L93 Difference]: Finished difference Result 3573 states and 8938 transitions. [2021-06-05 20:13:25,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 20:13:25,175 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:13:25,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:13:25,179 INFO L225 Difference]: With dead ends: 3573 [2021-06-05 20:13:25,179 INFO L226 Difference]: Without dead ends: 3517 [2021-06-05 20:13:25,180 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 570.4ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-06-05 20:13:25,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3517 states. [2021-06-05 20:13:25,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3517 to 2775. [2021-06-05 20:13:25,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2774 states have (on average 2.5847152126892574) internal successors, (7170), 2774 states have internal predecessors, (7170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:25,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 7170 transitions. [2021-06-05 20:13:25,226 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 7170 transitions. Word has length 119 [2021-06-05 20:13:25,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:13:25,226 INFO L482 AbstractCegarLoop]: Abstraction has 2775 states and 7170 transitions. [2021-06-05 20:13:25,226 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:25,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 7170 transitions. [2021-06-05 20:13:25,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:13:25,229 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:13:25,229 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:13:25,229 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-06-05 20:13:25,229 INFO L430 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:13:25,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:13:25,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1816753079, now seen corresponding path program 159 times [2021-06-05 20:13:25,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:13:25,230 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763104861] [2021-06-05 20:13:25,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:13:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:13:26,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:13:26,117 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:13:26,117 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763104861] [2021-06-05 20:13:26,117 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763104861] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:13:26,117 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:13:26,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:13:26,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761624221] [2021-06-05 20:13:26,118 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:13:26,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:13:26,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:13:26,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:13:26,118 INFO L87 Difference]: Start difference. First operand 2775 states and 7170 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:27,509 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-06-05 20:13:27,690 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-06-05 20:13:27,976 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 20:13:29,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:13:29,108 INFO L93 Difference]: Finished difference Result 2918 states and 7427 transitions. [2021-06-05 20:13:29,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:13:29,109 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:13:29,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:13:29,112 INFO L225 Difference]: With dead ends: 2918 [2021-06-05 20:13:29,112 INFO L226 Difference]: Without dead ends: 2815 [2021-06-05 20:13:29,112 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2619.8ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:13:29,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2021-06-05 20:13:29,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2785. [2021-06-05 20:13:29,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2784 states have (on average 2.581537356321839) internal successors, (7187), 2784 states have internal predecessors, (7187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:29,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 7187 transitions. [2021-06-05 20:13:29,150 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 7187 transitions. Word has length 119 [2021-06-05 20:13:29,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:13:29,150 INFO L482 AbstractCegarLoop]: Abstraction has 2785 states and 7187 transitions. [2021-06-05 20:13:29,150 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:29,150 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 7187 transitions. [2021-06-05 20:13:29,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:13:29,153 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:13:29,153 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:13:29,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-06-05 20:13:29,153 INFO L430 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:13:29,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:13:29,154 INFO L82 PathProgramCache]: Analyzing trace with hash -355735893, now seen corresponding path program 160 times [2021-06-05 20:13:29,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:13:29,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174878528] [2021-06-05 20:13:29,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:13:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:13:29,749 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-06-05 20:13:30,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:13:30,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:13:30,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174878528] [2021-06-05 20:13:30,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174878528] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:13:30,160 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:13:30,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:13:30,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687916101] [2021-06-05 20:13:30,160 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:13:30,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:13:30,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:13:30,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:13:30,161 INFO L87 Difference]: Start difference. First operand 2785 states and 7187 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:31,148 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:13:31,822 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-06-05 20:13:32,229 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 20:13:32,386 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-06-05 20:13:32,594 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-06-05 20:13:33,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:13:33,312 INFO L93 Difference]: Finished difference Result 2952 states and 7500 transitions. [2021-06-05 20:13:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 20:13:33,313 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:13:33,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:13:33,316 INFO L225 Difference]: With dead ends: 2952 [2021-06-05 20:13:33,316 INFO L226 Difference]: Without dead ends: 2847 [2021-06-05 20:13:33,317 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 3023.4ms TimeCoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 20:13:33,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2021-06-05 20:13:33,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 2787. [2021-06-05 20:13:33,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2786 states have (on average 2.5807609475951185) internal successors, (7190), 2786 states have internal predecessors, (7190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:33,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 7190 transitions. [2021-06-05 20:13:33,356 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 7190 transitions. Word has length 119 [2021-06-05 20:13:33,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:13:33,356 INFO L482 AbstractCegarLoop]: Abstraction has 2787 states and 7190 transitions. [2021-06-05 20:13:33,356 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:33,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 7190 transitions. [2021-06-05 20:13:33,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:13:33,359 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:13:33,359 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:13:33,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-06-05 20:13:33,359 INFO L430 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:13:33,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:13:33,360 INFO L82 PathProgramCache]: Analyzing trace with hash -769504289, now seen corresponding path program 161 times [2021-06-05 20:13:33,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:13:33,360 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432909442] [2021-06-05 20:13:33,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:13:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:13:34,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:13:34,230 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:13:34,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432909442] [2021-06-05 20:13:34,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432909442] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:13:34,230 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:13:34,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:13:34,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634201866] [2021-06-05 20:13:34,231 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:13:34,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:13:34,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:13:34,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:13:34,231 INFO L87 Difference]: Start difference. First operand 2787 states and 7190 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:35,202 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-06-05 20:13:35,976 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 20:13:36,136 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-06-05 20:13:36,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:13:36,986 INFO L93 Difference]: Finished difference Result 2908 states and 7404 transitions. [2021-06-05 20:13:36,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:13:36,986 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:13:36,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:13:36,989 INFO L225 Difference]: With dead ends: 2908 [2021-06-05 20:13:36,989 INFO L226 Difference]: Without dead ends: 2803 [2021-06-05 20:13:36,989 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2533.9ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:13:36,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2021-06-05 20:13:37,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2779. [2021-06-05 20:13:37,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2779 states, 2778 states have (on average 2.58207343412527) internal successors, (7173), 2778 states have internal predecessors, (7173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:37,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 7173 transitions. [2021-06-05 20:13:37,021 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 7173 transitions. Word has length 119 [2021-06-05 20:13:37,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:13:37,021 INFO L482 AbstractCegarLoop]: Abstraction has 2779 states and 7173 transitions. [2021-06-05 20:13:37,021 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:37,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 7173 transitions. [2021-06-05 20:13:37,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:13:37,023 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:13:37,023 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:13:37,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-06-05 20:13:37,023 INFO L430 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:13:37,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:13:37,024 INFO L82 PathProgramCache]: Analyzing trace with hash -2052036599, now seen corresponding path program 162 times [2021-06-05 20:13:37,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:13:37,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727576828] [2021-06-05 20:13:37,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:13:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:13:37,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:13:37,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:13:37,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727576828] [2021-06-05 20:13:37,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727576828] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:13:37,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:13:37,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:13:37,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41674926] [2021-06-05 20:13:37,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:13:37,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:13:37,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:13:37,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:13:37,749 INFO L87 Difference]: Start difference. First operand 2779 states and 7173 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:38,824 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-06-05 20:13:38,993 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-06-05 20:13:39,858 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2021-06-05 20:13:40,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:13:40,852 INFO L93 Difference]: Finished difference Result 3190 states and 8124 transitions. [2021-06-05 20:13:40,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 20:13:40,852 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:13:40,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:13:40,856 INFO L225 Difference]: With dead ends: 3190 [2021-06-05 20:13:40,856 INFO L226 Difference]: Without dead ends: 3085 [2021-06-05 20:13:40,856 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2736.0ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:13:40,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2021-06-05 20:13:40,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 2815. [2021-06-05 20:13:40,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2814 states have (on average 2.5813788201847903) internal successors, (7264), 2814 states have internal predecessors, (7264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:40,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 7264 transitions. [2021-06-05 20:13:40,898 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 7264 transitions. Word has length 119 [2021-06-05 20:13:40,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:13:40,898 INFO L482 AbstractCegarLoop]: Abstraction has 2815 states and 7264 transitions. [2021-06-05 20:13:40,898 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:40,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 7264 transitions. [2021-06-05 20:13:40,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:13:40,901 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:13:40,901 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:13:40,901 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-06-05 20:13:40,901 INFO L430 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:13:40,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:13:40,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1482659433, now seen corresponding path program 163 times [2021-06-05 20:13:40,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:13:40,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801177011] [2021-06-05 20:13:40,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:13:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:13:41,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:13:41,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:13:41,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801177011] [2021-06-05 20:13:41,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801177011] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:13:41,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:13:41,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:13:41,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33445774] [2021-06-05 20:13:41,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:13:41,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:13:41,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:13:41,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:13:41,660 INFO L87 Difference]: Start difference. First operand 2815 states and 7264 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:42,638 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:13:42,957 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-06-05 20:13:44,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:13:44,796 INFO L93 Difference]: Finished difference Result 3390 states and 8637 transitions. [2021-06-05 20:13:44,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 20:13:44,797 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:13:44,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:13:44,801 INFO L225 Difference]: With dead ends: 3390 [2021-06-05 20:13:44,801 INFO L226 Difference]: Without dead ends: 3295 [2021-06-05 20:13:44,802 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2743.2ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:13:44,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3295 states. [2021-06-05 20:13:44,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3295 to 2983. [2021-06-05 20:13:44,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2982 states have (on average 2.5761234071093226) internal successors, (7682), 2982 states have internal predecessors, (7682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:44,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 7682 transitions. [2021-06-05 20:13:44,845 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 7682 transitions. Word has length 119 [2021-06-05 20:13:44,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:13:44,845 INFO L482 AbstractCegarLoop]: Abstraction has 2983 states and 7682 transitions. [2021-06-05 20:13:44,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:44,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 7682 transitions. [2021-06-05 20:13:44,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:13:44,849 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:13:44,849 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:13:44,849 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-06-05 20:13:44,849 INFO L430 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:13:44,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:13:44,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1007953131, now seen corresponding path program 164 times [2021-06-05 20:13:44,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:13:44,849 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514836324] [2021-06-05 20:13:44,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:13:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:13:45,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:13:45,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:13:45,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514836324] [2021-06-05 20:13:45,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514836324] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:13:45,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:13:45,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:13:45,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370072746] [2021-06-05 20:13:45,651 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:13:45,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:13:45,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:13:45,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:13:45,651 INFO L87 Difference]: Start difference. First operand 2983 states and 7682 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:46,613 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:13:46,934 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-06-05 20:13:47,330 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-06-05 20:13:47,706 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-06-05 20:13:48,179 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-06-05 20:13:49,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:13:49,044 INFO L93 Difference]: Finished difference Result 3613 states and 9140 transitions. [2021-06-05 20:13:49,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 20:13:49,044 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:13:49,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:13:49,048 INFO L225 Difference]: With dead ends: 3613 [2021-06-05 20:13:49,048 INFO L226 Difference]: Without dead ends: 3058 [2021-06-05 20:13:49,049 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 3089.7ms TimeCoverageRelationStatistics Valid=511, Invalid=2681, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 20:13:49,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2021-06-05 20:13:49,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 2755. [2021-06-05 20:13:49,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2754 states have (on average 2.574074074074074) internal successors, (7089), 2754 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:49,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 7089 transitions. [2021-06-05 20:13:49,091 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 7089 transitions. Word has length 119 [2021-06-05 20:13:49,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:13:49,092 INFO L482 AbstractCegarLoop]: Abstraction has 2755 states and 7089 transitions. [2021-06-05 20:13:49,092 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:49,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 7089 transitions. [2021-06-05 20:13:49,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:13:49,095 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:13:49,095 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:13:49,095 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-06-05 20:13:49,095 INFO L430 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:13:49,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:13:49,095 INFO L82 PathProgramCache]: Analyzing trace with hash -469165411, now seen corresponding path program 165 times [2021-06-05 20:13:49,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:13:49,095 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061649134] [2021-06-05 20:13:49,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:13:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:13:49,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:13:49,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:13:49,881 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061649134] [2021-06-05 20:13:49,881 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061649134] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:13:49,881 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:13:49,881 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:13:49,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975231655] [2021-06-05 20:13:49,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:13:49,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:13:49,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:13:49,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:13:49,881 INFO L87 Difference]: Start difference. First operand 2755 states and 7089 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:50,837 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:13:51,141 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-06-05 20:13:51,627 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-06-05 20:13:52,340 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2021-06-05 20:13:52,836 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-06-05 20:13:53,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:13:53,180 INFO L93 Difference]: Finished difference Result 2918 states and 7394 transitions. [2021-06-05 20:13:53,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:13:53,180 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:13:53,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:13:53,183 INFO L225 Difference]: With dead ends: 2918 [2021-06-05 20:13:53,183 INFO L226 Difference]: Without dead ends: 2813 [2021-06-05 20:13:53,184 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 3088.4ms TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:13:53,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2021-06-05 20:13:53,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 2757. [2021-06-05 20:13:53,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2757 states, 2756 states have (on average 2.5732946298984034) internal successors, (7092), 2756 states have internal predecessors, (7092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:53,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2757 states to 2757 states and 7092 transitions. [2021-06-05 20:13:53,223 INFO L78 Accepts]: Start accepts. Automaton has 2757 states and 7092 transitions. Word has length 119 [2021-06-05 20:13:53,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:13:53,223 INFO L482 AbstractCegarLoop]: Abstraction has 2757 states and 7092 transitions. [2021-06-05 20:13:53,223 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:53,223 INFO L276 IsEmpty]: Start isEmpty. Operand 2757 states and 7092 transitions. [2021-06-05 20:13:53,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:13:53,226 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:13:53,226 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:13:53,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-06-05 20:13:53,226 INFO L430 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:13:53,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:13:53,226 INFO L82 PathProgramCache]: Analyzing trace with hash -411083799, now seen corresponding path program 166 times [2021-06-05 20:13:53,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:13:53,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760428112] [2021-06-05 20:13:53,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:13:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:13:54,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:13:54,067 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:13:54,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760428112] [2021-06-05 20:13:54,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760428112] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:13:54,067 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:13:54,067 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:13:54,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985575179] [2021-06-05 20:13:54,068 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:13:54,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:13:54,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:13:54,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:13:54,068 INFO L87 Difference]: Start difference. First operand 2757 states and 7092 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:55,029 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:13:55,332 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-06-05 20:13:55,750 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-06-05 20:13:55,956 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-05 20:13:56,111 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-06-05 20:13:56,891 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-06-05 20:13:57,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:13:57,372 INFO L93 Difference]: Finished difference Result 2876 states and 7301 transitions. [2021-06-05 20:13:57,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 20:13:57,373 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:13:57,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:13:57,376 INFO L225 Difference]: With dead ends: 2876 [2021-06-05 20:13:57,376 INFO L226 Difference]: Without dead ends: 2777 [2021-06-05 20:13:57,376 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 3158.9ms TimeCoverageRelationStatistics Valid=484, Invalid=2378, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:13:57,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2021-06-05 20:13:57,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 2755. [2021-06-05 20:13:57,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2754 states have (on average 2.5737109658678285) internal successors, (7088), 2754 states have internal predecessors, (7088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:57,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 7088 transitions. [2021-06-05 20:13:57,412 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 7088 transitions. Word has length 119 [2021-06-05 20:13:57,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:13:57,412 INFO L482 AbstractCegarLoop]: Abstraction has 2755 states and 7088 transitions. [2021-06-05 20:13:57,412 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:57,412 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 7088 transitions. [2021-06-05 20:13:57,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:13:57,415 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:13:57,415 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:13:57,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-06-05 20:13:57,415 INFO L430 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:13:57,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:13:57,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1011777891, now seen corresponding path program 167 times [2021-06-05 20:13:57,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:13:57,416 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492400001] [2021-06-05 20:13:57,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:13:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:13:58,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:13:58,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:13:58,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492400001] [2021-06-05 20:13:58,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492400001] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:13:58,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:13:58,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:13:58,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007854561] [2021-06-05 20:13:58,361 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:13:58,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:13:58,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:13:58,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:13:58,362 INFO L87 Difference]: Start difference. First operand 2755 states and 7088 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:13:59,328 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-06-05 20:13:59,626 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-06-05 20:13:59,816 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:14:01,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:14:01,264 INFO L93 Difference]: Finished difference Result 3092 states and 7858 transitions. [2021-06-05 20:14:01,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 20:14:01,265 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:14:01,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:14:01,268 INFO L225 Difference]: With dead ends: 3092 [2021-06-05 20:14:01,268 INFO L226 Difference]: Without dead ends: 2997 [2021-06-05 20:14:01,268 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 2879.1ms TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 20:14:01,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2021-06-05 20:14:01,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2899. [2021-06-05 20:14:01,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2899 states, 2898 states have (on average 2.5734989648033126) internal successors, (7458), 2898 states have internal predecessors, (7458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:01,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 7458 transitions. [2021-06-05 20:14:01,296 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 7458 transitions. Word has length 119 [2021-06-05 20:14:01,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:14:01,296 INFO L482 AbstractCegarLoop]: Abstraction has 2899 states and 7458 transitions. [2021-06-05 20:14:01,296 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:01,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 7458 transitions. [2021-06-05 20:14:01,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:14:01,298 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:14:01,299 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:14:01,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-06-05 20:14:01,299 INFO L430 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:14:01,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:14:01,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1486484193, now seen corresponding path program 168 times [2021-06-05 20:14:01,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:14:01,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873589203] [2021-06-05 20:14:01,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:14:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:14:01,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:14:01,971 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:14:01,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873589203] [2021-06-05 20:14:01,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873589203] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:14:01,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:14:01,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:14:01,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243912200] [2021-06-05 20:14:01,973 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:14:01,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:14:01,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:14:01,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:14:01,973 INFO L87 Difference]: Start difference. First operand 2899 states and 7458 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:03,125 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:14:04,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:14:04,698 INFO L93 Difference]: Finished difference Result 3315 states and 8361 transitions. [2021-06-05 20:14:04,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 20:14:04,698 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:14:04,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:14:04,700 INFO L225 Difference]: With dead ends: 3315 [2021-06-05 20:14:04,701 INFO L226 Difference]: Without dead ends: 2820 [2021-06-05 20:14:04,701 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 2506.1ms TimeCoverageRelationStatistics Valid=536, Invalid=2770, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 20:14:04,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2021-06-05 20:14:04,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2731. [2021-06-05 20:14:04,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2731 states, 2730 states have (on average 2.5743589743589745) internal successors, (7028), 2730 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:04,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2731 states to 2731 states and 7028 transitions. [2021-06-05 20:14:04,731 INFO L78 Accepts]: Start accepts. Automaton has 2731 states and 7028 transitions. Word has length 119 [2021-06-05 20:14:04,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:14:04,731 INFO L482 AbstractCegarLoop]: Abstraction has 2731 states and 7028 transitions. [2021-06-05 20:14:04,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:04,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2731 states and 7028 transitions. [2021-06-05 20:14:04,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:14:04,733 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:14:04,733 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:14:04,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-06-05 20:14:04,733 INFO L430 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:14:04,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:14:04,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1930548855, now seen corresponding path program 169 times [2021-06-05 20:14:04,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:14:04,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055209312] [2021-06-05 20:14:04,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:14:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:14:05,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:14:05,406 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:14:05,406 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055209312] [2021-06-05 20:14:05,406 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055209312] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:14:05,406 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:14:05,406 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:14:05,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205633929] [2021-06-05 20:14:05,406 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:14:05,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:14:05,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:14:05,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:14:05,407 INFO L87 Difference]: Start difference. First operand 2731 states and 7028 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:06,574 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 20:14:06,930 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-05 20:14:08,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:14:08,194 INFO L93 Difference]: Finished difference Result 2850 states and 7237 transitions. [2021-06-05 20:14:08,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 20:14:08,194 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:14:08,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:14:08,197 INFO L225 Difference]: With dead ends: 2850 [2021-06-05 20:14:08,197 INFO L226 Difference]: Without dead ends: 2693 [2021-06-05 20:14:08,198 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2540.7ms TimeCoverageRelationStatistics Valid=484, Invalid=2378, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:14:08,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2021-06-05 20:14:08,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 2671. [2021-06-05 20:14:08,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2671 states, 2670 states have (on average 2.58876404494382) internal successors, (6912), 2670 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:08,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2671 states to 2671 states and 6912 transitions. [2021-06-05 20:14:08,234 INFO L78 Accepts]: Start accepts. Automaton has 2671 states and 6912 transitions. Word has length 119 [2021-06-05 20:14:08,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:14:08,234 INFO L482 AbstractCegarLoop]: Abstraction has 2671 states and 6912 transitions. [2021-06-05 20:14:08,234 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:08,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2671 states and 6912 transitions. [2021-06-05 20:14:08,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:14:08,237 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:14:08,237 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:14:08,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-06-05 20:14:08,237 INFO L430 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:14:08,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:14:08,237 INFO L82 PathProgramCache]: Analyzing trace with hash 57708493, now seen corresponding path program 170 times [2021-06-05 20:14:08,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:14:08,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428105823] [2021-06-05 20:14:08,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:14:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:14:09,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:14:09,134 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:14:09,134 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428105823] [2021-06-05 20:14:09,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428105823] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:14:09,135 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:14:09,135 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:14:09,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347928927] [2021-06-05 20:14:09,135 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:14:09,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:14:09,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:14:09,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:14:09,135 INFO L87 Difference]: Start difference. First operand 2671 states and 6912 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:09,854 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-06-05 20:14:10,478 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2021-06-05 20:14:10,661 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-06-05 20:14:10,914 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-05 20:14:12,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:14:12,194 INFO L93 Difference]: Finished difference Result 2825 states and 7191 transitions. [2021-06-05 20:14:12,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:14:12,194 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:14:12,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:14:12,197 INFO L225 Difference]: With dead ends: 2825 [2021-06-05 20:14:12,197 INFO L226 Difference]: Without dead ends: 2671 [2021-06-05 20:14:12,198 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 2883.7ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:14:12,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2021-06-05 20:14:12,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2655. [2021-06-05 20:14:12,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2655 states, 2654 states have (on average 2.593067068575735) internal successors, (6882), 2654 states have internal predecessors, (6882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:12,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 6882 transitions. [2021-06-05 20:14:12,234 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 6882 transitions. Word has length 119 [2021-06-05 20:14:12,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:14:12,235 INFO L482 AbstractCegarLoop]: Abstraction has 2655 states and 6882 transitions. [2021-06-05 20:14:12,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:12,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 6882 transitions. [2021-06-05 20:14:12,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:14:12,237 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:14:12,237 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:14:12,238 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-06-05 20:14:12,238 INFO L430 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:14:12,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:14:12,238 INFO L82 PathProgramCache]: Analyzing trace with hash -2126164897, now seen corresponding path program 171 times [2021-06-05 20:14:12,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:14:12,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086167675] [2021-06-05 20:14:12,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:14:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:14:13,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:14:13,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:14:13,052 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086167675] [2021-06-05 20:14:13,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086167675] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:14:13,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:14:13,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:14:13,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595980862] [2021-06-05 20:14:13,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:14:13,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:14:13,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:14:13,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:14:13,053 INFO L87 Difference]: Start difference. First operand 2655 states and 6882 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:13,720 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2021-06-05 20:14:14,690 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-06-05 20:14:14,890 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-06-05 20:14:15,146 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 20:14:16,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:14:16,346 INFO L93 Difference]: Finished difference Result 2903 states and 7378 transitions. [2021-06-05 20:14:16,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 20:14:16,346 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:14:16,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:14:16,349 INFO L225 Difference]: With dead ends: 2903 [2021-06-05 20:14:16,349 INFO L226 Difference]: Without dead ends: 2765 [2021-06-05 20:14:16,350 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 2909.7ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 20:14:16,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2021-06-05 20:14:16,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 2667. [2021-06-05 20:14:16,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2666 states have (on average 2.589647411852963) internal successors, (6904), 2666 states have internal predecessors, (6904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:16,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 6904 transitions. [2021-06-05 20:14:16,416 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 6904 transitions. Word has length 119 [2021-06-05 20:14:16,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:14:16,416 INFO L482 AbstractCegarLoop]: Abstraction has 2667 states and 6904 transitions. [2021-06-05 20:14:16,416 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:16,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 6904 transitions. [2021-06-05 20:14:16,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:14:16,419 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:14:16,419 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:14:16,419 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-06-05 20:14:16,419 INFO L430 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:14:16,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:14:16,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1606804127, now seen corresponding path program 172 times [2021-06-05 20:14:16,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:14:16,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957848862] [2021-06-05 20:14:16,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:14:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:14:17,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:14:17,229 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:14:17,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957848862] [2021-06-05 20:14:17,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957848862] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:14:17,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:14:17,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 20:14:17,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904386208] [2021-06-05 20:14:17,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 20:14:17,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:14:17,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 20:14:17,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 20:14:17,230 INFO L87 Difference]: Start difference. First operand 2667 states and 6904 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:18,565 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-06-05 20:14:18,816 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-06-05 20:14:18,999 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-05 20:14:19,408 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-06-05 20:14:20,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:14:20,359 INFO L93 Difference]: Finished difference Result 2927 states and 7438 transitions. [2021-06-05 20:14:20,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 20:14:20,359 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 20:14:20,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:14:20,361 INFO L225 Difference]: With dead ends: 2927 [2021-06-05 20:14:20,361 INFO L226 Difference]: Without dead ends: 2795 [2021-06-05 20:14:20,361 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2846.9ms TimeCoverageRelationStatistics Valid=481, Invalid=2381, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 20:14:20,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2021-06-05 20:14:20,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2669. [2021-06-05 20:14:20,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 2668 states have (on average 2.588830584707646) internal successors, (6907), 2668 states have internal predecessors, (6907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:20,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 6907 transitions. [2021-06-05 20:14:20,388 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 6907 transitions. Word has length 119 [2021-06-05 20:14:20,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:14:20,388 INFO L482 AbstractCegarLoop]: Abstraction has 2669 states and 6907 transitions. [2021-06-05 20:14:20,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:14:20,388 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 6907 transitions. [2021-06-05 20:14:20,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 20:14:20,390 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:14:20,390 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:14:20,390 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-06-05 20:14:20,390 INFO L430 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:14:20,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:14:20,391 INFO L82 PathProgramCache]: Analyzing trace with hash 373047677, now seen corresponding path program 173 times [2021-06-05 20:14:20,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:14:20,391 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605921060] [2021-06-05 20:14:20,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:14:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2021-06-05 20:14:20,767 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-06-05 20:14:20,768 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 20:14:20,769 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 20:14:20,772 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 20:14:20,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:14:20 BasicIcfg [2021-06-05 20:14:20,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 20:14:20,773 INFO L168 Benchmark]: Toolchain (without parser) took 791732.60 ms. Allocated memory was 350.2 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 332.4 MB in the beginning and 1.1 GB in the end (delta: -750.1 MB). Peak memory consumption was 312.9 MB. Max. memory is 16.0 GB. [2021-06-05 20:14:20,773 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 350.2 MB. Free memory is still 330.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:14:20,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1381.59 ms. Allocated memory was 350.2 MB in the beginning and 432.0 MB in the end (delta: 81.8 MB). Free memory was 332.2 MB in the beginning and 390.8 MB in the end (delta: -58.6 MB). Peak memory consumption was 88.3 MB. Max. memory is 16.0 GB. [2021-06-05 20:14:20,773 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.45 ms. Allocated memory is still 432.0 MB. Free memory was 390.8 MB in the beginning and 387.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:14:20,773 INFO L168 Benchmark]: Boogie Preprocessor took 63.54 ms. Allocated memory is still 432.0 MB. Free memory was 387.6 MB in the beginning and 384.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-05 20:14:20,773 INFO L168 Benchmark]: RCFGBuilder took 872.16 ms. Allocated memory is still 432.0 MB. Free memory was 384.5 MB in the beginning and 335.2 MB in the end (delta: 49.3 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-06-05 20:14:20,777 INFO L168 Benchmark]: TraceAbstraction took 789326.08 ms. Allocated memory was 432.0 MB in the beginning and 1.4 GB in the end (delta: 981.5 MB). Free memory was 335.2 MB in the beginning and 1.1 GB in the end (delta: -747.3 MB). Peak memory consumption was 235.2 MB. Max. memory is 16.0 GB. [2021-06-05 20:14:20,777 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 350.2 MB. Free memory is still 330.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1381.59 ms. Allocated memory was 350.2 MB in the beginning and 432.0 MB in the end (delta: 81.8 MB). Free memory was 332.2 MB in the beginning and 390.8 MB in the end (delta: -58.6 MB). Peak memory consumption was 88.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 82.45 ms. Allocated memory is still 432.0 MB. Free memory was 390.8 MB in the beginning and 387.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 63.54 ms. Allocated memory is still 432.0 MB. Free memory was 387.6 MB in the beginning and 384.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 872.16 ms. Allocated memory is still 432.0 MB. Free memory was 384.5 MB in the beginning and 335.2 MB in the end (delta: 49.3 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 789326.08 ms. Allocated memory was 432.0 MB in the beginning and 1.4 GB in the end (delta: 981.5 MB). Free memory was 335.2 MB in the beginning and 1.1 GB in the end (delta: -747.3 MB). Peak memory consumption was 235.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 4 procedures, 176 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 789154.5ms, OverallIterations: 215, TraceHistogramMax: 1, EmptinessCheckTime: 1007.8ms, AutomataDifference: 612716.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 399.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 42189 SDtfs, 191119 SDslu, 478213 SDs, 0 SdLazy, 277253 SolverSat, 19220 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 155264.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11554 GetRequests, 705 SyntacticMatches, 464 SemanticMatches, 10385 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95062 ImplicationChecksByTransitivity, 533646.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8253occurred in iteration=4, InterpolantAutomatonStates: 6498, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 14745.4ms AutomataMinimizationTime, 214 MinimizatonAttempts, 194697 StatesRemovedByMinimization, 209 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 454.6ms SsaConstructionTime, 4603.9ms SatisfiabilityAnalysisTime, 152520.9ms InterpolantComputationTime, 24957 NumberOfCodeBlocks, 24957 NumberOfCodeBlocksAsserted, 214 NumberOfCheckSat, 24743 ConstructedInterpolants, 0 QuantifiedInterpolants, 518168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 214 InterpolantComputations, 214 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