/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 20:01:02,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 20:01:02,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 20:01:02,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 20:01:02,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 20:01:02,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 20:01:02,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 20:01:02,325 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 20:01:02,346 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 20:01:02,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 20:01:02,347 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 20:01:02,347 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 20:01:02,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 20:01:02,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 20:01:02,348 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 20:01:02,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 20:01:02,348 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 20:01:02,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 20:01:02,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 20:01:02,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 20:01:02,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 20:01:02,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 20:01:02,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 20:01:02,349 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 20:01:02,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 20:01:02,349 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 20:01:02,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 20:01:02,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 20:01:02,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 20:01:02,350 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 20:01:02,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 20:01:02,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 20:01:02,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 20:01:02,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 20:01:02,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 20:01:02,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 20:01:02,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 20:01:02,351 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 20:01:02,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 20:01:02,351 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 20:01:02,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 20:01:02,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 20:01:02,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 20:01:02,671 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 20:01:02,672 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 20:01:02,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-06-05 20:01:02,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6143c13a/6e1d1fdb67644c5486e42da93f86c427/FLAGa21c0a734 [2021-06-05 20:01:03,363 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 20:01:03,363 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-06-05 20:01:03,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6143c13a/6e1d1fdb67644c5486e42da93f86c427/FLAGa21c0a734 [2021-06-05 20:01:03,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6143c13a/6e1d1fdb67644c5486e42da93f86c427 [2021-06-05 20:01:03,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 20:01:03,577 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 20:01:03,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 20:01:03,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 20:01:03,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 20:01:03,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:01:03" (1/1) ... [2021-06-05 20:01:03,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4810dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:03, skipping insertion in model container [2021-06-05 20:01:03,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:01:03" (1/1) ... [2021-06-05 20:01:03,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 20:01:03,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 20:01:04,380 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2021-06-05 20:01:04,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:01:04,428 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 20:01:04,470 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2021-06-05 20:01:04,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:01:04,792 INFO L208 MainTranslator]: Completed translation [2021-06-05 20:01:04,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:04 WrapperNode [2021-06-05 20:01:04,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 20:01:04,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 20:01:04,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 20:01:04,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 20:01:04,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:04" (1/1) ... [2021-06-05 20:01:04,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:04" (1/1) ... [2021-06-05 20:01:04,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 20:01:04,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 20:01:04,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 20:01:04,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 20:01:04,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:04" (1/1) ... [2021-06-05 20:01:04,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:04" (1/1) ... [2021-06-05 20:01:04,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:04" (1/1) ... [2021-06-05 20:01:04,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:04" (1/1) ... [2021-06-05 20:01:04,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:04" (1/1) ... [2021-06-05 20:01:04,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:04" (1/1) ... [2021-06-05 20:01:04,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:04" (1/1) ... [2021-06-05 20:01:04,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 20:01:04,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 20:01:04,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 20:01:04,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 20:01:04,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:04" (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 20:01:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 20:01:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 20:01:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-05 20:01:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-05 20:01:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 20:01:05,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 20:01:05,050 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-06-05 20:01:05,050 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-06-05 20:01:05,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 20:01:05,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 20:01:05,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 20:01:05,052 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 20:01:05,683 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 20:01:05,683 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-06-05 20:01:05,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:01:05 BoogieIcfgContainer [2021-06-05 20:01:05,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 20:01:05,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 20:01:05,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 20:01:05,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 20:01:05,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 08:01:03" (1/3) ... [2021-06-05 20:01:05,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619594e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:01:05, skipping insertion in model container [2021-06-05 20:01:05,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:04" (2/3) ... [2021-06-05 20:01:05,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619594e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:01:05, skipping insertion in model container [2021-06-05 20:01:05,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:01:05" (3/3) ... [2021-06-05 20:01:05,693 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2021-06-05 20:01:05,699 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 20:01:05,700 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 20:01:05,700 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-06-05 20:01:05,700 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 20:01:05,764 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,765 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,765 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,765 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,765 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,765 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,767 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,767 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,767 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,767 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,767 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,767 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,767 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,767 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,767 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,768 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,768 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,768 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,768 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,768 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,768 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,768 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,768 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,769 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,769 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,769 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,769 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,769 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,769 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,769 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,770 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,770 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,770 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,770 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,770 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,770 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,770 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,771 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,771 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,771 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,771 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,771 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,771 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,771 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,772 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,772 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,772 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,772 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,772 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,772 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,772 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,773 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,773 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,773 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,773 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,773 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,773 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,773 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,774 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,774 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,774 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,774 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,774 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,774 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,775 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,775 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,775 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,775 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,775 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,775 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,775 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,775 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,778 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,778 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,778 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,778 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,778 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,779 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,779 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,779 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,779 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,779 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,779 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,779 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,780 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,781 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,781 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,784 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,785 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,785 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,786 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,789 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,790 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,790 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,790 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,790 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,790 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,791 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,791 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,791 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,791 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,791 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,791 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,792 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,792 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,792 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,792 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,792 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,792 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,792 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,792 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,793 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,793 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,793 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,793 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,793 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,793 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,793 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,794 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,794 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,794 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,794 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,794 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,794 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,794 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,794 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,795 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,796 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,797 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,797 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,797 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,797 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,797 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,797 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,798 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,798 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,798 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,798 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,798 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,805 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,805 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,805 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,805 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,805 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,805 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,806 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,806 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,806 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,806 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,806 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,806 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:05,818 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 20:01:05,837 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-06-05 20:01:05,863 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:01:05,863 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:01:05,863 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:01:05,863 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:01:05,863 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:01:05,863 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:01:05,863 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:01:05,864 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 20:01:05,880 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 167 places, 171 transitions, 364 flow [2021-06-05 20:01:06,280 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9357 states, 9346 states have (on average 2.8477423496683074) internal successors, (26615), 9356 states have internal predecessors, (26615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:06,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 9357 states, 9346 states have (on average 2.8477423496683074) internal successors, (26615), 9356 states have internal predecessors, (26615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:06,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 20:01:06,328 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:06,329 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 20:01:06,329 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 20:01:06,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:06,338 INFO L82 PathProgramCache]: Analyzing trace with hash 4312800, now seen corresponding path program 1 times [2021-06-05 20:01:06,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:06,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087124930] [2021-06-05 20:01:06,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:06,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:06,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087124930] [2021-06-05 20:01:06,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087124930] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:06,780 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:06,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 20:01:06,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149970093] [2021-06-05 20:01:06,784 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 20:01:06,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:06,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 20:01:06,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 20:01:06,817 INFO L87 Difference]: Start difference. First operand has 9357 states, 9346 states have (on average 2.8477423496683074) internal successors, (26615), 9356 states have internal predecessors, (26615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:07,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:07,263 INFO L93 Difference]: Finished difference Result 8904 states and 24865 transitions. [2021-06-05 20:01:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 20:01:07,265 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 20:01:07,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:07,310 INFO L225 Difference]: With dead ends: 8904 [2021-06-05 20:01:07,311 INFO L226 Difference]: Without dead ends: 7312 [2021-06-05 20:01:07,312 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 105.0ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 20:01:07,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7312 states. [2021-06-05 20:01:07,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7312 to 7311. [2021-06-05 20:01:07,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7311 states, 7304 states have (on average 2.7836801752464404) internal successors, (20332), 7310 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:07,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7311 states to 7311 states and 20332 transitions. [2021-06-05 20:01:07,808 INFO L78 Accepts]: Start accepts. Automaton has 7311 states and 20332 transitions. Word has length 36 [2021-06-05 20:01:07,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:07,809 INFO L482 AbstractCegarLoop]: Abstraction has 7311 states and 20332 transitions. [2021-06-05 20:01:07,809 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 20:01:07,809 INFO L276 IsEmpty]: Start isEmpty. Operand 7311 states and 20332 transitions. [2021-06-05 20:01:07,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-06-05 20:01:07,810 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:07,811 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 20:01:07,811 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 20:01:07,811 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 20:01:07,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:07,813 INFO L82 PathProgramCache]: Analyzing trace with hash -334882016, now seen corresponding path program 1 times [2021-06-05 20:01:07,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:07,814 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999262019] [2021-06-05 20:01:07,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:08,101 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 20:01:08,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:08,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999262019] [2021-06-05 20:01:08,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999262019] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:08,102 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:08,104 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 20:01:08,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880617487] [2021-06-05 20:01:08,105 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 20:01:08,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:08,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 20:01:08,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 20:01:08,106 INFO L87 Difference]: Start difference. First operand 7311 states and 20332 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:08,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:08,317 INFO L93 Difference]: Finished difference Result 7313 states and 20334 transitions. [2021-06-05 20:01:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 20:01:08,318 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 20:01:08,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:08,351 INFO L225 Difference]: With dead ends: 7313 [2021-06-05 20:01:08,351 INFO L226 Difference]: Without dead ends: 7313 [2021-06-05 20:01:08,353 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 112.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 20:01:08,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7313 states. [2021-06-05 20:01:08,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7313 to 7309. [2021-06-05 20:01:08,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7303 states have (on average 2.7837874845953716) internal successors, (20330), 7308 states have internal predecessors, (20330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:08,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 20330 transitions. [2021-06-05 20:01:08,594 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 20330 transitions. Word has length 42 [2021-06-05 20:01:08,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:08,594 INFO L482 AbstractCegarLoop]: Abstraction has 7309 states and 20330 transitions. [2021-06-05 20:01:08,595 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 20:01:08,595 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 20330 transitions. [2021-06-05 20:01:08,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 20:01:08,598 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:08,598 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 20:01:08,599 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 20:01:08,599 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 20:01:08,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:08,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1888111070, now seen corresponding path program 1 times [2021-06-05 20:01:08,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:08,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759370361] [2021-06-05 20:01:08,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:08,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:08,768 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:08,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759370361] [2021-06-05 20:01:08,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759370361] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:08,768 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:08,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 20:01:08,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924682679] [2021-06-05 20:01:08,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 20:01:08,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:08,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 20:01:08,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 20:01:08,770 INFO L87 Difference]: Start difference. First operand 7309 states and 20330 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:09,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:09,146 INFO L93 Difference]: Finished difference Result 10560 states and 29296 transitions. [2021-06-05 20:01:09,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 20:01:09,147 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 20:01:09,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:09,253 INFO L225 Difference]: With dead ends: 10560 [2021-06-05 20:01:09,253 INFO L226 Difference]: Without dead ends: 10560 [2021-06-05 20:01:09,253 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 115.8ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-06-05 20:01:09,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10560 states. [2021-06-05 20:01:09,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10560 to 8145. [2021-06-05 20:01:09,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8145 states, 8140 states have (on average 2.784029484029484) internal successors, (22662), 8144 states have internal predecessors, (22662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:09,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8145 states to 8145 states and 22662 transitions. [2021-06-05 20:01:09,546 INFO L78 Accepts]: Start accepts. Automaton has 8145 states and 22662 transitions. Word has length 60 [2021-06-05 20:01:09,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:09,547 INFO L482 AbstractCegarLoop]: Abstraction has 8145 states and 22662 transitions. [2021-06-05 20:01:09,547 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 20:01:09,547 INFO L276 IsEmpty]: Start isEmpty. Operand 8145 states and 22662 transitions. [2021-06-05 20:01:09,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 20:01:09,550 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:09,550 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 20:01:09,550 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 20:01:09,550 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 20:01:09,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:09,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1332255701, now seen corresponding path program 1 times [2021-06-05 20:01:09,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:09,551 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131484336] [2021-06-05 20:01:09,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:09,680 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 20:01:09,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:09,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131484336] [2021-06-05 20:01:09,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131484336] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:09,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:09,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 20:01:09,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145185097] [2021-06-05 20:01:09,682 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 20:01:09,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:09,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 20:01:09,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 20:01:09,686 INFO L87 Difference]: Start difference. First operand 8145 states and 22662 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:10,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:10,029 INFO L93 Difference]: Finished difference Result 11396 states and 31467 transitions. [2021-06-05 20:01:10,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 20:01:10,030 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 20:01:10,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:10,053 INFO L225 Difference]: With dead ends: 11396 [2021-06-05 20:01:10,053 INFO L226 Difference]: Without dead ends: 9607 [2021-06-05 20:01:10,056 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 81.7ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-05 20:01:10,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9607 states. [2021-06-05 20:01:10,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9607 to 9285. [2021-06-05 20:01:10,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9285 states, 9281 states have (on average 2.7852602090291994) internal successors, (25850), 9284 states have internal predecessors, (25850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:10,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9285 states to 9285 states and 25850 transitions. [2021-06-05 20:01:10,395 INFO L78 Accepts]: Start accepts. Automaton has 9285 states and 25850 transitions. Word has length 66 [2021-06-05 20:01:10,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:10,396 INFO L482 AbstractCegarLoop]: Abstraction has 9285 states and 25850 transitions. [2021-06-05 20:01:10,397 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 20:01:10,397 INFO L276 IsEmpty]: Start isEmpty. Operand 9285 states and 25850 transitions. [2021-06-05 20:01:10,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-05 20:01:10,407 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:10,407 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 20:01:10,407 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 20:01:10,407 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 20:01:10,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:10,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1121796277, now seen corresponding path program 1 times [2021-06-05 20:01:10,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:10,408 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20166755] [2021-06-05 20:01:10,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:10,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:10,531 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:10,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20166755] [2021-06-05 20:01:10,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20166755] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:10,532 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:10,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 20:01:10,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458051053] [2021-06-05 20:01:10,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 20:01:10,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:10,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 20:01:10,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 20:01:10,534 INFO L87 Difference]: Start difference. First operand 9285 states and 25850 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:10,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:10,582 INFO L93 Difference]: Finished difference Result 3460 states and 9340 transitions. [2021-06-05 20:01:10,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 20:01:10,583 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 20:01:10,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:10,645 INFO L225 Difference]: With dead ends: 3460 [2021-06-05 20:01:10,645 INFO L226 Difference]: Without dead ends: 3460 [2021-06-05 20:01:10,645 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 32.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 20:01:10,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2021-06-05 20:01:10,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 3460. [2021-06-05 20:01:10,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3460 states, 3458 states have (on average 2.700983227299017) internal successors, (9340), 3459 states have internal predecessors, (9340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:10,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 9340 transitions. [2021-06-05 20:01:10,718 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 9340 transitions. Word has length 80 [2021-06-05 20:01:10,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:10,718 INFO L482 AbstractCegarLoop]: Abstraction has 3460 states and 9340 transitions. [2021-06-05 20:01:10,718 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 20:01:10,718 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 9340 transitions. [2021-06-05 20:01:10,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:10,726 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:10,726 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] [2021-06-05 20:01:10,726 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 20:01:10,726 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 20:01:10,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:10,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1306089738, now seen corresponding path program 1 times [2021-06-05 20:01:10,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:10,727 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332610128] [2021-06-05 20:01:10,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:11,538 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2021-06-05 20:01:11,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:11,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:11,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332610128] [2021-06-05 20:01:11,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332610128] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:11,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:11,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:11,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464590582] [2021-06-05 20:01:11,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:11,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:11,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:11,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:11,695 INFO L87 Difference]: Start difference. First operand 3460 states and 9340 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:12,531 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2021-06-05 20:01:12,726 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:01:12,916 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:01:13,130 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:01:13,422 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:01:13,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:13,600 INFO L93 Difference]: Finished difference Result 4246 states and 11446 transitions. [2021-06-05 20:01:13,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:01:13,600 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:13,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:13,610 INFO L225 Difference]: With dead ends: 4246 [2021-06-05 20:01:13,610 INFO L226 Difference]: Without dead ends: 4246 [2021-06-05 20:01:13,611 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1944.7ms TimeCoverageRelationStatistics Valid=292, Invalid=700, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:01:13,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2021-06-05 20:01:13,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 3964. [2021-06-05 20:01:13,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3964 states, 3962 states have (on average 2.708732963149924) internal successors, (10732), 3963 states have internal predecessors, (10732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:13,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 10732 transitions. [2021-06-05 20:01:13,698 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 10732 transitions. Word has length 114 [2021-06-05 20:01:13,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:13,699 INFO L482 AbstractCegarLoop]: Abstraction has 3964 states and 10732 transitions. [2021-06-05 20:01:13,699 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:13,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 10732 transitions. [2021-06-05 20:01:13,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:13,711 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:13,711 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] [2021-06-05 20:01:13,711 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 20:01:13,712 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 20:01:13,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:13,712 INFO L82 PathProgramCache]: Analyzing trace with hash -433846006, now seen corresponding path program 2 times [2021-06-05 20:01:13,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:13,713 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198266459] [2021-06-05 20:01:13,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:14,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:14,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:14,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198266459] [2021-06-05 20:01:14,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198266459] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:14,322 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:14,322 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 20:01:14,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073420154] [2021-06-05 20:01:14,322 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 20:01:14,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:14,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 20:01:14,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:01:14,323 INFO L87 Difference]: Start difference. First operand 3964 states and 10732 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:15,231 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2021-06-05 20:01:15,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:15,650 INFO L93 Difference]: Finished difference Result 4833 states and 12790 transitions. [2021-06-05 20:01:15,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:01:15,650 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:15,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:15,662 INFO L225 Difference]: With dead ends: 4833 [2021-06-05 20:01:15,662 INFO L226 Difference]: Without dead ends: 4833 [2021-06-05 20:01:15,663 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1158.8ms TimeCoverageRelationStatistics Valid=329, Invalid=793, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:01:15,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4833 states. [2021-06-05 20:01:15,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4833 to 4524. [2021-06-05 20:01:15,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4522 states have (on average 2.680451127819549) internal successors, (12121), 4523 states have internal predecessors, (12121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:15,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 12121 transitions. [2021-06-05 20:01:15,779 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 12121 transitions. Word has length 114 [2021-06-05 20:01:15,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:15,780 INFO L482 AbstractCegarLoop]: Abstraction has 4524 states and 12121 transitions. [2021-06-05 20:01:15,780 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:15,780 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 12121 transitions. [2021-06-05 20:01:15,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:15,791 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:15,791 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] [2021-06-05 20:01:15,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 20:01:15,791 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 20:01:15,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:15,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1490642374, now seen corresponding path program 3 times [2021-06-05 20:01:15,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:15,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386056703] [2021-06-05 20:01:15,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:16,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:16,545 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:16,545 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386056703] [2021-06-05 20:01:16,545 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386056703] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:16,545 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:16,545 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 20:01:16,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241498533] [2021-06-05 20:01:16,546 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 20:01:16,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:16,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 20:01:16,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:01:16,547 INFO L87 Difference]: Start difference. First operand 4524 states and 12121 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:17,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:17,994 INFO L93 Difference]: Finished difference Result 5240 states and 13612 transitions. [2021-06-05 20:01:17,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:01:17,994 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:17,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:18,004 INFO L225 Difference]: With dead ends: 5240 [2021-06-05 20:01:18,004 INFO L226 Difference]: Without dead ends: 5240 [2021-06-05 20:01:18,005 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1335.5ms TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 20:01:18,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5240 states. [2021-06-05 20:01:18,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5240 to 4641. [2021-06-05 20:01:18,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4641 states, 4639 states have (on average 2.6704031041172667) internal successors, (12388), 4640 states have internal predecessors, (12388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:18,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4641 states to 4641 states and 12388 transitions. [2021-06-05 20:01:18,127 INFO L78 Accepts]: Start accepts. Automaton has 4641 states and 12388 transitions. Word has length 114 [2021-06-05 20:01:18,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:18,128 INFO L482 AbstractCegarLoop]: Abstraction has 4641 states and 12388 transitions. [2021-06-05 20:01:18,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:18,128 INFO L276 IsEmpty]: Start isEmpty. Operand 4641 states and 12388 transitions. [2021-06-05 20:01:18,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:18,140 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:18,140 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] [2021-06-05 20:01:18,141 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 20:01:18,141 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 20:01:18,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:18,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1794343348, now seen corresponding path program 4 times [2021-06-05 20:01:18,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:18,142 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050029194] [2021-06-05 20:01:18,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:18,681 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 20:01:18,682 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:18,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050029194] [2021-06-05 20:01:18,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050029194] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:18,683 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:18,683 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 20:01:18,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485660821] [2021-06-05 20:01:18,683 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 20:01:18,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:18,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 20:01:18,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:01:18,684 INFO L87 Difference]: Start difference. First operand 4641 states and 12388 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:19,461 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-06-05 20:01:20,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:20,034 INFO L93 Difference]: Finished difference Result 5618 states and 14458 transitions. [2021-06-05 20:01:20,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:01:20,034 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:20,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:20,042 INFO L225 Difference]: With dead ends: 5618 [2021-06-05 20:01:20,042 INFO L226 Difference]: Without dead ends: 5618 [2021-06-05 20:01:20,043 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1128.1ms TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 20:01:20,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2021-06-05 20:01:20,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 4688. [2021-06-05 20:01:20,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4688 states, 4686 states have (on average 2.667733674775928) internal successors, (12501), 4687 states have internal predecessors, (12501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:20,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4688 states to 4688 states and 12501 transitions. [2021-06-05 20:01:20,148 INFO L78 Accepts]: Start accepts. Automaton has 4688 states and 12501 transitions. Word has length 114 [2021-06-05 20:01:20,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:20,149 INFO L482 AbstractCegarLoop]: Abstraction has 4688 states and 12501 transitions. [2021-06-05 20:01:20,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:20,149 INFO L276 IsEmpty]: Start isEmpty. Operand 4688 states and 12501 transitions. [2021-06-05 20:01:20,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:20,158 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:20,158 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] [2021-06-05 20:01:20,159 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 20:01:20,159 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 20:01:20,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:20,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1346419364, now seen corresponding path program 5 times [2021-06-05 20:01:20,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:20,159 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320849685] [2021-06-05 20:01:20,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:20,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:20,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:20,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320849685] [2021-06-05 20:01:20,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320849685] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:20,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:20,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 20:01:20,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566928179] [2021-06-05 20:01:20,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 20:01:20,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:20,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 20:01:20,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:01:20,724 INFO L87 Difference]: Start difference. First operand 4688 states and 12501 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:21,375 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-06-05 20:01:21,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:21,992 INFO L93 Difference]: Finished difference Result 5759 states and 14797 transitions. [2021-06-05 20:01:21,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:01:21,992 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:21,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:22,000 INFO L225 Difference]: With dead ends: 5759 [2021-06-05 20:01:22,000 INFO L226 Difference]: Without dead ends: 5759 [2021-06-05 20:01:22,001 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1092.0ms TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 20:01:22,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2021-06-05 20:01:22,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 4782. [2021-06-05 20:01:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 4780 states have (on average 2.6625523012552303) internal successors, (12727), 4781 states have internal predecessors, (12727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:22,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 12727 transitions. [2021-06-05 20:01:22,107 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 12727 transitions. Word has length 114 [2021-06-05 20:01:22,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:22,107 INFO L482 AbstractCegarLoop]: Abstraction has 4782 states and 12727 transitions. [2021-06-05 20:01:22,107 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:22,108 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 12727 transitions. [2021-06-05 20:01:22,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:22,117 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:22,117 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] [2021-06-05 20:01:22,118 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 20:01:22,118 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 20:01:22,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:22,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1912760540, now seen corresponding path program 6 times [2021-06-05 20:01:22,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:22,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590160260] [2021-06-05 20:01:22,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:22,563 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 20:01:22,563 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:22,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590160260] [2021-06-05 20:01:22,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590160260] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:22,563 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:22,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 20:01:22,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216860173] [2021-06-05 20:01:22,564 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 20:01:22,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:22,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 20:01:22,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:01:22,565 INFO L87 Difference]: Start difference. First operand 4782 states and 12727 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:23,247 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-06-05 20:01:23,379 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-06-05 20:01:23,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:23,821 INFO L93 Difference]: Finished difference Result 5900 states and 15136 transitions. [2021-06-05 20:01:23,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:01:23,821 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:23,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:23,827 INFO L225 Difference]: With dead ends: 5900 [2021-06-05 20:01:23,827 INFO L226 Difference]: Without dead ends: 5900 [2021-06-05 20:01:23,828 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1089.1ms TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 20:01:23,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5900 states. [2021-06-05 20:01:23,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5900 to 4829. [2021-06-05 20:01:23,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4829 states, 4827 states have (on average 2.6600372902423866) internal successors, (12840), 4828 states have internal predecessors, (12840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:23,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4829 states to 4829 states and 12840 transitions. [2021-06-05 20:01:23,934 INFO L78 Accepts]: Start accepts. Automaton has 4829 states and 12840 transitions. Word has length 114 [2021-06-05 20:01:23,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:23,934 INFO L482 AbstractCegarLoop]: Abstraction has 4829 states and 12840 transitions. [2021-06-05 20:01:23,934 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:23,934 INFO L276 IsEmpty]: Start isEmpty. Operand 4829 states and 12840 transitions. [2021-06-05 20:01:23,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:23,945 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:23,945 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] [2021-06-05 20:01:23,945 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 20:01:23,945 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 20:01:23,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:23,946 INFO L82 PathProgramCache]: Analyzing trace with hash 650659916, now seen corresponding path program 7 times [2021-06-05 20:01:23,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:23,946 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475009156] [2021-06-05 20:01:23,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:24,439 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 20:01:24,440 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:24,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475009156] [2021-06-05 20:01:24,440 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475009156] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:24,440 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:24,440 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 20:01:24,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655330103] [2021-06-05 20:01:24,440 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 20:01:24,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:24,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 20:01:24,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:01:24,441 INFO L87 Difference]: Start difference. First operand 4829 states and 12840 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:25,095 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-06-05 20:01:25,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:25,502 INFO L93 Difference]: Finished difference Result 5302 states and 13818 transitions. [2021-06-05 20:01:25,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 20:01:25,503 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:25,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:25,508 INFO L225 Difference]: With dead ends: 5302 [2021-06-05 20:01:25,508 INFO L226 Difference]: Without dead ends: 5302 [2021-06-05 20:01:25,509 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1039.7ms TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 20:01:25,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2021-06-05 20:01:25,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 4524. [2021-06-05 20:01:25,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4522 states have (on average 2.680451127819549) internal successors, (12121), 4523 states have internal predecessors, (12121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 12121 transitions. [2021-06-05 20:01:25,598 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 12121 transitions. Word has length 114 [2021-06-05 20:01:25,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:25,599 INFO L482 AbstractCegarLoop]: Abstraction has 4524 states and 12121 transitions. [2021-06-05 20:01:25,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:25,599 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 12121 transitions. [2021-06-05 20:01:25,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:25,607 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:25,607 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] [2021-06-05 20:01:25,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 20:01:25,608 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 20:01:25,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:25,608 INFO L82 PathProgramCache]: Analyzing trace with hash 325025038, now seen corresponding path program 8 times [2021-06-05 20:01:25,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:25,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801195940] [2021-06-05 20:01:25,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:26,173 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 20:01:26,173 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:26,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801195940] [2021-06-05 20:01:26,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801195940] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:26,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:26,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:26,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161473003] [2021-06-05 20:01:26,173 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:26,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:26,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:26,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:26,174 INFO L87 Difference]: Start difference. First operand 4524 states and 12121 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:26,855 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2021-06-05 20:01:26,987 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-06-05 20:01:27,138 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:01:27,310 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:01:27,545 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:01:27,804 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:01:27,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:27,944 INFO L93 Difference]: Finished difference Result 8731 states and 23481 transitions. [2021-06-05 20:01:27,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:01:27,945 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:27,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:27,955 INFO L225 Difference]: With dead ends: 8731 [2021-06-05 20:01:27,955 INFO L226 Difference]: Without dead ends: 8731 [2021-06-05 20:01:27,956 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1697.1ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:01:27,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8731 states. [2021-06-05 20:01:28,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8731 to 4580. [2021-06-05 20:01:28,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4580 states, 4578 states have (on average 2.68348623853211) internal successors, (12285), 4579 states have internal predecessors, (12285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:28,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 12285 transitions. [2021-06-05 20:01:28,080 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 12285 transitions. Word has length 114 [2021-06-05 20:01:28,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:28,080 INFO L482 AbstractCegarLoop]: Abstraction has 4580 states and 12285 transitions. [2021-06-05 20:01:28,081 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:28,081 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 12285 transitions. [2021-06-05 20:01:28,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:28,089 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:28,089 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] [2021-06-05 20:01:28,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 20:01:28,090 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 20:01:28,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:28,090 INFO L82 PathProgramCache]: Analyzing trace with hash -2056705522, now seen corresponding path program 9 times [2021-06-05 20:01:28,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:28,090 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225343420] [2021-06-05 20:01:28,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:28,675 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 20:01:28,676 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:28,676 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225343420] [2021-06-05 20:01:28,676 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225343420] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:28,676 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:28,676 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:28,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934341320] [2021-06-05 20:01:28,677 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:28,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:28,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:28,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:28,677 INFO L87 Difference]: Start difference. First operand 4580 states and 12285 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:29,404 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-06-05 20:01:29,559 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:01:29,783 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:01:29,981 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:01:30,199 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:01:30,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:30,333 INFO L93 Difference]: Finished difference Result 8479 states and 22743 transitions. [2021-06-05 20:01:30,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:01:30,333 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:30,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:30,345 INFO L225 Difference]: With dead ends: 8479 [2021-06-05 20:01:30,345 INFO L226 Difference]: Without dead ends: 8479 [2021-06-05 20:01:30,346 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1645.2ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:01:30,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8479 states. [2021-06-05 20:01:30,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8479 to 4594. [2021-06-05 20:01:30,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4594 states, 4592 states have (on average 2.684233449477352) internal successors, (12326), 4593 states have internal predecessors, (12326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:30,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4594 states to 4594 states and 12326 transitions. [2021-06-05 20:01:30,455 INFO L78 Accepts]: Start accepts. Automaton has 4594 states and 12326 transitions. Word has length 114 [2021-06-05 20:01:30,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:30,456 INFO L482 AbstractCegarLoop]: Abstraction has 4594 states and 12326 transitions. [2021-06-05 20:01:30,456 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:30,456 INFO L276 IsEmpty]: Start isEmpty. Operand 4594 states and 12326 transitions. [2021-06-05 20:01:30,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:30,465 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:30,465 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, 1] [2021-06-05 20:01:30,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 20:01:30,465 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 20:01:30,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:30,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1149788588, now seen corresponding path program 10 times [2021-06-05 20:01:30,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:30,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11403908] [2021-06-05 20:01:30,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:31,064 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 20:01:31,064 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:31,064 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11403908] [2021-06-05 20:01:31,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11403908] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:31,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:31,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:31,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67719573] [2021-06-05 20:01:31,065 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:31,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:31,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:31,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:31,066 INFO L87 Difference]: Start difference. First operand 4594 states and 12326 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:31,860 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:01:32,037 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:01:32,231 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:01:32,432 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:01:32,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:32,567 INFO L93 Difference]: Finished difference Result 7977 states and 21077 transitions. [2021-06-05 20:01:32,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:01:32,567 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:32,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:32,576 INFO L225 Difference]: With dead ends: 7977 [2021-06-05 20:01:32,576 INFO L226 Difference]: Without dead ends: 7977 [2021-06-05 20:01:32,576 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1513.9ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:01:32,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7977 states. [2021-06-05 20:01:32,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7977 to 4692. [2021-06-05 20:01:32,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4692 states, 4690 states have (on average 2.6714285714285713) internal successors, (12529), 4691 states have internal predecessors, (12529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:32,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4692 states to 4692 states and 12529 transitions. [2021-06-05 20:01:32,662 INFO L78 Accepts]: Start accepts. Automaton has 4692 states and 12529 transitions. Word has length 114 [2021-06-05 20:01:32,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:32,663 INFO L482 AbstractCegarLoop]: Abstraction has 4692 states and 12529 transitions. [2021-06-05 20:01:32,663 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:32,663 INFO L276 IsEmpty]: Start isEmpty. Operand 4692 states and 12529 transitions. [2021-06-05 20:01:32,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:32,671 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:32,672 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] [2021-06-05 20:01:32,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 20:01:32,672 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 20:01:32,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:32,672 INFO L82 PathProgramCache]: Analyzing trace with hash -9117170, now seen corresponding path program 11 times [2021-06-05 20:01:32,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:32,673 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589067780] [2021-06-05 20:01:32,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:33,130 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 20:01:33,131 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:33,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589067780] [2021-06-05 20:01:33,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589067780] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:33,133 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:33,133 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 20:01:33,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390578248] [2021-06-05 20:01:33,134 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 20:01:33,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:33,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 20:01:33,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:01:33,135 INFO L87 Difference]: Start difference. First operand 4692 states and 12529 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:34,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:34,404 INFO L93 Difference]: Finished difference Result 6412 states and 16826 transitions. [2021-06-05 20:01:34,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 20:01:34,404 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:34,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:34,412 INFO L225 Difference]: With dead ends: 6412 [2021-06-05 20:01:34,412 INFO L226 Difference]: Without dead ends: 6412 [2021-06-05 20:01:34,412 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1070.7ms TimeCoverageRelationStatistics Valid=329, Invalid=793, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 20:01:34,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2021-06-05 20:01:34,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 4842. [2021-06-05 20:01:34,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4842 states, 4840 states have (on average 2.671694214876033) internal successors, (12931), 4841 states have internal predecessors, (12931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:34,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4842 states to 4842 states and 12931 transitions. [2021-06-05 20:01:34,482 INFO L78 Accepts]: Start accepts. Automaton has 4842 states and 12931 transitions. Word has length 114 [2021-06-05 20:01:34,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:34,482 INFO L482 AbstractCegarLoop]: Abstraction has 4842 states and 12931 transitions. [2021-06-05 20:01:34,482 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:34,482 INFO L276 IsEmpty]: Start isEmpty. Operand 4842 states and 12931 transitions. [2021-06-05 20:01:34,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:34,489 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:34,489 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] [2021-06-05 20:01:34,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 20:01:34,489 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 20:01:34,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:34,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1506201982, now seen corresponding path program 1 times [2021-06-05 20:01:34,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:34,490 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529481875] [2021-06-05 20:01:34,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:35,289 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 20:01:35,290 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:35,290 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529481875] [2021-06-05 20:01:35,290 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529481875] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:35,290 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:35,290 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:01:35,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866492814] [2021-06-05 20:01:35,291 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-05 20:01:35,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:35,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-05 20:01:35,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2021-06-05 20:01:35,291 INFO L87 Difference]: Start difference. First operand 4842 states and 12931 transitions. Second operand has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:39,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:39,072 INFO L93 Difference]: Finished difference Result 11566 states and 31075 transitions. [2021-06-05 20:01:39,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 20:01:39,073 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:39,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:39,084 INFO L225 Difference]: With dead ends: 11566 [2021-06-05 20:01:39,084 INFO L226 Difference]: Without dead ends: 11481 [2021-06-05 20:01:39,085 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 2682.3ms TimeCoverageRelationStatistics Valid=960, Invalid=3732, Unknown=0, NotChecked=0, Total=4692 [2021-06-05 20:01:39,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11481 states. [2021-06-05 20:01:39,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11481 to 8109. [2021-06-05 20:01:39,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8109 states, 8107 states have (on average 2.685703712840755) internal successors, (21773), 8108 states have internal predecessors, (21773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:39,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8109 states to 8109 states and 21773 transitions. [2021-06-05 20:01:39,208 INFO L78 Accepts]: Start accepts. Automaton has 8109 states and 21773 transitions. Word has length 114 [2021-06-05 20:01:39,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:39,208 INFO L482 AbstractCegarLoop]: Abstraction has 8109 states and 21773 transitions. [2021-06-05 20:01:39,208 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:39,208 INFO L276 IsEmpty]: Start isEmpty. Operand 8109 states and 21773 transitions. [2021-06-05 20:01:39,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:39,218 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:39,218 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] [2021-06-05 20:01:39,218 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 20:01:39,219 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 20:01:39,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:39,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1116270854, now seen corresponding path program 12 times [2021-06-05 20:01:39,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:39,219 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939471686] [2021-06-05 20:01:39,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:39,715 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 20:01:39,715 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:39,715 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939471686] [2021-06-05 20:01:39,715 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939471686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:39,715 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:39,715 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 20:01:39,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645916179] [2021-06-05 20:01:39,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 20:01:39,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:39,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 20:01:39,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:01:39,717 INFO L87 Difference]: Start difference. First operand 8109 states and 21773 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:41,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:41,003 INFO L93 Difference]: Finished difference Result 11359 states and 29724 transitions. [2021-06-05 20:01:41,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:01:41,004 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:41,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:41,018 INFO L225 Difference]: With dead ends: 11359 [2021-06-05 20:01:41,018 INFO L226 Difference]: Without dead ends: 11359 [2021-06-05 20:01:41,019 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1111.5ms TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 20:01:41,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11359 states. [2021-06-05 20:01:41,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11359 to 8214. [2021-06-05 20:01:41,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8214 states, 8212 states have (on average 2.681685338528982) internal successors, (22022), 8213 states have internal predecessors, (22022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:41,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8214 states to 8214 states and 22022 transitions. [2021-06-05 20:01:41,169 INFO L78 Accepts]: Start accepts. Automaton has 8214 states and 22022 transitions. Word has length 114 [2021-06-05 20:01:41,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:41,169 INFO L482 AbstractCegarLoop]: Abstraction has 8214 states and 22022 transitions. [2021-06-05 20:01:41,169 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:41,169 INFO L276 IsEmpty]: Start isEmpty. Operand 8214 states and 22022 transitions. [2021-06-05 20:01:41,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:41,177 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:41,177 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] [2021-06-05 20:01:41,178 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 20:01:41,178 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 20:01:41,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:41,178 INFO L82 PathProgramCache]: Analyzing trace with hash -53792276, now seen corresponding path program 13 times [2021-06-05 20:01:41,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:41,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039977497] [2021-06-05 20:01:41,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:41,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:41,682 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:41,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039977497] [2021-06-05 20:01:41,683 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039977497] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:41,683 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:41,683 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:41,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082040717] [2021-06-05 20:01:41,683 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:41,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:41,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:41,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:41,684 INFO L87 Difference]: Start difference. First operand 8214 states and 22022 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:42,384 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-06-05 20:01:42,569 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:01:42,774 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:01:43,019 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:01:43,220 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:01:43,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:43,351 INFO L93 Difference]: Finished difference Result 13047 states and 34842 transitions. [2021-06-05 20:01:43,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:01:43,353 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:43,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:43,371 INFO L225 Difference]: With dead ends: 13047 [2021-06-05 20:01:43,372 INFO L226 Difference]: Without dead ends: 13047 [2021-06-05 20:01:43,372 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1633.3ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:01:43,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13047 states. [2021-06-05 20:01:43,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13047 to 8214. [2021-06-05 20:01:43,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8214 states, 8212 states have (on average 2.681685338528982) internal successors, (22022), 8213 states have internal predecessors, (22022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:43,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8214 states to 8214 states and 22022 transitions. [2021-06-05 20:01:43,529 INFO L78 Accepts]: Start accepts. Automaton has 8214 states and 22022 transitions. Word has length 114 [2021-06-05 20:01:43,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:43,529 INFO L482 AbstractCegarLoop]: Abstraction has 8214 states and 22022 transitions. [2021-06-05 20:01:43,529 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:43,529 INFO L276 IsEmpty]: Start isEmpty. Operand 8214 states and 22022 transitions. [2021-06-05 20:01:43,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:43,537 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:43,538 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] [2021-06-05 20:01:43,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 20:01:43,538 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 20:01:43,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:43,538 INFO L82 PathProgramCache]: Analyzing trace with hash 286452082, now seen corresponding path program 14 times [2021-06-05 20:01:43,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:43,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978841735] [2021-06-05 20:01:43,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:44,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:44,018 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:44,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978841735] [2021-06-05 20:01:44,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978841735] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:44,018 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:44,018 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:44,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500558545] [2021-06-05 20:01:44,019 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:44,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:44,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:44,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:44,019 INFO L87 Difference]: Start difference. First operand 8214 states and 22022 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:44,813 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:01:44,984 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:01:45,206 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:01:45,407 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:01:45,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:45,526 INFO L93 Difference]: Finished difference Result 9491 states and 25105 transitions. [2021-06-05 20:01:45,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:01:45,526 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:45,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:45,535 INFO L225 Difference]: With dead ends: 9491 [2021-06-05 20:01:45,536 INFO L226 Difference]: Without dead ends: 9491 [2021-06-05 20:01:45,536 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1461.1ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:01:45,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9491 states. [2021-06-05 20:01:45,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9491 to 6576. [2021-06-05 20:01:45,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6576 states, 6574 states have (on average 2.648919987830849) internal successors, (17414), 6575 states have internal predecessors, (17414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:45,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6576 states to 6576 states and 17414 transitions. [2021-06-05 20:01:45,635 INFO L78 Accepts]: Start accepts. Automaton has 6576 states and 17414 transitions. Word has length 114 [2021-06-05 20:01:45,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:45,635 INFO L482 AbstractCegarLoop]: Abstraction has 6576 states and 17414 transitions. [2021-06-05 20:01:45,635 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:45,635 INFO L276 IsEmpty]: Start isEmpty. Operand 6576 states and 17414 transitions. [2021-06-05 20:01:45,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:45,642 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:45,642 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] [2021-06-05 20:01:45,642 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 20:01:45,642 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 20:01:45,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:45,643 INFO L82 PathProgramCache]: Analyzing trace with hash 533718860, now seen corresponding path program 15 times [2021-06-05 20:01:45,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:45,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64202289] [2021-06-05 20:01:45,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:46,088 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 20:01:46,088 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:46,088 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64202289] [2021-06-05 20:01:46,088 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64202289] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:46,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:46,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:46,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964635524] [2021-06-05 20:01:46,089 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:46,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:46,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:46,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:46,092 INFO L87 Difference]: Start difference. First operand 6576 states and 17414 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:46,879 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:01:47,036 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:01:47,229 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:01:47,427 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:01:47,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:47,617 INFO L93 Difference]: Finished difference Result 13133 states and 34661 transitions. [2021-06-05 20:01:47,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:01:47,618 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:47,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:47,635 INFO L225 Difference]: With dead ends: 13133 [2021-06-05 20:01:47,636 INFO L226 Difference]: Without dead ends: 13133 [2021-06-05 20:01:47,636 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1410.6ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:01:47,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13133 states. [2021-06-05 20:01:47,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13133 to 6664. [2021-06-05 20:01:47,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6664 states, 6662 states have (on average 2.652356649654758) internal successors, (17670), 6663 states have internal predecessors, (17670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:47,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6664 states to 6664 states and 17670 transitions. [2021-06-05 20:01:47,786 INFO L78 Accepts]: Start accepts. Automaton has 6664 states and 17670 transitions. Word has length 114 [2021-06-05 20:01:47,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:47,786 INFO L482 AbstractCegarLoop]: Abstraction has 6664 states and 17670 transitions. [2021-06-05 20:01:47,786 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:47,787 INFO L276 IsEmpty]: Start isEmpty. Operand 6664 states and 17670 transitions. [2021-06-05 20:01:47,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:47,793 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:47,793 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] [2021-06-05 20:01:47,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 20:01:47,794 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 20:01:47,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:47,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1848011700, now seen corresponding path program 16 times [2021-06-05 20:01:47,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:47,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212680366] [2021-06-05 20:01:47,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:48,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:48,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:48,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212680366] [2021-06-05 20:01:48,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212680366] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:48,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:48,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:48,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589614889] [2021-06-05 20:01:48,220 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:48,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:48,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:48,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:48,222 INFO L87 Difference]: Start difference. First operand 6664 states and 17670 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:49,038 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:01:49,219 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:01:49,392 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:01:49,590 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:01:49,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:49,734 INFO L93 Difference]: Finished difference Result 15661 states and 41210 transitions. [2021-06-05 20:01:49,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:01:49,735 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:49,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:49,750 INFO L225 Difference]: With dead ends: 15661 [2021-06-05 20:01:49,750 INFO L226 Difference]: Without dead ends: 15661 [2021-06-05 20:01:49,750 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1418.8ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:01:49,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15661 states. [2021-06-05 20:01:49,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15661 to 6680. [2021-06-05 20:01:49,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6680 states, 6678 states have (on average 2.652890086852351) internal successors, (17716), 6679 states have internal predecessors, (17716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:49,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6680 states to 6680 states and 17716 transitions. [2021-06-05 20:01:49,874 INFO L78 Accepts]: Start accepts. Automaton has 6680 states and 17716 transitions. Word has length 114 [2021-06-05 20:01:49,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:49,874 INFO L482 AbstractCegarLoop]: Abstraction has 6680 states and 17716 transitions. [2021-06-05 20:01:49,875 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:49,875 INFO L276 IsEmpty]: Start isEmpty. Operand 6680 states and 17716 transitions. [2021-06-05 20:01:49,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:49,881 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:49,881 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] [2021-06-05 20:01:49,882 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 20:01:49,882 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 20:01:49,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:49,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1358482410, now seen corresponding path program 17 times [2021-06-05 20:01:49,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:49,882 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479552056] [2021-06-05 20:01:49,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:50,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:50,356 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:50,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479552056] [2021-06-05 20:01:50,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479552056] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:50,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:50,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:50,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463798630] [2021-06-05 20:01:50,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:50,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:50,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:50,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:50,358 INFO L87 Difference]: Start difference. First operand 6680 states and 17716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:50,984 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-06-05 20:01:51,155 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 20:01:51,336 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:01:51,509 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:01:51,720 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:01:51,918 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:01:52,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:52,073 INFO L93 Difference]: Finished difference Result 14001 states and 36610 transitions. [2021-06-05 20:01:52,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:01:52,073 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:52,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:52,087 INFO L225 Difference]: With dead ends: 14001 [2021-06-05 20:01:52,087 INFO L226 Difference]: Without dead ends: 14001 [2021-06-05 20:01:52,088 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1592.0ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:01:52,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14001 states. [2021-06-05 20:01:52,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14001 to 6652. [2021-06-05 20:01:52,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6652 states, 6650 states have (on average 2.6490225563909773) internal successors, (17616), 6651 states have internal predecessors, (17616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:52,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6652 states to 6652 states and 17616 transitions. [2021-06-05 20:01:52,210 INFO L78 Accepts]: Start accepts. Automaton has 6652 states and 17616 transitions. Word has length 114 [2021-06-05 20:01:52,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:52,211 INFO L482 AbstractCegarLoop]: Abstraction has 6652 states and 17616 transitions. [2021-06-05 20:01:52,211 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:52,211 INFO L276 IsEmpty]: Start isEmpty. Operand 6652 states and 17616 transitions. [2021-06-05 20:01:52,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:52,216 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:52,217 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] [2021-06-05 20:01:52,217 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 20:01:52,217 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 20:01:52,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:52,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1526265076, now seen corresponding path program 18 times [2021-06-05 20:01:52,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:52,217 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298477604] [2021-06-05 20:01:52,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:52,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:52,612 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:52,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298477604] [2021-06-05 20:01:52,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298477604] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:52,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:52,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:52,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860245872] [2021-06-05 20:01:52,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:52,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:52,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:52,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:52,613 INFO L87 Difference]: Start difference. First operand 6652 states and 17616 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:53,430 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:01:53,606 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:01:53,782 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:01:53,975 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:01:54,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:54,115 INFO L93 Difference]: Finished difference Result 12763 states and 33601 transitions. [2021-06-05 20:01:54,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:01:54,115 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:54,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:54,128 INFO L225 Difference]: With dead ends: 12763 [2021-06-05 20:01:54,129 INFO L226 Difference]: Without dead ends: 12763 [2021-06-05 20:01:54,129 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1416.1ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:01:54,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12763 states. [2021-06-05 20:01:54,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12763 to 6682. [2021-06-05 20:01:54,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6682 states, 6680 states have (on average 2.6501497005988024) internal successors, (17703), 6681 states have internal predecessors, (17703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:54,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6682 states to 6682 states and 17703 transitions. [2021-06-05 20:01:54,256 INFO L78 Accepts]: Start accepts. Automaton has 6682 states and 17703 transitions. Word has length 114 [2021-06-05 20:01:54,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:54,256 INFO L482 AbstractCegarLoop]: Abstraction has 6682 states and 17703 transitions. [2021-06-05 20:01:54,256 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:54,256 INFO L276 IsEmpty]: Start isEmpty. Operand 6682 states and 17703 transitions. [2021-06-05 20:01:54,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:54,265 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:54,265 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] [2021-06-05 20:01:54,266 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 20:01:54,266 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 20:01:54,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:54,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1680229034, now seen corresponding path program 19 times [2021-06-05 20:01:54,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:54,266 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819409681] [2021-06-05 20:01:54,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:54,667 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 20:01:54,668 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:54,668 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819409681] [2021-06-05 20:01:54,668 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819409681] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:54,668 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:54,668 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:54,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603704726] [2021-06-05 20:01:54,668 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:54,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:54,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:54,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:54,669 INFO L87 Difference]: Start difference. First operand 6682 states and 17703 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:55,492 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:01:55,651 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:01:55,889 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:01:56,086 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:01:56,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:56,241 INFO L93 Difference]: Finished difference Result 13576 states and 35405 transitions. [2021-06-05 20:01:56,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:01:56,241 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:56,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:56,256 INFO L225 Difference]: With dead ends: 13576 [2021-06-05 20:01:56,257 INFO L226 Difference]: Without dead ends: 13576 [2021-06-05 20:01:56,257 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1441.8ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:01:56,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13576 states. [2021-06-05 20:01:56,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13576 to 6666. [2021-06-05 20:01:56,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6666 states, 6664 states have (on average 2.649609843937575) internal successors, (17657), 6665 states have internal predecessors, (17657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:56,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6666 states to 6666 states and 17657 transitions. [2021-06-05 20:01:56,390 INFO L78 Accepts]: Start accepts. Automaton has 6666 states and 17657 transitions. Word has length 114 [2021-06-05 20:01:56,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:56,391 INFO L482 AbstractCegarLoop]: Abstraction has 6666 states and 17657 transitions. [2021-06-05 20:01:56,391 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:56,391 INFO L276 IsEmpty]: Start isEmpty. Operand 6666 states and 17657 transitions. [2021-06-05 20:01:56,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:56,398 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:56,398 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] [2021-06-05 20:01:56,398 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 20:01:56,398 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 20:01:56,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:56,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1816874802, now seen corresponding path program 20 times [2021-06-05 20:01:56,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:56,398 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584102109] [2021-06-05 20:01:56,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:56,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:56,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:56,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584102109] [2021-06-05 20:01:56,783 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584102109] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:56,783 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:56,783 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:56,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719217910] [2021-06-05 20:01:56,784 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:56,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:56,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:56,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:56,784 INFO L87 Difference]: Start difference. First operand 6666 states and 17657 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:57,559 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:01:57,719 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:01:57,933 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:01:58,128 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:01:58,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:58,271 INFO L93 Difference]: Finished difference Result 12902 states and 33818 transitions. [2021-06-05 20:01:58,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:01:58,271 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:01:58,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:58,285 INFO L225 Difference]: With dead ends: 12902 [2021-06-05 20:01:58,286 INFO L226 Difference]: Without dead ends: 12902 [2021-06-05 20:01:58,286 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1380.3ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:01:58,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12902 states. [2021-06-05 20:01:58,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12902 to 6680. [2021-06-05 20:01:58,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6680 states, 6678 states have (on average 2.6501946690625937) internal successors, (17698), 6679 states have internal predecessors, (17698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:58,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6680 states to 6680 states and 17698 transitions. [2021-06-05 20:01:58,422 INFO L78 Accepts]: Start accepts. Automaton has 6680 states and 17698 transitions. Word has length 114 [2021-06-05 20:01:58,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:58,423 INFO L482 AbstractCegarLoop]: Abstraction has 6680 states and 17698 transitions. [2021-06-05 20:01:58,423 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:58,423 INFO L276 IsEmpty]: Start isEmpty. Operand 6680 states and 17698 transitions. [2021-06-05 20:01:58,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:01:58,430 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:58,430 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] [2021-06-05 20:01:58,430 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 20:01:58,430 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 20:01:58,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:58,431 INFO L82 PathProgramCache]: Analyzing trace with hash -2065421782, now seen corresponding path program 21 times [2021-06-05 20:01:58,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:58,431 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967639072] [2021-06-05 20:01:58,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:58,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:01:58,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:58,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967639072] [2021-06-05 20:01:58,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967639072] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:58,788 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:58,788 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:01:58,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763795025] [2021-06-05 20:01:58,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:01:58,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:58,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:01:58,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:01:58,789 INFO L87 Difference]: Start difference. First operand 6680 states and 17698 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:01:59,537 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:01:59,708 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:01:59,880 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:00,076 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:00,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:00,201 INFO L93 Difference]: Finished difference Result 10249 states and 27058 transitions. [2021-06-05 20:02:00,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:00,201 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:00,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:00,212 INFO L225 Difference]: With dead ends: 10249 [2021-06-05 20:02:00,212 INFO L226 Difference]: Without dead ends: 10249 [2021-06-05 20:02:00,213 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1338.3ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:00,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10249 states. [2021-06-05 20:02:00,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10249 to 6764. [2021-06-05 20:02:00,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6764 states, 6762 states have (on average 2.653652765454008) internal successors, (17944), 6763 states have internal predecessors, (17944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:00,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6764 states to 6764 states and 17944 transitions. [2021-06-05 20:02:00,325 INFO L78 Accepts]: Start accepts. Automaton has 6764 states and 17944 transitions. Word has length 114 [2021-06-05 20:02:00,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:00,325 INFO L482 AbstractCegarLoop]: Abstraction has 6764 states and 17944 transitions. [2021-06-05 20:02:00,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:00,325 INFO L276 IsEmpty]: Start isEmpty. Operand 6764 states and 17944 transitions. [2021-06-05 20:02:00,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:00,332 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:00,333 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] [2021-06-05 20:02:00,333 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 20:02:00,333 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 20:02:00,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:00,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1068406510, now seen corresponding path program 2 times [2021-06-05 20:02:00,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:00,334 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19807616] [2021-06-05 20:02:00,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:01,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:01,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:01,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19807616] [2021-06-05 20:02:01,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19807616] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:01,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:01,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:02:01,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139120362] [2021-06-05 20:02:01,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-05 20:02:01,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:01,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-05 20:02:01,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2021-06-05 20:02:01,081 INFO L87 Difference]: Start difference. First operand 6764 states and 17944 transitions. Second operand has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:05,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:05,471 INFO L93 Difference]: Finished difference Result 11039 states and 28924 transitions. [2021-06-05 20:02:05,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-05 20:02:05,471 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:05,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:05,481 INFO L225 Difference]: With dead ends: 11039 [2021-06-05 20:02:05,481 INFO L226 Difference]: Without dead ends: 10934 [2021-06-05 20:02:05,482 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 993 ImplicationChecksByTransitivity, 2868.4ms TimeCoverageRelationStatistics Valid=1066, Invalid=4046, Unknown=0, NotChecked=0, Total=5112 [2021-06-05 20:02:05,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2021-06-05 20:02:05,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 8083. [2021-06-05 20:02:05,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8083 states, 8081 states have (on average 2.658458111619849) internal successors, (21483), 8082 states have internal predecessors, (21483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:05,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8083 states to 8083 states and 21483 transitions. [2021-06-05 20:02:05,618 INFO L78 Accepts]: Start accepts. Automaton has 8083 states and 21483 transitions. Word has length 114 [2021-06-05 20:02:05,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:05,618 INFO L482 AbstractCegarLoop]: Abstraction has 8083 states and 21483 transitions. [2021-06-05 20:02:05,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:05,618 INFO L276 IsEmpty]: Start isEmpty. Operand 8083 states and 21483 transitions. [2021-06-05 20:02:05,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:05,626 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:05,626 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] [2021-06-05 20:02:05,626 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 20:02:05,626 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 20:02:05,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:05,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1458337638, now seen corresponding path program 22 times [2021-06-05 20:02:05,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:05,627 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503671380] [2021-06-05 20:02:05,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:06,040 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 20:02:06,040 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:06,040 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503671380] [2021-06-05 20:02:06,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503671380] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:06,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:06,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 20:02:06,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896129398] [2021-06-05 20:02:06,041 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 20:02:06,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:06,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 20:02:06,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:02:06,042 INFO L87 Difference]: Start difference. First operand 8083 states and 21483 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:06,760 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-06-05 20:02:07,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:07,274 INFO L93 Difference]: Finished difference Result 9579 states and 24648 transitions. [2021-06-05 20:02:07,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:02:07,275 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:07,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:07,285 INFO L225 Difference]: With dead ends: 9579 [2021-06-05 20:02:07,285 INFO L226 Difference]: Without dead ends: 9579 [2021-06-05 20:02:07,285 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1079.0ms TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 20:02:07,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9579 states. [2021-06-05 20:02:07,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9579 to 8068. [2021-06-05 20:02:07,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8068 states, 8066 states have (on average 2.6619142077857676) internal successors, (21471), 8067 states have internal predecessors, (21471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:07,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8068 states to 8068 states and 21471 transitions. [2021-06-05 20:02:07,422 INFO L78 Accepts]: Start accepts. Automaton has 8068 states and 21471 transitions. Word has length 114 [2021-06-05 20:02:07,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:07,423 INFO L482 AbstractCegarLoop]: Abstraction has 8068 states and 21471 transitions. [2021-06-05 20:02:07,423 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:07,423 INFO L276 IsEmpty]: Start isEmpty. Operand 8068 states and 21471 transitions. [2021-06-05 20:02:07,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:07,430 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:07,430 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] [2021-06-05 20:02:07,430 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 20:02:07,431 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 20:02:07,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:07,431 INFO L82 PathProgramCache]: Analyzing trace with hash 439040622, now seen corresponding path program 23 times [2021-06-05 20:02:07,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:07,431 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346191432] [2021-06-05 20:02:07,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:07,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:07,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:07,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346191432] [2021-06-05 20:02:07,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346191432] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:07,856 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:07,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:07,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59370208] [2021-06-05 20:02:07,857 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:07,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:07,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:07,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:07,858 INFO L87 Difference]: Start difference. First operand 8068 states and 21471 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:08,623 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:02:08,774 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:02:08,969 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:09,171 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:09,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:09,334 INFO L93 Difference]: Finished difference Result 18855 states and 49905 transitions. [2021-06-05 20:02:09,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:09,334 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:09,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:09,355 INFO L225 Difference]: With dead ends: 18855 [2021-06-05 20:02:09,355 INFO L226 Difference]: Without dead ends: 18855 [2021-06-05 20:02:09,355 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1395.1ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:09,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18855 states. [2021-06-05 20:02:09,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18855 to 8158. [2021-06-05 20:02:09,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8158 states, 8156 states have (on average 2.664541441883276) internal successors, (21732), 8157 states have internal predecessors, (21732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:09,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8158 states to 8158 states and 21732 transitions. [2021-06-05 20:02:09,526 INFO L78 Accepts]: Start accepts. Automaton has 8158 states and 21732 transitions. Word has length 114 [2021-06-05 20:02:09,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:09,526 INFO L482 AbstractCegarLoop]: Abstraction has 8158 states and 21732 transitions. [2021-06-05 20:02:09,526 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:09,526 INFO L276 IsEmpty]: Start isEmpty. Operand 8158 states and 21732 transitions. [2021-06-05 20:02:09,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:09,533 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:09,534 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] [2021-06-05 20:02:09,534 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 20:02:09,534 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 20:02:09,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:09,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1942689938, now seen corresponding path program 24 times [2021-06-05 20:02:09,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:09,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626104912] [2021-06-05 20:02:09,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:09,988 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 20:02:09,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:09,989 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626104912] [2021-06-05 20:02:09,989 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626104912] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:09,989 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:09,989 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:09,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702568651] [2021-06-05 20:02:09,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:09,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:09,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:09,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:09,991 INFO L87 Difference]: Start difference. First operand 8158 states and 21732 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:10,654 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-06-05 20:02:10,798 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:02:10,979 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:11,157 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:11,385 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:11,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:11,548 INFO L93 Difference]: Finished difference Result 18867 states and 49839 transitions. [2021-06-05 20:02:11,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:11,548 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:11,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:11,568 INFO L225 Difference]: With dead ends: 18867 [2021-06-05 20:02:11,568 INFO L226 Difference]: Without dead ends: 18867 [2021-06-05 20:02:11,569 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1478.1ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:11,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18867 states. [2021-06-05 20:02:11,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18867 to 8188. [2021-06-05 20:02:11,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8188 states, 8186 states have (on average 2.665404348888346) internal successors, (21819), 8187 states have internal predecessors, (21819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:11,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8188 states to 8188 states and 21819 transitions. [2021-06-05 20:02:11,736 INFO L78 Accepts]: Start accepts. Automaton has 8188 states and 21819 transitions. Word has length 114 [2021-06-05 20:02:11,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:11,736 INFO L482 AbstractCegarLoop]: Abstraction has 8188 states and 21819 transitions. [2021-06-05 20:02:11,737 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:11,737 INFO L276 IsEmpty]: Start isEmpty. Operand 8188 states and 21819 transitions. [2021-06-05 20:02:11,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:11,745 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:11,745 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] [2021-06-05 20:02:11,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 20:02:11,745 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 20:02:11,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:11,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1263804172, now seen corresponding path program 25 times [2021-06-05 20:02:11,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:11,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002456611] [2021-06-05 20:02:11,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:12,154 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 20:02:12,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:12,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002456611] [2021-06-05 20:02:12,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002456611] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:12,154 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:12,154 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:12,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596535291] [2021-06-05 20:02:12,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:12,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:12,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:12,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:12,155 INFO L87 Difference]: Start difference. First operand 8188 states and 21819 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:12,924 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:02:13,103 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:13,295 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:02:13,507 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:02:13,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:13,674 INFO L93 Difference]: Finished difference Result 18001 states and 47041 transitions. [2021-06-05 20:02:13,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:13,675 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:13,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:13,694 INFO L225 Difference]: With dead ends: 18001 [2021-06-05 20:02:13,695 INFO L226 Difference]: Without dead ends: 18001 [2021-06-05 20:02:13,695 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1407.7ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:13,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18001 states. [2021-06-05 20:02:13,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18001 to 8098. [2021-06-05 20:02:13,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8098 states, 8096 states have (on average 2.662796442687747) internal successors, (21558), 8097 states have internal predecessors, (21558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:13,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8098 states to 8098 states and 21558 transitions. [2021-06-05 20:02:13,860 INFO L78 Accepts]: Start accepts. Automaton has 8098 states and 21558 transitions. Word has length 114 [2021-06-05 20:02:13,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:13,860 INFO L482 AbstractCegarLoop]: Abstraction has 8098 states and 21558 transitions. [2021-06-05 20:02:13,860 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:13,860 INFO L276 IsEmpty]: Start isEmpty. Operand 8098 states and 21558 transitions. [2021-06-05 20:02:13,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:13,869 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:13,869 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] [2021-06-05 20:02:13,869 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 20:02:13,869 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 20:02:13,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:13,869 INFO L82 PathProgramCache]: Analyzing trace with hash 60223308, now seen corresponding path program 26 times [2021-06-05 20:02:13,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:13,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202788139] [2021-06-05 20:02:13,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:14,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:14,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:14,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202788139] [2021-06-05 20:02:14,263 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202788139] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:14,264 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:14,264 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:14,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889589556] [2021-06-05 20:02:14,264 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:14,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:14,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:14,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:14,265 INFO L87 Difference]: Start difference. First operand 8098 states and 21558 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:15,035 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:02:15,182 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:02:15,376 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:15,577 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:15,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:15,709 INFO L93 Difference]: Finished difference Result 13688 states and 36021 transitions. [2021-06-05 20:02:15,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:15,710 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:15,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:15,724 INFO L225 Difference]: With dead ends: 13688 [2021-06-05 20:02:15,725 INFO L226 Difference]: Without dead ends: 13688 [2021-06-05 20:02:15,725 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1350.9ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:15,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13688 states. [2021-06-05 20:02:15,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13688 to 8068. [2021-06-05 20:02:15,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8068 states, 8066 states have (on average 2.6619142077857676) internal successors, (21471), 8067 states have internal predecessors, (21471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:15,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8068 states to 8068 states and 21471 transitions. [2021-06-05 20:02:15,866 INFO L78 Accepts]: Start accepts. Automaton has 8068 states and 21471 transitions. Word has length 114 [2021-06-05 20:02:15,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:15,866 INFO L482 AbstractCegarLoop]: Abstraction has 8068 states and 21471 transitions. [2021-06-05 20:02:15,866 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:15,866 INFO L276 IsEmpty]: Start isEmpty. Operand 8068 states and 21471 transitions. [2021-06-05 20:02:15,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:15,874 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:15,875 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] [2021-06-05 20:02:15,875 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 20:02:15,875 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 20:02:15,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:15,875 INFO L82 PathProgramCache]: Analyzing trace with hash 33138314, now seen corresponding path program 27 times [2021-06-05 20:02:15,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:15,875 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438599641] [2021-06-05 20:02:15,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:16,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:16,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:16,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438599641] [2021-06-05 20:02:16,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438599641] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:16,348 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:16,348 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:16,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808475288] [2021-06-05 20:02:16,348 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:16,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:16,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:16,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:16,349 INFO L87 Difference]: Start difference. First operand 8068 states and 21471 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:17,144 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:02:17,323 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:02:17,519 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:17,721 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:17,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:17,883 INFO L93 Difference]: Finished difference Result 16591 states and 43642 transitions. [2021-06-05 20:02:17,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:17,884 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:17,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:17,902 INFO L225 Difference]: With dead ends: 16591 [2021-06-05 20:02:17,902 INFO L226 Difference]: Without dead ends: 16591 [2021-06-05 20:02:17,902 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1468.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:17,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16591 states. [2021-06-05 20:02:18,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16591 to 8124. [2021-06-05 20:02:18,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8124 states, 8122 states have (on average 2.663752770253632) internal successors, (21635), 8123 states have internal predecessors, (21635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:18,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8124 states to 8124 states and 21635 transitions. [2021-06-05 20:02:18,061 INFO L78 Accepts]: Start accepts. Automaton has 8124 states and 21635 transitions. Word has length 114 [2021-06-05 20:02:18,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:18,062 INFO L482 AbstractCegarLoop]: Abstraction has 8124 states and 21635 transitions. [2021-06-05 20:02:18,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:18,062 INFO L276 IsEmpty]: Start isEmpty. Operand 8124 states and 21635 transitions. [2021-06-05 20:02:18,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:18,071 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:18,071 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] [2021-06-05 20:02:18,071 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 20:02:18,071 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 20:02:18,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:18,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1946375050, now seen corresponding path program 28 times [2021-06-05 20:02:18,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:18,072 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662805732] [2021-06-05 20:02:18,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:18,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:18,494 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:18,494 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662805732] [2021-06-05 20:02:18,494 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662805732] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:18,494 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:18,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:18,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245135847] [2021-06-05 20:02:18,495 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:18,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:18,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:18,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:18,495 INFO L87 Difference]: Start difference. First operand 8124 states and 21635 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:19,252 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:02:19,430 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:19,605 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:19,802 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:19,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:19,955 INFO L93 Difference]: Finished difference Result 16603 states and 43576 transitions. [2021-06-05 20:02:19,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:19,955 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:19,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:19,973 INFO L225 Difference]: With dead ends: 16603 [2021-06-05 20:02:19,973 INFO L226 Difference]: Without dead ends: 16603 [2021-06-05 20:02:19,973 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1401.3ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:20,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16603 states. [2021-06-05 20:02:20,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16603 to 8138. [2021-06-05 20:02:20,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8138 states, 8136 states have (on average 2.6642084562438546) internal successors, (21676), 8137 states have internal predecessors, (21676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:20,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8138 states to 8138 states and 21676 transitions. [2021-06-05 20:02:20,127 INFO L78 Accepts]: Start accepts. Automaton has 8138 states and 21676 transitions. Word has length 114 [2021-06-05 20:02:20,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:20,127 INFO L482 AbstractCegarLoop]: Abstraction has 8138 states and 21676 transitions. [2021-06-05 20:02:20,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:20,127 INFO L276 IsEmpty]: Start isEmpty. Operand 8138 states and 21676 transitions. [2021-06-05 20:02:20,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:20,135 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:20,135 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] [2021-06-05 20:02:20,135 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 20:02:20,135 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 20:02:20,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:20,135 INFO L82 PathProgramCache]: Analyzing trace with hash 857901864, now seen corresponding path program 29 times [2021-06-05 20:02:20,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:20,135 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753520228] [2021-06-05 20:02:20,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:20,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:20,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753520228] [2021-06-05 20:02:20,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753520228] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:20,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:20,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:20,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838829388] [2021-06-05 20:02:20,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:20,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:20,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:20,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:20,609 INFO L87 Difference]: Start difference. First operand 8138 states and 21676 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:21,411 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:02:21,585 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:21,773 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:02:21,965 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:02:22,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:22,108 INFO L93 Difference]: Finished difference Result 15737 states and 40778 transitions. [2021-06-05 20:02:22,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:22,109 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:22,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:22,126 INFO L225 Difference]: With dead ends: 15737 [2021-06-05 20:02:22,126 INFO L226 Difference]: Without dead ends: 15737 [2021-06-05 20:02:22,126 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1491.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:22,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15737 states. [2021-06-05 20:02:22,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15737 to 7936. [2021-06-05 20:02:22,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7936 states, 7934 states have (on average 2.6585581043609783) internal successors, (21093), 7935 states have internal predecessors, (21093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:22,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7936 states to 7936 states and 21093 transitions. [2021-06-05 20:02:22,266 INFO L78 Accepts]: Start accepts. Automaton has 7936 states and 21093 transitions. Word has length 114 [2021-06-05 20:02:22,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:22,266 INFO L482 AbstractCegarLoop]: Abstraction has 7936 states and 21093 transitions. [2021-06-05 20:02:22,267 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:22,267 INFO L276 IsEmpty]: Start isEmpty. Operand 7936 states and 21093 transitions. [2021-06-05 20:02:22,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:22,275 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:22,275 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] [2021-06-05 20:02:22,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 20:02:22,275 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 20:02:22,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:22,276 INFO L82 PathProgramCache]: Analyzing trace with hash -345679000, now seen corresponding path program 30 times [2021-06-05 20:02:22,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:22,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403428083] [2021-06-05 20:02:22,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:22,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:22,757 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:22,757 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403428083] [2021-06-05 20:02:22,757 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403428083] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:22,757 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:22,757 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:22,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044735132] [2021-06-05 20:02:22,759 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:22,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:22,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:22,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:22,760 INFO L87 Difference]: Start difference. First operand 7936 states and 21093 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:23,555 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:02:23,703 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:02:23,905 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:24,110 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:24,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:24,259 INFO L93 Difference]: Finished difference Result 15915 states and 41412 transitions. [2021-06-05 20:02:24,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:24,259 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:24,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:24,275 INFO L225 Difference]: With dead ends: 15915 [2021-06-05 20:02:24,275 INFO L226 Difference]: Without dead ends: 15915 [2021-06-05 20:02:24,276 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1432.9ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:24,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15915 states. [2021-06-05 20:02:24,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15915 to 7906. [2021-06-05 20:02:24,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7906 states, 7904 states have (on average 2.6576417004048585) internal successors, (21006), 7905 states have internal predecessors, (21006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7906 states to 7906 states and 21006 transitions. [2021-06-05 20:02:24,409 INFO L78 Accepts]: Start accepts. Automaton has 7906 states and 21006 transitions. Word has length 114 [2021-06-05 20:02:24,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:24,410 INFO L482 AbstractCegarLoop]: Abstraction has 7906 states and 21006 transitions. [2021-06-05 20:02:24,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:24,410 INFO L276 IsEmpty]: Start isEmpty. Operand 7906 states and 21006 transitions. [2021-06-05 20:02:24,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:24,416 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:24,416 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] [2021-06-05 20:02:24,416 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 20:02:24,416 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 20:02:24,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:24,417 INFO L82 PathProgramCache]: Analyzing trace with hash -5434642, now seen corresponding path program 31 times [2021-06-05 20:02:24,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:24,417 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485008372] [2021-06-05 20:02:24,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:24,841 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 20:02:24,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:24,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485008372] [2021-06-05 20:02:24,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485008372] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:24,842 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:24,842 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:24,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902048637] [2021-06-05 20:02:24,842 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:24,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:24,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:24,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:24,843 INFO L87 Difference]: Start difference. First operand 7906 states and 21006 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:25,659 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:02:25,810 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:02:26,006 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:26,209 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:26,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:26,340 INFO L93 Difference]: Finished difference Result 11341 states and 29538 transitions. [2021-06-05 20:02:26,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:26,341 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:26,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:26,352 INFO L225 Difference]: With dead ends: 11341 [2021-06-05 20:02:26,353 INFO L226 Difference]: Without dead ends: 11341 [2021-06-05 20:02:26,353 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1414.3ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:26,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11341 states. [2021-06-05 20:02:26,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11341 to 7306. [2021-06-05 20:02:26,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7306 states, 7304 states have (on average 2.6521084337349397) internal successors, (19371), 7305 states have internal predecessors, (19371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:26,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7306 states to 7306 states and 19371 transitions. [2021-06-05 20:02:26,463 INFO L78 Accepts]: Start accepts. Automaton has 7306 states and 19371 transitions. Word has length 114 [2021-06-05 20:02:26,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:26,464 INFO L482 AbstractCegarLoop]: Abstraction has 7306 states and 19371 transitions. [2021-06-05 20:02:26,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:26,464 INFO L276 IsEmpty]: Start isEmpty. Operand 7306 states and 19371 transitions. [2021-06-05 20:02:26,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:26,470 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:26,470 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] [2021-06-05 20:02:26,470 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 20:02:26,470 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 20:02:26,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:26,471 INFO L82 PathProgramCache]: Analyzing trace with hash 79385358, now seen corresponding path program 32 times [2021-06-05 20:02:26,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:26,471 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292866411] [2021-06-05 20:02:26,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:26,903 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 20:02:26,903 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:26,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292866411] [2021-06-05 20:02:26,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292866411] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:26,903 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:26,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:26,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274450322] [2021-06-05 20:02:26,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:26,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:26,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:26,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:26,904 INFO L87 Difference]: Start difference. First operand 7306 states and 19371 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:27,738 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:02:27,890 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:02:28,080 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:28,281 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:28,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:28,449 INFO L93 Difference]: Finished difference Result 20447 states and 54112 transitions. [2021-06-05 20:02:28,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:28,450 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:28,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:28,472 INFO L225 Difference]: With dead ends: 20447 [2021-06-05 20:02:28,472 INFO L226 Difference]: Without dead ends: 20447 [2021-06-05 20:02:28,472 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1439.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:28,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20447 states. [2021-06-05 20:02:28,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20447 to 7442. [2021-06-05 20:02:28,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7442 states, 7440 states have (on average 2.6565860215053765) internal successors, (19765), 7441 states have internal predecessors, (19765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:28,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7442 states to 7442 states and 19765 transitions. [2021-06-05 20:02:28,650 INFO L78 Accepts]: Start accepts. Automaton has 7442 states and 19765 transitions. Word has length 114 [2021-06-05 20:02:28,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:28,650 INFO L482 AbstractCegarLoop]: Abstraction has 7442 states and 19765 transitions. [2021-06-05 20:02:28,650 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:28,650 INFO L276 IsEmpty]: Start isEmpty. Operand 7442 states and 19765 transitions. [2021-06-05 20:02:28,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:28,657 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:28,657 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] [2021-06-05 20:02:28,657 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 20:02:28,657 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 20:02:28,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:28,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1992622094, now seen corresponding path program 33 times [2021-06-05 20:02:28,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:28,659 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138544375] [2021-06-05 20:02:28,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:29,027 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 20:02:29,027 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:29,028 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138544375] [2021-06-05 20:02:29,028 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138544375] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:29,028 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:29,028 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:29,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689949842] [2021-06-05 20:02:29,028 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:29,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:29,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:29,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:29,029 INFO L87 Difference]: Start difference. First operand 7442 states and 19765 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:29,831 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:02:30,006 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:30,180 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:30,379 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:30,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:30,541 INFO L93 Difference]: Finished difference Result 22975 states and 60661 transitions. [2021-06-05 20:02:30,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:30,542 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:30,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:30,565 INFO L225 Difference]: With dead ends: 22975 [2021-06-05 20:02:30,565 INFO L226 Difference]: Without dead ends: 22975 [2021-06-05 20:02:30,566 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1339.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:30,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22975 states. [2021-06-05 20:02:30,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22975 to 7458. [2021-06-05 20:02:30,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7458 states, 7456 states have (on average 2.657054721030043) internal successors, (19811), 7457 states have internal predecessors, (19811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:30,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7458 states to 7458 states and 19811 transitions. [2021-06-05 20:02:30,730 INFO L78 Accepts]: Start accepts. Automaton has 7458 states and 19811 transitions. Word has length 114 [2021-06-05 20:02:30,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:30,730 INFO L482 AbstractCegarLoop]: Abstraction has 7458 states and 19811 transitions. [2021-06-05 20:02:30,730 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:30,731 INFO L276 IsEmpty]: Start isEmpty. Operand 7458 states and 19811 transitions. [2021-06-05 20:02:30,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:30,737 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:30,737 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] [2021-06-05 20:02:30,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 20:02:30,737 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 20:02:30,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:30,738 INFO L82 PathProgramCache]: Analyzing trace with hash 904148908, now seen corresponding path program 34 times [2021-06-05 20:02:30,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:30,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472195902] [2021-06-05 20:02:30,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:31,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:31,100 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:31,100 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472195902] [2021-06-05 20:02:31,100 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472195902] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:31,100 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:31,100 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:31,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487360544] [2021-06-05 20:02:31,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:31,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:31,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:31,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:31,101 INFO L87 Difference]: Start difference. First operand 7458 states and 19811 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:31,866 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:02:32,035 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:32,219 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:02:32,411 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:02:32,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:32,564 INFO L93 Difference]: Finished difference Result 21315 states and 56061 transitions. [2021-06-05 20:02:32,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:32,564 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:32,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:32,586 INFO L225 Difference]: With dead ends: 21315 [2021-06-05 20:02:32,586 INFO L226 Difference]: Without dead ends: 21315 [2021-06-05 20:02:32,586 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1357.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:32,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21315 states. [2021-06-05 20:02:32,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21315 to 7430. [2021-06-05 20:02:32,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7430 states, 7428 states have (on average 2.653607969843834) internal successors, (19711), 7429 states have internal predecessors, (19711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:32,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 19711 transitions. [2021-06-05 20:02:32,765 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 19711 transitions. Word has length 114 [2021-06-05 20:02:32,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:32,765 INFO L482 AbstractCegarLoop]: Abstraction has 7430 states and 19711 transitions. [2021-06-05 20:02:32,765 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:32,765 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 19711 transitions. [2021-06-05 20:02:32,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:32,773 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:32,773 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] [2021-06-05 20:02:32,773 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 20:02:32,773 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 20:02:32,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:32,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1980598578, now seen corresponding path program 35 times [2021-06-05 20:02:32,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:32,774 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128802314] [2021-06-05 20:02:32,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:33,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:33,100 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:33,100 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128802314] [2021-06-05 20:02:33,100 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128802314] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:33,100 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:33,100 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:33,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795658869] [2021-06-05 20:02:33,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:33,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:33,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:33,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:33,101 INFO L87 Difference]: Start difference. First operand 7430 states and 19711 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:33,872 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:02:34,030 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:34,203 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:34,398 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:34,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:34,551 INFO L93 Difference]: Finished difference Result 20553 states and 54278 transitions. [2021-06-05 20:02:34,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:34,552 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:34,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:34,572 INFO L225 Difference]: With dead ends: 20553 [2021-06-05 20:02:34,572 INFO L226 Difference]: Without dead ends: 20553 [2021-06-05 20:02:34,573 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1325.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:34,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20553 states. [2021-06-05 20:02:34,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20553 to 7462. [2021-06-05 20:02:34,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7462 states, 7460 states have (on average 2.6545576407506704) internal successors, (19803), 7461 states have internal predecessors, (19803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:34,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7462 states to 7462 states and 19803 transitions. [2021-06-05 20:02:34,743 INFO L78 Accepts]: Start accepts. Automaton has 7462 states and 19803 transitions. Word has length 114 [2021-06-05 20:02:34,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:34,743 INFO L482 AbstractCegarLoop]: Abstraction has 7462 states and 19803 transitions. [2021-06-05 20:02:34,743 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:34,743 INFO L276 IsEmpty]: Start isEmpty. Operand 7462 states and 19803 transitions. [2021-06-05 20:02:34,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:34,750 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:34,751 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] [2021-06-05 20:02:34,751 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 20:02:34,751 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 20:02:34,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:34,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1225895532, now seen corresponding path program 36 times [2021-06-05 20:02:34,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:34,751 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184107064] [2021-06-05 20:02:34,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:35,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:35,115 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:35,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184107064] [2021-06-05 20:02:35,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184107064] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:35,115 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:35,115 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:35,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606085881] [2021-06-05 20:02:35,116 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:35,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:35,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:35,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:35,116 INFO L87 Difference]: Start difference. First operand 7462 states and 19803 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:35,896 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:02:36,055 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:36,246 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:02:36,444 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:02:36,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:36,614 INFO L93 Difference]: Finished difference Result 21366 states and 56082 transitions. [2021-06-05 20:02:36,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:36,615 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:36,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:36,636 INFO L225 Difference]: With dead ends: 21366 [2021-06-05 20:02:36,636 INFO L226 Difference]: Without dead ends: 21366 [2021-06-05 20:02:36,637 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1380.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:36,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21366 states. [2021-06-05 20:02:36,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21366 to 7446. [2021-06-05 20:02:36,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7446 states, 7444 states have (on average 2.6540838259000537) internal successors, (19757), 7445 states have internal predecessors, (19757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:36,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7446 states to 7446 states and 19757 transitions. [2021-06-05 20:02:36,807 INFO L78 Accepts]: Start accepts. Automaton has 7446 states and 19757 transitions. Word has length 114 [2021-06-05 20:02:36,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:36,808 INFO L482 AbstractCegarLoop]: Abstraction has 7446 states and 19757 transitions. [2021-06-05 20:02:36,808 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:36,808 INFO L276 IsEmpty]: Start isEmpty. Operand 7446 states and 19757 transitions. [2021-06-05 20:02:36,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:36,816 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:36,816 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] [2021-06-05 20:02:36,816 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 20:02:36,816 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 20:02:36,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:36,817 INFO L82 PathProgramCache]: Analyzing trace with hash 2023758992, now seen corresponding path program 37 times [2021-06-05 20:02:36,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:36,817 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599739193] [2021-06-05 20:02:36,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:37,230 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 20:02:37,230 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:37,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599739193] [2021-06-05 20:02:37,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599739193] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:37,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:37,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:37,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608187062] [2021-06-05 20:02:37,231 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:37,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:37,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:37,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:37,232 INFO L87 Difference]: Start difference. First operand 7446 states and 19757 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:38,048 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:02:38,207 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:38,391 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:02:38,584 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:02:38,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:38,731 INFO L93 Difference]: Finished difference Result 20692 states and 54495 transitions. [2021-06-05 20:02:38,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:38,732 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:38,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:38,753 INFO L225 Difference]: With dead ends: 20692 [2021-06-05 20:02:38,753 INFO L226 Difference]: Without dead ends: 20692 [2021-06-05 20:02:38,754 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1449.9ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:38,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20692 states. [2021-06-05 20:02:38,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20692 to 7462. [2021-06-05 20:02:38,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7462 states, 7460 states have (on average 2.6545576407506704) internal successors, (19803), 7461 states have internal predecessors, (19803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:38,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7462 states to 7462 states and 19803 transitions. [2021-06-05 20:02:38,925 INFO L78 Accepts]: Start accepts. Automaton has 7462 states and 19803 transitions. Word has length 114 [2021-06-05 20:02:38,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:38,925 INFO L482 AbstractCegarLoop]: Abstraction has 7462 states and 19803 transitions. [2021-06-05 20:02:38,925 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:38,926 INFO L276 IsEmpty]: Start isEmpty. Operand 7462 states and 19803 transitions. [2021-06-05 20:02:38,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:38,933 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:38,933 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] [2021-06-05 20:02:38,933 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 20:02:38,933 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 20:02:38,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:38,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1775212012, now seen corresponding path program 38 times [2021-06-05 20:02:38,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:38,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856488765] [2021-06-05 20:02:38,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:39,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:39,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:39,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856488765] [2021-06-05 20:02:39,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856488765] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:39,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:39,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:39,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621570655] [2021-06-05 20:02:39,253 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:39,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:39,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:39,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:39,254 INFO L87 Difference]: Start difference. First operand 7462 states and 19803 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:40,038 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:02:40,200 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:40,376 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:40,573 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:40,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:40,726 INFO L93 Difference]: Finished difference Result 18039 states and 47735 transitions. [2021-06-05 20:02:40,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:40,727 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:40,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:40,745 INFO L225 Difference]: With dead ends: 18039 [2021-06-05 20:02:40,746 INFO L226 Difference]: Without dead ends: 18039 [2021-06-05 20:02:40,746 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1324.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:40,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18039 states. [2021-06-05 20:02:40,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18039 to 7418. [2021-06-05 20:02:40,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7418 states, 7416 states have (on average 2.6522384034519955) internal successors, (19669), 7417 states have internal predecessors, (19669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:40,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7418 states to 7418 states and 19669 transitions. [2021-06-05 20:02:40,932 INFO L78 Accepts]: Start accepts. Automaton has 7418 states and 19669 transitions. Word has length 114 [2021-06-05 20:02:40,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:40,932 INFO L482 AbstractCegarLoop]: Abstraction has 7418 states and 19669 transitions. [2021-06-05 20:02:40,932 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:40,932 INFO L276 IsEmpty]: Start isEmpty. Operand 7418 states and 19669 transitions. [2021-06-05 20:02:40,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:40,940 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:40,940 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] [2021-06-05 20:02:40,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-05 20:02:40,940 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 20:02:40,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:40,941 INFO L82 PathProgramCache]: Analyzing trace with hash -15292880, now seen corresponding path program 39 times [2021-06-05 20:02:40,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:40,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107517589] [2021-06-05 20:02:40,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:41,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:41,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:41,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107517589] [2021-06-05 20:02:41,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107517589] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:41,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:41,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:41,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80240051] [2021-06-05 20:02:41,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:41,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:41,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:41,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:41,307 INFO L87 Difference]: Start difference. First operand 7418 states and 19669 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:42,072 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:02:42,221 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:02:42,438 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:42,635 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:42,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:42,790 INFO L93 Difference]: Finished difference Result 19175 states and 51027 transitions. [2021-06-05 20:02:42,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:42,790 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:42,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:42,809 INFO L225 Difference]: With dead ends: 19175 [2021-06-05 20:02:42,810 INFO L226 Difference]: Without dead ends: 19175 [2021-06-05 20:02:42,810 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1335.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:42,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19175 states. [2021-06-05 20:02:42,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19175 to 7466. [2021-06-05 20:02:42,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7466 states, 7464 states have (on average 2.6536709539121115) internal successors, (19807), 7465 states have internal predecessors, (19807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:42,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7466 states to 7466 states and 19807 transitions. [2021-06-05 20:02:42,961 INFO L78 Accepts]: Start accepts. Automaton has 7466 states and 19807 transitions. Word has length 114 [2021-06-05 20:02:42,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:42,962 INFO L482 AbstractCegarLoop]: Abstraction has 7466 states and 19807 transitions. [2021-06-05 20:02:42,962 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:42,962 INFO L276 IsEmpty]: Start isEmpty. Operand 7466 states and 19807 transitions. [2021-06-05 20:02:42,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:42,968 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:42,968 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] [2021-06-05 20:02:42,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-05 20:02:42,969 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 20:02:42,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:42,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1897943856, now seen corresponding path program 40 times [2021-06-05 20:02:42,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:42,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78917769] [2021-06-05 20:02:42,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:43,333 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 20:02:43,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:43,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78917769] [2021-06-05 20:02:43,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78917769] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:43,334 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:43,334 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:43,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224985947] [2021-06-05 20:02:43,334 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:43,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:43,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:43,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:43,334 INFO L87 Difference]: Start difference. First operand 7466 states and 19807 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:44,094 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:02:44,267 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:44,440 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:44,636 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:44,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:44,793 INFO L93 Difference]: Finished difference Result 19247 states and 51159 transitions. [2021-06-05 20:02:44,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:44,793 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:44,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:44,821 INFO L225 Difference]: With dead ends: 19247 [2021-06-05 20:02:44,821 INFO L226 Difference]: Without dead ends: 19247 [2021-06-05 20:02:44,822 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1346.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:44,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19247 states. [2021-06-05 20:02:44,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19247 to 7482. [2021-06-05 20:02:44,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7482 states, 7480 states have (on average 2.654144385026738) internal successors, (19853), 7481 states have internal predecessors, (19853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:44,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7482 states to 7482 states and 19853 transitions. [2021-06-05 20:02:44,996 INFO L78 Accepts]: Start accepts. Automaton has 7482 states and 19853 transitions. Word has length 114 [2021-06-05 20:02:44,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:44,996 INFO L482 AbstractCegarLoop]: Abstraction has 7482 states and 19853 transitions. [2021-06-05 20:02:44,996 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:44,996 INFO L276 IsEmpty]: Start isEmpty. Operand 7482 states and 19853 transitions. [2021-06-05 20:02:45,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:45,003 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:45,003 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] [2021-06-05 20:02:45,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-05 20:02:45,003 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 20:02:45,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:45,004 INFO L82 PathProgramCache]: Analyzing trace with hash 809470670, now seen corresponding path program 41 times [2021-06-05 20:02:45,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:45,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532011034] [2021-06-05 20:02:45,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:45,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:45,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:45,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532011034] [2021-06-05 20:02:45,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532011034] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:45,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:45,358 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:45,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809344801] [2021-06-05 20:02:45,358 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:45,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:45,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:45,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:45,358 INFO L87 Difference]: Start difference. First operand 7482 states and 19853 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:46,139 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:02:46,319 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:46,511 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:02:46,708 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:02:46,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:46,898 INFO L93 Difference]: Finished difference Result 18657 states and 49237 transitions. [2021-06-05 20:02:46,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:46,899 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:46,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:46,918 INFO L225 Difference]: With dead ends: 18657 [2021-06-05 20:02:46,918 INFO L226 Difference]: Without dead ends: 18657 [2021-06-05 20:02:46,918 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1362.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:46,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18657 states. [2021-06-05 20:02:47,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18657 to 7434. [2021-06-05 20:02:47,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7434 states, 7432 states have (on average 2.6527179763186224) internal successors, (19715), 7433 states have internal predecessors, (19715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:47,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7434 states to 7434 states and 19715 transitions. [2021-06-05 20:02:47,077 INFO L78 Accepts]: Start accepts. Automaton has 7434 states and 19715 transitions. Word has length 114 [2021-06-05 20:02:47,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:47,078 INFO L482 AbstractCegarLoop]: Abstraction has 7434 states and 19715 transitions. [2021-06-05 20:02:47,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:47,078 INFO L276 IsEmpty]: Start isEmpty. Operand 7434 states and 19715 transitions. [2021-06-05 20:02:47,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:47,084 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:47,085 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] [2021-06-05 20:02:47,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-05 20:02:47,085 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 20:02:47,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:47,085 INFO L82 PathProgramCache]: Analyzing trace with hash -394110194, now seen corresponding path program 42 times [2021-06-05 20:02:47,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:47,085 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950216789] [2021-06-05 20:02:47,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:47,444 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 20:02:47,444 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:47,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950216789] [2021-06-05 20:02:47,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950216789] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:47,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:47,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:47,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992977536] [2021-06-05 20:02:47,444 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:47,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:47,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:47,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:47,445 INFO L87 Difference]: Start difference. First operand 7434 states and 19715 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:48,225 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:02:48,373 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:02:48,568 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:48,769 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:48,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:48,919 INFO L93 Difference]: Finished difference Result 15545 states and 41228 transitions. [2021-06-05 20:02:48,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:48,919 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:48,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:48,935 INFO L225 Difference]: With dead ends: 15545 [2021-06-05 20:02:48,935 INFO L226 Difference]: Without dead ends: 15545 [2021-06-05 20:02:48,936 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1332.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:48,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15545 states. [2021-06-05 20:02:49,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15545 to 7406. [2021-06-05 20:02:49,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7406 states, 7404 states have (on average 2.6516747703943815) internal successors, (19633), 7405 states have internal predecessors, (19633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:49,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7406 states to 7406 states and 19633 transitions. [2021-06-05 20:02:49,076 INFO L78 Accepts]: Start accepts. Automaton has 7406 states and 19633 transitions. Word has length 114 [2021-06-05 20:02:49,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:49,076 INFO L482 AbstractCegarLoop]: Abstraction has 7406 states and 19633 transitions. [2021-06-05 20:02:49,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:49,076 INFO L276 IsEmpty]: Start isEmpty. Operand 7406 states and 19633 transitions. [2021-06-05 20:02:49,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:49,084 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:49,084 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] [2021-06-05 20:02:49,084 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-05 20:02:49,084 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 20:02:49,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:49,086 INFO L82 PathProgramCache]: Analyzing trace with hash 917405998, now seen corresponding path program 43 times [2021-06-05 20:02:49,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:49,086 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868317838] [2021-06-05 20:02:49,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:49,432 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 20:02:49,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:49,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868317838] [2021-06-05 20:02:49,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868317838] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:49,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:49,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:49,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747671894] [2021-06-05 20:02:49,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:49,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:49,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:49,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:49,434 INFO L87 Difference]: Start difference. First operand 7406 states and 19633 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:50,198 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:02:50,347 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:02:50,531 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:50,728 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:50,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:50,876 INFO L93 Difference]: Finished difference Result 14590 states and 38623 transitions. [2021-06-05 20:02:50,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:50,877 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:50,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:50,893 INFO L225 Difference]: With dead ends: 14590 [2021-06-05 20:02:50,893 INFO L226 Difference]: Without dead ends: 14590 [2021-06-05 20:02:50,893 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1328.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:50,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14590 states. [2021-06-05 20:02:51,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14590 to 7526. [2021-06-05 20:02:51,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7524 states have (on average 2.6556353003721425) internal successors, (19981), 7525 states have internal predecessors, (19981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:51,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19981 transitions. [2021-06-05 20:02:51,042 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19981 transitions. Word has length 114 [2021-06-05 20:02:51,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:51,042 INFO L482 AbstractCegarLoop]: Abstraction has 7526 states and 19981 transitions. [2021-06-05 20:02:51,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:51,042 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19981 transitions. [2021-06-05 20:02:51,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:51,052 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:51,052 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] [2021-06-05 20:02:51,052 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-05 20:02:51,052 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 20:02:51,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:51,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1464324562, now seen corresponding path program 44 times [2021-06-05 20:02:51,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:51,053 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028782170] [2021-06-05 20:02:51,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:51,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:51,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:51,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028782170] [2021-06-05 20:02:51,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028782170] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:51,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:51,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:51,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527921164] [2021-06-05 20:02:51,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:51,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:51,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:51,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:51,395 INFO L87 Difference]: Start difference. First operand 7526 states and 19981 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:52,156 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:02:52,324 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:52,493 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:52,713 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:52,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:52,852 INFO L93 Difference]: Finished difference Result 17118 states and 45172 transitions. [2021-06-05 20:02:52,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:52,853 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:52,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:52,872 INFO L225 Difference]: With dead ends: 17118 [2021-06-05 20:02:52,872 INFO L226 Difference]: Without dead ends: 17118 [2021-06-05 20:02:52,872 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1328.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:52,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17118 states. [2021-06-05 20:02:53,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17118 to 7542. [2021-06-05 20:02:53,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7542 states, 7540 states have (on average 2.656100795755968) internal successors, (20027), 7541 states have internal predecessors, (20027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:53,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7542 states to 7542 states and 20027 transitions. [2021-06-05 20:02:53,027 INFO L78 Accepts]: Start accepts. Automaton has 7542 states and 20027 transitions. Word has length 114 [2021-06-05 20:02:53,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:53,028 INFO L482 AbstractCegarLoop]: Abstraction has 7542 states and 20027 transitions. [2021-06-05 20:02:53,028 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:53,028 INFO L276 IsEmpty]: Start isEmpty. Operand 7542 states and 20027 transitions. [2021-06-05 20:02:53,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:53,035 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:53,036 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] [2021-06-05 20:02:53,036 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-05 20:02:53,036 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 20:02:53,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:53,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1742169548, now seen corresponding path program 45 times [2021-06-05 20:02:53,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:53,036 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699767742] [2021-06-05 20:02:53,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:53,384 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 20:02:53,384 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:53,384 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699767742] [2021-06-05 20:02:53,384 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699767742] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:53,384 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:53,384 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:53,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919968550] [2021-06-05 20:02:53,384 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:53,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:53,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:53,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:53,385 INFO L87 Difference]: Start difference. First operand 7542 states and 20027 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:54,157 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:02:54,329 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:54,517 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:02:54,712 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:02:54,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:54,866 INFO L93 Difference]: Finished difference Result 15458 states and 40572 transitions. [2021-06-05 20:02:54,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:54,866 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:54,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:54,884 INFO L225 Difference]: With dead ends: 15458 [2021-06-05 20:02:54,884 INFO L226 Difference]: Without dead ends: 15458 [2021-06-05 20:02:54,884 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1343.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:54,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15458 states. [2021-06-05 20:02:55,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15458 to 7494. [2021-06-05 20:02:55,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7494 states, 7492 states have (on average 2.654698344901228) internal successors, (19889), 7493 states have internal predecessors, (19889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:55,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7494 states to 7494 states and 19889 transitions. [2021-06-05 20:02:55,032 INFO L78 Accepts]: Start accepts. Automaton has 7494 states and 19889 transitions. Word has length 114 [2021-06-05 20:02:55,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:55,033 INFO L482 AbstractCegarLoop]: Abstraction has 7494 states and 19889 transitions. [2021-06-05 20:02:55,033 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:55,033 INFO L276 IsEmpty]: Start isEmpty. Operand 7494 states and 19889 transitions. [2021-06-05 20:02:55,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:55,039 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:55,040 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] [2021-06-05 20:02:55,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-05 20:02:55,040 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 20:02:55,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:55,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1142577938, now seen corresponding path program 46 times [2021-06-05 20:02:55,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:55,040 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131749053] [2021-06-05 20:02:55,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:55,365 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 20:02:55,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:55,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131749053] [2021-06-05 20:02:55,366 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131749053] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:55,366 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:55,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:55,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562183324] [2021-06-05 20:02:55,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:55,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:55,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:55,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:55,366 INFO L87 Difference]: Start difference. First operand 7494 states and 19889 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:56,131 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:02:56,291 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:56,462 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:02:56,656 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:02:56,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:56,807 INFO L93 Difference]: Finished difference Result 18448 states and 48351 transitions. [2021-06-05 20:02:56,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:56,808 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:56,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:56,828 INFO L225 Difference]: With dead ends: 18448 [2021-06-05 20:02:56,828 INFO L226 Difference]: Without dead ends: 18448 [2021-06-05 20:02:56,828 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1314.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:56,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18448 states. [2021-06-05 20:02:56,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18448 to 7526. [2021-06-05 20:02:56,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7524 states have (on average 2.6556353003721425) internal successors, (19981), 7525 states have internal predecessors, (19981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:56,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19981 transitions. [2021-06-05 20:02:56,990 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19981 transitions. Word has length 114 [2021-06-05 20:02:56,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:56,990 INFO L482 AbstractCegarLoop]: Abstraction has 7526 states and 19981 transitions. [2021-06-05 20:02:56,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:56,990 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19981 transitions. [2021-06-05 20:02:56,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:56,998 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:56,998 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] [2021-06-05 20:02:56,998 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-05 20:02:56,998 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 20:02:56,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:56,998 INFO L82 PathProgramCache]: Analyzing trace with hash 2063916172, now seen corresponding path program 47 times [2021-06-05 20:02:56,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:56,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407934164] [2021-06-05 20:02:56,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:57,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:02:57,322 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:57,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407934164] [2021-06-05 20:02:57,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407934164] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:57,322 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:57,322 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:57,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266932341] [2021-06-05 20:02:57,323 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:57,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:57,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:57,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:57,323 INFO L87 Difference]: Start difference. First operand 7526 states and 19981 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:58,084 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:02:58,263 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:02:58,447 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:02:58,637 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:02:58,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:02:58,784 INFO L93 Difference]: Finished difference Result 19261 states and 50155 transitions. [2021-06-05 20:02:58,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:02:58,785 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:02:58,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:02:58,804 INFO L225 Difference]: With dead ends: 19261 [2021-06-05 20:02:58,804 INFO L226 Difference]: Without dead ends: 19261 [2021-06-05 20:02:58,804 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1350.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:02:58,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19261 states. [2021-06-05 20:02:58,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19261 to 7510. [2021-06-05 20:02:58,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7510 states, 7508 states have (on average 2.655167820990943) internal successors, (19935), 7509 states have internal predecessors, (19935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:58,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 19935 transitions. [2021-06-05 20:02:58,962 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 19935 transitions. Word has length 114 [2021-06-05 20:02:58,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:02:58,962 INFO L482 AbstractCegarLoop]: Abstraction has 7510 states and 19935 transitions. [2021-06-05 20:02:58,962 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:02:58,963 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 19935 transitions. [2021-06-05 20:02:58,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:02:58,969 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:02:58,969 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] [2021-06-05 20:02:58,970 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-05 20:02:58,970 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 20:02:58,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:02:58,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1433187664, now seen corresponding path program 48 times [2021-06-05 20:02:58,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:02:58,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911563376] [2021-06-05 20:02:58,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:02:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:02:59,289 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 20:02:59,290 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:02:59,290 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911563376] [2021-06-05 20:02:59,290 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911563376] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:02:59,290 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:02:59,290 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:02:59,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970657928] [2021-06-05 20:02:59,290 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:02:59,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:02:59,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:02:59,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:02:59,291 INFO L87 Difference]: Start difference. First operand 7510 states and 19935 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:00,069 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:03:00,229 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:00,414 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:03:00,610 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:03:00,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:00,774 INFO L93 Difference]: Finished difference Result 18587 states and 48568 transitions. [2021-06-05 20:03:00,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:00,775 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:00,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:00,794 INFO L225 Difference]: With dead ends: 18587 [2021-06-05 20:03:00,794 INFO L226 Difference]: Without dead ends: 18587 [2021-06-05 20:03:00,794 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1329.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:00,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18587 states. [2021-06-05 20:03:00,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18587 to 7526. [2021-06-05 20:03:00,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7524 states have (on average 2.6556353003721425) internal successors, (19981), 7525 states have internal predecessors, (19981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:00,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19981 transitions. [2021-06-05 20:03:00,950 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19981 transitions. Word has length 114 [2021-06-05 20:03:00,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:00,950 INFO L482 AbstractCegarLoop]: Abstraction has 7526 states and 19981 transitions. [2021-06-05 20:03:00,950 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:00,950 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19981 transitions. [2021-06-05 20:03:00,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:00,957 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:00,957 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] [2021-06-05 20:03:00,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-05 20:03:00,957 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 20:03:00,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:00,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1681734644, now seen corresponding path program 49 times [2021-06-05 20:03:00,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:00,958 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535819168] [2021-06-05 20:03:00,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:01,374 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 20:03:01,374 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:01,374 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535819168] [2021-06-05 20:03:01,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535819168] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:01,375 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:01,375 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:01,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758908204] [2021-06-05 20:03:01,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:01,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:01,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:01,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:01,376 INFO L87 Difference]: Start difference. First operand 7526 states and 19981 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:02,167 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:03:02,325 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:02,496 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:02,691 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:02,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:02,816 INFO L93 Difference]: Finished difference Result 15652 states and 41094 transitions. [2021-06-05 20:03:02,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:02,817 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:02,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:02,833 INFO L225 Difference]: With dead ends: 15652 [2021-06-05 20:03:02,833 INFO L226 Difference]: Without dead ends: 15652 [2021-06-05 20:03:02,833 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1412.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:02,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15652 states. [2021-06-05 20:03:02,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15652 to 7462. [2021-06-05 20:03:02,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7462 states, 7460 states have (on average 2.653753351206434) internal successors, (19797), 7461 states have internal predecessors, (19797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:02,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7462 states to 7462 states and 19797 transitions. [2021-06-05 20:03:02,974 INFO L78 Accepts]: Start accepts. Automaton has 7462 states and 19797 transitions. Word has length 114 [2021-06-05 20:03:02,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:02,974 INFO L482 AbstractCegarLoop]: Abstraction has 7462 states and 19797 transitions. [2021-06-05 20:03:02,974 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:02,974 INFO L276 IsEmpty]: Start isEmpty. Operand 7462 states and 19797 transitions. [2021-06-05 20:03:02,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:02,981 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:02,981 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] [2021-06-05 20:03:02,982 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-05 20:03:02,982 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 20:03:02,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:02,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1277780112, now seen corresponding path program 50 times [2021-06-05 20:03:02,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:02,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622195674] [2021-06-05 20:03:02,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:03,333 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 20:03:03,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:03,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622195674] [2021-06-05 20:03:03,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622195674] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:03,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:03,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:03,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971185784] [2021-06-05 20:03:03,333 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:03,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:03,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:03,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:03,334 INFO L87 Difference]: Start difference. First operand 7462 states and 19797 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:04,190 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:03:04,346 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:04,519 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:04,713 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:04,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:04,851 INFO L93 Difference]: Finished difference Result 14168 states and 37433 transitions. [2021-06-05 20:03:04,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:04,851 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:04,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:04,865 INFO L225 Difference]: With dead ends: 14168 [2021-06-05 20:03:04,865 INFO L226 Difference]: Without dead ends: 14168 [2021-06-05 20:03:04,865 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1344.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:04,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14168 states. [2021-06-05 20:03:04,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14168 to 7522. [2021-06-05 20:03:04,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7522 states, 7520 states have (on average 2.655718085106383) internal successors, (19971), 7521 states have internal predecessors, (19971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:04,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7522 states to 7522 states and 19971 transitions. [2021-06-05 20:03:04,992 INFO L78 Accepts]: Start accepts. Automaton has 7522 states and 19971 transitions. Word has length 114 [2021-06-05 20:03:04,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:04,992 INFO L482 AbstractCegarLoop]: Abstraction has 7522 states and 19971 transitions. [2021-06-05 20:03:04,993 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:04,993 INFO L276 IsEmpty]: Start isEmpty. Operand 7522 states and 19971 transitions. [2021-06-05 20:03:04,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:04,999 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:04,999 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] [2021-06-05 20:03:04,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-05 20:03:04,999 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 20:03:05,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:05,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1928713998, now seen corresponding path program 51 times [2021-06-05 20:03:05,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:05,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135467448] [2021-06-05 20:03:05,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:05,331 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 20:03:05,331 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:05,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135467448] [2021-06-05 20:03:05,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135467448] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:05,331 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:05,331 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:05,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018793748] [2021-06-05 20:03:05,331 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:05,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:05,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:05,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:05,332 INFO L87 Difference]: Start difference. First operand 7522 states and 19971 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:06,088 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:03:06,240 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:06,424 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:03:06,610 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:03:06,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:06,744 INFO L93 Difference]: Finished difference Result 14981 states and 39237 transitions. [2021-06-05 20:03:06,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:06,744 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:06,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:06,760 INFO L225 Difference]: With dead ends: 14981 [2021-06-05 20:03:06,760 INFO L226 Difference]: Without dead ends: 14981 [2021-06-05 20:03:06,761 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1321.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:06,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14981 states. [2021-06-05 20:03:06,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14981 to 7506. [2021-06-05 20:03:06,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7506 states, 7504 states have (on average 2.6552505330490406) internal successors, (19925), 7505 states have internal predecessors, (19925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:06,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7506 states to 7506 states and 19925 transitions. [2021-06-05 20:03:06,901 INFO L78 Accepts]: Start accepts. Automaton has 7506 states and 19925 transitions. Word has length 114 [2021-06-05 20:03:06,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:06,901 INFO L482 AbstractCegarLoop]: Abstraction has 7506 states and 19925 transitions. [2021-06-05 20:03:06,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:06,901 INFO L276 IsEmpty]: Start isEmpty. Operand 7506 states and 19925 transitions. [2021-06-05 20:03:06,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:06,908 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:06,908 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] [2021-06-05 20:03:06,908 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-05 20:03:06,909 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 20:03:06,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:06,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1568389838, now seen corresponding path program 52 times [2021-06-05 20:03:06,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:06,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180596513] [2021-06-05 20:03:06,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:07,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:07,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:07,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180596513] [2021-06-05 20:03:07,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180596513] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:07,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:07,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:07,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393985644] [2021-06-05 20:03:07,244 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:07,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:07,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:07,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:07,245 INFO L87 Difference]: Start difference. First operand 7506 states and 19925 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:08,031 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:03:08,190 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:08,375 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:03:08,567 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:03:08,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:08,728 INFO L93 Difference]: Finished difference Result 18094 states and 47187 transitions. [2021-06-05 20:03:08,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:08,728 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:08,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:08,747 INFO L225 Difference]: With dead ends: 18094 [2021-06-05 20:03:08,747 INFO L226 Difference]: Without dead ends: 18094 [2021-06-05 20:03:08,747 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1330.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:08,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18094 states. [2021-06-05 20:03:08,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18094 to 7522. [2021-06-05 20:03:08,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7522 states, 7520 states have (on average 2.655718085106383) internal successors, (19971), 7521 states have internal predecessors, (19971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:08,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7522 states to 7522 states and 19971 transitions. [2021-06-05 20:03:08,906 INFO L78 Accepts]: Start accepts. Automaton has 7522 states and 19971 transitions. Word has length 114 [2021-06-05 20:03:08,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:08,907 INFO L482 AbstractCegarLoop]: Abstraction has 7522 states and 19971 transitions. [2021-06-05 20:03:08,907 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:08,907 INFO L276 IsEmpty]: Start isEmpty. Operand 7522 states and 19971 transitions. [2021-06-05 20:03:08,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:08,914 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:08,914 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] [2021-06-05 20:03:08,914 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-06-05 20:03:08,914 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 20:03:08,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:08,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1816936818, now seen corresponding path program 53 times [2021-06-05 20:03:08,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:08,915 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086605767] [2021-06-05 20:03:08,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:09,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:09,261 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:09,261 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086605767] [2021-06-05 20:03:09,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086605767] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:09,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:09,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:09,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909182402] [2021-06-05 20:03:09,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:09,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:09,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:09,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:09,261 INFO L87 Difference]: Start difference. First operand 7522 states and 19971 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:09,812 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-06-05 20:03:09,998 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 20:03:10,177 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:03:10,372 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:10,581 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:10,774 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:10,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:10,906 INFO L93 Difference]: Finished difference Result 15159 states and 39713 transitions. [2021-06-05 20:03:10,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:10,907 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:10,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:10,922 INFO L225 Difference]: With dead ends: 15159 [2021-06-05 20:03:10,922 INFO L226 Difference]: Without dead ends: 15159 [2021-06-05 20:03:10,922 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1511.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:10,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15159 states. [2021-06-05 20:03:11,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15159 to 7490. [2021-06-05 20:03:11,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7490 states, 7488 states have (on average 2.654780982905983) internal successors, (19879), 7489 states have internal predecessors, (19879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:11,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7490 states to 7490 states and 19879 transitions. [2021-06-05 20:03:11,059 INFO L78 Accepts]: Start accepts. Automaton has 7490 states and 19879 transitions. Word has length 114 [2021-06-05 20:03:11,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:11,059 INFO L482 AbstractCegarLoop]: Abstraction has 7490 states and 19879 transitions. [2021-06-05 20:03:11,059 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:11,059 INFO L276 IsEmpty]: Start isEmpty. Operand 7490 states and 19879 transitions. [2021-06-05 20:03:11,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:11,066 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:11,066 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] [2021-06-05 20:03:11,067 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-06-05 20:03:11,067 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 20:03:11,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:11,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1457760172, now seen corresponding path program 54 times [2021-06-05 20:03:11,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:11,067 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726840294] [2021-06-05 20:03:11,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:11,449 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 20:03:11,449 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:11,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726840294] [2021-06-05 20:03:11,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726840294] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:11,449 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:11,449 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:11,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783450663] [2021-06-05 20:03:11,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:11,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:11,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:11,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:11,450 INFO L87 Difference]: Start difference. First operand 7490 states and 19879 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:12,212 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:03:12,384 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:12,571 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:03:12,765 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:03:12,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:12,906 INFO L93 Difference]: Finished difference Result 14291 states and 37604 transitions. [2021-06-05 20:03:12,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:12,906 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:12,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:12,920 INFO L225 Difference]: With dead ends: 14291 [2021-06-05 20:03:12,920 INFO L226 Difference]: Without dead ends: 14291 [2021-06-05 20:03:12,920 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1367.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:12,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14291 states. [2021-06-05 20:03:13,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14291 to 7534. [2021-06-05 20:03:13,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7532 states have (on average 2.656266595857674) internal successors, (20007), 7533 states have internal predecessors, (20007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:13,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 20007 transitions. [2021-06-05 20:03:13,052 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 20007 transitions. Word has length 114 [2021-06-05 20:03:13,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:13,052 INFO L482 AbstractCegarLoop]: Abstraction has 7534 states and 20007 transitions. [2021-06-05 20:03:13,053 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:13,053 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 20007 transitions. [2021-06-05 20:03:13,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:13,059 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:13,059 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] [2021-06-05 20:03:13,060 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-05 20:03:13,060 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 20:03:13,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:13,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1209213192, now seen corresponding path program 55 times [2021-06-05 20:03:13,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:13,060 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976110375] [2021-06-05 20:03:13,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:13,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:13,425 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:13,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976110375] [2021-06-05 20:03:13,426 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976110375] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:13,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:13,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:13,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047065759] [2021-06-05 20:03:13,426 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:13,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:13,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:13,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:13,426 INFO L87 Difference]: Start difference. First operand 7534 states and 20007 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:14,194 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:03:14,363 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:14,539 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:14,738 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:14,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:14,870 INFO L93 Difference]: Finished difference Result 14131 states and 37202 transitions. [2021-06-05 20:03:14,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:14,871 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:14,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:14,885 INFO L225 Difference]: With dead ends: 14131 [2021-06-05 20:03:14,885 INFO L226 Difference]: Without dead ends: 14131 [2021-06-05 20:03:14,886 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1355.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:14,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14131 states. [2021-06-05 20:03:15,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14131 to 7518. [2021-06-05 20:03:15,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 7516 states have (on average 2.6558009579563597) internal successors, (19961), 7517 states have internal predecessors, (19961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:15,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 19961 transitions. [2021-06-05 20:03:15,026 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 19961 transitions. Word has length 114 [2021-06-05 20:03:15,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:15,027 INFO L482 AbstractCegarLoop]: Abstraction has 7518 states and 19961 transitions. [2021-06-05 20:03:15,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:15,027 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 19961 transitions. [2021-06-05 20:03:15,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:15,034 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:15,034 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] [2021-06-05 20:03:15,034 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-06-05 20:03:15,034 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 20:03:15,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:15,035 INFO L82 PathProgramCache]: Analyzing trace with hash 52395888, now seen corresponding path program 56 times [2021-06-05 20:03:15,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:15,035 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475969483] [2021-06-05 20:03:15,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:15,380 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 20:03:15,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:15,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475969483] [2021-06-05 20:03:15,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475969483] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:15,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:15,384 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:15,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279896386] [2021-06-05 20:03:15,385 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:15,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:15,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:15,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:15,386 INFO L87 Difference]: Start difference. First operand 7518 states and 19961 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:15,794 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-06-05 20:03:16,214 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:03:16,416 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:03:16,622 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:16,827 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:16,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:16,956 INFO L93 Difference]: Finished difference Result 11564 states and 30656 transitions. [2021-06-05 20:03:16,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:16,956 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:16,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:16,968 INFO L225 Difference]: With dead ends: 11564 [2021-06-05 20:03:16,968 INFO L226 Difference]: Without dead ends: 11564 [2021-06-05 20:03:16,968 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1467.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:16,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11564 states. [2021-06-05 20:03:17,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11564 to 7686. [2021-06-05 20:03:17,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7684 states have (on average 2.661764705882353) internal successors, (20453), 7685 states have internal predecessors, (20453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:17,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20453 transitions. [2021-06-05 20:03:17,091 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20453 transitions. Word has length 114 [2021-06-05 20:03:17,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:17,092 INFO L482 AbstractCegarLoop]: Abstraction has 7686 states and 20453 transitions. [2021-06-05 20:03:17,092 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:17,092 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20453 transitions. [2021-06-05 20:03:17,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:17,099 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:17,099 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] [2021-06-05 20:03:17,100 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-06-05 20:03:17,100 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 20:03:17,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:17,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1938511328, now seen corresponding path program 3 times [2021-06-05 20:03:17,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:17,100 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969426134] [2021-06-05 20:03:17,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:17,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:17,846 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:17,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969426134] [2021-06-05 20:03:17,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969426134] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:17,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:17,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-05 20:03:17,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163345124] [2021-06-05 20:03:17,847 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-05 20:03:17,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:17,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-05 20:03:17,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2021-06-05 20:03:17,847 INFO L87 Difference]: Start difference. First operand 7686 states and 20453 transitions. Second operand has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:22,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:22,619 INFO L93 Difference]: Finished difference Result 12837 states and 34308 transitions. [2021-06-05 20:03:22,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-06-05 20:03:22,619 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:22,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:22,633 INFO L225 Difference]: With dead ends: 12837 [2021-06-05 20:03:22,633 INFO L226 Difference]: Without dead ends: 12837 [2021-06-05 20:03:22,634 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1739 ImplicationChecksByTransitivity, 3622.2ms TimeCoverageRelationStatistics Valid=1658, Invalid=5824, Unknown=0, NotChecked=0, Total=7482 [2021-06-05 20:03:22,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12837 states. [2021-06-05 20:03:22,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12837 to 10747. [2021-06-05 20:03:22,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10747 states, 10745 states have (on average 2.7100977198697067) internal successors, (29120), 10746 states have internal predecessors, (29120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:22,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10747 states to 10747 states and 29120 transitions. [2021-06-05 20:03:22,781 INFO L78 Accepts]: Start accepts. Automaton has 10747 states and 29120 transitions. Word has length 114 [2021-06-05 20:03:22,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:22,781 INFO L482 AbstractCegarLoop]: Abstraction has 10747 states and 29120 transitions. [2021-06-05 20:03:22,781 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:22,781 INFO L276 IsEmpty]: Start isEmpty. Operand 10747 states and 29120 transitions. [2021-06-05 20:03:22,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:22,791 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:22,791 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] [2021-06-05 20:03:22,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-06-05 20:03:22,791 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 20:03:22,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:22,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1548580200, now seen corresponding path program 57 times [2021-06-05 20:03:22,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:22,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268359983] [2021-06-05 20:03:22,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:23,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:23,245 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:23,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268359983] [2021-06-05 20:03:23,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268359983] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:23,246 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:23,246 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 20:03:23,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780357798] [2021-06-05 20:03:23,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 20:03:23,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:23,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 20:03:23,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:03:23,247 INFO L87 Difference]: Start difference. First operand 10747 states and 29120 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:24,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:24,384 INFO L93 Difference]: Finished difference Result 12515 states and 32935 transitions. [2021-06-05 20:03:24,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:03:24,385 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:24,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:24,398 INFO L225 Difference]: With dead ends: 12515 [2021-06-05 20:03:24,398 INFO L226 Difference]: Without dead ends: 12515 [2021-06-05 20:03:24,399 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1115.6ms TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 20:03:24,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12515 states. [2021-06-05 20:03:24,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12515 to 10609. [2021-06-05 20:03:24,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10609 states, 10607 states have (on average 2.71499952861318) internal successors, (28798), 10608 states have internal predecessors, (28798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:24,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10609 states to 10609 states and 28798 transitions. [2021-06-05 20:03:24,552 INFO L78 Accepts]: Start accepts. Automaton has 10609 states and 28798 transitions. Word has length 114 [2021-06-05 20:03:24,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:24,552 INFO L482 AbstractCegarLoop]: Abstraction has 10609 states and 28798 transitions. [2021-06-05 20:03:24,552 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:24,552 INFO L276 IsEmpty]: Start isEmpty. Operand 10609 states and 28798 transitions. [2021-06-05 20:03:24,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:24,562 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:24,562 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] [2021-06-05 20:03:24,562 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-06-05 20:03:24,562 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 20:03:24,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:24,563 INFO L82 PathProgramCache]: Analyzing trace with hash 125932496, now seen corresponding path program 58 times [2021-06-05 20:03:24,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:24,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289994306] [2021-06-05 20:03:24,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:24,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:24,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:24,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289994306] [2021-06-05 20:03:24,974 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289994306] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:24,974 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:24,974 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:24,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876866401] [2021-06-05 20:03:24,974 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:24,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:24,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:24,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:24,975 INFO L87 Difference]: Start difference. First operand 10609 states and 28798 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:25,774 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:03:25,926 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:03:26,116 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:26,315 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:26,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:26,511 INFO L93 Difference]: Finished difference Result 25217 states and 67035 transitions. [2021-06-05 20:03:26,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:26,511 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:26,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:26,540 INFO L225 Difference]: With dead ends: 25217 [2021-06-05 20:03:26,540 INFO L226 Difference]: Without dead ends: 25217 [2021-06-05 20:03:26,540 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1391.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:26,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25217 states. [2021-06-05 20:03:26,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25217 to 10721. [2021-06-05 20:03:26,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10721 states, 10719 states have (on average 2.7172310849892716) internal successors, (29126), 10720 states have internal predecessors, (29126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:26,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10721 states to 10721 states and 29126 transitions. [2021-06-05 20:03:26,761 INFO L78 Accepts]: Start accepts. Automaton has 10721 states and 29126 transitions. Word has length 114 [2021-06-05 20:03:26,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:26,761 INFO L482 AbstractCegarLoop]: Abstraction has 10721 states and 29126 transitions. [2021-06-05 20:03:26,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:26,761 INFO L276 IsEmpty]: Start isEmpty. Operand 10721 states and 29126 transitions. [2021-06-05 20:03:26,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:26,771 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:26,772 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] [2021-06-05 20:03:26,772 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-06-05 20:03:26,772 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 20:03:26,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:26,773 INFO L82 PathProgramCache]: Analyzing trace with hash 2039169232, now seen corresponding path program 59 times [2021-06-05 20:03:26,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:26,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746357804] [2021-06-05 20:03:26,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:27,104 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 20:03:27,105 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:27,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746357804] [2021-06-05 20:03:27,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746357804] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:27,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:27,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:27,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650131880] [2021-06-05 20:03:27,105 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:27,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:27,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:27,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:27,105 INFO L87 Difference]: Start difference. First operand 10721 states and 29126 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:27,865 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:03:28,037 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:28,209 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:28,406 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:28,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:28,592 INFO L93 Difference]: Finished difference Result 29930 states and 79470 transitions. [2021-06-05 20:03:28,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:28,592 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:28,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:28,625 INFO L225 Difference]: With dead ends: 29930 [2021-06-05 20:03:28,625 INFO L226 Difference]: Without dead ends: 29930 [2021-06-05 20:03:28,625 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1322.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:28,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29930 states. [2021-06-05 20:03:28,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29930 to 10749. [2021-06-05 20:03:28,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10749 states, 10747 states have (on average 2.7177817065227505) internal successors, (29208), 10748 states have internal predecessors, (29208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:28,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10749 states to 10749 states and 29208 transitions. [2021-06-05 20:03:28,908 INFO L78 Accepts]: Start accepts. Automaton has 10749 states and 29208 transitions. Word has length 114 [2021-06-05 20:03:28,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:28,908 INFO L482 AbstractCegarLoop]: Abstraction has 10749 states and 29208 transitions. [2021-06-05 20:03:28,908 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:28,908 INFO L276 IsEmpty]: Start isEmpty. Operand 10749 states and 29208 transitions. [2021-06-05 20:03:28,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:28,919 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:28,919 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] [2021-06-05 20:03:28,919 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-06-05 20:03:28,919 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 20:03:28,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:28,920 INFO L82 PathProgramCache]: Analyzing trace with hash 950696046, now seen corresponding path program 60 times [2021-06-05 20:03:28,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:28,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723182571] [2021-06-05 20:03:28,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:29,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:29,264 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:29,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723182571] [2021-06-05 20:03:29,264 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723182571] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:29,264 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:29,264 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:29,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129102976] [2021-06-05 20:03:29,264 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:29,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:29,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:29,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:29,265 INFO L87 Difference]: Start difference. First operand 10749 states and 29208 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:30,017 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:03:30,187 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:30,371 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:03:30,564 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:03:30,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:30,739 INFO L93 Difference]: Finished difference Result 26710 states and 70549 transitions. [2021-06-05 20:03:30,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:30,740 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:30,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:30,770 INFO L225 Difference]: With dead ends: 26710 [2021-06-05 20:03:30,770 INFO L226 Difference]: Without dead ends: 26710 [2021-06-05 20:03:30,770 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1332.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:30,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26710 states. [2021-06-05 20:03:30,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26710 to 10665. [2021-06-05 20:03:31,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10665 states, 10663 states have (on average 2.7161211666510363) internal successors, (28962), 10664 states have internal predecessors, (28962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:31,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10665 states to 10665 states and 28962 transitions. [2021-06-05 20:03:31,017 INFO L78 Accepts]: Start accepts. Automaton has 10665 states and 28962 transitions. Word has length 114 [2021-06-05 20:03:31,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:31,017 INFO L482 AbstractCegarLoop]: Abstraction has 10665 states and 28962 transitions. [2021-06-05 20:03:31,017 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:31,018 INFO L276 IsEmpty]: Start isEmpty. Operand 10665 states and 28962 transitions. [2021-06-05 20:03:31,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:31,028 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:31,028 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] [2021-06-05 20:03:31,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-06-05 20:03:31,028 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 20:03:31,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:31,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1934051440, now seen corresponding path program 61 times [2021-06-05 20:03:31,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:31,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812497025] [2021-06-05 20:03:31,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:31,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:31,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:31,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812497025] [2021-06-05 20:03:31,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812497025] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:31,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:31,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:31,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771345169] [2021-06-05 20:03:31,409 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:31,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:31,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:31,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:31,410 INFO L87 Difference]: Start difference. First operand 10665 states and 28962 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:32,070 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-06-05 20:03:32,236 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 20:03:32,398 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:03:32,553 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:32,728 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:32,926 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:33,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:33,104 INFO L93 Difference]: Finished difference Result 25431 states and 67389 transitions. [2021-06-05 20:03:33,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:33,105 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:33,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:33,133 INFO L225 Difference]: With dead ends: 25431 [2021-06-05 20:03:33,133 INFO L226 Difference]: Without dead ends: 25431 [2021-06-05 20:03:33,134 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1536.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:33,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25431 states. [2021-06-05 20:03:33,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25431 to 10707. [2021-06-05 20:03:33,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10707 states, 10705 states have (on average 2.7169546940681926) internal successors, (29085), 10706 states have internal predecessors, (29085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:33,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10707 states to 10707 states and 29085 transitions. [2021-06-05 20:03:33,352 INFO L78 Accepts]: Start accepts. Automaton has 10707 states and 29085 transitions. Word has length 114 [2021-06-05 20:03:33,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:33,352 INFO L482 AbstractCegarLoop]: Abstraction has 10707 states and 29085 transitions. [2021-06-05 20:03:33,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:33,352 INFO L276 IsEmpty]: Start isEmpty. Operand 10707 states and 29085 transitions. [2021-06-05 20:03:33,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:33,362 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:33,362 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] [2021-06-05 20:03:33,362 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-06-05 20:03:33,362 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 20:03:33,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:33,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1272442670, now seen corresponding path program 62 times [2021-06-05 20:03:33,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:33,363 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958190471] [2021-06-05 20:03:33,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:33,706 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:33,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958190471] [2021-06-05 20:03:33,706 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958190471] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:33,706 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:33,706 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:33,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718504257] [2021-06-05 20:03:33,706 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:33,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:33,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:33,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:33,707 INFO L87 Difference]: Start difference. First operand 10707 states and 29085 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:34,567 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:03:34,756 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:34,943 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:03:35,131 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:03:35,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:35,308 INFO L93 Difference]: Finished difference Result 26807 states and 70592 transitions. [2021-06-05 20:03:35,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:35,308 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:35,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:35,338 INFO L225 Difference]: With dead ends: 26807 [2021-06-05 20:03:35,338 INFO L226 Difference]: Without dead ends: 26807 [2021-06-05 20:03:35,338 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1437.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:35,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26807 states. [2021-06-05 20:03:35,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26807 to 10679. [2021-06-05 20:03:35,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10679 states, 10677 states have (on average 2.7163997377540507) internal successors, (29003), 10678 states have internal predecessors, (29003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:35,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10679 states to 10679 states and 29003 transitions. [2021-06-05 20:03:35,574 INFO L78 Accepts]: Start accepts. Automaton has 10679 states and 29003 transitions. Word has length 114 [2021-06-05 20:03:35,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:35,574 INFO L482 AbstractCegarLoop]: Abstraction has 10679 states and 29003 transitions. [2021-06-05 20:03:35,575 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:35,576 INFO L276 IsEmpty]: Start isEmpty. Operand 10679 states and 29003 transitions. [2021-06-05 20:03:35,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:35,588 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:35,588 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] [2021-06-05 20:03:35,588 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-06-05 20:03:35,588 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 20:03:35,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:35,589 INFO L82 PathProgramCache]: Analyzing trace with hash 2070306130, now seen corresponding path program 63 times [2021-06-05 20:03:35,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:35,589 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616881470] [2021-06-05 20:03:35,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:35,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:35,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:35,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616881470] [2021-06-05 20:03:35,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616881470] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:35,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:35,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:35,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672372971] [2021-06-05 20:03:35,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:35,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:35,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:35,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:35,960 INFO L87 Difference]: Start difference. First operand 10679 states and 29003 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:36,740 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:03:36,902 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:37,087 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:03:37,279 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:03:37,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:37,469 INFO L93 Difference]: Finished difference Result 25680 states and 67792 transitions. [2021-06-05 20:03:37,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:37,469 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:37,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:37,497 INFO L225 Difference]: With dead ends: 25680 [2021-06-05 20:03:37,498 INFO L226 Difference]: Without dead ends: 25680 [2021-06-05 20:03:37,498 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1363.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:37,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25680 states. [2021-06-05 20:03:37,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25680 to 10693. [2021-06-05 20:03:37,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10693 states, 10691 states have (on average 2.716677579272285) internal successors, (29044), 10692 states have internal predecessors, (29044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:37,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10693 states to 10693 states and 29044 transitions. [2021-06-05 20:03:37,714 INFO L78 Accepts]: Start accepts. Automaton has 10693 states and 29044 transitions. Word has length 114 [2021-06-05 20:03:37,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:37,715 INFO L482 AbstractCegarLoop]: Abstraction has 10693 states and 29044 transitions. [2021-06-05 20:03:37,715 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:37,715 INFO L276 IsEmpty]: Start isEmpty. Operand 10693 states and 29044 transitions. [2021-06-05 20:03:37,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:37,724 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:37,724 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] [2021-06-05 20:03:37,725 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-06-05 20:03:37,725 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 20:03:37,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:37,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1821759150, now seen corresponding path program 64 times [2021-06-05 20:03:37,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:37,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104409759] [2021-06-05 20:03:37,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:38,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:38,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:38,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104409759] [2021-06-05 20:03:38,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104409759] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:38,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:38,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:38,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330454426] [2021-06-05 20:03:38,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:38,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:38,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:38,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:38,067 INFO L87 Difference]: Start difference. First operand 10693 states and 29044 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:38,827 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:03:38,999 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:39,171 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:39,367 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:39,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:39,519 INFO L93 Difference]: Finished difference Result 20886 states and 55284 transitions. [2021-06-05 20:03:39,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:39,519 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:39,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:39,540 INFO L225 Difference]: With dead ends: 20886 [2021-06-05 20:03:39,540 INFO L226 Difference]: Without dead ends: 20886 [2021-06-05 20:03:39,540 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1333.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:39,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20886 states. [2021-06-05 20:03:39,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20886 to 10497. [2021-06-05 20:03:39,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10497 states, 10495 states have (on average 2.712720343020486) internal successors, (28470), 10496 states have internal predecessors, (28470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:39,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10497 states to 10497 states and 28470 transitions. [2021-06-05 20:03:39,728 INFO L78 Accepts]: Start accepts. Automaton has 10497 states and 28470 transitions. Word has length 114 [2021-06-05 20:03:39,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:39,729 INFO L482 AbstractCegarLoop]: Abstraction has 10497 states and 28470 transitions. [2021-06-05 20:03:39,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:39,729 INFO L276 IsEmpty]: Start isEmpty. Operand 10497 states and 28470 transitions. [2021-06-05 20:03:39,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:39,739 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:39,739 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] [2021-06-05 20:03:39,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-06-05 20:03:39,739 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 20:03:39,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:39,740 INFO L82 PathProgramCache]: Analyzing trace with hash 31254258, now seen corresponding path program 65 times [2021-06-05 20:03:39,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:39,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018070022] [2021-06-05 20:03:39,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:40,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:40,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018070022] [2021-06-05 20:03:40,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018070022] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:40,159 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:40,159 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:40,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149472696] [2021-06-05 20:03:40,159 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:40,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:40,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:40,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:40,160 INFO L87 Difference]: Start difference. First operand 10497 states and 28470 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:40,915 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:03:41,066 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:03:41,261 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:41,458 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:41,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:41,652 INFO L93 Difference]: Finished difference Result 30283 states and 80722 transitions. [2021-06-05 20:03:41,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:41,653 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:41,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:41,684 INFO L225 Difference]: With dead ends: 30283 [2021-06-05 20:03:41,684 INFO L226 Difference]: Without dead ends: 30283 [2021-06-05 20:03:41,684 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1399.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:41,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30283 states. [2021-06-05 20:03:41,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30283 to 10581. [2021-06-05 20:03:41,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10581 states, 10579 states have (on average 2.7144342565459874) internal successors, (28716), 10580 states have internal predecessors, (28716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:41,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10581 states to 10581 states and 28716 transitions. [2021-06-05 20:03:41,926 INFO L78 Accepts]: Start accepts. Automaton has 10581 states and 28716 transitions. Word has length 114 [2021-06-05 20:03:41,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:41,926 INFO L482 AbstractCegarLoop]: Abstraction has 10581 states and 28716 transitions. [2021-06-05 20:03:41,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:41,926 INFO L276 IsEmpty]: Start isEmpty. Operand 10581 states and 28716 transitions. [2021-06-05 20:03:41,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:41,936 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:41,936 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] [2021-06-05 20:03:41,937 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-06-05 20:03:41,937 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 20:03:41,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:41,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1944490994, now seen corresponding path program 66 times [2021-06-05 20:03:41,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:41,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142009366] [2021-06-05 20:03:41,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:42,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:42,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:42,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142009366] [2021-06-05 20:03:42,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142009366] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:42,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:42,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:42,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75299809] [2021-06-05 20:03:42,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:42,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:42,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:42,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:42,308 INFO L87 Difference]: Start difference. First operand 10581 states and 28716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:43,058 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:03:43,235 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:43,410 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:43,606 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:43,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:43,795 INFO L93 Difference]: Finished difference Result 30451 states and 81046 transitions. [2021-06-05 20:03:43,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:43,796 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:43,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:43,827 INFO L225 Difference]: With dead ends: 30451 [2021-06-05 20:03:43,827 INFO L226 Difference]: Without dead ends: 30451 [2021-06-05 20:03:43,827 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1363.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:43,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30451 states. [2021-06-05 20:03:44,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30451 to 10609. [2021-06-05 20:03:44,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10609 states, 10607 states have (on average 2.71499952861318) internal successors, (28798), 10608 states have internal predecessors, (28798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:44,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10609 states to 10609 states and 28798 transitions. [2021-06-05 20:03:44,070 INFO L78 Accepts]: Start accepts. Automaton has 10609 states and 28798 transitions. Word has length 114 [2021-06-05 20:03:44,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:44,070 INFO L482 AbstractCegarLoop]: Abstraction has 10609 states and 28798 transitions. [2021-06-05 20:03:44,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:44,070 INFO L276 IsEmpty]: Start isEmpty. Operand 10609 states and 28798 transitions. [2021-06-05 20:03:44,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:44,080 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:44,080 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] [2021-06-05 20:03:44,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-06-05 20:03:44,081 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 20:03:44,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:44,081 INFO L82 PathProgramCache]: Analyzing trace with hash 856017808, now seen corresponding path program 67 times [2021-06-05 20:03:44,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:44,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799101707] [2021-06-05 20:03:44,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:44,439 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 20:03:44,439 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:44,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799101707] [2021-06-05 20:03:44,440 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799101707] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:44,440 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:44,440 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:44,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229785440] [2021-06-05 20:03:44,440 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:44,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:44,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:44,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:44,440 INFO L87 Difference]: Start difference. First operand 10609 states and 28798 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:45,212 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:03:45,394 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:45,588 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:03:45,815 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:03:46,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:46,016 INFO L93 Difference]: Finished difference Result 29305 states and 77332 transitions. [2021-06-05 20:03:46,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:46,017 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:46,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:46,049 INFO L225 Difference]: With dead ends: 29305 [2021-06-05 20:03:46,049 INFO L226 Difference]: Without dead ends: 29305 [2021-06-05 20:03:46,049 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1380.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:46,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29305 states. [2021-06-05 20:03:46,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29305 to 10525. [2021-06-05 20:03:46,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10525 states, 10523 states have (on average 2.7132946878266653) internal successors, (28552), 10524 states have internal predecessors, (28552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:46,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10525 states to 10525 states and 28552 transitions. [2021-06-05 20:03:46,292 INFO L78 Accepts]: Start accepts. Automaton has 10525 states and 28552 transitions. Word has length 114 [2021-06-05 20:03:46,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:46,292 INFO L482 AbstractCegarLoop]: Abstraction has 10525 states and 28552 transitions. [2021-06-05 20:03:46,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:46,292 INFO L276 IsEmpty]: Start isEmpty. Operand 10525 states and 28552 transitions. [2021-06-05 20:03:46,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:46,302 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:46,302 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] [2021-06-05 20:03:46,302 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-06-05 20:03:46,302 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 20:03:46,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:46,303 INFO L82 PathProgramCache]: Analyzing trace with hash -347563056, now seen corresponding path program 68 times [2021-06-05 20:03:46,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:46,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864762120] [2021-06-05 20:03:46,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:46,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:46,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:46,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864762120] [2021-06-05 20:03:46,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864762120] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:46,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:46,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:46,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823567411] [2021-06-05 20:03:46,750 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:46,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:46,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:46,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:46,750 INFO L87 Difference]: Start difference. First operand 10525 states and 28552 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:47,558 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:03:47,706 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:03:47,903 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:48,102 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:48,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:48,264 INFO L93 Difference]: Finished difference Result 22954 states and 60717 transitions. [2021-06-05 20:03:48,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:48,264 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:48,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:48,288 INFO L225 Difference]: With dead ends: 22954 [2021-06-05 20:03:48,289 INFO L226 Difference]: Without dead ends: 22954 [2021-06-05 20:03:48,289 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1439.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:48,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22954 states. [2021-06-05 20:03:48,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22954 to 10469. [2021-06-05 20:03:48,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10469 states, 10467 states have (on average 2.712142925384542) internal successors, (28388), 10468 states have internal predecessors, (28388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:48,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10469 states to 10469 states and 28388 transitions. [2021-06-05 20:03:48,505 INFO L78 Accepts]: Start accepts. Automaton has 10469 states and 28388 transitions. Word has length 114 [2021-06-05 20:03:48,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:48,505 INFO L482 AbstractCegarLoop]: Abstraction has 10469 states and 28388 transitions. [2021-06-05 20:03:48,505 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:48,505 INFO L276 IsEmpty]: Start isEmpty. Operand 10469 states and 28388 transitions. [2021-06-05 20:03:48,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:48,516 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:48,516 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, 1] [2021-06-05 20:03:48,516 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-06-05 20:03:48,516 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 20:03:48,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:48,517 INFO L82 PathProgramCache]: Analyzing trace with hash -374648050, now seen corresponding path program 69 times [2021-06-05 20:03:48,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:48,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937924811] [2021-06-05 20:03:48,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:48,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:48,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:48,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937924811] [2021-06-05 20:03:48,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937924811] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:48,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:48,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:48,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897734336] [2021-06-05 20:03:48,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:48,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:48,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:48,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:48,886 INFO L87 Difference]: Start difference. First operand 10469 states and 28388 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:49,530 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-06-05 20:03:49,675 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:03:49,826 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:03:50,024 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:50,224 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:50,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:50,401 INFO L93 Difference]: Finished difference Result 21721 states and 58092 transitions. [2021-06-05 20:03:50,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:50,401 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:50,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:50,425 INFO L225 Difference]: With dead ends: 21721 [2021-06-05 20:03:50,425 INFO L226 Difference]: Without dead ends: 21721 [2021-06-05 20:03:50,425 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1355.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:50,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21721 states. [2021-06-05 20:03:50,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21721 to 10525. [2021-06-05 20:03:50,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10525 states, 10523 states have (on average 2.7132946878266653) internal successors, (28552), 10524 states have internal predecessors, (28552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:50,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10525 states to 10525 states and 28552 transitions. [2021-06-05 20:03:50,629 INFO L78 Accepts]: Start accepts. Automaton has 10525 states and 28552 transitions. Word has length 114 [2021-06-05 20:03:50,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:50,629 INFO L482 AbstractCegarLoop]: Abstraction has 10525 states and 28552 transitions. [2021-06-05 20:03:50,630 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:50,630 INFO L276 IsEmpty]: Start isEmpty. Operand 10525 states and 28552 transitions. [2021-06-05 20:03:50,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:50,640 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:50,641 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] [2021-06-05 20:03:50,641 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-06-05 20:03:50,641 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 20:03:50,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:50,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1538588686, now seen corresponding path program 70 times [2021-06-05 20:03:50,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:50,641 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241990861] [2021-06-05 20:03:50,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:50,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:03:50,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:50,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241990861] [2021-06-05 20:03:50,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241990861] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:50,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:51,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:51,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265005637] [2021-06-05 20:03:51,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:51,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:51,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:51,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:51,001 INFO L87 Difference]: Start difference. First operand 10525 states and 28552 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:51,786 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:03:51,961 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:52,135 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:52,332 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:52,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:52,501 INFO L93 Difference]: Finished difference Result 21889 states and 58416 transitions. [2021-06-05 20:03:52,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:52,501 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:52,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:52,526 INFO L225 Difference]: With dead ends: 21889 [2021-06-05 20:03:52,526 INFO L226 Difference]: Without dead ends: 21889 [2021-06-05 20:03:52,526 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1383.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:52,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21889 states. [2021-06-05 20:03:52,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21889 to 10539. [2021-06-05 20:03:52,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10539 states, 10537 states have (on average 2.7135807155736926) internal successors, (28593), 10538 states have internal predecessors, (28593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:52,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10539 states to 10539 states and 28593 transitions. [2021-06-05 20:03:52,740 INFO L78 Accepts]: Start accepts. Automaton has 10539 states and 28593 transitions. Word has length 114 [2021-06-05 20:03:52,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:52,740 INFO L482 AbstractCegarLoop]: Abstraction has 10539 states and 28593 transitions. [2021-06-05 20:03:52,741 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:52,741 INFO L276 IsEmpty]: Start isEmpty. Operand 10539 states and 28593 transitions. [2021-06-05 20:03:52,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:52,751 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:52,751 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] [2021-06-05 20:03:52,751 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-06-05 20:03:52,751 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 20:03:52,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:52,751 INFO L82 PathProgramCache]: Analyzing trace with hash 450115500, now seen corresponding path program 71 times [2021-06-05 20:03:52,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:52,751 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289345221] [2021-06-05 20:03:52,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:53,134 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 20:03:53,134 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:53,134 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289345221] [2021-06-05 20:03:53,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289345221] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:53,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:53,134 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:53,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306646659] [2021-06-05 20:03:53,135 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:53,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:53,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:53,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:53,135 INFO L87 Difference]: Start difference. First operand 10539 states and 28593 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:53,910 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:03:54,090 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:03:54,281 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:03:54,477 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:03:54,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:54,650 INFO L93 Difference]: Finished difference Result 20743 states and 54702 transitions. [2021-06-05 20:03:54,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:54,650 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:54,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:54,675 INFO L225 Difference]: With dead ends: 20743 [2021-06-05 20:03:54,675 INFO L226 Difference]: Without dead ends: 20743 [2021-06-05 20:03:54,675 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1374.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:54,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20743 states. [2021-06-05 20:03:54,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20743 to 10357. [2021-06-05 20:03:54,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10357 states, 10355 states have (on average 2.7098020280057944) internal successors, (28060), 10356 states have internal predecessors, (28060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:54,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10357 states to 10357 states and 28060 transitions. [2021-06-05 20:03:54,875 INFO L78 Accepts]: Start accepts. Automaton has 10357 states and 28060 transitions. Word has length 114 [2021-06-05 20:03:54,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:54,875 INFO L482 AbstractCegarLoop]: Abstraction has 10357 states and 28060 transitions. [2021-06-05 20:03:54,875 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:54,875 INFO L276 IsEmpty]: Start isEmpty. Operand 10357 states and 28060 transitions. [2021-06-05 20:03:54,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:54,885 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:54,885 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] [2021-06-05 20:03:54,885 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-06-05 20:03:54,885 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 20:03:54,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:54,886 INFO L82 PathProgramCache]: Analyzing trace with hash -753465364, now seen corresponding path program 72 times [2021-06-05 20:03:54,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:54,886 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274405990] [2021-06-05 20:03:54,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:55,344 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 20:03:55,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:55,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274405990] [2021-06-05 20:03:55,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274405990] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:55,344 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:55,344 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:55,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130727801] [2021-06-05 20:03:55,345 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:55,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:55,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:55,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:55,345 INFO L87 Difference]: Start difference. First operand 10357 states and 28060 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:56,146 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:03:56,294 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:03:56,495 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:56,700 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:56,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:56,867 INFO L93 Difference]: Finished difference Result 20881 states and 55296 transitions. [2021-06-05 20:03:56,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:56,868 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:56,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:56,890 INFO L225 Difference]: With dead ends: 20881 [2021-06-05 20:03:56,890 INFO L226 Difference]: Without dead ends: 20881 [2021-06-05 20:03:56,891 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1437.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:56,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20881 states. [2021-06-05 20:03:57,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20881 to 10329. [2021-06-05 20:03:57,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10329 states, 10327 states have (on average 2.7092088699525516) internal successors, (27978), 10328 states have internal predecessors, (27978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:57,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10329 states to 10329 states and 27978 transitions. [2021-06-05 20:03:57,122 INFO L78 Accepts]: Start accepts. Automaton has 10329 states and 27978 transitions. Word has length 114 [2021-06-05 20:03:57,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:57,122 INFO L482 AbstractCegarLoop]: Abstraction has 10329 states and 27978 transitions. [2021-06-05 20:03:57,122 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:57,122 INFO L276 IsEmpty]: Start isEmpty. Operand 10329 states and 27978 transitions. [2021-06-05 20:03:57,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:57,132 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:57,133 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] [2021-06-05 20:03:57,133 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-06-05 20:03:57,133 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 20:03:57,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:57,133 INFO L82 PathProgramCache]: Analyzing trace with hash -413221006, now seen corresponding path program 73 times [2021-06-05 20:03:57,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:57,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90886471] [2021-06-05 20:03:57,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:57,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:57,486 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 20:03:57,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:57,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90886471] [2021-06-05 20:03:57,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90886471] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:57,486 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:57,486 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:57,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571233001] [2021-06-05 20:03:57,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:57,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:57,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:57,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:57,487 INFO L87 Difference]: Start difference. First operand 10329 states and 27978 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:58,231 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:03:58,380 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:03:58,574 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:03:58,776 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:03:58,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:03:58,919 INFO L93 Difference]: Finished difference Result 14275 states and 37776 transitions. [2021-06-05 20:03:58,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:03:58,919 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:03:58,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:03:58,935 INFO L225 Difference]: With dead ends: 14275 [2021-06-05 20:03:58,936 INFO L226 Difference]: Without dead ends: 14275 [2021-06-05 20:03:58,936 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1329.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:03:58,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14275 states. [2021-06-05 20:03:59,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14275 to 8647. [2021-06-05 20:03:59,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8647 states, 8645 states have (on average 2.6884904569115093) internal successors, (23242), 8646 states have internal predecessors, (23242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:59,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8647 states to 8647 states and 23242 transitions. [2021-06-05 20:03:59,075 INFO L78 Accepts]: Start accepts. Automaton has 8647 states and 23242 transitions. Word has length 114 [2021-06-05 20:03:59,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:03:59,075 INFO L482 AbstractCegarLoop]: Abstraction has 8647 states and 23242 transitions. [2021-06-05 20:03:59,075 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:03:59,075 INFO L276 IsEmpty]: Start isEmpty. Operand 8647 states and 23242 transitions. [2021-06-05 20:03:59,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:03:59,083 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:03:59,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:03:59,083 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-06-05 20:03:59,083 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 20:03:59,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:03:59,084 INFO L82 PathProgramCache]: Analyzing trace with hash -2052546514, now seen corresponding path program 74 times [2021-06-05 20:03:59,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:03:59,084 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734222001] [2021-06-05 20:03:59,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:03:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:03:59,416 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 20:03:59,416 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:03:59,416 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734222001] [2021-06-05 20:03:59,416 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734222001] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:03:59,416 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:03:59,416 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:03:59,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649599768] [2021-06-05 20:03:59,416 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:03:59,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:03:59,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:03:59,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:03:59,417 INFO L87 Difference]: Start difference. First operand 8647 states and 23242 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:00,206 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:04:00,357 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:04:00,547 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:00,749 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:00,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:00,944 INFO L93 Difference]: Finished difference Result 26892 states and 71356 transitions. [2021-06-05 20:04:00,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:00,944 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:00,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:00,976 INFO L225 Difference]: With dead ends: 26892 [2021-06-05 20:04:00,976 INFO L226 Difference]: Without dead ends: 26892 [2021-06-05 20:04:00,977 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1330.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:01,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26892 states. [2021-06-05 20:04:01,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26892 to 8805. [2021-06-05 20:04:01,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8805 states, 8803 states have (on average 2.6919232079972737) internal successors, (23697), 8804 states have internal predecessors, (23697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:01,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8805 states to 8805 states and 23697 transitions. [2021-06-05 20:04:01,197 INFO L78 Accepts]: Start accepts. Automaton has 8805 states and 23697 transitions. Word has length 114 [2021-06-05 20:04:01,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:01,198 INFO L482 AbstractCegarLoop]: Abstraction has 8805 states and 23697 transitions. [2021-06-05 20:04:01,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:01,198 INFO L276 IsEmpty]: Start isEmpty. Operand 8805 states and 23697 transitions. [2021-06-05 20:04:01,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:01,206 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:01,207 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] [2021-06-05 20:04:01,207 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-06-05 20:04:01,207 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 20:04:01,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:01,207 INFO L82 PathProgramCache]: Analyzing trace with hash -139309778, now seen corresponding path program 75 times [2021-06-05 20:04:01,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:01,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076133279] [2021-06-05 20:04:01,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:01,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:01,638 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:01,638 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076133279] [2021-06-05 20:04:01,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076133279] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:01,638 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:01,638 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:01,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207252348] [2021-06-05 20:04:01,638 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:01,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:01,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:01,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:01,639 INFO L87 Difference]: Start difference. First operand 8805 states and 23697 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:02,478 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:04:02,652 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:02,824 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:03,055 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:03,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:03,238 INFO L93 Difference]: Finished difference Result 29420 states and 77905 transitions. [2021-06-05 20:04:03,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:03,238 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:03,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:03,270 INFO L225 Difference]: With dead ends: 29420 [2021-06-05 20:04:03,270 INFO L226 Difference]: Without dead ends: 29420 [2021-06-05 20:04:03,271 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1473.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:03,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29420 states. [2021-06-05 20:04:03,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29420 to 8821. [2021-06-05 20:04:03,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8821 states, 8819 states have (on average 2.692255357750312) internal successors, (23743), 8820 states have internal predecessors, (23743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:03,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8821 states to 8821 states and 23743 transitions. [2021-06-05 20:04:03,516 INFO L78 Accepts]: Start accepts. Automaton has 8821 states and 23743 transitions. Word has length 114 [2021-06-05 20:04:03,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:03,517 INFO L482 AbstractCegarLoop]: Abstraction has 8821 states and 23743 transitions. [2021-06-05 20:04:03,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:03,517 INFO L276 IsEmpty]: Start isEmpty. Operand 8821 states and 23743 transitions. [2021-06-05 20:04:03,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:03,525 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:03,525 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] [2021-06-05 20:04:03,525 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-06-05 20:04:03,525 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 20:04:03,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:03,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1227782964, now seen corresponding path program 76 times [2021-06-05 20:04:03,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:03,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504606763] [2021-06-05 20:04:03,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:03,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:03,895 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:03,895 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504606763] [2021-06-05 20:04:03,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504606763] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:03,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:03,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:03,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724218736] [2021-06-05 20:04:03,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:03,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:03,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:03,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:03,896 INFO L87 Difference]: Start difference. First operand 8821 states and 23743 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:04,569 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 20:04:04,710 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:04:04,878 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:05,065 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:04:05,258 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:04:05,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:05,428 INFO L93 Difference]: Finished difference Result 27760 states and 73305 transitions. [2021-06-05 20:04:05,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:05,429 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:05,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:05,460 INFO L225 Difference]: With dead ends: 27760 [2021-06-05 20:04:05,460 INFO L226 Difference]: Without dead ends: 27760 [2021-06-05 20:04:05,460 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1390.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:05,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27760 states. [2021-06-05 20:04:05,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27760 to 8793. [2021-06-05 20:04:05,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8793 states, 8791 states have (on average 2.6894551245592084) internal successors, (23643), 8792 states have internal predecessors, (23643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:05,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8793 states to 8793 states and 23643 transitions. [2021-06-05 20:04:05,684 INFO L78 Accepts]: Start accepts. Automaton has 8793 states and 23643 transitions. Word has length 114 [2021-06-05 20:04:05,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:05,684 INFO L482 AbstractCegarLoop]: Abstraction has 8793 states and 23643 transitions. [2021-06-05 20:04:05,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:05,685 INFO L276 IsEmpty]: Start isEmpty. Operand 8793 states and 23643 transitions. [2021-06-05 20:04:05,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:05,692 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:05,692 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] [2021-06-05 20:04:05,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-06-05 20:04:05,693 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 20:04:05,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:05,693 INFO L82 PathProgramCache]: Analyzing trace with hash 182436846, now seen corresponding path program 77 times [2021-06-05 20:04:05,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:05,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278016099] [2021-06-05 20:04:05,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:06,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:06,006 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:06,006 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278016099] [2021-06-05 20:04:06,006 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278016099] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:06,006 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:06,006 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:06,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056114540] [2021-06-05 20:04:06,006 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:06,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:06,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:06,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:06,007 INFO L87 Difference]: Start difference. First operand 8793 states and 23643 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:06,812 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:04:06,971 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:07,149 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:07,347 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:07,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:07,536 INFO L93 Difference]: Finished difference Result 26998 states and 71522 transitions. [2021-06-05 20:04:07,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:07,536 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:07,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:07,566 INFO L225 Difference]: With dead ends: 26998 [2021-06-05 20:04:07,566 INFO L226 Difference]: Without dead ends: 26998 [2021-06-05 20:04:07,566 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1317.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:07,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26998 states. [2021-06-05 20:04:07,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26998 to 8825. [2021-06-05 20:04:07,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8825 states, 8823 states have (on average 2.6901280743511276) internal successors, (23735), 8824 states have internal predecessors, (23735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:07,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8825 states to 8825 states and 23735 transitions. [2021-06-05 20:04:07,788 INFO L78 Accepts]: Start accepts. Automaton has 8825 states and 23735 transitions. Word has length 114 [2021-06-05 20:04:07,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:07,788 INFO L482 AbstractCegarLoop]: Abstraction has 8825 states and 23735 transitions. [2021-06-05 20:04:07,788 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:07,788 INFO L276 IsEmpty]: Start isEmpty. Operand 8825 states and 23735 transitions. [2021-06-05 20:04:07,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:07,797 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:07,797 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] [2021-06-05 20:04:07,797 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-06-05 20:04:07,797 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 20:04:07,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:07,798 INFO L82 PathProgramCache]: Analyzing trace with hash -906036340, now seen corresponding path program 78 times [2021-06-05 20:04:07,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:07,798 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515336720] [2021-06-05 20:04:07,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:08,116 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 20:04:08,117 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:08,117 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515336720] [2021-06-05 20:04:08,117 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515336720] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:08,117 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:08,117 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:08,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340053876] [2021-06-05 20:04:08,117 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:08,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:08,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:08,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:08,118 INFO L87 Difference]: Start difference. First operand 8825 states and 23735 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:08,904 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:04:09,059 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:09,246 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:04:09,435 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:04:09,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:09,607 INFO L93 Difference]: Finished difference Result 27811 states and 73326 transitions. [2021-06-05 20:04:09,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:09,607 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:09,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:09,637 INFO L225 Difference]: With dead ends: 27811 [2021-06-05 20:04:09,637 INFO L226 Difference]: Without dead ends: 27811 [2021-06-05 20:04:09,638 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1346.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:09,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27811 states. [2021-06-05 20:04:09,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27811 to 8809. [2021-06-05 20:04:09,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8809 states, 8807 states have (on average 2.6897922107414556) internal successors, (23689), 8808 states have internal predecessors, (23689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:09,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8809 states to 8809 states and 23689 transitions. [2021-06-05 20:04:09,863 INFO L78 Accepts]: Start accepts. Automaton has 8809 states and 23689 transitions. Word has length 114 [2021-06-05 20:04:09,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:09,864 INFO L482 AbstractCegarLoop]: Abstraction has 8809 states and 23689 transitions. [2021-06-05 20:04:09,864 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:09,864 INFO L276 IsEmpty]: Start isEmpty. Operand 8809 states and 23689 transitions. [2021-06-05 20:04:09,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:09,872 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:09,872 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] [2021-06-05 20:04:09,872 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-06-05 20:04:09,872 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 20:04:09,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:09,873 INFO L82 PathProgramCache]: Analyzing trace with hash -108172880, now seen corresponding path program 79 times [2021-06-05 20:04:09,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:09,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951234442] [2021-06-05 20:04:09,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:10,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:10,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:10,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951234442] [2021-06-05 20:04:10,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951234442] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:10,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:10,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:10,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761622765] [2021-06-05 20:04:10,199 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:10,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:10,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:10,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:10,200 INFO L87 Difference]: Start difference. First operand 8809 states and 23689 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:10,956 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:04:11,112 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:11,296 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:04:11,490 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:04:11,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:11,658 INFO L93 Difference]: Finished difference Result 27137 states and 71739 transitions. [2021-06-05 20:04:11,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:11,658 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:11,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:11,687 INFO L225 Difference]: With dead ends: 27137 [2021-06-05 20:04:11,687 INFO L226 Difference]: Without dead ends: 27137 [2021-06-05 20:04:11,688 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1321.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:11,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27137 states. [2021-06-05 20:04:11,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27137 to 8825. [2021-06-05 20:04:11,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8825 states, 8823 states have (on average 2.6901280743511276) internal successors, (23735), 8824 states have internal predecessors, (23735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:11,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8825 states to 8825 states and 23735 transitions. [2021-06-05 20:04:11,900 INFO L78 Accepts]: Start accepts. Automaton has 8825 states and 23735 transitions. Word has length 114 [2021-06-05 20:04:11,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:11,900 INFO L482 AbstractCegarLoop]: Abstraction has 8825 states and 23735 transitions. [2021-06-05 20:04:11,900 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:11,900 INFO L276 IsEmpty]: Start isEmpty. Operand 8825 states and 23735 transitions. [2021-06-05 20:04:11,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:11,908 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:11,908 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] [2021-06-05 20:04:11,908 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-06-05 20:04:11,908 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 20:04:11,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:11,909 INFO L82 PathProgramCache]: Analyzing trace with hash -356719860, now seen corresponding path program 80 times [2021-06-05 20:04:11,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:11,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740565647] [2021-06-05 20:04:11,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:12,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:12,277 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:12,277 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740565647] [2021-06-05 20:04:12,277 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740565647] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:12,277 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:12,277 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:12,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298371864] [2021-06-05 20:04:12,278 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:12,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:12,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:12,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:12,278 INFO L87 Difference]: Start difference. First operand 8825 states and 23735 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:13,109 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:04:13,271 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:13,447 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:13,646 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:13,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:13,815 INFO L93 Difference]: Finished difference Result 24484 states and 64979 transitions. [2021-06-05 20:04:13,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:13,816 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:13,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:13,841 INFO L225 Difference]: With dead ends: 24484 [2021-06-05 20:04:13,841 INFO L226 Difference]: Without dead ends: 24484 [2021-06-05 20:04:13,841 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1390.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:13,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24484 states. [2021-06-05 20:04:14,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24484 to 8781. [2021-06-05 20:04:14,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8781 states, 8779 states have (on average 2.6883471921631164) internal successors, (23601), 8780 states have internal predecessors, (23601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:14,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8781 states to 8781 states and 23601 transitions. [2021-06-05 20:04:14,078 INFO L78 Accepts]: Start accepts. Automaton has 8781 states and 23601 transitions. Word has length 114 [2021-06-05 20:04:14,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:14,078 INFO L482 AbstractCegarLoop]: Abstraction has 8781 states and 23601 transitions. [2021-06-05 20:04:14,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:14,078 INFO L276 IsEmpty]: Start isEmpty. Operand 8781 states and 23601 transitions. [2021-06-05 20:04:14,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:14,086 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:14,086 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] [2021-06-05 20:04:14,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-06-05 20:04:14,086 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 20:04:14,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:14,087 INFO L82 PathProgramCache]: Analyzing trace with hash -2147224752, now seen corresponding path program 81 times [2021-06-05 20:04:14,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:14,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119389317] [2021-06-05 20:04:14,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:14,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:14,431 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:14,431 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119389317] [2021-06-05 20:04:14,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119389317] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:14,431 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:14,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:14,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327222906] [2021-06-05 20:04:14,432 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:14,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:14,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:14,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:14,432 INFO L87 Difference]: Start difference. First operand 8781 states and 23601 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:15,227 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:04:15,379 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:04:15,590 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:15,793 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:15,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:15,981 INFO L93 Difference]: Finished difference Result 25620 states and 68271 transitions. [2021-06-05 20:04:15,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:15,981 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:15,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:16,009 INFO L225 Difference]: With dead ends: 25620 [2021-06-05 20:04:16,009 INFO L226 Difference]: Without dead ends: 25620 [2021-06-05 20:04:16,009 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1339.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:16,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25620 states. [2021-06-05 20:04:16,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25620 to 8829. [2021-06-05 20:04:16,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8829 states, 8827 states have (on average 2.6893621842075452) internal successors, (23739), 8828 states have internal predecessors, (23739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:16,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 23739 transitions. [2021-06-05 20:04:16,213 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 23739 transitions. Word has length 114 [2021-06-05 20:04:16,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:16,213 INFO L482 AbstractCegarLoop]: Abstraction has 8829 states and 23739 transitions. [2021-06-05 20:04:16,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:16,213 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 23739 transitions. [2021-06-05 20:04:16,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:16,221 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:16,221 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] [2021-06-05 20:04:16,221 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-06-05 20:04:16,221 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 20:04:16,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:16,222 INFO L82 PathProgramCache]: Analyzing trace with hash -233988016, now seen corresponding path program 82 times [2021-06-05 20:04:16,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:16,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038204] [2021-06-05 20:04:16,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:16,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:16,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:16,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038204] [2021-06-05 20:04:16,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038204] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:16,582 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:16,582 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:16,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112753548] [2021-06-05 20:04:16,582 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:16,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:16,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:16,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:16,583 INFO L87 Difference]: Start difference. First operand 8829 states and 23739 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:17,349 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:04:17,522 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:17,696 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:17,897 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:18,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:18,079 INFO L93 Difference]: Finished difference Result 25692 states and 68403 transitions. [2021-06-05 20:04:18,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:18,079 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:18,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:18,109 INFO L225 Difference]: With dead ends: 25692 [2021-06-05 20:04:18,109 INFO L226 Difference]: Without dead ends: 25692 [2021-06-05 20:04:18,109 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1348.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:18,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25692 states. [2021-06-05 20:04:18,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25692 to 8845. [2021-06-05 20:04:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 8843 states have (on average 2.6896980662671037) internal successors, (23785), 8844 states have internal predecessors, (23785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:18,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 23785 transitions. [2021-06-05 20:04:18,319 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 23785 transitions. Word has length 114 [2021-06-05 20:04:18,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:18,319 INFO L482 AbstractCegarLoop]: Abstraction has 8845 states and 23785 transitions. [2021-06-05 20:04:18,319 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:18,319 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 23785 transitions. [2021-06-05 20:04:18,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:18,327 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:18,328 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] [2021-06-05 20:04:18,328 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-06-05 20:04:18,328 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 20:04:18,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:18,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1322461202, now seen corresponding path program 83 times [2021-06-05 20:04:18,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:18,328 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203689951] [2021-06-05 20:04:18,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:18,702 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 20:04:18,702 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:18,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203689951] [2021-06-05 20:04:18,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203689951] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:18,702 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:18,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:18,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689722413] [2021-06-05 20:04:18,703 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:18,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:18,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:18,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:18,703 INFO L87 Difference]: Start difference. First operand 8845 states and 23785 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:19,514 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:04:19,692 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:19,882 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:04:20,088 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:04:20,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:20,274 INFO L93 Difference]: Finished difference Result 25102 states and 66481 transitions. [2021-06-05 20:04:20,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:20,274 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:20,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:20,300 INFO L225 Difference]: With dead ends: 25102 [2021-06-05 20:04:20,301 INFO L226 Difference]: Without dead ends: 25102 [2021-06-05 20:04:20,301 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1407.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:20,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25102 states. [2021-06-05 20:04:20,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25102 to 8797. [2021-06-05 20:04:20,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8797 states, 8795 states have (on average 2.6886867538374077) internal successors, (23647), 8796 states have internal predecessors, (23647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:20,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8797 states to 8797 states and 23647 transitions. [2021-06-05 20:04:20,500 INFO L78 Accepts]: Start accepts. Automaton has 8797 states and 23647 transitions. Word has length 114 [2021-06-05 20:04:20,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:20,500 INFO L482 AbstractCegarLoop]: Abstraction has 8797 states and 23647 transitions. [2021-06-05 20:04:20,501 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:20,501 INFO L276 IsEmpty]: Start isEmpty. Operand 8797 states and 23647 transitions. [2021-06-05 20:04:20,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:20,508 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:20,509 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] [2021-06-05 20:04:20,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-06-05 20:04:20,509 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 20:04:20,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:20,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1768925230, now seen corresponding path program 84 times [2021-06-05 20:04:20,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:20,509 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439132935] [2021-06-05 20:04:20,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:20,866 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 20:04:20,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:20,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439132935] [2021-06-05 20:04:20,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439132935] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:20,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:20,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:20,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549171018] [2021-06-05 20:04:20,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:20,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:20,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:20,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:20,867 INFO L87 Difference]: Start difference. First operand 8797 states and 23647 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:21,642 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:04:21,790 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:04:21,985 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:22,185 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:22,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:22,355 INFO L93 Difference]: Finished difference Result 21990 states and 58472 transitions. [2021-06-05 20:04:22,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:22,356 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:22,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:22,379 INFO L225 Difference]: With dead ends: 21990 [2021-06-05 20:04:22,379 INFO L226 Difference]: Without dead ends: 21990 [2021-06-05 20:04:22,379 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1329.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:22,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21990 states. [2021-06-05 20:04:22,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21990 to 8769. [2021-06-05 20:04:22,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8769 states, 8767 states have (on average 2.6879206113835976) internal successors, (23565), 8768 states have internal predecessors, (23565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:22,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8769 states to 8769 states and 23565 transitions. [2021-06-05 20:04:22,553 INFO L78 Accepts]: Start accepts. Automaton has 8769 states and 23565 transitions. Word has length 114 [2021-06-05 20:04:22,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:22,553 INFO L482 AbstractCegarLoop]: Abstraction has 8769 states and 23565 transitions. [2021-06-05 20:04:22,554 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:22,554 INFO L276 IsEmpty]: Start isEmpty. Operand 8769 states and 23565 transitions. [2021-06-05 20:04:22,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:22,561 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:22,561 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] [2021-06-05 20:04:22,561 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-06-05 20:04:22,561 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 20:04:22,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:22,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1214525874, now seen corresponding path program 85 times [2021-06-05 20:04:22,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:22,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364685433] [2021-06-05 20:04:22,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:22,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:22,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364685433] [2021-06-05 20:04:22,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364685433] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:22,888 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:22,888 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:22,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914695942] [2021-06-05 20:04:22,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:22,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:22,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:22,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:22,888 INFO L87 Difference]: Start difference. First operand 8769 states and 23565 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:23,675 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:04:23,823 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:04:24,013 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:24,213 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:24,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:24,386 INFO L93 Difference]: Finished difference Result 21763 states and 57831 transitions. [2021-06-05 20:04:24,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:24,386 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:24,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:24,409 INFO L225 Difference]: With dead ends: 21763 [2021-06-05 20:04:24,410 INFO L226 Difference]: Without dead ends: 21763 [2021-06-05 20:04:24,410 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1311.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:24,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21763 states. [2021-06-05 20:04:24,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21763 to 8897. [2021-06-05 20:04:24,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8897 states, 8895 states have (on average 2.6906127037661607) internal successors, (23933), 8896 states have internal predecessors, (23933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:24,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8897 states to 8897 states and 23933 transitions. [2021-06-05 20:04:24,595 INFO L78 Accepts]: Start accepts. Automaton has 8897 states and 23933 transitions. Word has length 114 [2021-06-05 20:04:24,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:24,595 INFO L482 AbstractCegarLoop]: Abstraction has 8897 states and 23933 transitions. [2021-06-05 20:04:24,596 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:24,596 INFO L276 IsEmpty]: Start isEmpty. Operand 8897 states and 23933 transitions. [2021-06-05 20:04:24,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:24,604 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:24,604 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] [2021-06-05 20:04:24,604 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-06-05 20:04:24,604 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 20:04:24,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:24,604 INFO L82 PathProgramCache]: Analyzing trace with hash 698710862, now seen corresponding path program 86 times [2021-06-05 20:04:24,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:24,605 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13595225] [2021-06-05 20:04:24,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:24,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:24,995 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:24,995 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13595225] [2021-06-05 20:04:24,995 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13595225] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:24,995 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:24,995 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:24,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517558553] [2021-06-05 20:04:24,995 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:24,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:24,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:24,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:24,996 INFO L87 Difference]: Start difference. First operand 8897 states and 23933 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:25,779 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:04:25,953 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:26,126 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:26,327 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:26,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:26,502 INFO L93 Difference]: Finished difference Result 24291 states and 64380 transitions. [2021-06-05 20:04:26,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:26,502 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:26,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:26,528 INFO L225 Difference]: With dead ends: 24291 [2021-06-05 20:04:26,528 INFO L226 Difference]: Without dead ends: 24291 [2021-06-05 20:04:26,528 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1321.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:26,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24291 states. [2021-06-05 20:04:26,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24291 to 8913. [2021-06-05 20:04:26,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8913 states, 8911 states have (on average 2.6909437773538323) internal successors, (23979), 8912 states have internal predecessors, (23979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:26,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8913 states to 8913 states and 23979 transitions. [2021-06-05 20:04:26,740 INFO L78 Accepts]: Start accepts. Automaton has 8913 states and 23979 transitions. Word has length 114 [2021-06-05 20:04:26,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:26,740 INFO L482 AbstractCegarLoop]: Abstraction has 8913 states and 23979 transitions. [2021-06-05 20:04:26,740 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:26,741 INFO L276 IsEmpty]: Start isEmpty. Operand 8913 states and 23979 transitions. [2021-06-05 20:04:26,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:26,749 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:26,749 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] [2021-06-05 20:04:26,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-06-05 20:04:26,749 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 20:04:26,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:26,750 INFO L82 PathProgramCache]: Analyzing trace with hash -389762324, now seen corresponding path program 87 times [2021-06-05 20:04:26,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:26,750 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867843335] [2021-06-05 20:04:26,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:27,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:27,072 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:27,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867843335] [2021-06-05 20:04:27,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867843335] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:27,073 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:27,073 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:27,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249448658] [2021-06-05 20:04:27,073 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:27,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:27,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:27,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:27,073 INFO L87 Difference]: Start difference. First operand 8913 states and 23979 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:27,866 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:04:28,042 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:28,231 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:04:28,431 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:04:28,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:28,605 INFO L93 Difference]: Finished difference Result 22631 states and 59780 transitions. [2021-06-05 20:04:28,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:28,606 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:28,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:28,629 INFO L225 Difference]: With dead ends: 22631 [2021-06-05 20:04:28,629 INFO L226 Difference]: Without dead ends: 22631 [2021-06-05 20:04:28,630 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1341.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:28,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22631 states. [2021-06-05 20:04:28,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22631 to 8865. [2021-06-05 20:04:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8865 states, 8863 states have (on average 2.689946970551732) internal successors, (23841), 8864 states have internal predecessors, (23841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:28,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8865 states to 8865 states and 23841 transitions. [2021-06-05 20:04:28,831 INFO L78 Accepts]: Start accepts. Automaton has 8865 states and 23841 transitions. Word has length 114 [2021-06-05 20:04:28,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:28,831 INFO L482 AbstractCegarLoop]: Abstraction has 8865 states and 23841 transitions. [2021-06-05 20:04:28,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:28,831 INFO L276 IsEmpty]: Start isEmpty. Operand 8865 states and 23841 transitions. [2021-06-05 20:04:28,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:28,840 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:28,840 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] [2021-06-05 20:04:28,840 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-06-05 20:04:28,840 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 20:04:28,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:28,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1020457486, now seen corresponding path program 88 times [2021-06-05 20:04:28,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:28,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937758564] [2021-06-05 20:04:28,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:29,162 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 20:04:29,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:29,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937758564] [2021-06-05 20:04:29,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937758564] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:29,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:29,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:29,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19985583] [2021-06-05 20:04:29,163 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:29,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:29,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:29,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:29,163 INFO L87 Difference]: Start difference. First operand 8865 states and 23841 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:29,934 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:04:30,091 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:30,265 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:30,462 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:30,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:30,635 INFO L93 Difference]: Finished difference Result 25621 states and 67559 transitions. [2021-06-05 20:04:30,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:30,635 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:30,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:30,666 INFO L225 Difference]: With dead ends: 25621 [2021-06-05 20:04:30,667 INFO L226 Difference]: Without dead ends: 25621 [2021-06-05 20:04:30,667 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1318.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:30,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25621 states. [2021-06-05 20:04:30,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25621 to 8897. [2021-06-05 20:04:30,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8897 states, 8895 states have (on average 2.6906127037661607) internal successors, (23933), 8896 states have internal predecessors, (23933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:30,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8897 states to 8897 states and 23933 transitions. [2021-06-05 20:04:30,896 INFO L78 Accepts]: Start accepts. Automaton has 8897 states and 23933 transitions. Word has length 114 [2021-06-05 20:04:30,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:30,896 INFO L482 AbstractCegarLoop]: Abstraction has 8897 states and 23933 transitions. [2021-06-05 20:04:30,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:30,897 INFO L276 IsEmpty]: Start isEmpty. Operand 8897 states and 23933 transitions. [2021-06-05 20:04:30,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:30,905 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:30,905 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] [2021-06-05 20:04:30,905 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-06-05 20:04:30,905 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 20:04:30,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:30,906 INFO L82 PathProgramCache]: Analyzing trace with hash -68015700, now seen corresponding path program 89 times [2021-06-05 20:04:30,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:30,906 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24737482] [2021-06-05 20:04:30,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:31,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:31,215 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:31,215 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24737482] [2021-06-05 20:04:31,215 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24737482] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:31,215 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:31,215 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:31,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822175037] [2021-06-05 20:04:31,215 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:31,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:31,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:31,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:31,216 INFO L87 Difference]: Start difference. First operand 8897 states and 23933 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:32,002 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:04:32,158 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:32,345 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:04:32,537 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:04:32,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:32,712 INFO L93 Difference]: Finished difference Result 26434 states and 69363 transitions. [2021-06-05 20:04:32,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:32,713 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:32,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:32,743 INFO L225 Difference]: With dead ends: 26434 [2021-06-05 20:04:32,744 INFO L226 Difference]: Without dead ends: 26434 [2021-06-05 20:04:32,744 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1333.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:32,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26434 states. [2021-06-05 20:04:32,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26434 to 8881. [2021-06-05 20:04:32,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8881 states, 8879 states have (on average 2.6902804369861473) internal successors, (23887), 8880 states have internal predecessors, (23887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:32,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8881 states to 8881 states and 23887 transitions. [2021-06-05 20:04:32,970 INFO L78 Accepts]: Start accepts. Automaton has 8881 states and 23887 transitions. Word has length 114 [2021-06-05 20:04:32,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:32,970 INFO L482 AbstractCegarLoop]: Abstraction has 8881 states and 23887 transitions. [2021-06-05 20:04:32,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:32,970 INFO L276 IsEmpty]: Start isEmpty. Operand 8881 states and 23887 transitions. [2021-06-05 20:04:32,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:32,979 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:32,979 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] [2021-06-05 20:04:32,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-06-05 20:04:32,979 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 20:04:32,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:32,979 INFO L82 PathProgramCache]: Analyzing trace with hash 729847760, now seen corresponding path program 90 times [2021-06-05 20:04:32,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:32,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4720373] [2021-06-05 20:04:32,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:33,300 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 20:04:33,300 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:33,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4720373] [2021-06-05 20:04:33,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4720373] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:33,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:33,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:33,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700943771] [2021-06-05 20:04:33,300 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:33,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:33,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:33,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:33,301 INFO L87 Difference]: Start difference. First operand 8881 states and 23887 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:34,079 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:04:34,236 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:34,418 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:04:34,612 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:04:34,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:34,785 INFO L93 Difference]: Finished difference Result 25760 states and 67776 transitions. [2021-06-05 20:04:34,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:34,786 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:34,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:34,817 INFO L225 Difference]: With dead ends: 25760 [2021-06-05 20:04:34,817 INFO L226 Difference]: Without dead ends: 25760 [2021-06-05 20:04:34,818 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1332.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:34,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25760 states. [2021-06-05 20:04:35,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25760 to 8897. [2021-06-05 20:04:35,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8897 states, 8895 states have (on average 2.6906127037661607) internal successors, (23933), 8896 states have internal predecessors, (23933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:35,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8897 states to 8897 states and 23933 transitions. [2021-06-05 20:04:35,035 INFO L78 Accepts]: Start accepts. Automaton has 8897 states and 23933 transitions. Word has length 114 [2021-06-05 20:04:35,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:35,035 INFO L482 AbstractCegarLoop]: Abstraction has 8897 states and 23933 transitions. [2021-06-05 20:04:35,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:35,035 INFO L276 IsEmpty]: Start isEmpty. Operand 8897 states and 23933 transitions. [2021-06-05 20:04:35,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:35,043 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:35,043 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] [2021-06-05 20:04:35,043 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-06-05 20:04:35,044 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:04:35,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:35,044 INFO L82 PathProgramCache]: Analyzing trace with hash 481300780, now seen corresponding path program 91 times [2021-06-05 20:04:35,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:35,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010868485] [2021-06-05 20:04:35,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:35,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:35,353 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:35,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010868485] [2021-06-05 20:04:35,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010868485] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:35,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:35,353 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:35,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397604319] [2021-06-05 20:04:35,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:35,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:35,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:35,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:35,353 INFO L87 Difference]: Start difference. First operand 8897 states and 23933 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:36,157 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:04:36,316 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:36,488 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:36,684 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:36,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:36,826 INFO L93 Difference]: Finished difference Result 22825 states and 60302 transitions. [2021-06-05 20:04:36,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:36,826 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:36,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:36,850 INFO L225 Difference]: With dead ends: 22825 [2021-06-05 20:04:36,850 INFO L226 Difference]: Without dead ends: 22825 [2021-06-05 20:04:36,850 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1318.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:36,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22825 states. [2021-06-05 20:04:37,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22825 to 8833. [2021-06-05 20:04:37,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8833 states, 8831 states have (on average 2.6892764126373003) internal successors, (23749), 8832 states have internal predecessors, (23749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:37,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8833 states to 8833 states and 23749 transitions. [2021-06-05 20:04:37,047 INFO L78 Accepts]: Start accepts. Automaton has 8833 states and 23749 transitions. Word has length 114 [2021-06-05 20:04:37,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:37,047 INFO L482 AbstractCegarLoop]: Abstraction has 8833 states and 23749 transitions. [2021-06-05 20:04:37,047 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:37,047 INFO L276 IsEmpty]: Start isEmpty. Operand 8833 states and 23749 transitions. [2021-06-05 20:04:37,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:37,055 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:37,055 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] [2021-06-05 20:04:37,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-06-05 20:04:37,055 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 20:04:37,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:37,056 INFO L82 PathProgramCache]: Analyzing trace with hash 885255312, now seen corresponding path program 92 times [2021-06-05 20:04:37,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:37,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501804096] [2021-06-05 20:04:37,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:37,361 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 20:04:37,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:37,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501804096] [2021-06-05 20:04:37,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501804096] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:37,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:37,362 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:37,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816005990] [2021-06-05 20:04:37,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:37,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:37,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:37,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:37,362 INFO L87 Difference]: Start difference. First operand 8833 states and 23749 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:38,133 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:04:38,293 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:38,470 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:38,666 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:38,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:38,822 INFO L93 Difference]: Finished difference Result 21341 states and 56641 transitions. [2021-06-05 20:04:38,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:38,822 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:38,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:38,844 INFO L225 Difference]: With dead ends: 21341 [2021-06-05 20:04:38,845 INFO L226 Difference]: Without dead ends: 21341 [2021-06-05 20:04:38,845 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1322.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:38,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21341 states. [2021-06-05 20:04:39,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21341 to 8897. [2021-06-05 20:04:39,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8897 states, 8895 states have (on average 2.6906127037661607) internal successors, (23933), 8896 states have internal predecessors, (23933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:39,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8897 states to 8897 states and 23933 transitions. [2021-06-05 20:04:39,038 INFO L78 Accepts]: Start accepts. Automaton has 8897 states and 23933 transitions. Word has length 114 [2021-06-05 20:04:39,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:39,038 INFO L482 AbstractCegarLoop]: Abstraction has 8897 states and 23933 transitions. [2021-06-05 20:04:39,038 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:39,038 INFO L276 IsEmpty]: Start isEmpty. Operand 8897 states and 23933 transitions. [2021-06-05 20:04:39,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:39,047 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:39,047 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] [2021-06-05 20:04:39,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-06-05 20:04:39,047 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 20:04:39,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:39,047 INFO L82 PathProgramCache]: Analyzing trace with hash -203217874, now seen corresponding path program 93 times [2021-06-05 20:04:39,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:39,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258617200] [2021-06-05 20:04:39,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:39,373 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 20:04:39,374 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:39,374 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258617200] [2021-06-05 20:04:39,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258617200] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:39,374 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:39,374 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:39,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646395107] [2021-06-05 20:04:39,374 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:39,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:39,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:39,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:39,375 INFO L87 Difference]: Start difference. First operand 8897 states and 23933 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:40,173 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:04:40,335 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:40,527 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:04:40,724 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:04:40,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:40,902 INFO L93 Difference]: Finished difference Result 22154 states and 58445 transitions. [2021-06-05 20:04:40,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:40,903 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:40,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:40,927 INFO L225 Difference]: With dead ends: 22154 [2021-06-05 20:04:40,927 INFO L226 Difference]: Without dead ends: 22154 [2021-06-05 20:04:40,928 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1345.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:40,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22154 states. [2021-06-05 20:04:41,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22154 to 8881. [2021-06-05 20:04:41,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8881 states, 8879 states have (on average 2.6902804369861473) internal successors, (23887), 8880 states have internal predecessors, (23887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:41,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8881 states to 8881 states and 23887 transitions. [2021-06-05 20:04:41,131 INFO L78 Accepts]: Start accepts. Automaton has 8881 states and 23887 transitions. Word has length 114 [2021-06-05 20:04:41,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:41,131 INFO L482 AbstractCegarLoop]: Abstraction has 8881 states and 23887 transitions. [2021-06-05 20:04:41,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:41,131 INFO L276 IsEmpty]: Start isEmpty. Operand 8881 states and 23887 transitions. [2021-06-05 20:04:41,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:41,140 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:41,140 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] [2021-06-05 20:04:41,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-06-05 20:04:41,140 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 20:04:41,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:41,140 INFO L82 PathProgramCache]: Analyzing trace with hash 594645586, now seen corresponding path program 94 times [2021-06-05 20:04:41,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:41,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547358082] [2021-06-05 20:04:41,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:41,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:41,511 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:41,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547358082] [2021-06-05 20:04:41,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547358082] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:41,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:41,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:41,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126245131] [2021-06-05 20:04:41,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:41,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:41,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:41,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:41,512 INFO L87 Difference]: Start difference. First operand 8881 states and 23887 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:42,275 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:04:42,433 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:42,615 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:04:42,806 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:04:42,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:42,978 INFO L93 Difference]: Finished difference Result 25267 states and 66395 transitions. [2021-06-05 20:04:42,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:42,978 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:42,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:43,006 INFO L225 Difference]: With dead ends: 25267 [2021-06-05 20:04:43,007 INFO L226 Difference]: Without dead ends: 25267 [2021-06-05 20:04:43,007 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1372.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:43,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25267 states. [2021-06-05 20:04:43,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25267 to 8897. [2021-06-05 20:04:43,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8897 states, 8895 states have (on average 2.6906127037661607) internal successors, (23933), 8896 states have internal predecessors, (23933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:43,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8897 states to 8897 states and 23933 transitions. [2021-06-05 20:04:43,229 INFO L78 Accepts]: Start accepts. Automaton has 8897 states and 23933 transitions. Word has length 114 [2021-06-05 20:04:43,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:43,229 INFO L482 AbstractCegarLoop]: Abstraction has 8897 states and 23933 transitions. [2021-06-05 20:04:43,229 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:43,229 INFO L276 IsEmpty]: Start isEmpty. Operand 8897 states and 23933 transitions. [2021-06-05 20:04:43,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:43,238 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:43,238 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] [2021-06-05 20:04:43,238 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-06-05 20:04:43,238 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 20:04:43,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:43,239 INFO L82 PathProgramCache]: Analyzing trace with hash 346098606, now seen corresponding path program 95 times [2021-06-05 20:04:43,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:43,239 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125718640] [2021-06-05 20:04:43,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:43,563 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 20:04:43,563 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:43,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125718640] [2021-06-05 20:04:43,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125718640] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:43,564 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:43,564 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:43,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491167639] [2021-06-05 20:04:43,564 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:43,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:43,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:43,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:43,565 INFO L87 Difference]: Start difference. First operand 8897 states and 23933 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:44,331 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:04:44,491 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:44,663 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:44,858 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:44,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:45,000 INFO L93 Difference]: Finished difference Result 22332 states and 58921 transitions. [2021-06-05 20:04:45,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:45,000 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:45,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:45,023 INFO L225 Difference]: With dead ends: 22332 [2021-06-05 20:04:45,023 INFO L226 Difference]: Without dead ends: 22332 [2021-06-05 20:04:45,023 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1321.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:45,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22332 states. [2021-06-05 20:04:45,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22332 to 8865. [2021-06-05 20:04:45,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8865 states, 8863 states have (on average 2.689946970551732) internal successors, (23841), 8864 states have internal predecessors, (23841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:45,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8865 states to 8865 states and 23841 transitions. [2021-06-05 20:04:45,218 INFO L78 Accepts]: Start accepts. Automaton has 8865 states and 23841 transitions. Word has length 114 [2021-06-05 20:04:45,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:45,218 INFO L482 AbstractCegarLoop]: Abstraction has 8865 states and 23841 transitions. [2021-06-05 20:04:45,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:45,218 INFO L276 IsEmpty]: Start isEmpty. Operand 8865 states and 23841 transitions. [2021-06-05 20:04:45,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:45,226 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:45,226 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] [2021-06-05 20:04:45,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-06-05 20:04:45,226 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 20:04:45,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:45,227 INFO L82 PathProgramCache]: Analyzing trace with hash -674171700, now seen corresponding path program 96 times [2021-06-05 20:04:45,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:45,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283186321] [2021-06-05 20:04:45,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:45,549 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 20:04:45,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:45,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283186321] [2021-06-05 20:04:45,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283186321] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:45,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:45,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:45,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972941680] [2021-06-05 20:04:45,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:45,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:45,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:45,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:45,551 INFO L87 Difference]: Start difference. First operand 8865 states and 23841 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:46,337 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:04:46,510 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:46,697 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:04:46,896 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:04:47,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:47,063 INFO L93 Difference]: Finished difference Result 21464 states and 56812 transitions. [2021-06-05 20:04:47,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:47,064 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:47,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:47,086 INFO L225 Difference]: With dead ends: 21464 [2021-06-05 20:04:47,086 INFO L226 Difference]: Without dead ends: 21464 [2021-06-05 20:04:47,086 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1345.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:47,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21464 states. [2021-06-05 20:04:47,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21464 to 8913. [2021-06-05 20:04:47,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8913 states, 8911 states have (on average 2.6909437773538323) internal successors, (23979), 8912 states have internal predecessors, (23979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:47,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8913 states to 8913 states and 23979 transitions. [2021-06-05 20:04:47,310 INFO L78 Accepts]: Start accepts. Automaton has 8913 states and 23979 transitions. Word has length 114 [2021-06-05 20:04:47,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:47,310 INFO L482 AbstractCegarLoop]: Abstraction has 8913 states and 23979 transitions. [2021-06-05 20:04:47,310 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:47,310 INFO L276 IsEmpty]: Start isEmpty. Operand 8913 states and 23979 transitions. [2021-06-05 20:04:47,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:47,318 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:47,318 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] [2021-06-05 20:04:47,319 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-06-05 20:04:47,319 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 20:04:47,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:47,319 INFO L82 PathProgramCache]: Analyzing trace with hash -922718680, now seen corresponding path program 97 times [2021-06-05 20:04:47,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:47,319 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935051499] [2021-06-05 20:04:47,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:47,677 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 20:04:47,677 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:47,677 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935051499] [2021-06-05 20:04:47,677 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935051499] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:47,677 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:47,677 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:47,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707826044] [2021-06-05 20:04:47,677 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:47,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:47,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:47,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:47,678 INFO L87 Difference]: Start difference. First operand 8913 states and 23979 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:48,436 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:04:48,605 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:48,779 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:48,976 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:49,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:49,121 INFO L93 Difference]: Finished difference Result 21304 states and 56410 transitions. [2021-06-05 20:04:49,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:49,122 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:49,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:49,144 INFO L225 Difference]: With dead ends: 21304 [2021-06-05 20:04:49,145 INFO L226 Difference]: Without dead ends: 21304 [2021-06-05 20:04:49,145 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1337.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:49,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21304 states. [2021-06-05 20:04:49,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21304 to 8897. [2021-06-05 20:04:49,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8897 states, 8895 states have (on average 2.6906127037661607) internal successors, (23933), 8896 states have internal predecessors, (23933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:49,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8897 states to 8897 states and 23933 transitions. [2021-06-05 20:04:49,331 INFO L78 Accepts]: Start accepts. Automaton has 8897 states and 23933 transitions. Word has length 114 [2021-06-05 20:04:49,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:49,332 INFO L482 AbstractCegarLoop]: Abstraction has 8897 states and 23933 transitions. [2021-06-05 20:04:49,332 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:49,332 INFO L276 IsEmpty]: Start isEmpty. Operand 8897 states and 23933 transitions. [2021-06-05 20:04:49,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:49,340 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:49,340 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] [2021-06-05 20:04:49,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-06-05 20:04:49,340 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 20:04:49,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:49,340 INFO L82 PathProgramCache]: Analyzing trace with hash -2079535984, now seen corresponding path program 98 times [2021-06-05 20:04:49,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:49,341 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439089039] [2021-06-05 20:04:49,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:49,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:49,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:49,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439089039] [2021-06-05 20:04:49,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439089039] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:49,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:49,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:49,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629174194] [2021-06-05 20:04:49,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:49,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:49,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:49,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:49,663 INFO L87 Difference]: Start difference. First operand 8897 states and 23933 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:50,424 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:04:50,572 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:04:50,760 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:50,959 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:51,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:51,110 INFO L93 Difference]: Finished difference Result 18737 states and 49864 transitions. [2021-06-05 20:04:51,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:51,110 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:51,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:51,129 INFO L225 Difference]: With dead ends: 18737 [2021-06-05 20:04:51,129 INFO L226 Difference]: Without dead ends: 18737 [2021-06-05 20:04:51,130 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1320.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:51,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18737 states. [2021-06-05 20:04:51,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18737 to 8781. [2021-06-05 20:04:51,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8781 states, 8779 states have (on average 2.6862968447431372) internal successors, (23583), 8780 states have internal predecessors, (23583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:51,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8781 states to 8781 states and 23583 transitions. [2021-06-05 20:04:51,290 INFO L78 Accepts]: Start accepts. Automaton has 8781 states and 23583 transitions. Word has length 114 [2021-06-05 20:04:51,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:51,290 INFO L482 AbstractCegarLoop]: Abstraction has 8781 states and 23583 transitions. [2021-06-05 20:04:51,290 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:51,290 INFO L276 IsEmpty]: Start isEmpty. Operand 8781 states and 23583 transitions. [2021-06-05 20:04:51,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:51,299 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:51,299 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] [2021-06-05 20:04:51,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-06-05 20:04:51,299 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 20:04:51,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:51,299 INFO L82 PathProgramCache]: Analyzing trace with hash 110017232, now seen corresponding path program 99 times [2021-06-05 20:04:51,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:51,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833788321] [2021-06-05 20:04:51,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:51,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:51,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833788321] [2021-06-05 20:04:51,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833788321] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:51,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:51,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:51,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270063009] [2021-06-05 20:04:51,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:51,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:51,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:51,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:51,663 INFO L87 Difference]: Start difference. First operand 8781 states and 23583 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:52,448 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:04:52,600 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:04:52,820 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:53,020 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:53,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:53,194 INFO L93 Difference]: Finished difference Result 21429 states and 56945 transitions. [2021-06-05 20:04:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:53,195 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:53,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:53,216 INFO L225 Difference]: With dead ends: 21429 [2021-06-05 20:04:53,216 INFO L226 Difference]: Without dead ends: 21429 [2021-06-05 20:04:53,216 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1375.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:53,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21429 states. [2021-06-05 20:04:53,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21429 to 8877. [2021-06-05 20:04:53,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:53,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-05 20:04:53,396 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-05 20:04:53,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:53,396 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-05 20:04:53,396 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:53,396 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-05 20:04:53,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:53,404 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:53,404 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] [2021-06-05 20:04:53,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-06-05 20:04:53,404 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 20:04:53,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:53,404 INFO L82 PathProgramCache]: Analyzing trace with hash 2023253968, now seen corresponding path program 100 times [2021-06-05 20:04:53,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:53,404 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980052320] [2021-06-05 20:04:53,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:53,719 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 20:04:53,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:53,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980052320] [2021-06-05 20:04:53,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980052320] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:53,720 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:53,720 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:53,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135181637] [2021-06-05 20:04:53,720 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:53,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:53,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:53,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:53,720 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:54,473 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:04:54,642 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:54,814 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:55,013 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:55,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:55,181 INFO L93 Difference]: Finished difference Result 23957 states and 63494 transitions. [2021-06-05 20:04:55,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:55,181 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:55,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:55,207 INFO L225 Difference]: With dead ends: 23957 [2021-06-05 20:04:55,207 INFO L226 Difference]: Without dead ends: 23957 [2021-06-05 20:04:55,207 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1317.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:55,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23957 states. [2021-06-05 20:04:55,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23957 to 8893. [2021-06-05 20:04:55,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8893 states, 8891 states have (on average 2.6886739399392643) internal successors, (23905), 8892 states have internal predecessors, (23905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:55,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 23905 transitions. [2021-06-05 20:04:55,418 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 23905 transitions. Word has length 114 [2021-06-05 20:04:55,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:55,418 INFO L482 AbstractCegarLoop]: Abstraction has 8893 states and 23905 transitions. [2021-06-05 20:04:55,418 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:55,418 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 23905 transitions. [2021-06-05 20:04:55,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:55,426 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:55,426 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] [2021-06-05 20:04:55,426 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-06-05 20:04:55,426 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 20:04:55,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:55,427 INFO L82 PathProgramCache]: Analyzing trace with hash 934780782, now seen corresponding path program 101 times [2021-06-05 20:04:55,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:55,427 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073546065] [2021-06-05 20:04:55,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:55,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:55,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:55,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073546065] [2021-06-05 20:04:55,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073546065] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:55,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:55,777 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:55,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417191243] [2021-06-05 20:04:55,778 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:55,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:55,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:55,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:55,778 INFO L87 Difference]: Start difference. First operand 8893 states and 23905 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:56,536 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:04:56,705 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:56,891 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:04:57,086 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:04:57,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:57,246 INFO L93 Difference]: Finished difference Result 22297 states and 58894 transitions. [2021-06-05 20:04:57,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:57,247 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:57,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:57,270 INFO L225 Difference]: With dead ends: 22297 [2021-06-05 20:04:57,270 INFO L226 Difference]: Without dead ends: 22297 [2021-06-05 20:04:57,270 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1347.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:57,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22297 states. [2021-06-05 20:04:57,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22297 to 8845. [2021-06-05 20:04:57,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 8843 states have (on average 2.687662557955445) internal successors, (23767), 8844 states have internal predecessors, (23767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:57,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 23767 transitions. [2021-06-05 20:04:57,457 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 23767 transitions. Word has length 114 [2021-06-05 20:04:57,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:57,457 INFO L482 AbstractCegarLoop]: Abstraction has 8845 states and 23767 transitions. [2021-06-05 20:04:57,457 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:57,457 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 23767 transitions. [2021-06-05 20:04:57,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:57,465 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:57,466 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] [2021-06-05 20:04:57,466 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-06-05 20:04:57,466 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 20:04:57,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:57,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1949966704, now seen corresponding path program 102 times [2021-06-05 20:04:57,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:57,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605609426] [2021-06-05 20:04:57,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:57,772 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 20:04:57,773 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:57,773 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605609426] [2021-06-05 20:04:57,773 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605609426] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:57,773 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:57,773 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:57,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565530581] [2021-06-05 20:04:57,773 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:57,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:57,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:57,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:57,774 INFO L87 Difference]: Start difference. First operand 8845 states and 23767 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:58,567 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:04:58,722 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:04:58,895 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:04:59,089 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:04:59,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:04:59,250 INFO L93 Difference]: Finished difference Result 21535 states and 57111 transitions. [2021-06-05 20:04:59,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:04:59,250 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:04:59,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:04:59,272 INFO L225 Difference]: With dead ends: 21535 [2021-06-05 20:04:59,272 INFO L226 Difference]: Without dead ends: 21535 [2021-06-05 20:04:59,272 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1339.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:04:59,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21535 states. [2021-06-05 20:04:59,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21535 to 8877. [2021-06-05 20:04:59,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:59,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-05 20:04:59,457 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-05 20:04:59,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:04:59,458 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-05 20:04:59,458 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:04:59,458 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-05 20:04:59,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:04:59,468 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:04:59,468 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] [2021-06-05 20:04:59,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-06-05 20:04:59,468 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 20:04:59,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:04:59,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1256527406, now seen corresponding path program 103 times [2021-06-05 20:04:59,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:04:59,469 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070864293] [2021-06-05 20:04:59,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:04:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:04:59,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:04:59,780 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:04:59,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070864293] [2021-06-05 20:04:59,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070864293] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:04:59,780 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:04:59,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:04:59,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828341384] [2021-06-05 20:04:59,780 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:04:59,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:04:59,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:04:59,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:04:59,781 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:00,549 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:05:00,704 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:00,891 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:05:01,081 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:05:01,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:01,240 INFO L93 Difference]: Finished difference Result 22348 states and 58915 transitions. [2021-06-05 20:05:01,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:01,241 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:01,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:01,263 INFO L225 Difference]: With dead ends: 22348 [2021-06-05 20:05:01,263 INFO L226 Difference]: Without dead ends: 22348 [2021-06-05 20:05:01,263 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1329.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:01,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22348 states. [2021-06-05 20:05:01,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22348 to 8861. [2021-06-05 20:05:01,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:01,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-06-05 20:05:01,444 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-06-05 20:05:01,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:01,444 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-06-05 20:05:01,444 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:01,444 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-06-05 20:05:01,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:01,451 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:01,452 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] [2021-06-05 20:05:01,452 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-06-05 20:05:01,452 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 20:05:01,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:01,452 INFO L82 PathProgramCache]: Analyzing trace with hash 2054390866, now seen corresponding path program 104 times [2021-06-05 20:05:01,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:01,452 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702275867] [2021-06-05 20:05:01,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:01,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:01,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:01,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702275867] [2021-06-05 20:05:01,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702275867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:01,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:01,760 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:01,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159805085] [2021-06-05 20:05:01,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:01,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:01,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:01,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:01,761 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:02,550 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:05:02,711 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:02,899 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:05:03,094 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:05:03,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:03,266 INFO L93 Difference]: Finished difference Result 21674 states and 57328 transitions. [2021-06-05 20:05:03,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:03,266 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:03,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:03,287 INFO L225 Difference]: With dead ends: 21674 [2021-06-05 20:05:03,288 INFO L226 Difference]: Without dead ends: 21674 [2021-06-05 20:05:03,288 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1328.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:03,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21674 states. [2021-06-05 20:05:03,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21674 to 8877. [2021-06-05 20:05:03,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:03,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-05 20:05:03,467 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-05 20:05:03,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:03,467 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-05 20:05:03,468 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:03,468 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-05 20:05:03,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:03,476 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:03,476 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] [2021-06-05 20:05:03,476 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-06-05 20:05:03,476 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 20:05:03,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:03,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1805843886, now seen corresponding path program 105 times [2021-06-05 20:05:03,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:03,477 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668160780] [2021-06-05 20:05:03,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:03,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:03,835 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:03,835 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668160780] [2021-06-05 20:05:03,835 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668160780] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:03,835 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:03,835 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:03,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668321153] [2021-06-05 20:05:03,836 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:03,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:03,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:03,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:03,836 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:04,610 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:05:04,773 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:04,948 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:05,143 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:05,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:05,292 INFO L93 Difference]: Finished difference Result 19021 states and 50568 transitions. [2021-06-05 20:05:05,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:05,292 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:05,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:05,312 INFO L225 Difference]: With dead ends: 19021 [2021-06-05 20:05:05,312 INFO L226 Difference]: Without dead ends: 19021 [2021-06-05 20:05:05,312 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1320.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:05,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19021 states. [2021-06-05 20:05:05,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19021 to 8813. [2021-06-05 20:05:05,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8813 states, 8811 states have (on average 2.6869821813642036) internal successors, (23675), 8812 states have internal predecessors, (23675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:05,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8813 states to 8813 states and 23675 transitions. [2021-06-05 20:05:05,491 INFO L78 Accepts]: Start accepts. Automaton has 8813 states and 23675 transitions. Word has length 114 [2021-06-05 20:05:05,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:05,491 INFO L482 AbstractCegarLoop]: Abstraction has 8813 states and 23675 transitions. [2021-06-05 20:05:05,491 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:05,491 INFO L276 IsEmpty]: Start isEmpty. Operand 8813 states and 23675 transitions. [2021-06-05 20:05:05,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:05,501 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:05,501 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] [2021-06-05 20:05:05,501 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-06-05 20:05:05,501 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 20:05:05,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:05,501 INFO L82 PathProgramCache]: Analyzing trace with hash 15338994, now seen corresponding path program 106 times [2021-06-05 20:05:05,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:05,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439751214] [2021-06-05 20:05:05,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:05,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:05,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:05,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439751214] [2021-06-05 20:05:05,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439751214] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:05,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:05,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:05,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297028031] [2021-06-05 20:05:05,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:05,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:05,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:05,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:05,838 INFO L87 Difference]: Start difference. First operand 8813 states and 23675 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:06,631 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:05:06,786 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:05:06,986 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:07,189 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:07,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:07,381 INFO L93 Difference]: Finished difference Result 24234 states and 64317 transitions. [2021-06-05 20:05:07,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:07,381 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:07,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:07,406 INFO L225 Difference]: With dead ends: 24234 [2021-06-05 20:05:07,406 INFO L226 Difference]: Without dead ends: 24234 [2021-06-05 20:05:07,407 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1340.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:07,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24234 states. [2021-06-05 20:05:07,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24234 to 8861. [2021-06-05 20:05:07,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:07,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-06-05 20:05:07,616 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-06-05 20:05:07,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:07,616 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-06-05 20:05:07,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:07,616 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-06-05 20:05:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:07,625 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:07,625 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] [2021-06-05 20:05:07,625 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-06-05 20:05:07,625 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 20:05:07,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:07,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1928575730, now seen corresponding path program 107 times [2021-06-05 20:05:07,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:07,625 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044929395] [2021-06-05 20:05:07,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:07,958 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 20:05:07,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:07,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044929395] [2021-06-05 20:05:07,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044929395] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:07,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:07,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:07,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426508834] [2021-06-05 20:05:07,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:07,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:07,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:07,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:07,959 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:08,752 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:05:08,936 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:09,120 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:09,322 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:09,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:09,536 INFO L93 Difference]: Finished difference Result 24306 states and 64449 transitions. [2021-06-05 20:05:09,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:09,536 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:09,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:09,560 INFO L225 Difference]: With dead ends: 24306 [2021-06-05 20:05:09,560 INFO L226 Difference]: Without dead ends: 24306 [2021-06-05 20:05:09,560 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1355.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:09,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24306 states. [2021-06-05 20:05:09,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24306 to 8877. [2021-06-05 20:05:09,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:09,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-05 20:05:09,785 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-05 20:05:09,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:09,785 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-05 20:05:09,785 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:09,785 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-05 20:05:09,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:09,794 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:09,794 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] [2021-06-05 20:05:09,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-06-05 20:05:09,794 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 20:05:09,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:09,794 INFO L82 PathProgramCache]: Analyzing trace with hash 840102544, now seen corresponding path program 108 times [2021-06-05 20:05:09,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:09,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638782951] [2021-06-05 20:05:09,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:10,140 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 20:05:10,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:10,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638782951] [2021-06-05 20:05:10,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638782951] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:10,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:10,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:10,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260283489] [2021-06-05 20:05:10,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:10,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:10,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:10,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:10,141 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:10,908 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:05:11,082 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:11,273 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:05:11,466 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:05:11,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:11,636 INFO L93 Difference]: Finished difference Result 23716 states and 62527 transitions. [2021-06-05 20:05:11,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:11,636 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:11,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:11,661 INFO L225 Difference]: With dead ends: 23716 [2021-06-05 20:05:11,661 INFO L226 Difference]: Without dead ends: 23716 [2021-06-05 20:05:11,661 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1355.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:11,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23716 states. [2021-06-05 20:05:11,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23716 to 8829. [2021-06-05 20:05:11,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8829 states, 8827 states have (on average 2.6873229862920582) internal successors, (23721), 8828 states have internal predecessors, (23721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:11,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 23721 transitions. [2021-06-05 20:05:11,852 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 23721 transitions. Word has length 114 [2021-06-05 20:05:11,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:11,852 INFO L482 AbstractCegarLoop]: Abstraction has 8829 states and 23721 transitions. [2021-06-05 20:05:11,852 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:11,853 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 23721 transitions. [2021-06-05 20:05:11,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:11,861 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:11,861 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] [2021-06-05 20:05:11,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-06-05 20:05:11,861 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 20:05:11,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:11,861 INFO L82 PathProgramCache]: Analyzing trace with hash -363478320, now seen corresponding path program 109 times [2021-06-05 20:05:11,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:11,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153839624] [2021-06-05 20:05:11,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:12,229 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 20:05:12,229 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:12,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153839624] [2021-06-05 20:05:12,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153839624] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:12,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:12,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:12,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321819502] [2021-06-05 20:05:12,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:12,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:12,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:12,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:12,230 INFO L87 Difference]: Start difference. First operand 8829 states and 23721 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:12,997 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:05:13,147 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:05:13,346 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:13,546 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:13,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:13,699 INFO L93 Difference]: Finished difference Result 20256 states and 53666 transitions. [2021-06-05 20:05:13,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:13,700 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:13,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:13,720 INFO L225 Difference]: With dead ends: 20256 [2021-06-05 20:05:13,721 INFO L226 Difference]: Without dead ends: 20256 [2021-06-05 20:05:13,721 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1343.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:13,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20256 states. [2021-06-05 20:05:13,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20256 to 8797. [2021-06-05 20:05:13,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8797 states, 8795 states have (on average 2.68664013644116) internal successors, (23629), 8796 states have internal predecessors, (23629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:13,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8797 states to 8797 states and 23629 transitions. [2021-06-05 20:05:13,894 INFO L78 Accepts]: Start accepts. Automaton has 8797 states and 23629 transitions. Word has length 114 [2021-06-05 20:05:13,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:13,894 INFO L482 AbstractCegarLoop]: Abstraction has 8797 states and 23629 transitions. [2021-06-05 20:05:13,894 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:13,894 INFO L276 IsEmpty]: Start isEmpty. Operand 8797 states and 23629 transitions. [2021-06-05 20:05:13,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:13,903 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:13,903 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] [2021-06-05 20:05:13,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-06-05 20:05:13,903 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 20:05:13,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:13,903 INFO L82 PathProgramCache]: Analyzing trace with hash -390563314, now seen corresponding path program 110 times [2021-06-05 20:05:13,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:13,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228346205] [2021-06-05 20:05:13,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:14,257 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 20:05:14,257 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:14,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228346205] [2021-06-05 20:05:14,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228346205] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:14,257 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:14,257 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:14,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855471034] [2021-06-05 20:05:14,257 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:14,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:14,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:14,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:14,258 INFO L87 Difference]: Start difference. First operand 8797 states and 23629 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:14,933 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-06-05 20:05:15,078 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:05:15,235 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:05:15,433 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:15,636 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:15,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:15,803 INFO L93 Difference]: Finished difference Result 19485 states and 52090 transitions. [2021-06-05 20:05:15,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:15,804 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:15,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:15,824 INFO L225 Difference]: With dead ends: 19485 [2021-06-05 20:05:15,824 INFO L226 Difference]: Without dead ends: 19485 [2021-06-05 20:05:15,824 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1388.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:15,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19485 states. [2021-06-05 20:05:15,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19485 to 8861. [2021-06-05 20:05:15,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:15,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-06-05 20:05:15,994 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-06-05 20:05:15,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:15,995 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-06-05 20:05:15,995 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:15,995 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-06-05 20:05:16,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:16,004 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:16,004 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] [2021-06-05 20:05:16,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-06-05 20:05:16,004 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 20:05:16,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:16,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1522673422, now seen corresponding path program 111 times [2021-06-05 20:05:16,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:16,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164314279] [2021-06-05 20:05:16,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:16,361 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 20:05:16,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:16,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164314279] [2021-06-05 20:05:16,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164314279] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:16,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:16,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:16,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053413982] [2021-06-05 20:05:16,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:16,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:16,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:16,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:16,362 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:17,127 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:05:17,302 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:17,480 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:17,678 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:17,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:17,832 INFO L93 Difference]: Finished difference Result 19557 states and 52222 transitions. [2021-06-05 20:05:17,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:17,832 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:17,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:17,852 INFO L225 Difference]: With dead ends: 19557 [2021-06-05 20:05:17,852 INFO L226 Difference]: Without dead ends: 19557 [2021-06-05 20:05:17,852 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1361.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:17,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19557 states. [2021-06-05 20:05:17,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19557 to 8877. [2021-06-05 20:05:18,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:18,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-05 20:05:18,014 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-05 20:05:18,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:18,014 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-05 20:05:18,014 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:18,014 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-05 20:05:18,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:18,022 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:18,022 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] [2021-06-05 20:05:18,022 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-06-05 20:05:18,022 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 20:05:18,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:18,022 INFO L82 PathProgramCache]: Analyzing trace with hash 434200236, now seen corresponding path program 112 times [2021-06-05 20:05:18,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:18,022 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025070226] [2021-06-05 20:05:18,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:18,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:18,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:18,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025070226] [2021-06-05 20:05:18,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025070226] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:18,368 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:18,368 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:18,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538905289] [2021-06-05 20:05:18,368 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:18,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:18,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:18,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:18,368 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:19,128 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:05:19,300 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:19,489 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:05:19,682 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:05:19,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:19,828 INFO L93 Difference]: Finished difference Result 18967 states and 50300 transitions. [2021-06-05 20:05:19,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:19,828 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:19,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:19,847 INFO L225 Difference]: With dead ends: 18967 [2021-06-05 20:05:19,847 INFO L226 Difference]: Without dead ends: 18967 [2021-06-05 20:05:19,847 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1364.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:19,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18967 states. [2021-06-05 20:05:19,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18967 to 8829. [2021-06-05 20:05:19,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8829 states, 8827 states have (on average 2.6873229862920582) internal successors, (23721), 8828 states have internal predecessors, (23721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:20,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 23721 transitions. [2021-06-05 20:05:20,009 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 23721 transitions. Word has length 114 [2021-06-05 20:05:20,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:20,009 INFO L482 AbstractCegarLoop]: Abstraction has 8829 states and 23721 transitions. [2021-06-05 20:05:20,009 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:20,010 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 23721 transitions. [2021-06-05 20:05:20,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:20,017 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:20,018 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] [2021-06-05 20:05:20,018 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-06-05 20:05:20,018 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 20:05:20,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:20,018 INFO L82 PathProgramCache]: Analyzing trace with hash -769380628, now seen corresponding path program 113 times [2021-06-05 20:05:20,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:20,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691217031] [2021-06-05 20:05:20,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:20,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:20,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:20,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691217031] [2021-06-05 20:05:20,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691217031] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:20,536 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:20,536 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:20,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593088034] [2021-06-05 20:05:20,536 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:20,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:20,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:20,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:20,536 INFO L87 Difference]: Start difference. First operand 8829 states and 23721 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:21,324 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:05:21,475 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:05:21,676 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:21,880 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:22,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:22,034 INFO L93 Difference]: Finished difference Result 19037 states and 50610 transitions. [2021-06-05 20:05:22,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:22,034 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:22,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:22,053 INFO L225 Difference]: With dead ends: 19037 [2021-06-05 20:05:22,053 INFO L226 Difference]: Without dead ends: 19037 [2021-06-05 20:05:22,054 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1494.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:22,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19037 states. [2021-06-05 20:05:22,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19037 to 8813. [2021-06-05 20:05:22,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8813 states, 8811 states have (on average 2.6869821813642036) internal successors, (23675), 8812 states have internal predecessors, (23675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:22,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8813 states to 8813 states and 23675 transitions. [2021-06-05 20:05:22,224 INFO L78 Accepts]: Start accepts. Automaton has 8813 states and 23675 transitions. Word has length 114 [2021-06-05 20:05:22,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:22,224 INFO L482 AbstractCegarLoop]: Abstraction has 8813 states and 23675 transitions. [2021-06-05 20:05:22,224 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:22,228 INFO L276 IsEmpty]: Start isEmpty. Operand 8813 states and 23675 transitions. [2021-06-05 20:05:22,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:22,239 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:22,239 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] [2021-06-05 20:05:22,239 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-06-05 20:05:22,239 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 20:05:22,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:22,240 INFO L82 PathProgramCache]: Analyzing trace with hash -429136270, now seen corresponding path program 114 times [2021-06-05 20:05:22,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:22,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280815091] [2021-06-05 20:05:22,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:22,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:22,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:22,598 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280815091] [2021-06-05 20:05:22,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280815091] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:22,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:22,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:22,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202753027] [2021-06-05 20:05:22,599 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:22,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:22,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:22,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:22,599 INFO L87 Difference]: Start difference. First operand 8813 states and 23675 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:23,378 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:05:23,529 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:05:23,730 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:23,931 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:24,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:24,090 INFO L93 Difference]: Finished difference Result 15792 states and 42126 transitions. [2021-06-05 20:05:24,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:24,090 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:24,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:24,107 INFO L225 Difference]: With dead ends: 15792 [2021-06-05 20:05:24,107 INFO L226 Difference]: Without dead ends: 15792 [2021-06-05 20:05:24,107 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1348.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:24,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15792 states. [2021-06-05 20:05:24,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15792 to 8757. [2021-06-05 20:05:24,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8757 states, 8755 states have (on average 2.6854368932038835) internal successors, (23511), 8756 states have internal predecessors, (23511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:24,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8757 states to 8757 states and 23511 transitions. [2021-06-05 20:05:24,250 INFO L78 Accepts]: Start accepts. Automaton has 8757 states and 23511 transitions. Word has length 114 [2021-06-05 20:05:24,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:24,250 INFO L482 AbstractCegarLoop]: Abstraction has 8757 states and 23511 transitions. [2021-06-05 20:05:24,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:24,250 INFO L276 IsEmpty]: Start isEmpty. Operand 8757 states and 23511 transitions. [2021-06-05 20:05:24,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:24,258 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:24,258 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, 1] [2021-06-05 20:05:24,258 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-06-05 20:05:24,258 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 20:05:24,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:24,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1680536624, now seen corresponding path program 115 times [2021-06-05 20:05:24,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:24,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566600487] [2021-06-05 20:05:24,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:24,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:24,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:24,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566600487] [2021-06-05 20:05:24,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566600487] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:24,582 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:24,582 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:24,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950500669] [2021-06-05 20:05:24,582 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:24,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:24,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:24,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:24,583 INFO L87 Difference]: Start difference. First operand 8757 states and 23511 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:25,351 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:05:25,502 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:05:25,690 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:25,889 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:26,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:26,048 INFO L93 Difference]: Finished difference Result 20205 states and 53400 transitions. [2021-06-05 20:05:26,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:26,049 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:26,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:26,069 INFO L225 Difference]: With dead ends: 20205 [2021-06-05 20:05:26,069 INFO L226 Difference]: Without dead ends: 20205 [2021-06-05 20:05:26,069 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1333.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:26,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20205 states. [2021-06-05 20:05:26,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20205 to 8883. [2021-06-05 20:05:26,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:26,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-06-05 20:05:26,279 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-06-05 20:05:26,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:26,280 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-06-05 20:05:26,280 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:26,280 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-06-05 20:05:26,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:26,288 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:26,288 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] [2021-06-05 20:05:26,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-06-05 20:05:26,288 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 20:05:26,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:26,289 INFO L82 PathProgramCache]: Analyzing trace with hash -701193936, now seen corresponding path program 116 times [2021-06-05 20:05:26,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:26,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935663653] [2021-06-05 20:05:26,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:26,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:26,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:26,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935663653] [2021-06-05 20:05:26,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935663653] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:26,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:26,618 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:26,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447080263] [2021-06-05 20:05:26,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:26,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:26,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:26,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:26,619 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:27,399 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:05:27,574 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:27,747 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:27,947 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:28,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:28,116 INFO L93 Difference]: Finished difference Result 22733 states and 59949 transitions. [2021-06-05 20:05:28,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:28,116 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:28,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:28,139 INFO L225 Difference]: With dead ends: 22733 [2021-06-05 20:05:28,140 INFO L226 Difference]: Without dead ends: 22733 [2021-06-05 20:05:28,140 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1341.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:28,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22733 states. [2021-06-05 20:05:28,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22733 to 8899. [2021-06-05 20:05:28,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8899 states, 8897 states have (on average 2.688546701135214) internal successors, (23920), 8898 states have internal predecessors, (23920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:28,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8899 states to 8899 states and 23920 transitions. [2021-06-05 20:05:28,345 INFO L78 Accepts]: Start accepts. Automaton has 8899 states and 23920 transitions. Word has length 114 [2021-06-05 20:05:28,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:28,345 INFO L482 AbstractCegarLoop]: Abstraction has 8899 states and 23920 transitions. [2021-06-05 20:05:28,345 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:28,345 INFO L276 IsEmpty]: Start isEmpty. Operand 8899 states and 23920 transitions. [2021-06-05 20:05:28,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:28,354 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:28,354 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] [2021-06-05 20:05:28,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-06-05 20:05:28,354 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 20:05:28,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:28,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1789667122, now seen corresponding path program 117 times [2021-06-05 20:05:28,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:28,354 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271173556] [2021-06-05 20:05:28,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:28,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:28,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:28,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271173556] [2021-06-05 20:05:28,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271173556] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:28,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:28,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:28,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043097285] [2021-06-05 20:05:28,705 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:28,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:28,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:28,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:28,705 INFO L87 Difference]: Start difference. First operand 8899 states and 23920 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:29,487 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:05:29,662 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:29,849 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:05:30,047 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:05:30,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:30,211 INFO L93 Difference]: Finished difference Result 21073 states and 55349 transitions. [2021-06-05 20:05:30,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:30,212 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:30,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:30,233 INFO L225 Difference]: With dead ends: 21073 [2021-06-05 20:05:30,233 INFO L226 Difference]: Without dead ends: 21073 [2021-06-05 20:05:30,233 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1356.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:30,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21073 states. [2021-06-05 20:05:30,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21073 to 8851. [2021-06-05 20:05:30,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8851 states, 8849 states have (on average 2.6875353147248275) internal successors, (23782), 8850 states have internal predecessors, (23782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:30,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8851 states to 8851 states and 23782 transitions. [2021-06-05 20:05:30,434 INFO L78 Accepts]: Start accepts. Automaton has 8851 states and 23782 transitions. Word has length 114 [2021-06-05 20:05:30,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:30,435 INFO L482 AbstractCegarLoop]: Abstraction has 8851 states and 23782 transitions. [2021-06-05 20:05:30,435 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:30,435 INFO L276 IsEmpty]: Start isEmpty. Operand 8851 states and 23782 transitions. [2021-06-05 20:05:30,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:30,443 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:30,443 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] [2021-06-05 20:05:30,443 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-06-05 20:05:30,443 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 20:05:30,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:30,443 INFO L82 PathProgramCache]: Analyzing trace with hash -379447312, now seen corresponding path program 118 times [2021-06-05 20:05:30,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:30,443 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071295729] [2021-06-05 20:05:30,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:30,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:30,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:30,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071295729] [2021-06-05 20:05:30,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071295729] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:30,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:30,754 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:30,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015296677] [2021-06-05 20:05:30,754 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:30,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:30,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:30,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:30,755 INFO L87 Difference]: Start difference. First operand 8851 states and 23782 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:31,517 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:05:31,673 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:31,872 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:32,065 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:32,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:32,216 INFO L93 Difference]: Finished difference Result 20311 states and 53566 transitions. [2021-06-05 20:05:32,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:32,216 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:32,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:32,236 INFO L225 Difference]: With dead ends: 20311 [2021-06-05 20:05:32,237 INFO L226 Difference]: Without dead ends: 20311 [2021-06-05 20:05:32,237 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1337.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:32,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20311 states. [2021-06-05 20:05:32,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20311 to 8883. [2021-06-05 20:05:32,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:32,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-06-05 20:05:32,416 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-06-05 20:05:32,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:32,416 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-06-05 20:05:32,416 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:32,416 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-06-05 20:05:32,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:32,425 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:32,425 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] [2021-06-05 20:05:32,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-06-05 20:05:32,425 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 20:05:32,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:32,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1467920498, now seen corresponding path program 119 times [2021-06-05 20:05:32,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:32,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54198538] [2021-06-05 20:05:32,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:32,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:32,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:32,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54198538] [2021-06-05 20:05:32,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54198538] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:32,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:32,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:32,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642642119] [2021-06-05 20:05:32,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:32,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:32,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:32,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:32,738 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:33,369 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 20:05:33,531 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:05:33,688 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:33,874 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:05:34,065 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:05:34,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:34,227 INFO L93 Difference]: Finished difference Result 21124 states and 55370 transitions. [2021-06-05 20:05:34,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:34,228 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:34,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:34,250 INFO L225 Difference]: With dead ends: 21124 [2021-06-05 20:05:34,250 INFO L226 Difference]: Without dead ends: 21124 [2021-06-05 20:05:34,251 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1350.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:34,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21124 states. [2021-06-05 20:05:34,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21124 to 8867. [2021-06-05 20:05:34,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8867 states, 8865 states have (on average 2.687873660462493) internal successors, (23828), 8866 states have internal predecessors, (23828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:34,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8867 states to 8867 states and 23828 transitions. [2021-06-05 20:05:34,436 INFO L78 Accepts]: Start accepts. Automaton has 8867 states and 23828 transitions. Word has length 114 [2021-06-05 20:05:34,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:34,436 INFO L482 AbstractCegarLoop]: Abstraction has 8867 states and 23828 transitions. [2021-06-05 20:05:34,436 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:34,436 INFO L276 IsEmpty]: Start isEmpty. Operand 8867 states and 23828 transitions. [2021-06-05 20:05:34,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:34,445 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:34,445 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] [2021-06-05 20:05:34,445 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-06-05 20:05:34,445 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 20:05:34,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:34,445 INFO L82 PathProgramCache]: Analyzing trace with hash -670057038, now seen corresponding path program 120 times [2021-06-05 20:05:34,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:34,446 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589636693] [2021-06-05 20:05:34,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:34,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:34,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:34,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589636693] [2021-06-05 20:05:34,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589636693] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:34,758 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:34,758 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:34,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450991276] [2021-06-05 20:05:34,758 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:34,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:34,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:34,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:34,759 INFO L87 Difference]: Start difference. First operand 8867 states and 23828 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:35,545 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:05:35,707 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:35,893 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:05:36,092 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:05:36,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:36,262 INFO L93 Difference]: Finished difference Result 20450 states and 53783 transitions. [2021-06-05 20:05:36,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:36,262 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:36,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:36,283 INFO L225 Difference]: With dead ends: 20450 [2021-06-05 20:05:36,283 INFO L226 Difference]: Without dead ends: 20450 [2021-06-05 20:05:36,284 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1331.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:36,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20450 states. [2021-06-05 20:05:36,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20450 to 8883. [2021-06-05 20:05:36,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:36,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-06-05 20:05:36,462 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-06-05 20:05:36,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:36,462 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-06-05 20:05:36,462 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:36,462 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-06-05 20:05:36,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:36,471 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:36,471 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] [2021-06-05 20:05:36,471 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-06-05 20:05:36,471 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 20:05:36,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:36,471 INFO L82 PathProgramCache]: Analyzing trace with hash -918604018, now seen corresponding path program 121 times [2021-06-05 20:05:36,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:36,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353935756] [2021-06-05 20:05:36,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:36,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:36,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353935756] [2021-06-05 20:05:36,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353935756] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:36,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:36,794 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:36,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359931264] [2021-06-05 20:05:36,794 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:36,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:36,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:36,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:36,794 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:37,322 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-06-05 20:05:37,594 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:05:37,756 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:37,929 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:38,126 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:38,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:38,273 INFO L93 Difference]: Finished difference Result 17797 states and 47023 transitions. [2021-06-05 20:05:38,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:38,274 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:38,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:38,293 INFO L225 Difference]: With dead ends: 17797 [2021-06-05 20:05:38,293 INFO L226 Difference]: Without dead ends: 17797 [2021-06-05 20:05:38,294 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1361.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:38,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17797 states. [2021-06-05 20:05:38,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17797 to 8819. [2021-06-05 20:05:38,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8819 states, 8817 states have (on average 2.6868549393217647) internal successors, (23690), 8818 states have internal predecessors, (23690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:38,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8819 states to 8819 states and 23690 transitions. [2021-06-05 20:05:38,464 INFO L78 Accepts]: Start accepts. Automaton has 8819 states and 23690 transitions. Word has length 114 [2021-06-05 20:05:38,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:38,464 INFO L482 AbstractCegarLoop]: Abstraction has 8819 states and 23690 transitions. [2021-06-05 20:05:38,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:38,464 INFO L276 IsEmpty]: Start isEmpty. Operand 8819 states and 23690 transitions. [2021-06-05 20:05:38,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:38,473 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:38,473 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] [2021-06-05 20:05:38,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-06-05 20:05:38,473 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 20:05:38,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:38,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1585858386, now seen corresponding path program 122 times [2021-06-05 20:05:38,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:38,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685982084] [2021-06-05 20:05:38,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:38,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:38,811 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:38,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685982084] [2021-06-05 20:05:38,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685982084] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:38,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:38,812 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:38,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271994224] [2021-06-05 20:05:38,812 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:38,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:38,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:38,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:38,812 INFO L87 Difference]: Start difference. First operand 8819 states and 23690 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:39,588 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:05:39,739 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:05:39,930 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:40,127 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:40,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:40,287 INFO L93 Difference]: Finished difference Result 18933 states and 50315 transitions. [2021-06-05 20:05:40,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:40,288 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:40,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:40,308 INFO L225 Difference]: With dead ends: 18933 [2021-06-05 20:05:40,308 INFO L226 Difference]: Without dead ends: 18933 [2021-06-05 20:05:40,308 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1342.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:40,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18933 states. [2021-06-05 20:05:40,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18933 to 8867. [2021-06-05 20:05:40,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8867 states, 8865 states have (on average 2.687873660462493) internal successors, (23828), 8866 states have internal predecessors, (23828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:40,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8867 states to 8867 states and 23828 transitions. [2021-06-05 20:05:40,483 INFO L78 Accepts]: Start accepts. Automaton has 8867 states and 23828 transitions. Word has length 114 [2021-06-05 20:05:40,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:40,483 INFO L482 AbstractCegarLoop]: Abstraction has 8867 states and 23828 transitions. [2021-06-05 20:05:40,483 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:40,483 INFO L276 IsEmpty]: Start isEmpty. Operand 8867 states and 23828 transitions. [2021-06-05 20:05:40,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:40,491 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:40,491 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] [2021-06-05 20:05:40,491 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-06-05 20:05:40,492 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 20:05:40,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:40,492 INFO L82 PathProgramCache]: Analyzing trace with hash -795872174, now seen corresponding path program 123 times [2021-06-05 20:05:40,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:40,492 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643875354] [2021-06-05 20:05:40,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:40,824 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 20:05:40,824 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:40,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643875354] [2021-06-05 20:05:40,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643875354] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:40,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:40,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:40,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408327326] [2021-06-05 20:05:40,825 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:40,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:40,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:40,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:40,825 INFO L87 Difference]: Start difference. First operand 8867 states and 23828 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:41,613 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:05:41,791 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:41,967 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:42,167 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:42,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:42,333 INFO L93 Difference]: Finished difference Result 19005 states and 50447 transitions. [2021-06-05 20:05:42,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:42,333 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:42,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:42,354 INFO L225 Difference]: With dead ends: 19005 [2021-06-05 20:05:42,354 INFO L226 Difference]: Without dead ends: 19005 [2021-06-05 20:05:42,354 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1347.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:42,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19005 states. [2021-06-05 20:05:42,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19005 to 8883. [2021-06-05 20:05:42,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:42,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-06-05 20:05:42,525 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-06-05 20:05:42,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:42,525 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-06-05 20:05:42,525 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:42,525 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-06-05 20:05:42,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:42,533 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:42,533 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] [2021-06-05 20:05:42,533 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-06-05 20:05:42,533 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 20:05:42,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:42,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1884345360, now seen corresponding path program 124 times [2021-06-05 20:05:42,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:42,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64332979] [2021-06-05 20:05:42,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:43,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:43,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:43,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64332979] [2021-06-05 20:05:43,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64332979] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:43,010 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:43,010 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:43,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661947924] [2021-06-05 20:05:43,010 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:43,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:43,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:43,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:43,010 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:43,765 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:05:43,936 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:44,124 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:05:44,317 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:05:44,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:44,465 INFO L93 Difference]: Finished difference Result 18415 states and 48525 transitions. [2021-06-05 20:05:44,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:44,465 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:44,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:44,484 INFO L225 Difference]: With dead ends: 18415 [2021-06-05 20:05:44,485 INFO L226 Difference]: Without dead ends: 18415 [2021-06-05 20:05:44,485 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1471.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:44,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18415 states. [2021-06-05 20:05:44,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18415 to 8835. [2021-06-05 20:05:44,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8835 states, 8833 states have (on average 2.687195743235594) internal successors, (23736), 8834 states have internal predecessors, (23736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:44,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8835 states to 8835 states and 23736 transitions. [2021-06-05 20:05:44,649 INFO L78 Accepts]: Start accepts. Automaton has 8835 states and 23736 transitions. Word has length 114 [2021-06-05 20:05:44,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:44,650 INFO L482 AbstractCegarLoop]: Abstraction has 8835 states and 23736 transitions. [2021-06-05 20:05:44,650 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:44,650 INFO L276 IsEmpty]: Start isEmpty. Operand 8835 states and 23736 transitions. [2021-06-05 20:05:44,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:44,658 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:44,658 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] [2021-06-05 20:05:44,658 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-06-05 20:05:44,659 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 20:05:44,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:44,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1207041072, now seen corresponding path program 125 times [2021-06-05 20:05:44,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:44,659 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302741391] [2021-06-05 20:05:44,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:44,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:44,994 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:44,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302741391] [2021-06-05 20:05:44,995 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302741391] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:44,995 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:44,995 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:44,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498465693] [2021-06-05 20:05:44,995 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:44,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:44,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:44,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:44,995 INFO L87 Difference]: Start difference. First operand 8835 states and 23736 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:45,774 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:05:45,921 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:05:46,116 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:46,314 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:46,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:46,465 INFO L93 Difference]: Finished difference Result 15303 states and 40516 transitions. [2021-06-05 20:05:46,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:46,465 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:46,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:46,481 INFO L225 Difference]: With dead ends: 15303 [2021-06-05 20:05:46,481 INFO L226 Difference]: Without dead ends: 15303 [2021-06-05 20:05:46,481 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1327.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:46,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15303 states. [2021-06-05 20:05:46,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15303 to 8803. [2021-06-05 20:05:46,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8803 states, 8801 states have (on average 2.6865128962617884) internal successors, (23644), 8802 states have internal predecessors, (23644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:46,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8803 states to 8803 states and 23644 transitions. [2021-06-05 20:05:46,626 INFO L78 Accepts]: Start accepts. Automaton has 8803 states and 23644 transitions. Word has length 114 [2021-06-05 20:05:46,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:46,626 INFO L482 AbstractCegarLoop]: Abstraction has 8803 states and 23644 transitions. [2021-06-05 20:05:46,627 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:46,627 INFO L276 IsEmpty]: Start isEmpty. Operand 8803 states and 23644 transitions. [2021-06-05 20:05:46,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:46,635 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:46,635 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] [2021-06-05 20:05:46,635 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-06-05 20:05:46,635 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 20:05:46,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:46,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1776410032, now seen corresponding path program 126 times [2021-06-05 20:05:46,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:46,636 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707051243] [2021-06-05 20:05:46,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:46,962 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 20:05:46,963 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:46,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707051243] [2021-06-05 20:05:46,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707051243] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:46,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:46,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:46,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076440473] [2021-06-05 20:05:46,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:46,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:46,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:46,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:46,963 INFO L87 Difference]: Start difference. First operand 8803 states and 23644 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:47,763 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:05:47,914 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:05:48,108 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:48,315 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:48,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:48,494 INFO L93 Difference]: Finished difference Result 19703 states and 51836 transitions. [2021-06-05 20:05:48,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:48,494 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:48,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:48,514 INFO L225 Difference]: With dead ends: 19703 [2021-06-05 20:05:48,514 INFO L226 Difference]: Without dead ends: 19703 [2021-06-05 20:05:48,515 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1334.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:48,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19703 states. [2021-06-05 20:05:48,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19703 to 8931. [2021-06-05 20:05:48,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:48,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-06-05 20:05:48,725 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-06-05 20:05:48,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:48,725 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-06-05 20:05:48,726 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:48,726 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-06-05 20:05:48,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:48,734 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:48,734 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] [2021-06-05 20:05:48,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-06-05 20:05:48,735 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 20:05:48,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:48,735 INFO L82 PathProgramCache]: Analyzing trace with hash 136826704, now seen corresponding path program 127 times [2021-06-05 20:05:48,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:48,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2325513] [2021-06-05 20:05:48,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:49,056 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 20:05:49,056 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:49,056 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2325513] [2021-06-05 20:05:49,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2325513] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:49,057 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:49,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:49,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341382000] [2021-06-05 20:05:49,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:49,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:49,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:49,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:49,057 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:49,850 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:05:50,027 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:50,204 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:50,409 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:50,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:50,581 INFO L93 Difference]: Finished difference Result 22231 states and 58385 transitions. [2021-06-05 20:05:50,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:50,581 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:50,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:50,604 INFO L225 Difference]: With dead ends: 22231 [2021-06-05 20:05:50,604 INFO L226 Difference]: Without dead ends: 22231 [2021-06-05 20:05:50,605 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1336.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:50,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22231 states. [2021-06-05 20:05:50,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22231 to 8947. [2021-06-05 20:05:50,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8947 states, 8945 states have (on average 2.6895472330911123) internal successors, (24058), 8946 states have internal predecessors, (24058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:50,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8947 states to 8947 states and 24058 transitions. [2021-06-05 20:05:50,798 INFO L78 Accepts]: Start accepts. Automaton has 8947 states and 24058 transitions. Word has length 114 [2021-06-05 20:05:50,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:50,798 INFO L482 AbstractCegarLoop]: Abstraction has 8947 states and 24058 transitions. [2021-06-05 20:05:50,798 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:50,798 INFO L276 IsEmpty]: Start isEmpty. Operand 8947 states and 24058 transitions. [2021-06-05 20:05:50,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:50,806 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:50,807 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] [2021-06-05 20:05:50,807 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-06-05 20:05:50,807 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 20:05:50,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:50,807 INFO L82 PathProgramCache]: Analyzing trace with hash -951646482, now seen corresponding path program 128 times [2021-06-05 20:05:50,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:50,807 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868059095] [2021-06-05 20:05:50,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:51,129 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 20:05:51,129 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:51,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868059095] [2021-06-05 20:05:51,129 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868059095] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:51,129 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:51,129 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:51,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617472358] [2021-06-05 20:05:51,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:51,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:51,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:51,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:51,130 INFO L87 Difference]: Start difference. First operand 8947 states and 24058 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:51,920 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:05:52,096 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:52,287 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:05:52,488 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:05:52,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:52,658 INFO L93 Difference]: Finished difference Result 20571 states and 53785 transitions. [2021-06-05 20:05:52,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:52,658 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:52,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:52,680 INFO L225 Difference]: With dead ends: 20571 [2021-06-05 20:05:52,680 INFO L226 Difference]: Without dead ends: 20571 [2021-06-05 20:05:52,681 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1343.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:52,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20571 states. [2021-06-05 20:05:52,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20571 to 8899. [2021-06-05 20:05:52,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8899 states, 8897 states have (on average 2.688546701135214) internal successors, (23920), 8898 states have internal predecessors, (23920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:52,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8899 states to 8899 states and 23920 transitions. [2021-06-05 20:05:52,874 INFO L78 Accepts]: Start accepts. Automaton has 8899 states and 23920 transitions. Word has length 114 [2021-06-05 20:05:52,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:52,874 INFO L482 AbstractCegarLoop]: Abstraction has 8899 states and 23920 transitions. [2021-06-05 20:05:52,874 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:52,874 INFO L276 IsEmpty]: Start isEmpty. Operand 8899 states and 23920 transitions. [2021-06-05 20:05:52,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:52,883 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:52,883 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] [2021-06-05 20:05:52,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-06-05 20:05:52,884 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 20:05:52,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:52,884 INFO L82 PathProgramCache]: Analyzing trace with hash 458573328, now seen corresponding path program 129 times [2021-06-05 20:05:52,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:52,884 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399667447] [2021-06-05 20:05:52,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:53,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:53,189 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:53,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399667447] [2021-06-05 20:05:53,189 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399667447] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:53,189 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:53,189 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:53,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081909764] [2021-06-05 20:05:53,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:53,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:53,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:53,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:53,190 INFO L87 Difference]: Start difference. First operand 8899 states and 23920 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:53,963 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:05:54,120 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:54,321 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:05:54,519 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:05:54,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:54,685 INFO L93 Difference]: Finished difference Result 23561 states and 61564 transitions. [2021-06-05 20:05:54,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:54,685 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:54,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:54,709 INFO L225 Difference]: With dead ends: 23561 [2021-06-05 20:05:54,709 INFO L226 Difference]: Without dead ends: 23561 [2021-06-05 20:05:54,709 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1344.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:54,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23561 states. [2021-06-05 20:05:54,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23561 to 8931. [2021-06-05 20:05:54,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:54,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-06-05 20:05:54,914 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-06-05 20:05:54,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:54,914 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-06-05 20:05:54,914 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:54,915 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-06-05 20:05:54,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:54,923 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:54,923 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] [2021-06-05 20:05:54,923 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-06-05 20:05:54,923 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 20:05:54,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:54,923 INFO L82 PathProgramCache]: Analyzing trace with hash -629899858, now seen corresponding path program 130 times [2021-06-05 20:05:54,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:54,923 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573363236] [2021-06-05 20:05:54,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:55,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:55,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:55,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573363236] [2021-06-05 20:05:55,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573363236] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:55,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:55,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:55,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213559768] [2021-06-05 20:05:55,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:55,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:55,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:55,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:55,245 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:56,022 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:05:56,179 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:56,368 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:05:56,563 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:05:56,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:56,731 INFO L93 Difference]: Finished difference Result 24374 states and 63368 transitions. [2021-06-05 20:05:56,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:56,731 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:56,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:56,756 INFO L225 Difference]: With dead ends: 24374 [2021-06-05 20:05:56,756 INFO L226 Difference]: Without dead ends: 24374 [2021-06-05 20:05:56,756 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1336.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:56,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24374 states. [2021-06-05 20:05:56,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24374 to 8915. [2021-06-05 20:05:56,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8915 states, 8913 states have (on average 2.688881409177606) internal successors, (23966), 8914 states have internal predecessors, (23966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:56,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8915 states to 8915 states and 23966 transitions. [2021-06-05 20:05:56,976 INFO L78 Accepts]: Start accepts. Automaton has 8915 states and 23966 transitions. Word has length 114 [2021-06-05 20:05:56,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:56,976 INFO L482 AbstractCegarLoop]: Abstraction has 8915 states and 23966 transitions. [2021-06-05 20:05:56,976 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:56,976 INFO L276 IsEmpty]: Start isEmpty. Operand 8915 states and 23966 transitions. [2021-06-05 20:05:56,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:56,985 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:56,985 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] [2021-06-05 20:05:56,985 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-06-05 20:05:56,985 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 20:05:56,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:56,985 INFO L82 PathProgramCache]: Analyzing trace with hash 167963602, now seen corresponding path program 131 times [2021-06-05 20:05:56,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:56,985 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204375206] [2021-06-05 20:05:56,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:57,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:57,294 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:57,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204375206] [2021-06-05 20:05:57,294 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204375206] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:57,294 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:57,294 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:57,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377704603] [2021-06-05 20:05:57,294 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:57,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:57,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:57,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:57,295 INFO L87 Difference]: Start difference. First operand 8915 states and 23966 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:58,068 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:05:58,229 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:05:58,413 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:05:58,608 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:05:58,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:05:58,776 INFO L93 Difference]: Finished difference Result 23700 states and 61781 transitions. [2021-06-05 20:05:58,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:05:58,776 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:05:58,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:05:58,801 INFO L225 Difference]: With dead ends: 23700 [2021-06-05 20:05:58,801 INFO L226 Difference]: Without dead ends: 23700 [2021-06-05 20:05:58,801 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1337.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:05:58,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23700 states. [2021-06-05 20:05:58,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23700 to 8931. [2021-06-05 20:05:58,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:59,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-06-05 20:05:59,003 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-06-05 20:05:59,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:05:59,003 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-06-05 20:05:59,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:05:59,003 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-06-05 20:05:59,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:05:59,011 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:05:59,011 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] [2021-06-05 20:05:59,011 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-06-05 20:05:59,011 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 20:05:59,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:05:59,012 INFO L82 PathProgramCache]: Analyzing trace with hash -80583378, now seen corresponding path program 132 times [2021-06-05 20:05:59,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:05:59,012 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732561242] [2021-06-05 20:05:59,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:05:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:05:59,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:05:59,315 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:05:59,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732561242] [2021-06-05 20:05:59,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732561242] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:05:59,315 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:05:59,315 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:05:59,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670389807] [2021-06-05 20:05:59,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:05:59,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:05:59,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:05:59,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:05:59,315 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:00,116 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:00,277 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:00,451 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:00,648 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:00,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:00,789 INFO L93 Difference]: Finished difference Result 20765 states and 54307 transitions. [2021-06-05 20:06:00,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:00,790 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:00,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:00,811 INFO L225 Difference]: With dead ends: 20765 [2021-06-05 20:06:00,811 INFO L226 Difference]: Without dead ends: 20765 [2021-06-05 20:06:00,811 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1347.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:00,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20765 states. [2021-06-05 20:06:00,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20765 to 8867. [2021-06-05 20:06:00,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8867 states, 8865 states have (on average 2.687873660462493) internal successors, (23828), 8866 states have internal predecessors, (23828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:01,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8867 states to 8867 states and 23828 transitions. [2021-06-05 20:06:01,001 INFO L78 Accepts]: Start accepts. Automaton has 8867 states and 23828 transitions. Word has length 114 [2021-06-05 20:06:01,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:01,001 INFO L482 AbstractCegarLoop]: Abstraction has 8867 states and 23828 transitions. [2021-06-05 20:06:01,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:01,001 INFO L276 IsEmpty]: Start isEmpty. Operand 8867 states and 23828 transitions. [2021-06-05 20:06:01,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:01,010 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:01,010 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] [2021-06-05 20:06:01,010 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-06-05 20:06:01,010 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 20:06:01,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:01,010 INFO L82 PathProgramCache]: Analyzing trace with hash 323371154, now seen corresponding path program 133 times [2021-06-05 20:06:01,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:01,011 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986160683] [2021-06-05 20:06:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:01,315 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 20:06:01,316 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:01,316 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986160683] [2021-06-05 20:06:01,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986160683] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:01,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:01,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:01,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807870230] [2021-06-05 20:06:01,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:01,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:01,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:01,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:01,316 INFO L87 Difference]: Start difference. First operand 8867 states and 23828 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:02,092 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:02,251 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:02,424 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:02,618 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:02,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:02,769 INFO L93 Difference]: Finished difference Result 19281 states and 50646 transitions. [2021-06-05 20:06:02,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:02,769 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:02,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:02,790 INFO L225 Difference]: With dead ends: 19281 [2021-06-05 20:06:02,791 INFO L226 Difference]: Without dead ends: 19281 [2021-06-05 20:06:02,791 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1321.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:02,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19281 states. [2021-06-05 20:06:02,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19281 to 8931. [2021-06-05 20:06:02,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:02,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-06-05 20:06:02,977 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-06-05 20:06:02,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:02,977 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-06-05 20:06:02,977 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:02,977 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-06-05 20:06:02,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:02,986 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:02,986 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] [2021-06-05 20:06:02,986 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-06-05 20:06:02,986 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 20:06:02,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:02,987 INFO L82 PathProgramCache]: Analyzing trace with hash -765102032, now seen corresponding path program 134 times [2021-06-05 20:06:02,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:02,987 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198814387] [2021-06-05 20:06:02,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:03,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:03,328 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:03,328 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198814387] [2021-06-05 20:06:03,328 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198814387] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:03,328 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:03,328 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:03,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525411092] [2021-06-05 20:06:03,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:03,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:03,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:03,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:03,329 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:03,972 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 20:06:04,135 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:04,298 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:04,491 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:06:04,687 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:06:04,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:04,857 INFO L93 Difference]: Finished difference Result 20094 states and 52450 transitions. [2021-06-05 20:06:04,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:04,858 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:04,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:04,879 INFO L225 Difference]: With dead ends: 20094 [2021-06-05 20:06:04,879 INFO L226 Difference]: Without dead ends: 20094 [2021-06-05 20:06:04,879 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1353.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:04,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20094 states. [2021-06-05 20:06:05,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20094 to 8915. [2021-06-05 20:06:05,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8915 states, 8913 states have (on average 2.688881409177606) internal successors, (23966), 8914 states have internal predecessors, (23966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:05,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8915 states to 8915 states and 23966 transitions. [2021-06-05 20:06:05,063 INFO L78 Accepts]: Start accepts. Automaton has 8915 states and 23966 transitions. Word has length 114 [2021-06-05 20:06:05,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:05,063 INFO L482 AbstractCegarLoop]: Abstraction has 8915 states and 23966 transitions. [2021-06-05 20:06:05,063 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:05,063 INFO L276 IsEmpty]: Start isEmpty. Operand 8915 states and 23966 transitions. [2021-06-05 20:06:05,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:05,071 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:05,071 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] [2021-06-05 20:06:05,072 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-06-05 20:06:05,072 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 20:06:05,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:05,072 INFO L82 PathProgramCache]: Analyzing trace with hash 32761428, now seen corresponding path program 135 times [2021-06-05 20:06:05,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:05,072 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599118215] [2021-06-05 20:06:05,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:05,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:05,456 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:05,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599118215] [2021-06-05 20:06:05,456 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599118215] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:05,456 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:05,456 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:05,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055176356] [2021-06-05 20:06:05,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:05,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:05,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:05,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:05,456 INFO L87 Difference]: Start difference. First operand 8915 states and 23966 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:06,245 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:06,408 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:06,595 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:06:06,792 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:06:06,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:06,975 INFO L93 Difference]: Finished difference Result 23207 states and 60400 transitions. [2021-06-05 20:06:06,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:06,976 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:06,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:07,000 INFO L225 Difference]: With dead ends: 23207 [2021-06-05 20:06:07,000 INFO L226 Difference]: Without dead ends: 23207 [2021-06-05 20:06:07,000 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1332.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:07,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23207 states. [2021-06-05 20:06:07,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23207 to 8931. [2021-06-05 20:06:07,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:07,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-06-05 20:06:07,204 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-06-05 20:06:07,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:07,204 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-06-05 20:06:07,204 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:07,204 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-06-05 20:06:07,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:07,213 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:07,213 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] [2021-06-05 20:06:07,213 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-06-05 20:06:07,213 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 20:06:07,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:07,214 INFO L82 PathProgramCache]: Analyzing trace with hash -215785552, now seen corresponding path program 136 times [2021-06-05 20:06:07,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:07,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107316932] [2021-06-05 20:06:07,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:07,517 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 20:06:07,517 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:07,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107316932] [2021-06-05 20:06:07,518 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107316932] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:07,518 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:07,518 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:07,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278131844] [2021-06-05 20:06:07,518 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:07,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:07,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:07,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:07,518 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:08,291 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:08,453 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:08,628 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:08,826 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:08,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:08,967 INFO L93 Difference]: Finished difference Result 20272 states and 52926 transitions. [2021-06-05 20:06:08,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:08,967 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:08,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:08,989 INFO L225 Difference]: With dead ends: 20272 [2021-06-05 20:06:08,989 INFO L226 Difference]: Without dead ends: 20272 [2021-06-05 20:06:08,989 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1328.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:09,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20272 states. [2021-06-05 20:06:09,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20272 to 8899. [2021-06-05 20:06:09,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8899 states, 8897 states have (on average 2.688546701135214) internal successors, (23920), 8898 states have internal predecessors, (23920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:09,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8899 states to 8899 states and 23920 transitions. [2021-06-05 20:06:09,177 INFO L78 Accepts]: Start accepts. Automaton has 8899 states and 23920 transitions. Word has length 114 [2021-06-05 20:06:09,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:09,178 INFO L482 AbstractCegarLoop]: Abstraction has 8899 states and 23920 transitions. [2021-06-05 20:06:09,178 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:09,178 INFO L276 IsEmpty]: Start isEmpty. Operand 8899 states and 23920 transitions. [2021-06-05 20:06:09,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:09,186 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:09,186 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] [2021-06-05 20:06:09,186 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-06-05 20:06:09,186 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 20:06:09,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:09,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1236055858, now seen corresponding path program 137 times [2021-06-05 20:06:09,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:09,187 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589710871] [2021-06-05 20:06:09,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:09,589 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 20:06:09,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:09,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589710871] [2021-06-05 20:06:09,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589710871] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:09,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:09,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:09,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413216907] [2021-06-05 20:06:09,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:09,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:09,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:09,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:09,590 INFO L87 Difference]: Start difference. First operand 8899 states and 23920 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:10,376 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:06:10,550 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:10,741 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:06:10,943 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:06:11,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:11,142 INFO L93 Difference]: Finished difference Result 19404 states and 50817 transitions. [2021-06-05 20:06:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:11,142 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:11,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:11,163 INFO L225 Difference]: With dead ends: 19404 [2021-06-05 20:06:11,163 INFO L226 Difference]: Without dead ends: 19404 [2021-06-05 20:06:11,163 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1416.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:11,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19404 states. [2021-06-05 20:06:11,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19404 to 8947. [2021-06-05 20:06:11,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8947 states, 8945 states have (on average 2.6895472330911123) internal successors, (24058), 8946 states have internal predecessors, (24058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:11,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8947 states to 8947 states and 24058 transitions. [2021-06-05 20:06:11,332 INFO L78 Accepts]: Start accepts. Automaton has 8947 states and 24058 transitions. Word has length 114 [2021-06-05 20:06:11,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:11,332 INFO L482 AbstractCegarLoop]: Abstraction has 8947 states and 24058 transitions. [2021-06-05 20:06:11,332 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:11,333 INFO L276 IsEmpty]: Start isEmpty. Operand 8947 states and 24058 transitions. [2021-06-05 20:06:11,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:11,341 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:11,341 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] [2021-06-05 20:06:11,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-06-05 20:06:11,341 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 20:06:11,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:11,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1484602838, now seen corresponding path program 138 times [2021-06-05 20:06:11,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:11,341 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748579302] [2021-06-05 20:06:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:11,656 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 20:06:11,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:11,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748579302] [2021-06-05 20:06:11,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748579302] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:11,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:11,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:11,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314573185] [2021-06-05 20:06:11,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:11,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:11,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:11,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:11,657 INFO L87 Difference]: Start difference. First operand 8947 states and 24058 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:12,414 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:06:12,584 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:12,758 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:12,956 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:13,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:13,096 INFO L93 Difference]: Finished difference Result 19244 states and 50415 transitions. [2021-06-05 20:06:13,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:13,097 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:13,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:13,116 INFO L225 Difference]: With dead ends: 19244 [2021-06-05 20:06:13,116 INFO L226 Difference]: Without dead ends: 19244 [2021-06-05 20:06:13,116 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1327.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:13,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19244 states. [2021-06-05 20:06:13,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19244 to 8931. [2021-06-05 20:06:13,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:13,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-06-05 20:06:13,278 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-06-05 20:06:13,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:13,279 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-06-05 20:06:13,279 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:13,279 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-06-05 20:06:13,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:13,287 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:13,287 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] [2021-06-05 20:06:13,287 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-06-05 20:06:13,287 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 20:06:13,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:13,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1653547154, now seen corresponding path program 139 times [2021-06-05 20:06:13,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:13,287 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467845140] [2021-06-05 20:06:13,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:13,610 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 20:06:13,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:13,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467845140] [2021-06-05 20:06:13,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467845140] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:13,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:13,611 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:13,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250505419] [2021-06-05 20:06:13,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:13,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:13,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:13,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:13,612 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:14,376 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:06:14,523 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:06:14,711 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:14,908 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:15,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:15,041 INFO L93 Difference]: Finished difference Result 16395 states and 43155 transitions. [2021-06-05 20:06:15,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:15,042 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:15,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:15,059 INFO L225 Difference]: With dead ends: 16395 [2021-06-05 20:06:15,059 INFO L226 Difference]: Without dead ends: 16395 [2021-06-05 20:06:15,060 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1321.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:15,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16395 states. [2021-06-05 20:06:15,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16395 to 8771. [2021-06-05 20:06:15,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8771 states, 8769 states have (on average 2.685825065571901) internal successors, (23552), 8770 states have internal predecessors, (23552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:15,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8771 states to 8771 states and 23552 transitions. [2021-06-05 20:06:15,218 INFO L78 Accepts]: Start accepts. Automaton has 8771 states and 23552 transitions. Word has length 114 [2021-06-05 20:06:15,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:15,218 INFO L482 AbstractCegarLoop]: Abstraction has 8771 states and 23552 transitions. [2021-06-05 20:06:15,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:15,218 INFO L276 IsEmpty]: Start isEmpty. Operand 8771 states and 23552 transitions. [2021-06-05 20:06:15,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:15,226 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:15,227 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] [2021-06-05 20:06:15,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-06-05 20:06:15,227 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 20:06:15,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:15,227 INFO L82 PathProgramCache]: Analyzing trace with hash -479350738, now seen corresponding path program 140 times [2021-06-05 20:06:15,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:15,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863817323] [2021-06-05 20:06:15,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:15,549 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 20:06:15,549 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:15,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863817323] [2021-06-05 20:06:15,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863817323] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:15,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:15,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:15,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906519263] [2021-06-05 20:06:15,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:15,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:15,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:15,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:15,550 INFO L87 Difference]: Start difference. First operand 8771 states and 23552 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:16,337 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:06:16,487 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:06:16,701 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:16,898 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:17,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:17,046 INFO L93 Difference]: Finished difference Result 14272 states and 37721 transitions. [2021-06-05 20:06:17,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:17,046 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:17,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:17,060 INFO L225 Difference]: With dead ends: 14272 [2021-06-05 20:06:17,061 INFO L226 Difference]: Without dead ends: 14272 [2021-06-05 20:06:17,061 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1353.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:17,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14272 states. [2021-06-05 20:06:17,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14272 to 8927. [2021-06-05 20:06:17,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:17,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-06-05 20:06:17,206 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-06-05 20:06:17,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:17,206 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-06-05 20:06:17,206 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:17,206 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-06-05 20:06:17,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:17,215 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:17,215 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] [2021-06-05 20:06:17,215 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-06-05 20:06:17,215 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 20:06:17,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:17,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1433885998, now seen corresponding path program 141 times [2021-06-05 20:06:17,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:17,215 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495365176] [2021-06-05 20:06:17,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:17,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:17,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:17,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495365176] [2021-06-05 20:06:17,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495365176] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:17,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:17,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:17,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804788782] [2021-06-05 20:06:17,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:17,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:17,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:17,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:17,541 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:18,328 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:06:18,502 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:18,676 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:18,877 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:19,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:19,030 INFO L93 Difference]: Finished difference Result 16800 states and 44270 transitions. [2021-06-05 20:06:19,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:19,030 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:19,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:19,048 INFO L225 Difference]: With dead ends: 16800 [2021-06-05 20:06:19,048 INFO L226 Difference]: Without dead ends: 16800 [2021-06-05 20:06:19,048 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1342.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:19,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16800 states. [2021-06-05 20:06:19,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16800 to 8943. [2021-06-05 20:06:19,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8943 states, 8941 states have (on average 2.689632032211162) internal successors, (24048), 8942 states have internal predecessors, (24048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:19,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8943 states to 8943 states and 24048 transitions. [2021-06-05 20:06:19,218 INFO L78 Accepts]: Start accepts. Automaton has 8943 states and 24048 transitions. Word has length 114 [2021-06-05 20:06:19,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:19,218 INFO L482 AbstractCegarLoop]: Abstraction has 8943 states and 24048 transitions. [2021-06-05 20:06:19,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:19,218 INFO L276 IsEmpty]: Start isEmpty. Operand 8943 states and 24048 transitions. [2021-06-05 20:06:19,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:19,227 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:19,227 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] [2021-06-05 20:06:19,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-06-05 20:06:19,227 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 20:06:19,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:19,227 INFO L82 PathProgramCache]: Analyzing trace with hash 345412812, now seen corresponding path program 142 times [2021-06-05 20:06:19,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:19,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325783376] [2021-06-05 20:06:19,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:19,550 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 20:06:19,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:19,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325783376] [2021-06-05 20:06:19,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325783376] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:19,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:19,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:19,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488748493] [2021-06-05 20:06:19,551 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:19,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:19,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:19,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:19,551 INFO L87 Difference]: Start difference. First operand 8943 states and 24048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:20,312 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:06:20,479 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:20,663 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:06:20,856 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:06:20,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:20,990 INFO L93 Difference]: Finished difference Result 15140 states and 39670 transitions. [2021-06-05 20:06:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:20,990 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:20,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:21,005 INFO L225 Difference]: With dead ends: 15140 [2021-06-05 20:06:21,006 INFO L226 Difference]: Without dead ends: 15140 [2021-06-05 20:06:21,006 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1344.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:21,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15140 states. [2021-06-05 20:06:21,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15140 to 8895. [2021-06-05 20:06:21,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8895 states, 8893 states have (on average 2.6886315079275835) internal successors, (23910), 8894 states have internal predecessors, (23910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:21,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8895 states to 8895 states and 23910 transitions. [2021-06-05 20:06:21,153 INFO L78 Accepts]: Start accepts. Automaton has 8895 states and 23910 transitions. Word has length 114 [2021-06-05 20:06:21,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:21,154 INFO L482 AbstractCegarLoop]: Abstraction has 8895 states and 23910 transitions. [2021-06-05 20:06:21,154 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:21,154 INFO L276 IsEmpty]: Start isEmpty. Operand 8895 states and 23910 transitions. [2021-06-05 20:06:21,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:21,162 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:21,162 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] [2021-06-05 20:06:21,162 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-06-05 20:06:21,162 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 20:06:21,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:21,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1755632622, now seen corresponding path program 143 times [2021-06-05 20:06:21,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:21,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395386169] [2021-06-05 20:06:21,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:21,465 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 20:06:21,465 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:21,465 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395386169] [2021-06-05 20:06:21,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395386169] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:21,465 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:21,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:21,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312364426] [2021-06-05 20:06:21,466 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:21,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:21,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:21,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:21,466 INFO L87 Difference]: Start difference. First operand 8895 states and 23910 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:22,264 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:22,418 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:22,590 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:22,783 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:22,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:22,930 INFO L93 Difference]: Finished difference Result 18130 states and 47449 transitions. [2021-06-05 20:06:22,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:22,930 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:22,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:22,948 INFO L225 Difference]: With dead ends: 18130 [2021-06-05 20:06:22,948 INFO L226 Difference]: Without dead ends: 18130 [2021-06-05 20:06:22,949 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1343.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:22,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18130 states. [2021-06-05 20:06:23,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18130 to 8927. [2021-06-05 20:06:23,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:23,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-06-05 20:06:23,117 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-06-05 20:06:23,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:23,118 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-06-05 20:06:23,118 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:23,118 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-06-05 20:06:23,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:23,126 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:23,126 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] [2021-06-05 20:06:23,126 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-06-05 20:06:23,126 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 20:06:23,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:23,126 INFO L82 PathProgramCache]: Analyzing trace with hash 667159436, now seen corresponding path program 144 times [2021-06-05 20:06:23,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:23,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778100957] [2021-06-05 20:06:23,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:23,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:23,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778100957] [2021-06-05 20:06:23,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778100957] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:23,431 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:23,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:23,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691301101] [2021-06-05 20:06:23,431 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:23,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:23,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:23,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:23,431 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:24,218 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:24,373 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:24,562 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:06:24,755 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:06:24,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:24,924 INFO L93 Difference]: Finished difference Result 18943 states and 49253 transitions. [2021-06-05 20:06:24,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:24,925 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:24,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:24,945 INFO L225 Difference]: With dead ends: 18943 [2021-06-05 20:06:24,945 INFO L226 Difference]: Without dead ends: 18943 [2021-06-05 20:06:24,945 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1323.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:24,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18943 states. [2021-06-05 20:06:25,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18943 to 8911. [2021-06-05 20:06:25,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8911 states, 8909 states have (on average 2.6889662139409585) internal successors, (23956), 8910 states have internal predecessors, (23956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:25,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8911 states to 8911 states and 23956 transitions. [2021-06-05 20:06:25,120 INFO L78 Accepts]: Start accepts. Automaton has 8911 states and 23956 transitions. Word has length 114 [2021-06-05 20:06:25,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:25,120 INFO L482 AbstractCegarLoop]: Abstraction has 8911 states and 23956 transitions. [2021-06-05 20:06:25,120 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:25,120 INFO L276 IsEmpty]: Start isEmpty. Operand 8911 states and 23956 transitions. [2021-06-05 20:06:25,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:25,128 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:25,128 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] [2021-06-05 20:06:25,129 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-06-05 20:06:25,129 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 20:06:25,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:25,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1465022896, now seen corresponding path program 145 times [2021-06-05 20:06:25,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:25,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537063615] [2021-06-05 20:06:25,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:25,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:25,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:25,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537063615] [2021-06-05 20:06:25,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537063615] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:25,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:25,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:25,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936502889] [2021-06-05 20:06:25,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:25,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:25,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:25,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:25,451 INFO L87 Difference]: Start difference. First operand 8911 states and 23956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:26,242 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:26,401 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:26,587 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:06:26,786 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:06:26,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:26,952 INFO L93 Difference]: Finished difference Result 18269 states and 47666 transitions. [2021-06-05 20:06:26,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:26,952 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:26,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:26,971 INFO L225 Difference]: With dead ends: 18269 [2021-06-05 20:06:26,971 INFO L226 Difference]: Without dead ends: 18269 [2021-06-05 20:06:26,971 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1341.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:27,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18269 states. [2021-06-05 20:06:27,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18269 to 8927. [2021-06-05 20:06:27,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:27,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-06-05 20:06:27,143 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-06-05 20:06:27,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:27,143 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-06-05 20:06:27,143 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:27,143 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-06-05 20:06:27,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:27,152 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:27,152 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] [2021-06-05 20:06:27,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-06-05 20:06:27,152 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 20:06:27,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:27,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1216475916, now seen corresponding path program 146 times [2021-06-05 20:06:27,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:27,152 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845718918] [2021-06-05 20:06:27,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:27,468 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 20:06:27,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:27,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845718918] [2021-06-05 20:06:27,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845718918] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:27,468 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:27,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:27,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261521081] [2021-06-05 20:06:27,469 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:27,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:27,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:27,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:27,469 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:28,265 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:28,422 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:28,595 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:28,790 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:28,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:28,913 INFO L93 Difference]: Finished difference Result 15334 states and 40192 transitions. [2021-06-05 20:06:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:28,914 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:28,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:28,929 INFO L225 Difference]: With dead ends: 15334 [2021-06-05 20:06:28,930 INFO L226 Difference]: Without dead ends: 15334 [2021-06-05 20:06:28,930 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1346.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:28,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15334 states. [2021-06-05 20:06:29,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15334 to 8863. [2021-06-05 20:06:29,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8863 states, 8861 states have (on average 2.6879584696986796) internal successors, (23818), 8862 states have internal predecessors, (23818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:29,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8863 states to 8863 states and 23818 transitions. [2021-06-05 20:06:29,078 INFO L78 Accepts]: Start accepts. Automaton has 8863 states and 23818 transitions. Word has length 114 [2021-06-05 20:06:29,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:29,078 INFO L482 AbstractCegarLoop]: Abstraction has 8863 states and 23818 transitions. [2021-06-05 20:06:29,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:29,078 INFO L276 IsEmpty]: Start isEmpty. Operand 8863 states and 23818 transitions. [2021-06-05 20:06:29,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:29,086 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:29,086 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] [2021-06-05 20:06:29,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-06-05 20:06:29,086 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 20:06:29,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:29,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1620430448, now seen corresponding path program 147 times [2021-06-05 20:06:29,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:29,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170851280] [2021-06-05 20:06:29,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:29,386 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 20:06:29,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:29,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170851280] [2021-06-05 20:06:29,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170851280] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:29,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:29,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:29,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062187912] [2021-06-05 20:06:29,387 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:29,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:29,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:29,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:29,387 INFO L87 Difference]: Start difference. First operand 8863 states and 23818 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:30,158 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:30,314 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:30,489 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:30,686 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:30,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:30,838 INFO L93 Difference]: Finished difference Result 18688 states and 48979 transitions. [2021-06-05 20:06:30,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:30,838 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:30,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:30,858 INFO L225 Difference]: With dead ends: 18688 [2021-06-05 20:06:30,858 INFO L226 Difference]: Without dead ends: 18688 [2021-06-05 20:06:30,858 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1319.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:30,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18688 states. [2021-06-05 20:06:31,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18688 to 8927. [2021-06-05 20:06:31,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:31,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-06-05 20:06:31,039 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-06-05 20:06:31,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:31,039 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-06-05 20:06:31,039 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:31,039 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-06-05 20:06:31,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:31,047 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:31,047 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] [2021-06-05 20:06:31,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-06-05 20:06:31,047 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 20:06:31,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:31,048 INFO L82 PathProgramCache]: Analyzing trace with hash 531957262, now seen corresponding path program 148 times [2021-06-05 20:06:31,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:31,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423050155] [2021-06-05 20:06:31,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:31,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:31,356 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:31,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423050155] [2021-06-05 20:06:31,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423050155] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:31,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:31,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:31,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635680944] [2021-06-05 20:06:31,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:31,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:31,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:31,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:31,357 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:32,150 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:32,308 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:32,501 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:06:32,695 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:06:32,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:32,866 INFO L93 Difference]: Finished difference Result 19501 states and 50783 transitions. [2021-06-05 20:06:32,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:32,866 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:32,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:32,886 INFO L225 Difference]: With dead ends: 19501 [2021-06-05 20:06:32,887 INFO L226 Difference]: Without dead ends: 19501 [2021-06-05 20:06:32,887 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1335.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:32,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19501 states. [2021-06-05 20:06:33,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19501 to 8911. [2021-06-05 20:06:33,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8911 states, 8909 states have (on average 2.6889662139409585) internal successors, (23956), 8910 states have internal predecessors, (23956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:33,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8911 states to 8911 states and 23956 transitions. [2021-06-05 20:06:33,076 INFO L78 Accepts]: Start accepts. Automaton has 8911 states and 23956 transitions. Word has length 114 [2021-06-05 20:06:33,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:33,076 INFO L482 AbstractCegarLoop]: Abstraction has 8911 states and 23956 transitions. [2021-06-05 20:06:33,077 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:33,077 INFO L276 IsEmpty]: Start isEmpty. Operand 8911 states and 23956 transitions. [2021-06-05 20:06:33,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:33,086 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:33,086 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] [2021-06-05 20:06:33,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-06-05 20:06:33,086 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 20:06:33,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:33,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1329820722, now seen corresponding path program 149 times [2021-06-05 20:06:33,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:33,086 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780871839] [2021-06-05 20:06:33,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:33,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:33,441 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:33,441 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780871839] [2021-06-05 20:06:33,441 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780871839] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:33,441 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:33,441 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:33,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744490332] [2021-06-05 20:06:33,441 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:33,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:33,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:33,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:33,442 INFO L87 Difference]: Start difference. First operand 8911 states and 23956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:34,259 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:34,419 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:34,607 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:06:34,810 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:06:35,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:35,012 INFO L93 Difference]: Finished difference Result 22614 states and 58733 transitions. [2021-06-05 20:06:35,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:35,013 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:35,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:35,035 INFO L225 Difference]: With dead ends: 22614 [2021-06-05 20:06:35,036 INFO L226 Difference]: Without dead ends: 22614 [2021-06-05 20:06:35,036 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1355.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:35,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22614 states. [2021-06-05 20:06:35,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22614 to 8927. [2021-06-05 20:06:35,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:35,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-06-05 20:06:35,233 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-06-05 20:06:35,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:35,233 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-06-05 20:06:35,233 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:35,233 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-06-05 20:06:35,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:35,242 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:35,242 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] [2021-06-05 20:06:35,242 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-06-05 20:06:35,242 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 20:06:35,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:35,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1081273742, now seen corresponding path program 150 times [2021-06-05 20:06:35,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:35,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030122513] [2021-06-05 20:06:35,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:35,545 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 20:06:35,545 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:35,545 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030122513] [2021-06-05 20:06:35,545 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030122513] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:35,546 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:35,546 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:35,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548851439] [2021-06-05 20:06:35,546 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:35,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:35,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:35,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:35,546 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:36,339 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:36,500 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:36,677 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:36,875 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:37,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:37,031 INFO L93 Difference]: Finished difference Result 19679 states and 51259 transitions. [2021-06-05 20:06:37,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:37,031 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:37,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:37,052 INFO L225 Difference]: With dead ends: 19679 [2021-06-05 20:06:37,052 INFO L226 Difference]: Without dead ends: 19679 [2021-06-05 20:06:37,053 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1323.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:37,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19679 states. [2021-06-05 20:06:37,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19679 to 8895. [2021-06-05 20:06:37,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8895 states, 8893 states have (on average 2.6886315079275835) internal successors, (23910), 8894 states have internal predecessors, (23910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:37,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8895 states to 8895 states and 23910 transitions. [2021-06-05 20:06:37,241 INFO L78 Accepts]: Start accepts. Automaton has 8895 states and 23910 transitions. Word has length 114 [2021-06-05 20:06:37,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:37,241 INFO L482 AbstractCegarLoop]: Abstraction has 8895 states and 23910 transitions. [2021-06-05 20:06:37,241 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:37,241 INFO L276 IsEmpty]: Start isEmpty. Operand 8895 states and 23910 transitions. [2021-06-05 20:06:37,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:37,250 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:37,250 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] [2021-06-05 20:06:37,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-06-05 20:06:37,250 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:06:37,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:37,250 INFO L82 PathProgramCache]: Analyzing trace with hash 61003436, now seen corresponding path program 151 times [2021-06-05 20:06:37,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:37,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192162296] [2021-06-05 20:06:37,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:37,570 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 20:06:37,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:37,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192162296] [2021-06-05 20:06:37,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192162296] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:37,570 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:37,570 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:37,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134640917] [2021-06-05 20:06:37,570 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:37,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:37,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:37,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:37,571 INFO L87 Difference]: Start difference. First operand 8895 states and 23910 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:38,333 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:06:38,501 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:38,689 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:06:38,886 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:06:39,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:39,064 INFO L93 Difference]: Finished difference Result 18811 states and 49150 transitions. [2021-06-05 20:06:39,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:39,065 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:39,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:39,084 INFO L225 Difference]: With dead ends: 18811 [2021-06-05 20:06:39,084 INFO L226 Difference]: Without dead ends: 18811 [2021-06-05 20:06:39,085 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1352.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:39,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18811 states. [2021-06-05 20:06:39,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18811 to 8943. [2021-06-05 20:06:39,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8943 states, 8941 states have (on average 2.689632032211162) internal successors, (24048), 8942 states have internal predecessors, (24048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:39,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8943 states to 8943 states and 24048 transitions. [2021-06-05 20:06:39,259 INFO L78 Accepts]: Start accepts. Automaton has 8943 states and 24048 transitions. Word has length 114 [2021-06-05 20:06:39,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:39,260 INFO L482 AbstractCegarLoop]: Abstraction has 8943 states and 24048 transitions. [2021-06-05 20:06:39,260 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:39,260 INFO L276 IsEmpty]: Start isEmpty. Operand 8943 states and 24048 transitions. [2021-06-05 20:06:39,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:39,268 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:39,268 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] [2021-06-05 20:06:39,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-06-05 20:06:39,268 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 20:06:39,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:39,268 INFO L82 PathProgramCache]: Analyzing trace with hash -187543544, now seen corresponding path program 152 times [2021-06-05 20:06:39,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:39,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645001455] [2021-06-05 20:06:39,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:39,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:39,580 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:39,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645001455] [2021-06-05 20:06:39,581 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645001455] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:39,581 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:39,581 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:39,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264159982] [2021-06-05 20:06:39,581 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:39,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:39,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:39,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:39,581 INFO L87 Difference]: Start difference. First operand 8943 states and 24048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:40,339 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:06:40,507 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:40,681 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:40,876 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:41,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:41,019 INFO L93 Difference]: Finished difference Result 18651 states and 48748 transitions. [2021-06-05 20:06:41,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:41,019 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:41,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:41,040 INFO L225 Difference]: With dead ends: 18651 [2021-06-05 20:06:41,040 INFO L226 Difference]: Without dead ends: 18651 [2021-06-05 20:06:41,040 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1322.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:41,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18651 states. [2021-06-05 20:06:41,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18651 to 8927. [2021-06-05 20:06:41,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:41,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-06-05 20:06:41,214 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-06-05 20:06:41,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:41,214 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-06-05 20:06:41,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:41,214 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-06-05 20:06:41,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:41,223 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:41,223 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] [2021-06-05 20:06:41,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-06-05 20:06:41,223 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 20:06:41,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:41,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1344360848, now seen corresponding path program 153 times [2021-06-05 20:06:41,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:41,223 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914197440] [2021-06-05 20:06:41,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:41,549 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 20:06:41,549 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:41,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914197440] [2021-06-05 20:06:41,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914197440] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:41,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:41,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:41,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033969961] [2021-06-05 20:06:41,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:41,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:41,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:41,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:41,550 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:42,334 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:06:42,486 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:06:42,676 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:42,879 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:43,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:43,019 INFO L93 Difference]: Finished difference Result 15802 states and 41488 transitions. [2021-06-05 20:06:43,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:43,019 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:43,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:43,036 INFO L225 Difference]: With dead ends: 15802 [2021-06-05 20:06:43,036 INFO L226 Difference]: Without dead ends: 15802 [2021-06-05 20:06:43,036 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1330.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:43,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15802 states. [2021-06-05 20:06:43,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15802 to 8799. [2021-06-05 20:06:43,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8799 states, 8797 states have (on average 2.6865977037626463) internal successors, (23634), 8798 states have internal predecessors, (23634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:43,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8799 states to 8799 states and 23634 transitions. [2021-06-05 20:06:43,191 INFO L78 Accepts]: Start accepts. Automaton has 8799 states and 23634 transitions. Word has length 114 [2021-06-05 20:06:43,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:43,192 INFO L482 AbstractCegarLoop]: Abstraction has 8799 states and 23634 transitions. [2021-06-05 20:06:43,192 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:43,192 INFO L276 IsEmpty]: Start isEmpty. Operand 8799 states and 23634 transitions. [2021-06-05 20:06:43,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:43,200 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:43,200 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] [2021-06-05 20:06:43,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-06-05 20:06:43,200 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 20:06:43,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:43,200 INFO L82 PathProgramCache]: Analyzing trace with hash -202875694, now seen corresponding path program 154 times [2021-06-05 20:06:43,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:43,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553615346] [2021-06-05 20:06:43,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:43,508 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 20:06:43,508 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:43,508 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553615346] [2021-06-05 20:06:43,508 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553615346] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:43,508 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:43,508 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:43,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385718280] [2021-06-05 20:06:43,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:43,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:43,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:43,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:43,509 INFO L87 Difference]: Start difference. First operand 8799 states and 23634 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:44,289 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:44,448 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:44,648 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:44,842 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:44,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:44,975 INFO L93 Difference]: Finished difference Result 13786 states and 36347 transitions. [2021-06-05 20:06:44,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:44,975 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:44,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:44,990 INFO L225 Difference]: With dead ends: 13786 [2021-06-05 20:06:44,990 INFO L226 Difference]: Without dead ends: 13786 [2021-06-05 20:06:44,991 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1334.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:45,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13786 states. [2021-06-05 20:06:45,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13786 to 8877. [2021-06-05 20:06:45,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:45,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-05 20:06:45,134 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-05 20:06:45,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:45,135 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-05 20:06:45,135 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:45,135 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-05 20:06:45,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:45,143 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:45,143 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] [2021-06-05 20:06:45,143 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-06-05 20:06:45,143 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 20:06:45,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:45,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1291348880, now seen corresponding path program 155 times [2021-06-05 20:06:45,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:45,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169415127] [2021-06-05 20:06:45,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:45,466 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 20:06:45,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:45,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169415127] [2021-06-05 20:06:45,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169415127] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:45,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:45,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:45,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976647542] [2021-06-05 20:06:45,466 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:45,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:45,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:45,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:45,467 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:46,257 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:46,416 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:46,607 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:06:46,802 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:06:46,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:46,954 INFO L93 Difference]: Finished difference Result 14599 states and 38151 transitions. [2021-06-05 20:06:46,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:46,954 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:46,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:46,970 INFO L225 Difference]: With dead ends: 14599 [2021-06-05 20:06:46,970 INFO L226 Difference]: Without dead ends: 14599 [2021-06-05 20:06:46,970 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1341.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:46,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14599 states. [2021-06-05 20:06:47,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14599 to 8861. [2021-06-05 20:06:47,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:47,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-06-05 20:06:47,125 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-06-05 20:06:47,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:47,125 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-06-05 20:06:47,125 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:47,125 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-06-05 20:06:47,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:47,133 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:47,133 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] [2021-06-05 20:06:47,133 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-06-05 20:06:47,133 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 20:06:47,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:47,134 INFO L82 PathProgramCache]: Analyzing trace with hash -493485420, now seen corresponding path program 156 times [2021-06-05 20:06:47,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:47,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146570229] [2021-06-05 20:06:47,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:47,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:47,451 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:47,451 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146570229] [2021-06-05 20:06:47,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146570229] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:47,451 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:47,451 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:47,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978958590] [2021-06-05 20:06:47,451 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:47,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:47,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:47,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:47,451 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:48,241 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:48,404 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:48,591 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:06:48,787 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:06:48,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:48,950 INFO L93 Difference]: Finished difference Result 17712 states and 46101 transitions. [2021-06-05 20:06:48,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:48,950 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:48,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:48,967 INFO L225 Difference]: With dead ends: 17712 [2021-06-05 20:06:48,967 INFO L226 Difference]: Without dead ends: 17712 [2021-06-05 20:06:48,968 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1343.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:48,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17712 states. [2021-06-05 20:06:49,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17712 to 8877. [2021-06-05 20:06:49,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:49,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-05 20:06:49,128 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-05 20:06:49,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:49,128 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-05 20:06:49,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:49,128 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-05 20:06:49,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:49,136 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:49,136 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] [2021-06-05 20:06:49,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-06-05 20:06:49,136 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 20:06:49,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:49,137 INFO L82 PathProgramCache]: Analyzing trace with hash -742032400, now seen corresponding path program 157 times [2021-06-05 20:06:49,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:49,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344556314] [2021-06-05 20:06:49,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:49,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:49,436 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:49,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344556314] [2021-06-05 20:06:49,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344556314] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:49,436 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:49,436 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:49,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053640422] [2021-06-05 20:06:49,437 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:49,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:49,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:49,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:49,437 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:50,225 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:06:50,382 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:50,552 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:50,745 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:50,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:50,864 INFO L93 Difference]: Finished difference Result 14777 states and 38627 transitions. [2021-06-05 20:06:50,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:50,865 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:50,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:50,880 INFO L225 Difference]: With dead ends: 14777 [2021-06-05 20:06:50,880 INFO L226 Difference]: Without dead ends: 14777 [2021-06-05 20:06:50,880 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1315.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:50,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14777 states. [2021-06-05 20:06:51,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14777 to 8845. [2021-06-05 20:06:51,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 8843 states have (on average 2.687662557955445) internal successors, (23767), 8844 states have internal predecessors, (23767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:51,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 23767 transitions. [2021-06-05 20:06:51,027 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 23767 transitions. Word has length 114 [2021-06-05 20:06:51,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:51,027 INFO L482 AbstractCegarLoop]: Abstraction has 8845 states and 23767 transitions. [2021-06-05 20:06:51,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:51,027 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 23767 transitions. [2021-06-05 20:06:51,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:51,035 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:51,036 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] [2021-06-05 20:06:51,036 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-06-05 20:06:51,036 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 20:06:51,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:51,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1762302706, now seen corresponding path program 158 times [2021-06-05 20:06:51,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:51,036 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537695474] [2021-06-05 20:06:51,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:51,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:51,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:51,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537695474] [2021-06-05 20:06:51,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537695474] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:51,352 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:51,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:51,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976613372] [2021-06-05 20:06:51,352 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:51,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:51,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:51,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:51,353 INFO L87 Difference]: Start difference. First operand 8845 states and 23767 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:52,104 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:06:52,276 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:52,462 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:06:52,656 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:06:52,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:52,810 INFO L93 Difference]: Finished difference Result 18222 states and 47493 transitions. [2021-06-05 20:06:52,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:52,811 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:52,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:52,832 INFO L225 Difference]: With dead ends: 18222 [2021-06-05 20:06:52,832 INFO L226 Difference]: Without dead ends: 18222 [2021-06-05 20:06:52,832 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1346.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:52,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18222 states. [2021-06-05 20:06:52,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18222 to 8893. [2021-06-05 20:06:52,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8893 states, 8891 states have (on average 2.6886739399392643) internal successors, (23905), 8892 states have internal predecessors, (23905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:53,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 23905 transitions. [2021-06-05 20:06:53,010 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 23905 transitions. Word has length 114 [2021-06-05 20:06:53,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:53,010 INFO L482 AbstractCegarLoop]: Abstraction has 8893 states and 23905 transitions. [2021-06-05 20:06:53,010 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:53,010 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 23905 transitions. [2021-06-05 20:06:53,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:53,018 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:53,019 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] [2021-06-05 20:06:53,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-06-05 20:06:53,019 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 20:06:53,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:53,019 INFO L82 PathProgramCache]: Analyzing trace with hash -2010849686, now seen corresponding path program 159 times [2021-06-05 20:06:53,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:53,019 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376648304] [2021-06-05 20:06:53,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:53,350 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 20:06:53,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:53,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376648304] [2021-06-05 20:06:53,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376648304] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:53,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:53,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:53,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593197138] [2021-06-05 20:06:53,351 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:53,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:53,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:53,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:53,351 INFO L87 Difference]: Start difference. First operand 8893 states and 23905 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:54,123 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:06:54,321 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:54,499 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:54,698 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:54,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:54,852 INFO L93 Difference]: Finished difference Result 18062 states and 47091 transitions. [2021-06-05 20:06:54,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:54,852 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:54,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:54,870 INFO L225 Difference]: With dead ends: 18062 [2021-06-05 20:06:54,871 INFO L226 Difference]: Without dead ends: 18062 [2021-06-05 20:06:54,871 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1377.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:54,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18062 states. [2021-06-05 20:06:55,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18062 to 8877. [2021-06-05 20:06:55,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:55,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-05 20:06:55,035 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-05 20:06:55,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:55,035 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-05 20:06:55,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:55,036 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-05 20:06:55,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:55,044 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:55,044 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] [2021-06-05 20:06:55,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-06-05 20:06:55,044 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 20:06:55,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:55,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1127300306, now seen corresponding path program 160 times [2021-06-05 20:06:55,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:55,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089427893] [2021-06-05 20:06:55,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:55,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:55,364 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:55,364 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089427893] [2021-06-05 20:06:55,364 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089427893] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:55,364 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:55,364 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:55,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718768862] [2021-06-05 20:06:55,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:55,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:55,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:55,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:55,365 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:56,165 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:06:56,316 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:06:56,508 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:06:56,707 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:06:56,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:56,845 INFO L93 Difference]: Finished difference Result 15213 states and 39831 transitions. [2021-06-05 20:06:56,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:56,845 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:56,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:56,861 INFO L225 Difference]: With dead ends: 15213 [2021-06-05 20:06:56,861 INFO L226 Difference]: Without dead ends: 15213 [2021-06-05 20:06:56,861 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1355.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:56,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15213 states. [2021-06-05 20:06:57,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15213 to 8813. [2021-06-05 20:06:57,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8813 states, 8811 states have (on average 2.6869821813642036) internal successors, (23675), 8812 states have internal predecessors, (23675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:57,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8813 states to 8813 states and 23675 transitions. [2021-06-05 20:06:57,024 INFO L78 Accepts]: Start accepts. Automaton has 8813 states and 23675 transitions. Word has length 114 [2021-06-05 20:06:57,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:57,024 INFO L482 AbstractCegarLoop]: Abstraction has 8813 states and 23675 transitions. [2021-06-05 20:06:57,024 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:57,024 INFO L276 IsEmpty]: Start isEmpty. Operand 8813 states and 23675 transitions. [2021-06-05 20:06:57,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:57,033 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:57,033 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] [2021-06-05 20:06:57,033 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-06-05 20:06:57,033 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 20:06:57,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:57,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1357943124, now seen corresponding path program 161 times [2021-06-05 20:06:57,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:57,033 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339034261] [2021-06-05 20:06:57,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:57,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:57,364 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:57,364 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339034261] [2021-06-05 20:06:57,364 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339034261] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:57,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:57,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:57,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36109175] [2021-06-05 20:06:57,365 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:57,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:57,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:57,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:57,365 INFO L87 Difference]: Start difference. First operand 8813 states and 23675 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:58,128 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:06:58,297 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:06:58,483 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:06:58,676 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:06:58,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:06:58,807 INFO L93 Difference]: Finished difference Result 13877 states and 36426 transitions. [2021-06-05 20:06:58,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:06:58,808 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:06:58,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:06:58,822 INFO L225 Difference]: With dead ends: 13877 [2021-06-05 20:06:58,823 INFO L226 Difference]: Without dead ends: 13877 [2021-06-05 20:06:58,823 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1367.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:06:58,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13877 states. [2021-06-05 20:06:58,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13877 to 8875. [2021-06-05 20:06:58,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8875 states, 8873 states have (on average 2.688380480108193) internal successors, (23854), 8874 states have internal predecessors, (23854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:58,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8875 states to 8875 states and 23854 transitions. [2021-06-05 20:06:58,968 INFO L78 Accepts]: Start accepts. Automaton has 8875 states and 23854 transitions. Word has length 114 [2021-06-05 20:06:58,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:06:58,968 INFO L482 AbstractCegarLoop]: Abstraction has 8875 states and 23854 transitions. [2021-06-05 20:06:58,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:06:58,968 INFO L276 IsEmpty]: Start isEmpty. Operand 8875 states and 23854 transitions. [2021-06-05 20:06:58,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:06:58,976 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:06:58,977 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] [2021-06-05 20:06:58,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-06-05 20:06:58,977 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 20:06:58,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:06:58,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1606490104, now seen corresponding path program 162 times [2021-06-05 20:06:58,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:06:58,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580526845] [2021-06-05 20:06:58,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:06:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:06:59,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:06:59,301 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:06:59,301 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580526845] [2021-06-05 20:06:59,301 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580526845] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:06:59,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:06:59,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:06:59,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637846583] [2021-06-05 20:06:59,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:06:59,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:06:59,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:06:59,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:06:59,302 INFO L87 Difference]: Start difference. First operand 8875 states and 23854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:00,055 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:07:00,225 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:00,400 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:00,598 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:00,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:00,725 INFO L93 Difference]: Finished difference Result 13717 states and 36024 transitions. [2021-06-05 20:07:00,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:00,725 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:00,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:00,740 INFO L225 Difference]: With dead ends: 13717 [2021-06-05 20:07:00,740 INFO L226 Difference]: Without dead ends: 13717 [2021-06-05 20:07:00,740 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1342.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:00,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13717 states. [2021-06-05 20:07:00,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13717 to 8859. [2021-06-05 20:07:00,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8859 states, 8857 states have (on average 2.6880433555379923) internal successors, (23808), 8858 states have internal predecessors, (23808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:00,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8859 states to 8859 states and 23808 transitions. [2021-06-05 20:07:00,882 INFO L78 Accepts]: Start accepts. Automaton has 8859 states and 23808 transitions. Word has length 114 [2021-06-05 20:07:00,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:00,882 INFO L482 AbstractCegarLoop]: Abstraction has 8859 states and 23808 transitions. [2021-06-05 20:07:00,882 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:00,882 INFO L276 IsEmpty]: Start isEmpty. Operand 8859 states and 23808 transitions. [2021-06-05 20:07:00,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:00,890 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:00,890 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] [2021-06-05 20:07:00,890 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-06-05 20:07:00,890 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 20:07:00,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:00,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1531659888, now seen corresponding path program 163 times [2021-06-05 20:07:00,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:00,891 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218258743] [2021-06-05 20:07:00,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:01,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:01,272 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:01,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218258743] [2021-06-05 20:07:01,272 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218258743] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:01,272 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:01,272 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:01,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898062065] [2021-06-05 20:07:01,273 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:01,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:01,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:01,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:01,273 INFO L87 Difference]: Start difference. First operand 8859 states and 23808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:02,045 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:07:02,201 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:07:02,391 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:02,592 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:02,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:02,730 INFO L93 Difference]: Finished difference Result 14005 states and 36852 transitions. [2021-06-05 20:07:02,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:02,730 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:02,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:02,745 INFO L225 Difference]: With dead ends: 14005 [2021-06-05 20:07:02,745 INFO L226 Difference]: Without dead ends: 14005 [2021-06-05 20:07:02,745 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1393.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:02,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14005 states. [2021-06-05 20:07:02,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14005 to 8827. [2021-06-05 20:07:02,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8827 states, 8825 states have (on average 2.6873654390934845) internal successors, (23716), 8826 states have internal predecessors, (23716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:02,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8827 states to 8827 states and 23716 transitions. [2021-06-05 20:07:02,890 INFO L78 Accepts]: Start accepts. Automaton has 8827 states and 23716 transitions. Word has length 114 [2021-06-05 20:07:02,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:02,890 INFO L482 AbstractCegarLoop]: Abstraction has 8827 states and 23716 transitions. [2021-06-05 20:07:02,890 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:02,890 INFO L276 IsEmpty]: Start isEmpty. Operand 8827 states and 23716 transitions. [2021-06-05 20:07:02,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:02,899 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:02,899 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] [2021-06-05 20:07:02,900 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-06-05 20:07:02,900 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 20:07:02,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:02,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1055124270, now seen corresponding path program 164 times [2021-06-05 20:07:02,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:02,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695815738] [2021-06-05 20:07:02,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:03,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:03,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:03,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695815738] [2021-06-05 20:07:03,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695815738] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:03,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:03,234 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:03,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103365834] [2021-06-05 20:07:03,234 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:03,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:03,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:03,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:03,235 INFO L87 Difference]: Start difference. First operand 8827 states and 23716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:04,004 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:07:04,149 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:07:04,339 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:04,537 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:04,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:04,656 INFO L93 Difference]: Finished difference Result 10720 states and 28388 transitions. [2021-06-05 20:07:04,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:04,656 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:04,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:04,667 INFO L225 Difference]: With dead ends: 10720 [2021-06-05 20:07:04,667 INFO L226 Difference]: Without dead ends: 10720 [2021-06-05 20:07:04,668 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1330.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:04,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10720 states. [2021-06-05 20:07:04,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10720 to 8911. [2021-06-05 20:07:04,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8911 states, 8909 states have (on average 2.6896396902009205) internal successors, (23962), 8910 states have internal predecessors, (23962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:04,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8911 states to 8911 states and 23962 transitions. [2021-06-05 20:07:04,797 INFO L78 Accepts]: Start accepts. Automaton has 8911 states and 23962 transitions. Word has length 114 [2021-06-05 20:07:04,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:04,797 INFO L482 AbstractCegarLoop]: Abstraction has 8911 states and 23962 transitions. [2021-06-05 20:07:04,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:04,797 INFO L276 IsEmpty]: Start isEmpty. Operand 8911 states and 23962 transitions. [2021-06-05 20:07:04,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:04,805 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:04,805 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] [2021-06-05 20:07:04,806 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-06-05 20:07:04,806 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 20:07:04,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:04,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1550834720, now seen corresponding path program 4 times [2021-06-05 20:07:04,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:04,806 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625481569] [2021-06-05 20:07:04,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:05,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:05,366 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:05,366 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625481569] [2021-06-05 20:07:05,366 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625481569] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:05,366 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:05,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-05 20:07:05,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54819984] [2021-06-05 20:07:05,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-05 20:07:05,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:05,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-05 20:07:05,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2021-06-05 20:07:05,367 INFO L87 Difference]: Start difference. First operand 8911 states and 23962 transitions. Second operand has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:10,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:10,093 INFO L93 Difference]: Finished difference Result 13036 states and 34514 transitions. [2021-06-05 20:07:10,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-06-05 20:07:10,094 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:10,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:10,107 INFO L225 Difference]: With dead ends: 13036 [2021-06-05 20:07:10,108 INFO L226 Difference]: Without dead ends: 12923 [2021-06-05 20:07:10,108 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 3140.9ms TimeCoverageRelationStatistics Valid=1424, Invalid=4896, Unknown=0, NotChecked=0, Total=6320 [2021-06-05 20:07:10,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12923 states. [2021-06-05 20:07:10,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12923 to 10256. [2021-06-05 20:07:10,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10256 states, 10254 states have (on average 2.68860932319095) internal successors, (27569), 10255 states have internal predecessors, (27569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:10,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10256 states to 10256 states and 27569 transitions. [2021-06-05 20:07:10,257 INFO L78 Accepts]: Start accepts. Automaton has 10256 states and 27569 transitions. Word has length 114 [2021-06-05 20:07:10,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:10,257 INFO L482 AbstractCegarLoop]: Abstraction has 10256 states and 27569 transitions. [2021-06-05 20:07:10,257 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:10,257 INFO L276 IsEmpty]: Start isEmpty. Operand 10256 states and 27569 transitions. [2021-06-05 20:07:10,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:10,267 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:10,267 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] [2021-06-05 20:07:10,267 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-06-05 20:07:10,267 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 20:07:10,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:10,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1940765848, now seen corresponding path program 165 times [2021-06-05 20:07:10,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:10,267 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361171549] [2021-06-05 20:07:10,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:10,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:10,601 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:10,601 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361171549] [2021-06-05 20:07:10,601 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361171549] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:10,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:10,602 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 20:07:10,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455084536] [2021-06-05 20:07:10,602 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 20:07:10,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:10,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 20:07:10,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-06-05 20:07:10,602 INFO L87 Difference]: Start difference. First operand 10256 states and 27569 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:11,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:11,722 INFO L93 Difference]: Finished difference Result 11823 states and 30921 transitions. [2021-06-05 20:07:11,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 20:07:11,722 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:11,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:11,734 INFO L225 Difference]: With dead ends: 11823 [2021-06-05 20:07:11,734 INFO L226 Difference]: Without dead ends: 11823 [2021-06-05 20:07:11,734 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 941.7ms TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 20:07:11,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11823 states. [2021-06-05 20:07:11,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11823 to 10021. [2021-06-05 20:07:11,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10021 states, 10019 states have (on average 2.697874039325282) internal successors, (27030), 10020 states have internal predecessors, (27030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:11,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10021 states to 10021 states and 27030 transitions. [2021-06-05 20:07:11,880 INFO L78 Accepts]: Start accepts. Automaton has 10021 states and 27030 transitions. Word has length 114 [2021-06-05 20:07:11,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:11,880 INFO L482 AbstractCegarLoop]: Abstraction has 10021 states and 27030 transitions. [2021-06-05 20:07:11,880 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:11,880 INFO L276 IsEmpty]: Start isEmpty. Operand 10021 states and 27030 transitions. [2021-06-05 20:07:11,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:11,889 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:11,889 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] [2021-06-05 20:07:11,889 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-06-05 20:07:11,889 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 20:07:11,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:11,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1331760138, now seen corresponding path program 166 times [2021-06-05 20:07:11,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:11,890 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430681819] [2021-06-05 20:07:11,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:12,220 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 20:07:12,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:12,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430681819] [2021-06-05 20:07:12,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430681819] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:12,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:12,221 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:12,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593136306] [2021-06-05 20:07:12,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:12,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:12,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:12,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:12,221 INFO L87 Difference]: Start difference. First operand 10021 states and 27030 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:13,007 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:07:13,157 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:07:13,346 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:13,546 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:13,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:13,719 INFO L93 Difference]: Finished difference Result 24288 states and 64469 transitions. [2021-06-05 20:07:13,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:13,719 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:13,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:13,745 INFO L225 Difference]: With dead ends: 24288 [2021-06-05 20:07:13,745 INFO L226 Difference]: Without dead ends: 24288 [2021-06-05 20:07:13,745 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1328.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:13,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24288 states. [2021-06-05 20:07:13,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24288 to 10133. [2021-06-05 20:07:13,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10133 states, 10131 states have (on average 2.699832198203534) internal successors, (27352), 10132 states have internal predecessors, (27352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:14,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10133 states to 10133 states and 27352 transitions. [2021-06-05 20:07:14,001 INFO L78 Accepts]: Start accepts. Automaton has 10133 states and 27352 transitions. Word has length 114 [2021-06-05 20:07:14,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:14,001 INFO L482 AbstractCegarLoop]: Abstraction has 10133 states and 27352 transitions. [2021-06-05 20:07:14,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:14,001 INFO L276 IsEmpty]: Start isEmpty. Operand 10133 states and 27352 transitions. [2021-06-05 20:07:14,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:14,010 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:14,010 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] [2021-06-05 20:07:14,010 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-06-05 20:07:14,011 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 20:07:14,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:14,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1049970422, now seen corresponding path program 167 times [2021-06-05 20:07:14,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:14,011 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328100961] [2021-06-05 20:07:14,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:14,336 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 20:07:14,336 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:14,336 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328100961] [2021-06-05 20:07:14,336 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328100961] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:14,336 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:14,336 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:14,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363117428] [2021-06-05 20:07:14,337 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:14,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:14,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:14,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:14,337 INFO L87 Difference]: Start difference. First operand 10133 states and 27352 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:15,118 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:07:15,293 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:15,466 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:15,667 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:15,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:15,853 INFO L93 Difference]: Finished difference Result 26816 states and 71018 transitions. [2021-06-05 20:07:15,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:15,854 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:15,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:15,883 INFO L225 Difference]: With dead ends: 26816 [2021-06-05 20:07:15,883 INFO L226 Difference]: Without dead ends: 26816 [2021-06-05 20:07:15,883 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1330.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:15,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26816 states. [2021-06-05 20:07:16,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26816 to 10149. [2021-06-05 20:07:16,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10149 states, 10147 states have (on average 2.7001084064255445) internal successors, (27398), 10148 states have internal predecessors, (27398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:16,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10149 states to 10149 states and 27398 transitions. [2021-06-05 20:07:16,117 INFO L78 Accepts]: Start accepts. Automaton has 10149 states and 27398 transitions. Word has length 114 [2021-06-05 20:07:16,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:16,117 INFO L482 AbstractCegarLoop]: Abstraction has 10149 states and 27398 transitions. [2021-06-05 20:07:16,117 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:16,117 INFO L276 IsEmpty]: Start isEmpty. Operand 10149 states and 27398 transitions. [2021-06-05 20:07:16,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:16,127 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:16,127 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] [2021-06-05 20:07:16,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-06-05 20:07:16,127 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 20:07:16,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:16,127 INFO L82 PathProgramCache]: Analyzing trace with hash -2138443608, now seen corresponding path program 168 times [2021-06-05 20:07:16,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:16,127 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034248217] [2021-06-05 20:07:16,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:16,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:16,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034248217] [2021-06-05 20:07:16,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034248217] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:16,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:16,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:16,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786966899] [2021-06-05 20:07:16,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:16,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:16,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:16,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:16,454 INFO L87 Difference]: Start difference. First operand 10149 states and 27398 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:17,236 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:07:17,412 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:17,605 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:07:17,803 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:07:17,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:17,985 INFO L93 Difference]: Finished difference Result 25156 states and 66418 transitions. [2021-06-05 20:07:17,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:17,985 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:17,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:18,015 INFO L225 Difference]: With dead ends: 25156 [2021-06-05 20:07:18,015 INFO L226 Difference]: Without dead ends: 25156 [2021-06-05 20:07:18,015 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1352.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:18,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25156 states. [2021-06-05 20:07:18,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25156 to 10121. [2021-06-05 20:07:18,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10121 states, 10119 states have (on average 2.6976974009289454) internal successors, (27298), 10120 states have internal predecessors, (27298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:18,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10121 states to 10121 states and 27298 transitions. [2021-06-05 20:07:18,245 INFO L78 Accepts]: Start accepts. Automaton has 10121 states and 27298 transitions. Word has length 114 [2021-06-05 20:07:18,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:18,246 INFO L482 AbstractCegarLoop]: Abstraction has 10121 states and 27298 transitions. [2021-06-05 20:07:18,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:18,246 INFO L276 IsEmpty]: Start isEmpty. Operand 10121 states and 27298 transitions. [2021-06-05 20:07:18,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:18,256 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:18,256 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] [2021-06-05 20:07:18,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-06-05 20:07:18,257 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 20:07:18,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:18,257 INFO L82 PathProgramCache]: Analyzing trace with hash -728223798, now seen corresponding path program 169 times [2021-06-05 20:07:18,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:18,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350259030] [2021-06-05 20:07:18,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:18,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:18,586 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:18,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350259030] [2021-06-05 20:07:18,586 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350259030] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:18,586 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:18,586 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:18,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081705536] [2021-06-05 20:07:18,587 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:18,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:18,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:18,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:18,587 INFO L87 Difference]: Start difference. First operand 10121 states and 27298 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:19,134 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-06-05 20:07:19,416 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:07:19,575 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:19,749 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:19,945 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:20,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:20,117 INFO L93 Difference]: Finished difference Result 24394 states and 64635 transitions. [2021-06-05 20:07:20,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:20,117 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:20,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:20,142 INFO L225 Difference]: With dead ends: 24394 [2021-06-05 20:07:20,142 INFO L226 Difference]: Without dead ends: 24394 [2021-06-05 20:07:20,142 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1360.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:20,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24394 states. [2021-06-05 20:07:20,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24394 to 10153. [2021-06-05 20:07:20,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10153 states, 10151 states have (on average 2.6982563294256723) internal successors, (27390), 10152 states have internal predecessors, (27390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:20,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10153 states to 10153 states and 27390 transitions. [2021-06-05 20:07:20,372 INFO L78 Accepts]: Start accepts. Automaton has 10153 states and 27390 transitions. Word has length 114 [2021-06-05 20:07:20,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:20,372 INFO L482 AbstractCegarLoop]: Abstraction has 10153 states and 27390 transitions. [2021-06-05 20:07:20,372 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:20,372 INFO L276 IsEmpty]: Start isEmpty. Operand 10153 states and 27390 transitions. [2021-06-05 20:07:20,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:20,382 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:20,382 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] [2021-06-05 20:07:20,382 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-06-05 20:07:20,382 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 20:07:20,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:20,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1816696984, now seen corresponding path program 170 times [2021-06-05 20:07:20,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:20,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867405259] [2021-06-05 20:07:20,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:20,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:20,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:20,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867405259] [2021-06-05 20:07:20,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867405259] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:20,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:20,698 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:20,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049383967] [2021-06-05 20:07:20,698 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:20,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:20,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:20,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:20,698 INFO L87 Difference]: Start difference. First operand 10153 states and 27390 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:21,485 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:07:21,643 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:21,849 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:07:22,043 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:07:22,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:22,233 INFO L93 Difference]: Finished difference Result 25207 states and 66439 transitions. [2021-06-05 20:07:22,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:22,233 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:22,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:22,262 INFO L225 Difference]: With dead ends: 25207 [2021-06-05 20:07:22,262 INFO L226 Difference]: Without dead ends: 25207 [2021-06-05 20:07:22,263 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1332.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:22,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25207 states. [2021-06-05 20:07:22,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25207 to 10137. [2021-06-05 20:07:22,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10137 states, 10135 states have (on average 2.697977306364085) internal successors, (27344), 10136 states have internal predecessors, (27344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:22,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10137 states to 10137 states and 27344 transitions. [2021-06-05 20:07:22,479 INFO L78 Accepts]: Start accepts. Automaton has 10137 states and 27344 transitions. Word has length 114 [2021-06-05 20:07:22,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:22,479 INFO L482 AbstractCegarLoop]: Abstraction has 10137 states and 27344 transitions. [2021-06-05 20:07:22,479 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:22,479 INFO L276 IsEmpty]: Start isEmpty. Operand 10137 states and 27344 transitions. [2021-06-05 20:07:22,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:22,488 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:22,488 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] [2021-06-05 20:07:22,488 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-06-05 20:07:22,488 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 20:07:22,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:22,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1018833524, now seen corresponding path program 171 times [2021-06-05 20:07:22,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:22,488 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090582481] [2021-06-05 20:07:22,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:22,800 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 20:07:22,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:22,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090582481] [2021-06-05 20:07:22,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090582481] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:22,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:22,800 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:22,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618178990] [2021-06-05 20:07:22,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:22,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:22,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:22,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:22,801 INFO L87 Difference]: Start difference. First operand 10137 states and 27344 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:23,558 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:07:23,714 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:23,894 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:07:24,086 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:07:24,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:24,240 INFO L93 Difference]: Finished difference Result 24533 states and 64852 transitions. [2021-06-05 20:07:24,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:24,240 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:24,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:24,265 INFO L225 Difference]: With dead ends: 24533 [2021-06-05 20:07:24,265 INFO L226 Difference]: Without dead ends: 24533 [2021-06-05 20:07:24,265 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1325.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:24,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24533 states. [2021-06-05 20:07:24,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24533 to 10153. [2021-06-05 20:07:24,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10153 states, 10151 states have (on average 2.6982563294256723) internal successors, (27390), 10152 states have internal predecessors, (27390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:24,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10153 states to 10153 states and 27390 transitions. [2021-06-05 20:07:24,507 INFO L78 Accepts]: Start accepts. Automaton has 10153 states and 27390 transitions. Word has length 114 [2021-06-05 20:07:24,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:24,507 INFO L482 AbstractCegarLoop]: Abstraction has 10153 states and 27390 transitions. [2021-06-05 20:07:24,508 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:24,508 INFO L276 IsEmpty]: Start isEmpty. Operand 10153 states and 27390 transitions. [2021-06-05 20:07:24,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:24,519 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:24,519 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] [2021-06-05 20:07:24,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-06-05 20:07:24,519 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 20:07:24,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:24,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1267380504, now seen corresponding path program 172 times [2021-06-05 20:07:24,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:24,520 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827760293] [2021-06-05 20:07:24,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:24,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:24,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:24,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827760293] [2021-06-05 20:07:24,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827760293] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:24,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:24,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:24,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101384974] [2021-06-05 20:07:24,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:24,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:24,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:24,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:24,861 INFO L87 Difference]: Start difference. First operand 10153 states and 27390 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:25,631 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:07:25,804 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:25,974 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:26,166 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:26,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:26,320 INFO L93 Difference]: Finished difference Result 21880 states and 58092 transitions. [2021-06-05 20:07:26,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:26,320 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:26,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:26,343 INFO L225 Difference]: With dead ends: 21880 [2021-06-05 20:07:26,343 INFO L226 Difference]: Without dead ends: 21880 [2021-06-05 20:07:26,343 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1323.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:26,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21880 states. [2021-06-05 20:07:26,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21880 to 10109. [2021-06-05 20:07:26,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6967448303156227) internal successors, (27256), 10108 states have internal predecessors, (27256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:26,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27256 transitions. [2021-06-05 20:07:26,519 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27256 transitions. Word has length 114 [2021-06-05 20:07:26,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:26,519 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27256 transitions. [2021-06-05 20:07:26,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:26,519 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27256 transitions. [2021-06-05 20:07:26,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:26,527 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:26,527 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] [2021-06-05 20:07:26,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-06-05 20:07:26,527 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 20:07:26,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:26,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1237081900, now seen corresponding path program 173 times [2021-06-05 20:07:26,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:26,527 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714988734] [2021-06-05 20:07:26,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:26,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:26,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:26,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714988734] [2021-06-05 20:07:26,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714988734] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:26,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:26,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:26,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492729889] [2021-06-05 20:07:26,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:26,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:26,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:26,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:26,873 INFO L87 Difference]: Start difference. First operand 10109 states and 27256 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:27,726 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:07:27,875 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:07:28,062 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:28,259 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:28,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:28,422 INFO L93 Difference]: Finished difference Result 23016 states and 61384 transitions. [2021-06-05 20:07:28,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:28,422 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:28,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:28,445 INFO L225 Difference]: With dead ends: 23016 [2021-06-05 20:07:28,445 INFO L226 Difference]: Without dead ends: 23016 [2021-06-05 20:07:28,445 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1388.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:28,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23016 states. [2021-06-05 20:07:28,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23016 to 10157. [2021-06-05 20:07:28,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.697587395371738) internal successors, (27394), 10156 states have internal predecessors, (27394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:28,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27394 transitions. [2021-06-05 20:07:28,635 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27394 transitions. Word has length 114 [2021-06-05 20:07:28,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:28,635 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27394 transitions. [2021-06-05 20:07:28,635 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:28,635 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27394 transitions. [2021-06-05 20:07:28,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:28,644 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:28,644 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] [2021-06-05 20:07:28,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-06-05 20:07:28,644 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 20:07:28,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:28,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1144648660, now seen corresponding path program 174 times [2021-06-05 20:07:28,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:28,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913654216] [2021-06-05 20:07:28,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:28,987 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 20:07:28,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:28,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913654216] [2021-06-05 20:07:28,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913654216] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:28,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:28,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:28,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321764302] [2021-06-05 20:07:28,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:28,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:28,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:28,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:28,988 INFO L87 Difference]: Start difference. First operand 10157 states and 27394 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:29,754 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:07:29,928 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:30,128 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:30,323 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:30,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:30,485 INFO L93 Difference]: Finished difference Result 23088 states and 61516 transitions. [2021-06-05 20:07:30,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:30,486 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:30,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:30,509 INFO L225 Difference]: With dead ends: 23088 [2021-06-05 20:07:30,509 INFO L226 Difference]: Without dead ends: 23088 [2021-06-05 20:07:30,509 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1370.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:30,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23088 states. [2021-06-05 20:07:30,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23088 to 10173. [2021-06-05 20:07:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10173 states, 10171 states have (on average 2.6978664831383345) internal successors, (27440), 10172 states have internal predecessors, (27440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:30,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10173 states to 10173 states and 27440 transitions. [2021-06-05 20:07:30,719 INFO L78 Accepts]: Start accepts. Automaton has 10173 states and 27440 transitions. Word has length 114 [2021-06-05 20:07:30,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:30,719 INFO L482 AbstractCegarLoop]: Abstraction has 10173 states and 27440 transitions. [2021-06-05 20:07:30,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:30,719 INFO L276 IsEmpty]: Start isEmpty. Operand 10173 states and 27440 transitions. [2021-06-05 20:07:30,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:30,729 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:30,729 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] [2021-06-05 20:07:30,729 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-06-05 20:07:30,729 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 20:07:30,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:30,729 INFO L82 PathProgramCache]: Analyzing trace with hash 2061845450, now seen corresponding path program 175 times [2021-06-05 20:07:30,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:30,729 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159096797] [2021-06-05 20:07:30,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:31,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:31,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:31,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159096797] [2021-06-05 20:07:31,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159096797] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:31,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:31,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:31,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508319773] [2021-06-05 20:07:31,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:31,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:31,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:31,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:31,066 INFO L87 Difference]: Start difference. First operand 10173 states and 27440 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:31,828 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:07:32,000 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:32,186 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:07:32,379 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:07:32,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:32,536 INFO L93 Difference]: Finished difference Result 22498 states and 59594 transitions. [2021-06-05 20:07:32,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:32,536 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:32,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:32,558 INFO L225 Difference]: With dead ends: 22498 [2021-06-05 20:07:32,558 INFO L226 Difference]: Without dead ends: 22498 [2021-06-05 20:07:32,558 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1352.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:32,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22498 states. [2021-06-05 20:07:32,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22498 to 10125. [2021-06-05 20:07:32,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.697026573150252) internal successors, (27302), 10124 states have internal predecessors, (27302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:32,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27302 transitions. [2021-06-05 20:07:32,758 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27302 transitions. Word has length 114 [2021-06-05 20:07:32,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:32,758 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27302 transitions. [2021-06-05 20:07:32,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:32,758 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27302 transitions. [2021-06-05 20:07:32,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:32,767 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:32,767 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] [2021-06-05 20:07:32,767 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-06-05 20:07:32,767 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 20:07:32,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:32,767 INFO L82 PathProgramCache]: Analyzing trace with hash 858264586, now seen corresponding path program 176 times [2021-06-05 20:07:32,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:32,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479015481] [2021-06-05 20:07:32,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:33,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:33,112 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:33,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479015481] [2021-06-05 20:07:33,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479015481] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:33,112 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:33,112 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:33,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545950764] [2021-06-05 20:07:33,112 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:33,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:33,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:33,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:33,113 INFO L87 Difference]: Start difference. First operand 10125 states and 27302 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:33,898 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:07:34,051 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:07:34,250 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:34,452 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:34,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:34,622 INFO L93 Difference]: Finished difference Result 19386 states and 51585 transitions. [2021-06-05 20:07:34,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:34,622 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:34,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:34,642 INFO L225 Difference]: With dead ends: 19386 [2021-06-05 20:07:34,643 INFO L226 Difference]: Without dead ends: 19386 [2021-06-05 20:07:34,643 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1350.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:34,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19386 states. [2021-06-05 20:07:34,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19386 to 10097. [2021-06-05 20:07:34,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10097 states, 10095 states have (on average 2.6963843486874692) internal successors, (27220), 10096 states have internal predecessors, (27220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:34,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10097 states to 10097 states and 27220 transitions. [2021-06-05 20:07:34,823 INFO L78 Accepts]: Start accepts. Automaton has 10097 states and 27220 transitions. Word has length 114 [2021-06-05 20:07:34,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:34,823 INFO L482 AbstractCegarLoop]: Abstraction has 10097 states and 27220 transitions. [2021-06-05 20:07:34,823 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:34,823 INFO L276 IsEmpty]: Start isEmpty. Operand 10097 states and 27220 transitions. [2021-06-05 20:07:34,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:34,832 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:34,832 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] [2021-06-05 20:07:34,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-06-05 20:07:34,832 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 20:07:34,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:34,832 INFO L82 PathProgramCache]: Analyzing trace with hash -2125186518, now seen corresponding path program 177 times [2021-06-05 20:07:34,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:34,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524450057] [2021-06-05 20:07:34,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:35,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:35,156 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:35,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524450057] [2021-06-05 20:07:35,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524450057] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:35,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:35,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:35,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199670840] [2021-06-05 20:07:35,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:35,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:35,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:35,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:35,156 INFO L87 Difference]: Start difference. First operand 10097 states and 27220 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:35,963 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:07:36,113 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:07:36,301 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:36,501 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:36,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:36,657 INFO L93 Difference]: Finished difference Result 19159 states and 50944 transitions. [2021-06-05 20:07:36,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:36,657 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:36,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:36,679 INFO L225 Difference]: With dead ends: 19159 [2021-06-05 20:07:36,679 INFO L226 Difference]: Without dead ends: 19159 [2021-06-05 20:07:36,679 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1364.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:36,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19159 states. [2021-06-05 20:07:36,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19159 to 10225. [2021-06-05 20:07:36,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10225 states, 10223 states have (on average 2.6986207571163066) internal successors, (27588), 10224 states have internal predecessors, (27588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:36,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10225 states to 10225 states and 27588 transitions. [2021-06-05 20:07:36,860 INFO L78 Accepts]: Start accepts. Automaton has 10225 states and 27588 transitions. Word has length 114 [2021-06-05 20:07:36,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:36,860 INFO L482 AbstractCegarLoop]: Abstraction has 10225 states and 27588 transitions. [2021-06-05 20:07:36,860 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:36,860 INFO L276 IsEmpty]: Start isEmpty. Operand 10225 states and 27588 transitions. [2021-06-05 20:07:36,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:36,870 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:36,870 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] [2021-06-05 20:07:36,870 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-06-05 20:07:36,870 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 20:07:36,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:36,870 INFO L82 PathProgramCache]: Analyzing trace with hash -211949782, now seen corresponding path program 178 times [2021-06-05 20:07:36,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:36,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142841350] [2021-06-05 20:07:36,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:37,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:37,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:37,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142841350] [2021-06-05 20:07:37,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142841350] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:37,191 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:37,191 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:37,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342655344] [2021-06-05 20:07:37,192 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:37,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:37,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:37,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:37,192 INFO L87 Difference]: Start difference. First operand 10225 states and 27588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:37,965 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:07:38,150 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:38,323 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:38,522 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:38,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:38,678 INFO L93 Difference]: Finished difference Result 21687 states and 57493 transitions. [2021-06-05 20:07:38,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:38,678 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:38,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:38,701 INFO L225 Difference]: With dead ends: 21687 [2021-06-05 20:07:38,701 INFO L226 Difference]: Without dead ends: 21687 [2021-06-05 20:07:38,701 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1351.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:38,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21687 states. [2021-06-05 20:07:38,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21687 to 10241. [2021-06-05 20:07:38,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10241 states, 10239 states have (on average 2.698896376599277) internal successors, (27634), 10240 states have internal predecessors, (27634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:38,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10241 states to 10241 states and 27634 transitions. [2021-06-05 20:07:38,902 INFO L78 Accepts]: Start accepts. Automaton has 10241 states and 27634 transitions. Word has length 114 [2021-06-05 20:07:38,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:38,902 INFO L482 AbstractCegarLoop]: Abstraction has 10241 states and 27634 transitions. [2021-06-05 20:07:38,902 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:38,902 INFO L276 IsEmpty]: Start isEmpty. Operand 10241 states and 27634 transitions. [2021-06-05 20:07:38,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:38,911 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:38,911 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] [2021-06-05 20:07:38,912 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-06-05 20:07:38,912 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 20:07:38,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:38,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1300422968, now seen corresponding path program 179 times [2021-06-05 20:07:38,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:38,912 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447239054] [2021-06-05 20:07:38,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:39,239 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 20:07:39,239 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:39,239 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447239054] [2021-06-05 20:07:39,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447239054] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:39,239 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:39,239 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:39,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461051389] [2021-06-05 20:07:39,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:39,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:39,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:39,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:39,240 INFO L87 Difference]: Start difference. First operand 10241 states and 27634 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:40,011 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:07:40,181 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:40,366 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:07:40,561 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:07:40,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:40,713 INFO L93 Difference]: Finished difference Result 20027 states and 52893 transitions. [2021-06-05 20:07:40,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:40,713 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:40,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:40,734 INFO L225 Difference]: With dead ends: 20027 [2021-06-05 20:07:40,734 INFO L226 Difference]: Without dead ends: 20027 [2021-06-05 20:07:40,734 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1346.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:40,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20027 states. [2021-06-05 20:07:40,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20027 to 10193. [2021-06-05 20:07:40,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10193 states, 10191 states have (on average 2.6980669217937394) internal successors, (27496), 10192 states have internal predecessors, (27496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:40,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10193 states to 10193 states and 27496 transitions. [2021-06-05 20:07:40,953 INFO L78 Accepts]: Start accepts. Automaton has 10193 states and 27496 transitions. Word has length 114 [2021-06-05 20:07:40,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:40,953 INFO L482 AbstractCegarLoop]: Abstraction has 10193 states and 27496 transitions. [2021-06-05 20:07:40,954 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:40,954 INFO L276 IsEmpty]: Start isEmpty. Operand 10193 states and 27496 transitions. [2021-06-05 20:07:40,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:40,963 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:40,963 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] [2021-06-05 20:07:40,963 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-06-05 20:07:40,963 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 20:07:40,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:40,963 INFO L82 PathProgramCache]: Analyzing trace with hash 109796842, now seen corresponding path program 180 times [2021-06-05 20:07:40,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:40,964 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411386434] [2021-06-05 20:07:40,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:41,266 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 20:07:41,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:41,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411386434] [2021-06-05 20:07:41,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411386434] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:41,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:41,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:41,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967125453] [2021-06-05 20:07:41,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:41,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:41,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:41,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:41,267 INFO L87 Difference]: Start difference. First operand 10193 states and 27496 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:42,059 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:07:42,218 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:42,395 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:42,593 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:42,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:42,764 INFO L93 Difference]: Finished difference Result 23017 states and 60672 transitions. [2021-06-05 20:07:42,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:42,764 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:42,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:42,787 INFO L225 Difference]: With dead ends: 23017 [2021-06-05 20:07:42,787 INFO L226 Difference]: Without dead ends: 23017 [2021-06-05 20:07:42,787 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1313.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:42,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23017 states. [2021-06-05 20:07:42,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23017 to 10225. [2021-06-05 20:07:42,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10225 states, 10223 states have (on average 2.6986207571163066) internal successors, (27588), 10224 states have internal predecessors, (27588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:42,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10225 states to 10225 states and 27588 transitions. [2021-06-05 20:07:42,982 INFO L78 Accepts]: Start accepts. Automaton has 10225 states and 27588 transitions. Word has length 114 [2021-06-05 20:07:42,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:42,982 INFO L482 AbstractCegarLoop]: Abstraction has 10225 states and 27588 transitions. [2021-06-05 20:07:42,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:42,982 INFO L276 IsEmpty]: Start isEmpty. Operand 10225 states and 27588 transitions. [2021-06-05 20:07:42,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:42,991 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:42,991 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] [2021-06-05 20:07:42,991 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-06-05 20:07:42,991 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 20:07:42,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:42,991 INFO L82 PathProgramCache]: Analyzing trace with hash -978676344, now seen corresponding path program 181 times [2021-06-05 20:07:42,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:42,991 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334227659] [2021-06-05 20:07:42,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:43,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:43,310 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:43,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334227659] [2021-06-05 20:07:43,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334227659] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:43,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:43,311 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:43,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957545946] [2021-06-05 20:07:43,311 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:43,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:43,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:43,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:43,311 INFO L87 Difference]: Start difference. First operand 10225 states and 27588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:44,108 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:07:44,267 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:44,459 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:07:44,655 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:07:44,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:44,835 INFO L93 Difference]: Finished difference Result 23830 states and 62476 transitions. [2021-06-05 20:07:44,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:44,835 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:44,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:44,860 INFO L225 Difference]: With dead ends: 23830 [2021-06-05 20:07:44,860 INFO L226 Difference]: Without dead ends: 23830 [2021-06-05 20:07:44,860 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1331.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:44,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23830 states. [2021-06-05 20:07:45,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23830 to 10209. [2021-06-05 20:07:45,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10209 states, 10207 states have (on average 2.698344273537768) internal successors, (27542), 10208 states have internal predecessors, (27542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:45,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10209 states to 10209 states and 27542 transitions. [2021-06-05 20:07:45,073 INFO L78 Accepts]: Start accepts. Automaton has 10209 states and 27542 transitions. Word has length 114 [2021-06-05 20:07:45,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:45,073 INFO L482 AbstractCegarLoop]: Abstraction has 10209 states and 27542 transitions. [2021-06-05 20:07:45,073 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:45,073 INFO L276 IsEmpty]: Start isEmpty. Operand 10209 states and 27542 transitions. [2021-06-05 20:07:45,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:45,082 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:45,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:07:45,083 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-06-05 20:07:45,083 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 20:07:45,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:45,083 INFO L82 PathProgramCache]: Analyzing trace with hash -180812884, now seen corresponding path program 182 times [2021-06-05 20:07:45,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:45,083 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119940637] [2021-06-05 20:07:45,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:45,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:45,411 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:45,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119940637] [2021-06-05 20:07:45,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119940637] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:45,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:45,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:45,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273949374] [2021-06-05 20:07:45,411 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:45,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:45,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:45,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:45,412 INFO L87 Difference]: Start difference. First operand 10209 states and 27542 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:46,210 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:07:46,407 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:46,593 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:07:46,791 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:07:46,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:46,969 INFO L93 Difference]: Finished difference Result 23156 states and 60889 transitions. [2021-06-05 20:07:46,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:46,969 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:46,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:46,992 INFO L225 Difference]: With dead ends: 23156 [2021-06-05 20:07:46,993 INFO L226 Difference]: Without dead ends: 23156 [2021-06-05 20:07:46,993 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1377.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:47,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23156 states. [2021-06-05 20:07:47,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23156 to 10225. [2021-06-05 20:07:47,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10225 states, 10223 states have (on average 2.6986207571163066) internal successors, (27588), 10224 states have internal predecessors, (27588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:47,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10225 states to 10225 states and 27588 transitions. [2021-06-05 20:07:47,218 INFO L78 Accepts]: Start accepts. Automaton has 10225 states and 27588 transitions. Word has length 114 [2021-06-05 20:07:47,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:47,218 INFO L482 AbstractCegarLoop]: Abstraction has 10225 states and 27588 transitions. [2021-06-05 20:07:47,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:47,218 INFO L276 IsEmpty]: Start isEmpty. Operand 10225 states and 27588 transitions. [2021-06-05 20:07:47,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:47,229 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:47,229 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] [2021-06-05 20:07:47,229 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-06-05 20:07:47,229 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 20:07:47,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:47,229 INFO L82 PathProgramCache]: Analyzing trace with hash -429359864, now seen corresponding path program 183 times [2021-06-05 20:07:47,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:47,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711401479] [2021-06-05 20:07:47,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:47,537 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 20:07:47,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:47,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711401479] [2021-06-05 20:07:47,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711401479] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:47,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:47,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:47,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775259008] [2021-06-05 20:07:47,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:47,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:47,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:47,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:47,538 INFO L87 Difference]: Start difference. First operand 10225 states and 27588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:48,309 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:07:48,471 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:48,644 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:48,842 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:48,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:48,983 INFO L93 Difference]: Finished difference Result 20221 states and 53415 transitions. [2021-06-05 20:07:48,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:48,983 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:48,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:49,005 INFO L225 Difference]: With dead ends: 20221 [2021-06-05 20:07:49,005 INFO L226 Difference]: Without dead ends: 20221 [2021-06-05 20:07:49,005 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1323.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:49,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20221 states. [2021-06-05 20:07:49,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20221 to 10161. [2021-06-05 20:07:49,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10161 states, 10159 states have (on average 2.6975095974013192) internal successors, (27404), 10160 states have internal predecessors, (27404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:49,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10161 states to 10161 states and 27404 transitions. [2021-06-05 20:07:49,196 INFO L78 Accepts]: Start accepts. Automaton has 10161 states and 27404 transitions. Word has length 114 [2021-06-05 20:07:49,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:49,197 INFO L482 AbstractCegarLoop]: Abstraction has 10161 states and 27404 transitions. [2021-06-05 20:07:49,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:49,197 INFO L276 IsEmpty]: Start isEmpty. Operand 10161 states and 27404 transitions. [2021-06-05 20:07:49,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:49,206 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:49,206 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] [2021-06-05 20:07:49,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-06-05 20:07:49,206 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 20:07:49,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:49,207 INFO L82 PathProgramCache]: Analyzing trace with hash -25405332, now seen corresponding path program 184 times [2021-06-05 20:07:49,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:49,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595423543] [2021-06-05 20:07:49,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:49,514 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 20:07:49,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:49,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595423543] [2021-06-05 20:07:49,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595423543] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:49,514 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:49,514 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:49,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222918427] [2021-06-05 20:07:49,514 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:49,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:49,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:49,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:49,515 INFO L87 Difference]: Start difference. First operand 10161 states and 27404 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:50,290 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:07:50,448 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:50,621 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:50,815 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:50,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:50,958 INFO L93 Difference]: Finished difference Result 18737 states and 49754 transitions. [2021-06-05 20:07:50,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:50,959 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:50,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:50,978 INFO L225 Difference]: With dead ends: 18737 [2021-06-05 20:07:50,978 INFO L226 Difference]: Without dead ends: 18737 [2021-06-05 20:07:50,978 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1320.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:51,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18737 states. [2021-06-05 20:07:51,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18737 to 10225. [2021-06-05 20:07:51,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10225 states, 10223 states have (on average 2.6986207571163066) internal successors, (27588), 10224 states have internal predecessors, (27588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:51,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10225 states to 10225 states and 27588 transitions. [2021-06-05 20:07:51,161 INFO L78 Accepts]: Start accepts. Automaton has 10225 states and 27588 transitions. Word has length 114 [2021-06-05 20:07:51,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:51,161 INFO L482 AbstractCegarLoop]: Abstraction has 10225 states and 27588 transitions. [2021-06-05 20:07:51,161 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:51,161 INFO L276 IsEmpty]: Start isEmpty. Operand 10225 states and 27588 transitions. [2021-06-05 20:07:51,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:51,170 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:51,170 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] [2021-06-05 20:07:51,170 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-06-05 20:07:51,170 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 20:07:51,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:51,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1113878518, now seen corresponding path program 185 times [2021-06-05 20:07:51,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:51,171 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409869762] [2021-06-05 20:07:51,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:51,578 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 20:07:51,578 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:51,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409869762] [2021-06-05 20:07:51,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409869762] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:51,578 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:51,578 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:51,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258435895] [2021-06-05 20:07:51,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:51,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:51,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:51,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:51,579 INFO L87 Difference]: Start difference. First operand 10225 states and 27588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:52,379 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:07:52,536 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:52,720 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:07:52,908 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:07:53,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:53,052 INFO L93 Difference]: Finished difference Result 19550 states and 51558 transitions. [2021-06-05 20:07:53,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:53,052 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:53,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:53,071 INFO L225 Difference]: With dead ends: 19550 [2021-06-05 20:07:53,071 INFO L226 Difference]: Without dead ends: 19550 [2021-06-05 20:07:53,072 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1435.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:53,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19550 states. [2021-06-05 20:07:53,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19550 to 10209. [2021-06-05 20:07:53,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10209 states, 10207 states have (on average 2.698344273537768) internal successors, (27542), 10208 states have internal predecessors, (27542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:53,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10209 states to 10209 states and 27542 transitions. [2021-06-05 20:07:53,251 INFO L78 Accepts]: Start accepts. Automaton has 10209 states and 27542 transitions. Word has length 114 [2021-06-05 20:07:53,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:53,252 INFO L482 AbstractCegarLoop]: Abstraction has 10209 states and 27542 transitions. [2021-06-05 20:07:53,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:53,252 INFO L276 IsEmpty]: Start isEmpty. Operand 10209 states and 27542 transitions. [2021-06-05 20:07:53,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:53,260 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:53,264 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] [2021-06-05 20:07:53,264 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-06-05 20:07:53,265 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 20:07:53,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:53,265 INFO L82 PathProgramCache]: Analyzing trace with hash -316015058, now seen corresponding path program 186 times [2021-06-05 20:07:53,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:53,265 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000972303] [2021-06-05 20:07:53,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:53,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:53,572 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:53,572 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000972303] [2021-06-05 20:07:53,572 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000972303] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:53,572 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:53,572 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:53,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638315875] [2021-06-05 20:07:53,573 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:53,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:53,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:53,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:53,573 INFO L87 Difference]: Start difference. First operand 10209 states and 27542 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:54,338 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:07:54,496 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:54,680 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:07:54,873 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:07:55,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:55,034 INFO L93 Difference]: Finished difference Result 22663 states and 59508 transitions. [2021-06-05 20:07:55,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:55,034 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:55,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:55,059 INFO L225 Difference]: With dead ends: 22663 [2021-06-05 20:07:55,059 INFO L226 Difference]: Without dead ends: 22663 [2021-06-05 20:07:55,059 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1330.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:55,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22663 states. [2021-06-05 20:07:55,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22663 to 10225. [2021-06-05 20:07:55,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10225 states, 10223 states have (on average 2.6986207571163066) internal successors, (27588), 10224 states have internal predecessors, (27588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:55,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10225 states to 10225 states and 27588 transitions. [2021-06-05 20:07:55,279 INFO L78 Accepts]: Start accepts. Automaton has 10225 states and 27588 transitions. Word has length 114 [2021-06-05 20:07:55,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:55,279 INFO L482 AbstractCegarLoop]: Abstraction has 10225 states and 27588 transitions. [2021-06-05 20:07:55,279 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:55,279 INFO L276 IsEmpty]: Start isEmpty. Operand 10225 states and 27588 transitions. [2021-06-05 20:07:55,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:55,289 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:55,289 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] [2021-06-05 20:07:55,289 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-06-05 20:07:55,289 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 20:07:55,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:55,289 INFO L82 PathProgramCache]: Analyzing trace with hash -564562038, now seen corresponding path program 187 times [2021-06-05 20:07:55,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:55,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176684648] [2021-06-05 20:07:55,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:55,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:55,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:55,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176684648] [2021-06-05 20:07:55,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176684648] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:55,594 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:55,594 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:55,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879857986] [2021-06-05 20:07:55,594 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:55,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:55,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:55,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:55,594 INFO L87 Difference]: Start difference. First operand 10225 states and 27588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:56,377 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:07:56,537 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:56,712 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:07:56,909 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:07:57,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:57,056 INFO L93 Difference]: Finished difference Result 19728 states and 52034 transitions. [2021-06-05 20:07:57,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:57,057 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:57,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:57,076 INFO L225 Difference]: With dead ends: 19728 [2021-06-05 20:07:57,076 INFO L226 Difference]: Without dead ends: 19728 [2021-06-05 20:07:57,076 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1314.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:57,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19728 states. [2021-06-05 20:07:57,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19728 to 10193. [2021-06-05 20:07:57,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10193 states, 10191 states have (on average 2.6980669217937394) internal successors, (27496), 10192 states have internal predecessors, (27496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:57,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10193 states to 10193 states and 27496 transitions. [2021-06-05 20:07:57,295 INFO L78 Accepts]: Start accepts. Automaton has 10193 states and 27496 transitions. Word has length 114 [2021-06-05 20:07:57,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:57,295 INFO L482 AbstractCegarLoop]: Abstraction has 10193 states and 27496 transitions. [2021-06-05 20:07:57,295 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:57,295 INFO L276 IsEmpty]: Start isEmpty. Operand 10193 states and 27496 transitions. [2021-06-05 20:07:57,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:57,305 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:57,305 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] [2021-06-05 20:07:57,305 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-06-05 20:07:57,305 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 20:07:57,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:57,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1584832344, now seen corresponding path program 188 times [2021-06-05 20:07:57,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:57,306 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73673468] [2021-06-05 20:07:57,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:57,656 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 20:07:57,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:57,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73673468] [2021-06-05 20:07:57,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73673468] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:57,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:57,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:57,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088519577] [2021-06-05 20:07:57,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:57,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:57,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:57,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:57,657 INFO L87 Difference]: Start difference. First operand 10193 states and 27496 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:58,437 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:07:58,610 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:07:58,797 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:07:58,995 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:07:59,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:07:59,155 INFO L93 Difference]: Finished difference Result 18860 states and 49925 transitions. [2021-06-05 20:07:59,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:07:59,156 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:07:59,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:07:59,175 INFO L225 Difference]: With dead ends: 18860 [2021-06-05 20:07:59,175 INFO L226 Difference]: Without dead ends: 18860 [2021-06-05 20:07:59,176 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1369.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:07:59,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18860 states. [2021-06-05 20:07:59,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18860 to 10241. [2021-06-05 20:07:59,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10241 states, 10239 states have (on average 2.698896376599277) internal successors, (27634), 10240 states have internal predecessors, (27634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:59,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10241 states to 10241 states and 27634 transitions. [2021-06-05 20:07:59,354 INFO L78 Accepts]: Start accepts. Automaton has 10241 states and 27634 transitions. Word has length 114 [2021-06-05 20:07:59,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:07:59,354 INFO L482 AbstractCegarLoop]: Abstraction has 10241 states and 27634 transitions. [2021-06-05 20:07:59,354 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:07:59,354 INFO L276 IsEmpty]: Start isEmpty. Operand 10241 states and 27634 transitions. [2021-06-05 20:07:59,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:07:59,363 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:07:59,364 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] [2021-06-05 20:07:59,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-06-05 20:07:59,364 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 20:07:59,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:07:59,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1833379324, now seen corresponding path program 189 times [2021-06-05 20:07:59,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:07:59,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538713211] [2021-06-05 20:07:59,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:07:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:07:59,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:07:59,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:07:59,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538713211] [2021-06-05 20:07:59,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538713211] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:07:59,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:07:59,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:07:59,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715773153] [2021-06-05 20:07:59,685 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:07:59,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:07:59,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:07:59,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:07:59,685 INFO L87 Difference]: Start difference. First operand 10241 states and 27634 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:00,444 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:00,614 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:00,787 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:00,984 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:01,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:01,120 INFO L93 Difference]: Finished difference Result 18700 states and 49523 transitions. [2021-06-05 20:08:01,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:01,121 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:01,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:01,139 INFO L225 Difference]: With dead ends: 18700 [2021-06-05 20:08:01,139 INFO L226 Difference]: Without dead ends: 18700 [2021-06-05 20:08:01,140 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1331.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:01,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18700 states. [2021-06-05 20:08:01,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18700 to 10225. [2021-06-05 20:08:01,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10225 states, 10223 states have (on average 2.6986207571163066) internal successors, (27588), 10224 states have internal predecessors, (27588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:01,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10225 states to 10225 states and 27588 transitions. [2021-06-05 20:08:01,315 INFO L78 Accepts]: Start accepts. Automaton has 10225 states and 27588 transitions. Word has length 114 [2021-06-05 20:08:01,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:01,315 INFO L482 AbstractCegarLoop]: Abstraction has 10225 states and 27588 transitions. [2021-06-05 20:08:01,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:01,315 INFO L276 IsEmpty]: Start isEmpty. Operand 10225 states and 27588 transitions. [2021-06-05 20:08:01,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:01,325 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:01,325 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] [2021-06-05 20:08:01,325 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-06-05 20:08:01,325 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 20:08:01,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:01,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1304770668, now seen corresponding path program 190 times [2021-06-05 20:08:01,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:01,326 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677056180] [2021-06-05 20:08:01,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:01,647 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 20:08:01,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:01,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677056180] [2021-06-05 20:08:01,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677056180] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:01,647 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:01,647 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:01,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453789047] [2021-06-05 20:08:01,648 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:01,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:01,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:01,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:01,648 INFO L87 Difference]: Start difference. First operand 10225 states and 27588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:02,406 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:02,554 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:08:02,768 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:02,983 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:03,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:03,128 INFO L93 Difference]: Finished difference Result 16133 states and 42977 transitions. [2021-06-05 20:08:03,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:03,129 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:03,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:03,146 INFO L225 Difference]: With dead ends: 16133 [2021-06-05 20:08:03,146 INFO L226 Difference]: Without dead ends: 16133 [2021-06-05 20:08:03,147 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1368.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:03,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16133 states. [2021-06-05 20:08:03,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16133 to 10109. [2021-06-05 20:08:03,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.694963886415356) internal successors, (27238), 10108 states have internal predecessors, (27238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:03,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27238 transitions. [2021-06-05 20:08:03,313 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27238 transitions. Word has length 114 [2021-06-05 20:08:03,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:03,314 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27238 transitions. [2021-06-05 20:08:03,314 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:03,314 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27238 transitions. [2021-06-05 20:08:03,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:03,324 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:03,324 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, 1] [2021-06-05 20:08:03,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-06-05 20:08:03,324 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 20:08:03,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:03,325 INFO L82 PathProgramCache]: Analyzing trace with hash -800643412, now seen corresponding path program 191 times [2021-06-05 20:08:03,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:03,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163515511] [2021-06-05 20:08:03,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:03,659 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 20:08:03,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:03,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163515511] [2021-06-05 20:08:03,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163515511] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:03,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:03,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:03,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259608089] [2021-06-05 20:08:03,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:03,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:03,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:03,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:03,660 INFO L87 Difference]: Start difference. First operand 10109 states and 27238 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:04,426 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:04,576 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:08:04,764 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:04,961 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:05,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:05,129 INFO L93 Difference]: Finished difference Result 18825 states and 50058 transitions. [2021-06-05 20:08:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:05,130 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:05,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:05,150 INFO L225 Difference]: With dead ends: 18825 [2021-06-05 20:08:05,150 INFO L226 Difference]: Without dead ends: 18825 [2021-06-05 20:08:05,150 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1337.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:05,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18825 states. [2021-06-05 20:08:05,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18825 to 10189. [2021-06-05 20:08:05,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:05,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-06-05 20:08:05,333 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-06-05 20:08:05,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:05,333 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-06-05 20:08:05,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:05,333 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-06-05 20:08:05,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:05,343 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:05,343 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] [2021-06-05 20:08:05,343 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-06-05 20:08:05,343 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 20:08:05,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:05,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1112593324, now seen corresponding path program 192 times [2021-06-05 20:08:05,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:05,343 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472056081] [2021-06-05 20:08:05,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:05,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:05,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:05,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472056081] [2021-06-05 20:08:05,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472056081] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:05,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:05,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:05,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997308209] [2021-06-05 20:08:05,666 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:05,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:05,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:05,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:05,667 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:06,454 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:06,630 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:06,806 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:07,008 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:07,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:07,189 INFO L93 Difference]: Finished difference Result 21353 states and 56607 transitions. [2021-06-05 20:08:07,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:07,189 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:07,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:07,212 INFO L225 Difference]: With dead ends: 21353 [2021-06-05 20:08:07,212 INFO L226 Difference]: Without dead ends: 21353 [2021-06-05 20:08:07,212 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1341.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:07,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21353 states. [2021-06-05 20:08:07,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21353 to 10205. [2021-06-05 20:08:07,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10205 states, 10203 states have (on average 2.6966578457316475) internal successors, (27514), 10204 states have internal predecessors, (27514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:07,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10205 states to 10205 states and 27514 transitions. [2021-06-05 20:08:07,421 INFO L78 Accepts]: Start accepts. Automaton has 10205 states and 27514 transitions. Word has length 114 [2021-06-05 20:08:07,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:07,422 INFO L482 AbstractCegarLoop]: Abstraction has 10205 states and 27514 transitions. [2021-06-05 20:08:07,422 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:07,422 INFO L276 IsEmpty]: Start isEmpty. Operand 10205 states and 27514 transitions. [2021-06-05 20:08:07,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:07,431 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:07,431 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] [2021-06-05 20:08:07,431 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-06-05 20:08:07,432 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 20:08:07,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:07,432 INFO L82 PathProgramCache]: Analyzing trace with hash 24120138, now seen corresponding path program 193 times [2021-06-05 20:08:07,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:07,432 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226485899] [2021-06-05 20:08:07,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:07,758 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 20:08:07,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:07,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226485899] [2021-06-05 20:08:07,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226485899] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:07,758 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:07,758 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:07,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739187108] [2021-06-05 20:08:07,758 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:07,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:07,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:07,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:07,759 INFO L87 Difference]: Start difference. First operand 10205 states and 27514 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:08,303 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-06-05 20:08:08,574 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:08,750 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:08,941 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:08:09,139 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:08:09,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:09,317 INFO L93 Difference]: Finished difference Result 19693 states and 52007 transitions. [2021-06-05 20:08:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:09,317 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:09,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:09,339 INFO L225 Difference]: With dead ends: 19693 [2021-06-05 20:08:09,340 INFO L226 Difference]: Without dead ends: 19693 [2021-06-05 20:08:09,340 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1384.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:09,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19693 states. [2021-06-05 20:08:09,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19693 to 10157. [2021-06-05 20:08:09,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.695814869522403) internal successors, (27376), 10156 states have internal predecessors, (27376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:09,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27376 transitions. [2021-06-05 20:08:09,536 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27376 transitions. Word has length 114 [2021-06-05 20:08:09,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:09,536 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27376 transitions. [2021-06-05 20:08:09,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:09,536 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27376 transitions. [2021-06-05 20:08:09,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:09,545 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:09,546 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] [2021-06-05 20:08:09,546 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-06-05 20:08:09,546 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 20:08:09,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:09,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1434339948, now seen corresponding path program 194 times [2021-06-05 20:08:09,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:09,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223261431] [2021-06-05 20:08:09,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:09,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:09,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:09,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223261431] [2021-06-05 20:08:09,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223261431] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:09,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:09,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:09,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073486984] [2021-06-05 20:08:09,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:09,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:09,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:09,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:09,861 INFO L87 Difference]: Start difference. First operand 10157 states and 27376 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:10,659 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:08:10,818 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:10,995 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:11,192 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:11,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:11,364 INFO L93 Difference]: Finished difference Result 18931 states and 50224 transitions. [2021-06-05 20:08:11,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:11,364 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:11,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:11,384 INFO L225 Difference]: With dead ends: 18931 [2021-06-05 20:08:11,384 INFO L226 Difference]: Without dead ends: 18931 [2021-06-05 20:08:11,385 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1328.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:11,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18931 states. [2021-06-05 20:08:11,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18931 to 10189. [2021-06-05 20:08:11,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:11,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-06-05 20:08:11,576 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-06-05 20:08:11,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:11,576 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-06-05 20:08:11,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:11,576 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-06-05 20:08:11,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:11,586 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:11,586 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] [2021-06-05 20:08:11,586 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-06-05 20:08:11,586 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 20:08:11,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:11,587 INFO L82 PathProgramCache]: Analyzing trace with hash 345866762, now seen corresponding path program 195 times [2021-06-05 20:08:11,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:11,587 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971006103] [2021-06-05 20:08:11,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:11,901 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 20:08:11,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:11,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971006103] [2021-06-05 20:08:11,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971006103] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:11,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:11,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:11,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781006729] [2021-06-05 20:08:11,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:11,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:11,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:11,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:11,902 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:12,696 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:08:12,855 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:13,046 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:08:13,240 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:08:13,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:13,421 INFO L93 Difference]: Finished difference Result 19744 states and 52028 transitions. [2021-06-05 20:08:13,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:13,421 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:13,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:13,441 INFO L225 Difference]: With dead ends: 19744 [2021-06-05 20:08:13,441 INFO L226 Difference]: Without dead ends: 19744 [2021-06-05 20:08:13,441 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1340.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:13,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19744 states. [2021-06-05 20:08:13,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19744 to 10173. [2021-06-05 20:08:13,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10173 states, 10171 states have (on average 2.6960967456493954) internal successors, (27422), 10172 states have internal predecessors, (27422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:13,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10173 states to 10173 states and 27422 transitions. [2021-06-05 20:08:13,637 INFO L78 Accepts]: Start accepts. Automaton has 10173 states and 27422 transitions. Word has length 114 [2021-06-05 20:08:13,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:13,637 INFO L482 AbstractCegarLoop]: Abstraction has 10173 states and 27422 transitions. [2021-06-05 20:08:13,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:13,637 INFO L276 IsEmpty]: Start isEmpty. Operand 10173 states and 27422 transitions. [2021-06-05 20:08:13,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:13,647 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:13,647 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] [2021-06-05 20:08:13,647 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-06-05 20:08:13,647 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 20:08:13,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:13,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1143730222, now seen corresponding path program 196 times [2021-06-05 20:08:13,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:13,647 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708806251] [2021-06-05 20:08:13,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:14,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:14,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:14,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708806251] [2021-06-05 20:08:14,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708806251] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:14,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:14,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:14,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357069357] [2021-06-05 20:08:14,014 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:14,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:14,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:14,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:14,015 INFO L87 Difference]: Start difference. First operand 10173 states and 27422 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:14,544 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-06-05 20:08:14,719 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 20:08:14,910 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:08:15,066 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:15,249 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:08:15,440 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:08:15,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:15,588 INFO L93 Difference]: Finished difference Result 19070 states and 50441 transitions. [2021-06-05 20:08:15,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:15,589 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:15,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:15,609 INFO L225 Difference]: With dead ends: 19070 [2021-06-05 20:08:15,609 INFO L226 Difference]: Without dead ends: 19070 [2021-06-05 20:08:15,609 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1451.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:15,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19070 states. [2021-06-05 20:08:15,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19070 to 10189. [2021-06-05 20:08:15,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:15,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-06-05 20:08:15,802 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-06-05 20:08:15,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:15,802 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-06-05 20:08:15,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:15,803 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-06-05 20:08:15,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:15,813 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:15,813 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] [2021-06-05 20:08:15,813 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-06-05 20:08:15,813 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 20:08:15,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:15,813 INFO L82 PathProgramCache]: Analyzing trace with hash 895183242, now seen corresponding path program 197 times [2021-06-05 20:08:15,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:15,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975096687] [2021-06-05 20:08:15,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:16,119 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 20:08:16,120 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:16,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975096687] [2021-06-05 20:08:16,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975096687] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:16,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:16,120 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:16,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501105999] [2021-06-05 20:08:16,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:16,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:16,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:16,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:16,120 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:16,887 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:08:17,046 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:17,221 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:17,416 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:17,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:17,560 INFO L93 Difference]: Finished difference Result 16417 states and 43681 transitions. [2021-06-05 20:08:17,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:17,560 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:17,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:17,578 INFO L225 Difference]: With dead ends: 16417 [2021-06-05 20:08:17,578 INFO L226 Difference]: Without dead ends: 16417 [2021-06-05 20:08:17,578 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1324.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:17,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16417 states. [2021-06-05 20:08:17,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16417 to 10125. [2021-06-05 20:08:17,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6952484441371136) internal successors, (27284), 10124 states have internal predecessors, (27284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:17,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27284 transitions. [2021-06-05 20:08:17,743 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27284 transitions. Word has length 114 [2021-06-05 20:08:17,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:17,744 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27284 transitions. [2021-06-05 20:08:17,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:17,744 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27284 transitions. [2021-06-05 20:08:17,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:17,753 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:17,754 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] [2021-06-05 20:08:17,754 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-06-05 20:08:17,754 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 20:08:17,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:17,754 INFO L82 PathProgramCache]: Analyzing trace with hash -895321650, now seen corresponding path program 198 times [2021-06-05 20:08:17,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:17,754 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247030422] [2021-06-05 20:08:17,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:18,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:18,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:18,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247030422] [2021-06-05 20:08:18,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247030422] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:18,133 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:18,133 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:18,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216190981] [2021-06-05 20:08:18,133 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:18,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:18,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:18,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:18,133 INFO L87 Difference]: Start difference. First operand 10125 states and 27284 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:18,952 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:19,108 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:08:19,308 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:19,511 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:19,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:19,743 INFO L93 Difference]: Finished difference Result 21630 states and 57430 transitions. [2021-06-05 20:08:19,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:19,744 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:19,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:19,763 INFO L225 Difference]: With dead ends: 21630 [2021-06-05 20:08:19,763 INFO L226 Difference]: Without dead ends: 21630 [2021-06-05 20:08:19,763 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1410.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:19,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21630 states. [2021-06-05 20:08:19,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21630 to 10173. [2021-06-05 20:08:19,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10173 states, 10171 states have (on average 2.6960967456493954) internal successors, (27422), 10172 states have internal predecessors, (27422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:19,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10173 states to 10173 states and 27422 transitions. [2021-06-05 20:08:19,947 INFO L78 Accepts]: Start accepts. Automaton has 10173 states and 27422 transitions. Word has length 114 [2021-06-05 20:08:19,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:19,947 INFO L482 AbstractCegarLoop]: Abstraction has 10173 states and 27422 transitions. [2021-06-05 20:08:19,947 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:19,947 INFO L276 IsEmpty]: Start isEmpty. Operand 10173 states and 27422 transitions. [2021-06-05 20:08:19,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:19,957 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:19,957 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] [2021-06-05 20:08:19,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-06-05 20:08:19,957 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 20:08:19,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:19,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1017915086, now seen corresponding path program 199 times [2021-06-05 20:08:19,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:19,957 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491685841] [2021-06-05 20:08:19,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:20,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:20,291 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:20,291 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491685841] [2021-06-05 20:08:20,291 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491685841] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:20,291 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:20,291 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:20,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556259812] [2021-06-05 20:08:20,291 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:20,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:20,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:20,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:20,292 INFO L87 Difference]: Start difference. First operand 10173 states and 27422 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:21,079 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:21,261 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:21,446 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:21,649 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:21,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:21,831 INFO L93 Difference]: Finished difference Result 21702 states and 57562 transitions. [2021-06-05 20:08:21,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:21,832 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:21,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:21,855 INFO L225 Difference]: With dead ends: 21702 [2021-06-05 20:08:21,855 INFO L226 Difference]: Without dead ends: 21702 [2021-06-05 20:08:21,855 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1357.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:21,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21702 states. [2021-06-05 20:08:22,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21702 to 10189. [2021-06-05 20:08:22,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:22,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-06-05 20:08:22,055 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-06-05 20:08:22,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:22,055 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-06-05 20:08:22,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:22,055 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-06-05 20:08:22,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:22,064 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:22,064 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] [2021-06-05 20:08:22,064 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-06-05 20:08:22,065 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 20:08:22,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:22,065 INFO L82 PathProgramCache]: Analyzing trace with hash -70558100, now seen corresponding path program 200 times [2021-06-05 20:08:22,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:22,065 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493267974] [2021-06-05 20:08:22,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:22,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:22,403 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:22,403 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493267974] [2021-06-05 20:08:22,403 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493267974] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:22,403 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:22,403 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:22,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406658649] [2021-06-05 20:08:22,403 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:22,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:22,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:22,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:22,403 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:23,179 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:23,354 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:23,543 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:08:23,738 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:08:23,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:23,906 INFO L93 Difference]: Finished difference Result 21112 states and 55640 transitions. [2021-06-05 20:08:23,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:23,906 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:23,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:23,929 INFO L225 Difference]: With dead ends: 21112 [2021-06-05 20:08:23,929 INFO L226 Difference]: Without dead ends: 21112 [2021-06-05 20:08:23,929 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1360.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:23,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21112 states. [2021-06-05 20:08:24,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21112 to 10141. [2021-06-05 20:08:24,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.695532103757767) internal successors, (27330), 10140 states have internal predecessors, (27330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:24,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27330 transitions. [2021-06-05 20:08:24,127 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27330 transitions. Word has length 114 [2021-06-05 20:08:24,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:24,127 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27330 transitions. [2021-06-05 20:08:24,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:24,127 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27330 transitions. [2021-06-05 20:08:24,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:24,136 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:24,136 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] [2021-06-05 20:08:24,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-06-05 20:08:24,136 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 20:08:24,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:24,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1274138964, now seen corresponding path program 201 times [2021-06-05 20:08:24,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:24,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884011926] [2021-06-05 20:08:24,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:24,549 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 20:08:24,549 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:24,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884011926] [2021-06-05 20:08:24,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884011926] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:24,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:24,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:24,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081477231] [2021-06-05 20:08:24,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:24,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:24,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:24,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:24,550 INFO L87 Difference]: Start difference. First operand 10141 states and 27330 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:25,229 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-06-05 20:08:25,365 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:08:25,516 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:08:25,730 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:25,931 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:26,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:26,093 INFO L93 Difference]: Finished difference Result 17652 states and 46779 transitions. [2021-06-05 20:08:26,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:26,093 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:26,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:26,113 INFO L225 Difference]: With dead ends: 17652 [2021-06-05 20:08:26,113 INFO L226 Difference]: Without dead ends: 17652 [2021-06-05 20:08:26,113 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1436.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:26,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17652 states. [2021-06-05 20:08:26,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17652 to 10109. [2021-06-05 20:08:26,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.694963886415356) internal successors, (27238), 10108 states have internal predecessors, (27238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:26,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27238 transitions. [2021-06-05 20:08:26,298 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27238 transitions. Word has length 114 [2021-06-05 20:08:26,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:26,299 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27238 transitions. [2021-06-05 20:08:26,299 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:26,299 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27238 transitions. [2021-06-05 20:08:26,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:26,308 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:26,308 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] [2021-06-05 20:08:26,308 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-06-05 20:08:26,309 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 20:08:26,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:26,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1301223958, now seen corresponding path program 202 times [2021-06-05 20:08:26,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:26,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363277745] [2021-06-05 20:08:26,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:26,660 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 20:08:26,661 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:26,661 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363277745] [2021-06-05 20:08:26,661 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363277745] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:26,661 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:26,661 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:26,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931437218] [2021-06-05 20:08:26,661 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:26,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:26,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:26,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:26,661 INFO L87 Difference]: Start difference. First operand 10109 states and 27238 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:27,429 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:27,579 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:08:27,772 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:27,970 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:28,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:28,125 INFO L93 Difference]: Finished difference Result 16881 states and 45203 transitions. [2021-06-05 20:08:28,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:28,125 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:28,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:28,144 INFO L225 Difference]: With dead ends: 16881 [2021-06-05 20:08:28,144 INFO L226 Difference]: Without dead ends: 16881 [2021-06-05 20:08:28,144 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1358.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:28,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16881 states. [2021-06-05 20:08:28,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16881 to 10157. [2021-06-05 20:08:28,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.695814869522403) internal successors, (27376), 10156 states have internal predecessors, (27376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:28,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27376 transitions. [2021-06-05 20:08:28,314 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27376 transitions. Word has length 114 [2021-06-05 20:08:28,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:28,314 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27376 transitions. [2021-06-05 20:08:28,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:28,315 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27376 transitions. [2021-06-05 20:08:28,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:28,324 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:28,324 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, 1] [2021-06-05 20:08:28,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-06-05 20:08:28,324 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 20:08:28,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:28,324 INFO L82 PathProgramCache]: Analyzing trace with hash 612012778, now seen corresponding path program 203 times [2021-06-05 20:08:28,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:28,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106861308] [2021-06-05 20:08:28,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:28,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:28,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:28,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106861308] [2021-06-05 20:08:28,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106861308] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:28,775 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:28,775 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:28,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320702422] [2021-06-05 20:08:28,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:28,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:28,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:28,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:28,775 INFO L87 Difference]: Start difference. First operand 10157 states and 27376 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:29,544 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:29,721 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:29,898 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:30,095 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:30,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:30,248 INFO L93 Difference]: Finished difference Result 16953 states and 45335 transitions. [2021-06-05 20:08:30,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:30,249 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:30,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:30,268 INFO L225 Difference]: With dead ends: 16953 [2021-06-05 20:08:30,268 INFO L226 Difference]: Without dead ends: 16953 [2021-06-05 20:08:30,268 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1454.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:30,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16953 states. [2021-06-05 20:08:30,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16953 to 10173. [2021-06-05 20:08:30,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10173 states, 10171 states have (on average 2.6960967456493954) internal successors, (27422), 10172 states have internal predecessors, (27422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:30,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10173 states to 10173 states and 27422 transitions. [2021-06-05 20:08:30,438 INFO L78 Accepts]: Start accepts. Automaton has 10173 states and 27422 transitions. Word has length 114 [2021-06-05 20:08:30,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:30,439 INFO L482 AbstractCegarLoop]: Abstraction has 10173 states and 27422 transitions. [2021-06-05 20:08:30,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:30,439 INFO L276 IsEmpty]: Start isEmpty. Operand 10173 states and 27422 transitions. [2021-06-05 20:08:30,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:30,448 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:30,448 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] [2021-06-05 20:08:30,448 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-06-05 20:08:30,448 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 20:08:30,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:30,448 INFO L82 PathProgramCache]: Analyzing trace with hash -476460408, now seen corresponding path program 204 times [2021-06-05 20:08:30,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:30,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112164363] [2021-06-05 20:08:30,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:30,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:30,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:30,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112164363] [2021-06-05 20:08:30,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112164363] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:30,856 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:30,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:30,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910060612] [2021-06-05 20:08:30,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:30,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:30,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:30,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:30,857 INFO L87 Difference]: Start difference. First operand 10173 states and 27422 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:31,645 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:31,824 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:32,018 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:08:32,213 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:08:32,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:32,373 INFO L93 Difference]: Finished difference Result 16363 states and 43413 transitions. [2021-06-05 20:08:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:32,374 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:32,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:32,391 INFO L225 Difference]: With dead ends: 16363 [2021-06-05 20:08:32,391 INFO L226 Difference]: Without dead ends: 16363 [2021-06-05 20:08:32,392 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1434.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:32,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16363 states. [2021-06-05 20:08:32,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16363 to 10125. [2021-06-05 20:08:32,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6952484441371136) internal successors, (27284), 10124 states have internal predecessors, (27284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:32,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27284 transitions. [2021-06-05 20:08:32,551 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27284 transitions. Word has length 114 [2021-06-05 20:08:32,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:32,551 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27284 transitions. [2021-06-05 20:08:32,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:32,551 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27284 transitions. [2021-06-05 20:08:32,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:32,561 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:32,561 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] [2021-06-05 20:08:32,561 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-06-05 20:08:32,561 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 20:08:32,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:32,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1680041272, now seen corresponding path program 205 times [2021-06-05 20:08:32,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:32,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470013581] [2021-06-05 20:08:32,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:32,926 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 20:08:32,926 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:32,926 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470013581] [2021-06-05 20:08:32,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470013581] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:32,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:32,926 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:32,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125687628] [2021-06-05 20:08:32,926 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:32,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:32,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:32,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:32,927 INFO L87 Difference]: Start difference. First operand 10125 states and 27284 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:33,713 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:08:33,863 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:08:34,065 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:34,267 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:34,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:34,418 INFO L93 Difference]: Finished difference Result 16433 states and 43723 transitions. [2021-06-05 20:08:34,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:34,419 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:34,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:34,436 INFO L225 Difference]: With dead ends: 16433 [2021-06-05 20:08:34,436 INFO L226 Difference]: Without dead ends: 16433 [2021-06-05 20:08:34,437 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1365.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:34,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16433 states. [2021-06-05 20:08:34,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16433 to 10109. [2021-06-05 20:08:34,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.694963886415356) internal successors, (27238), 10108 states have internal predecessors, (27238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:34,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27238 transitions. [2021-06-05 20:08:34,604 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27238 transitions. Word has length 114 [2021-06-05 20:08:34,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:34,604 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27238 transitions. [2021-06-05 20:08:34,604 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:34,604 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27238 transitions. [2021-06-05 20:08:34,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:34,613 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:34,614 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] [2021-06-05 20:08:34,614 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-06-05 20:08:34,614 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 20:08:34,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:34,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1339796914, now seen corresponding path program 206 times [2021-06-05 20:08:34,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:34,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596019524] [2021-06-05 20:08:34,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:34,979 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 20:08:34,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:34,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596019524] [2021-06-05 20:08:34,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596019524] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:34,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:34,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:34,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247198258] [2021-06-05 20:08:34,980 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:34,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:34,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:34,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:34,980 INFO L87 Difference]: Start difference. First operand 10109 states and 27238 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:35,741 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:08:35,893 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:08:36,090 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:36,289 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:36,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:36,439 INFO L93 Difference]: Finished difference Result 13188 states and 35239 transitions. [2021-06-05 20:08:36,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:36,440 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:36,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:36,454 INFO L225 Difference]: With dead ends: 13188 [2021-06-05 20:08:36,454 INFO L226 Difference]: Without dead ends: 13188 [2021-06-05 20:08:36,454 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1356.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:36,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13188 states. [2021-06-05 20:08:36,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13188 to 9965. [2021-06-05 20:08:36,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6917595101876945) internal successors, (26818), 9964 states have internal predecessors, (26818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:36,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26818 transitions. [2021-06-05 20:08:36,628 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26818 transitions. Word has length 114 [2021-06-05 20:08:36,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:36,628 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26818 transitions. [2021-06-05 20:08:36,628 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:36,628 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26818 transitions. [2021-06-05 20:08:36,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:36,637 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:36,637 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] [2021-06-05 20:08:36,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-06-05 20:08:36,638 INFO L430 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:36,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:36,638 INFO L82 PathProgramCache]: Analyzing trace with hash 769875980, now seen corresponding path program 207 times [2021-06-05 20:08:36,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:36,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445208595] [2021-06-05 20:08:36,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:36,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:36,963 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:36,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445208595] [2021-06-05 20:08:36,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445208595] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:36,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:36,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:36,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945458457] [2021-06-05 20:08:36,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:36,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:36,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:36,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:36,964 INFO L87 Difference]: Start difference. First operand 9965 states and 26818 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:37,739 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:37,889 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:08:38,079 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:38,276 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:38,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:38,453 INFO L93 Difference]: Finished difference Result 23830 states and 63033 transitions. [2021-06-05 20:08:38,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:38,453 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:38,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:38,479 INFO L225 Difference]: With dead ends: 23830 [2021-06-05 20:08:38,479 INFO L226 Difference]: Without dead ends: 23830 [2021-06-05 20:08:38,480 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1330.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:38,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23830 states. [2021-06-05 20:08:38,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23830 to 10093. [2021-06-05 20:08:38,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:38,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-05 20:08:38,712 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-05 20:08:38,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:38,712 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-05 20:08:38,712 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:38,712 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-05 20:08:38,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:38,722 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:38,722 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] [2021-06-05 20:08:38,722 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-06-05 20:08:38,722 INFO L430 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:38,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:38,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1611854580, now seen corresponding path program 208 times [2021-06-05 20:08:38,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:38,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250987490] [2021-06-05 20:08:38,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:39,045 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 20:08:39,045 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:39,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250987490] [2021-06-05 20:08:39,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250987490] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:39,045 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:39,045 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:39,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887304646] [2021-06-05 20:08:39,045 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:39,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:39,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:39,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:39,046 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:39,822 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:39,999 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:40,176 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:40,373 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:40,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:40,555 INFO L93 Difference]: Finished difference Result 26358 states and 69582 transitions. [2021-06-05 20:08:40,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:40,555 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:40,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:40,585 INFO L225 Difference]: With dead ends: 26358 [2021-06-05 20:08:40,585 INFO L226 Difference]: Without dead ends: 26358 [2021-06-05 20:08:40,585 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1344.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:40,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26358 states. [2021-06-05 20:08:40,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26358 to 10109. [2021-06-05 20:08:40,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:40,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-06-05 20:08:40,824 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-06-05 20:08:40,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:40,824 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-06-05 20:08:40,824 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:40,824 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-06-05 20:08:40,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:40,833 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:40,833 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] [2021-06-05 20:08:40,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-06-05 20:08:40,834 INFO L430 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:40,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:40,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1594639530, now seen corresponding path program 209 times [2021-06-05 20:08:40,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:40,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179811836] [2021-06-05 20:08:40,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:41,162 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 20:08:41,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:41,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179811836] [2021-06-05 20:08:41,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179811836] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:41,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:41,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:41,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797109785] [2021-06-05 20:08:41,162 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:41,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:41,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:41,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:41,163 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:41,933 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:42,137 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:42,323 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:08:42,516 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:08:42,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:42,683 INFO L93 Difference]: Finished difference Result 24698 states and 64982 transitions. [2021-06-05 20:08:42,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:42,684 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:42,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:42,711 INFO L225 Difference]: With dead ends: 24698 [2021-06-05 20:08:42,711 INFO L226 Difference]: Without dead ends: 24698 [2021-06-05 20:08:42,711 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1381.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:42,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24698 states. [2021-06-05 20:08:42,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24698 to 10061. [2021-06-05 20:08:42,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10061 states, 10059 states have (on average 2.6935083010239587) internal successors, (27094), 10060 states have internal predecessors, (27094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:42,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 27094 transitions. [2021-06-05 20:08:42,936 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 27094 transitions. Word has length 114 [2021-06-05 20:08:42,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:42,936 INFO L482 AbstractCegarLoop]: Abstraction has 10061 states and 27094 transitions. [2021-06-05 20:08:42,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:42,936 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 27094 transitions. [2021-06-05 20:08:42,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:42,946 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:42,946 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] [2021-06-05 20:08:42,946 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-06-05 20:08:42,946 INFO L430 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:42,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:42,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1290107956, now seen corresponding path program 210 times [2021-06-05 20:08:42,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:42,946 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699188931] [2021-06-05 20:08:42,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:43,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:43,254 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:43,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699188931] [2021-06-05 20:08:43,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699188931] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:43,255 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:43,255 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:43,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852504852] [2021-06-05 20:08:43,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:43,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:43,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:43,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:43,255 INFO L87 Difference]: Start difference. First operand 10061 states and 27094 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:44,037 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:08:44,197 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:44,372 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:44,567 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:44,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:44,736 INFO L93 Difference]: Finished difference Result 23936 states and 63199 transitions. [2021-06-05 20:08:44,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:44,737 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:44,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:44,761 INFO L225 Difference]: With dead ends: 23936 [2021-06-05 20:08:44,761 INFO L226 Difference]: Without dead ends: 23936 [2021-06-05 20:08:44,761 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1327.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:44,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23936 states. [2021-06-05 20:08:44,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23936 to 10093. [2021-06-05 20:08:44,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:44,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-05 20:08:44,981 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-05 20:08:44,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:44,981 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-05 20:08:44,981 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:44,981 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-05 20:08:44,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:44,991 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:44,991 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] [2021-06-05 20:08:44,991 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-06-05 20:08:44,991 INFO L430 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:44,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:44,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1916386154, now seen corresponding path program 211 times [2021-06-05 20:08:44,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:44,991 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564908122] [2021-06-05 20:08:44,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:45,318 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 20:08:45,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:45,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564908122] [2021-06-05 20:08:45,319 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564908122] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:45,319 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:45,319 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:45,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834737515] [2021-06-05 20:08:45,319 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:45,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:45,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:45,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:45,319 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:46,122 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:08:46,283 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:46,478 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:08:46,672 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:08:46,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:46,868 INFO L93 Difference]: Finished difference Result 24749 states and 65003 transitions. [2021-06-05 20:08:46,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:46,868 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:46,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:46,897 INFO L225 Difference]: With dead ends: 24749 [2021-06-05 20:08:46,897 INFO L226 Difference]: Without dead ends: 24749 [2021-06-05 20:08:46,897 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1338.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:46,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24749 states. [2021-06-05 20:08:47,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24749 to 10077. [2021-06-05 20:08:47,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:47,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-06-05 20:08:47,127 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-06-05 20:08:47,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:47,127 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-06-05 20:08:47,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:47,128 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-06-05 20:08:47,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:47,137 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:47,137 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] [2021-06-05 20:08:47,137 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-06-05 20:08:47,137 INFO L430 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:47,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:47,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1580717682, now seen corresponding path program 212 times [2021-06-05 20:08:47,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:47,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863332394] [2021-06-05 20:08:47,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:47,514 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 20:08:47,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:47,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863332394] [2021-06-05 20:08:47,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863332394] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:47,514 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:47,514 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:47,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479212557] [2021-06-05 20:08:47,514 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:47,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:47,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:47,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:47,515 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:48,315 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:08:48,489 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:48,676 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:08:48,872 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:08:49,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:49,056 INFO L93 Difference]: Finished difference Result 24075 states and 63416 transitions. [2021-06-05 20:08:49,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:49,057 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:49,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:49,082 INFO L225 Difference]: With dead ends: 24075 [2021-06-05 20:08:49,083 INFO L226 Difference]: Without dead ends: 24075 [2021-06-05 20:08:49,083 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1344.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:49,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24075 states. [2021-06-05 20:08:49,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24075 to 10093. [2021-06-05 20:08:49,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:49,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-05 20:08:49,317 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-05 20:08:49,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:49,317 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-05 20:08:49,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:49,317 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-05 20:08:49,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:49,327 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:49,327 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] [2021-06-05 20:08:49,327 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-06-05 20:08:49,327 INFO L430 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:49,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:49,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1829264662, now seen corresponding path program 213 times [2021-06-05 20:08:49,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:49,327 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63601409] [2021-06-05 20:08:49,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:49,631 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 20:08:49,631 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:49,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63601409] [2021-06-05 20:08:49,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63601409] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:49,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:49,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:49,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050120725] [2021-06-05 20:08:49,632 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:49,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:49,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:49,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:49,632 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:50,427 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:08:50,589 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:50,764 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:50,959 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:51,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:51,130 INFO L93 Difference]: Finished difference Result 21422 states and 56656 transitions. [2021-06-05 20:08:51,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:51,131 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:51,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:51,153 INFO L225 Difference]: With dead ends: 21422 [2021-06-05 20:08:51,153 INFO L226 Difference]: Without dead ends: 21422 [2021-06-05 20:08:51,154 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1319.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:51,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21422 states. [2021-06-05 20:08:51,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21422 to 10029. [2021-06-05 20:08:51,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10029 states, 10027 states have (on average 2.6929290914530766) internal successors, (27002), 10028 states have internal predecessors, (27002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:51,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10029 states to 10029 states and 27002 transitions. [2021-06-05 20:08:51,358 INFO L78 Accepts]: Start accepts. Automaton has 10029 states and 27002 transitions. Word has length 114 [2021-06-05 20:08:51,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:51,358 INFO L482 AbstractCegarLoop]: Abstraction has 10029 states and 27002 transitions. [2021-06-05 20:08:51,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:51,358 INFO L276 IsEmpty]: Start isEmpty. Operand 10029 states and 27002 transitions. [2021-06-05 20:08:51,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:51,368 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:51,368 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] [2021-06-05 20:08:51,368 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-06-05 20:08:51,368 INFO L430 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:51,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:51,368 INFO L82 PathProgramCache]: Analyzing trace with hash 675197742, now seen corresponding path program 214 times [2021-06-05 20:08:51,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:51,369 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46484984] [2021-06-05 20:08:51,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:51,709 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 20:08:51,709 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:51,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46484984] [2021-06-05 20:08:51,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46484984] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:51,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:51,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:51,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533939280] [2021-06-05 20:08:51,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:51,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:51,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:51,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:51,710 INFO L87 Difference]: Start difference. First operand 10029 states and 27002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:52,510 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:52,664 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:08:52,866 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:53,096 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:53,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:53,275 INFO L93 Difference]: Finished difference Result 22558 states and 59948 transitions. [2021-06-05 20:08:53,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:53,275 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:53,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:53,299 INFO L225 Difference]: With dead ends: 22558 [2021-06-05 20:08:53,299 INFO L226 Difference]: Without dead ends: 22558 [2021-06-05 20:08:53,299 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1378.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:53,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22558 states. [2021-06-05 20:08:53,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22558 to 10077. [2021-06-05 20:08:53,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:53,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-06-05 20:08:53,503 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-06-05 20:08:53,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:53,503 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-06-05 20:08:53,503 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:53,503 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-06-05 20:08:53,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:53,512 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:53,512 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] [2021-06-05 20:08:53,512 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-06-05 20:08:53,512 INFO L430 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:53,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:53,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1706532818, now seen corresponding path program 215 times [2021-06-05 20:08:53,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:53,513 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485434459] [2021-06-05 20:08:53,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:53,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:53,846 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:53,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485434459] [2021-06-05 20:08:53,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485434459] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:53,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:53,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:53,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683246812] [2021-06-05 20:08:53,847 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:53,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:53,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:53,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:53,847 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:54,647 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:54,832 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:55,012 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:55,211 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:55,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:55,393 INFO L93 Difference]: Finished difference Result 22630 states and 60080 transitions. [2021-06-05 20:08:55,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:55,393 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:55,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:55,417 INFO L225 Difference]: With dead ends: 22630 [2021-06-05 20:08:55,417 INFO L226 Difference]: Without dead ends: 22630 [2021-06-05 20:08:55,417 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1350.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:55,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22630 states. [2021-06-05 20:08:55,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22630 to 10093. [2021-06-05 20:08:55,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:55,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-05 20:08:55,627 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-05 20:08:55,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:55,627 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-05 20:08:55,627 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:55,628 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-05 20:08:55,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:55,637 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:55,637 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] [2021-06-05 20:08:55,637 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-06-05 20:08:55,637 INFO L430 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:55,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:55,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1499961292, now seen corresponding path program 216 times [2021-06-05 20:08:55,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:55,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113380637] [2021-06-05 20:08:55,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:55,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:08:55,976 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:55,976 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113380637] [2021-06-05 20:08:55,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113380637] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:55,977 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:55,977 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:55,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249114420] [2021-06-05 20:08:55,977 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:55,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:55,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:55,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:55,977 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:56,748 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:08:56,927 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:08:57,118 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:08:57,312 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:08:57,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:57,477 INFO L93 Difference]: Finished difference Result 22040 states and 58158 transitions. [2021-06-05 20:08:57,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:57,477 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:57,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:57,500 INFO L225 Difference]: With dead ends: 22040 [2021-06-05 20:08:57,500 INFO L226 Difference]: Without dead ends: 22040 [2021-06-05 20:08:57,500 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1365.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:57,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22040 states. [2021-06-05 20:08:57,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22040 to 10045. [2021-06-05 20:08:57,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10045 states, 10043 states have (on average 2.6932191576222246) internal successors, (27048), 10044 states have internal predecessors, (27048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:57,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10045 states to 10045 states and 27048 transitions. [2021-06-05 20:08:57,704 INFO L78 Accepts]: Start accepts. Automaton has 10045 states and 27048 transitions. Word has length 114 [2021-06-05 20:08:57,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:57,704 INFO L482 AbstractCegarLoop]: Abstraction has 10045 states and 27048 transitions. [2021-06-05 20:08:57,704 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:57,704 INFO L276 IsEmpty]: Start isEmpty. Operand 10045 states and 27048 transitions. [2021-06-05 20:08:57,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:57,714 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:57,714 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] [2021-06-05 20:08:57,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-06-05 20:08:57,714 INFO L430 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:57,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:57,714 INFO L82 PathProgramCache]: Analyzing trace with hash 296380428, now seen corresponding path program 217 times [2021-06-05 20:08:57,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:57,714 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893701432] [2021-06-05 20:08:57,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:08:58,055 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 20:08:58,055 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:08:58,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893701432] [2021-06-05 20:08:58,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893701432] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:08:58,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:08:58,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:08:58,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624042683] [2021-06-05 20:08:58,055 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:08:58,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:08:58,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:08:58,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:08:58,056 INFO L87 Difference]: Start difference. First operand 10045 states and 27048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:58,876 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:08:59,026 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:08:59,228 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:08:59,446 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:08:59,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:08:59,615 INFO L93 Difference]: Finished difference Result 18928 states and 50149 transitions. [2021-06-05 20:08:59,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:08:59,615 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:08:59,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:08:59,636 INFO L225 Difference]: With dead ends: 18928 [2021-06-05 20:08:59,636 INFO L226 Difference]: Without dead ends: 18928 [2021-06-05 20:08:59,636 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1386.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:08:59,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18928 states. [2021-06-05 20:08:59,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18928 to 10013. [2021-06-05 20:08:59,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10013 states, 10011 states have (on average 2.6926380980920985) internal successors, (26956), 10012 states have internal predecessors, (26956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:59,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10013 states to 10013 states and 26956 transitions. [2021-06-05 20:08:59,817 INFO L78 Accepts]: Start accepts. Automaton has 10013 states and 26956 transitions. Word has length 114 [2021-06-05 20:08:59,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:08:59,817 INFO L482 AbstractCegarLoop]: Abstraction has 10013 states and 26956 transitions. [2021-06-05 20:08:59,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:08:59,817 INFO L276 IsEmpty]: Start isEmpty. Operand 10013 states and 26956 transitions. [2021-06-05 20:08:59,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:08:59,826 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:08:59,826 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] [2021-06-05 20:08:59,826 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-06-05 20:08:59,826 INFO L430 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:08:59,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:08:59,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1607896620, now seen corresponding path program 218 times [2021-06-05 20:08:59,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:08:59,827 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881827458] [2021-06-05 20:08:59,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:08:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:00,228 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 20:09:00,228 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:00,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881827458] [2021-06-05 20:09:00,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881827458] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:00,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:00,228 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:00,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444204658] [2021-06-05 20:09:00,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:00,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:00,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:00,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:00,229 INFO L87 Difference]: Start difference. First operand 10013 states and 26956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:01,011 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:09:01,161 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:09:01,354 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:01,555 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:01,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:01,730 INFO L93 Difference]: Finished difference Result 23328 states and 61469 transitions. [2021-06-05 20:09:01,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:01,730 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:01,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:01,754 INFO L225 Difference]: With dead ends: 23328 [2021-06-05 20:09:01,754 INFO L226 Difference]: Without dead ends: 23328 [2021-06-05 20:09:01,754 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1398.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:01,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23328 states. [2021-06-05 20:09:01,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23328 to 10141. [2021-06-05 20:09:01,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:01,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-05 20:09:01,973 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-05 20:09:01,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:01,974 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-05 20:09:01,974 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:01,974 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-05 20:09:01,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:01,983 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:01,983 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] [2021-06-05 20:09:01,983 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-06-05 20:09:01,983 INFO L430 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:01,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:01,984 INFO L82 PathProgramCache]: Analyzing trace with hash -773833940, now seen corresponding path program 219 times [2021-06-05 20:09:01,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:01,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959567054] [2021-06-05 20:09:01,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:02,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:02,319 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:02,319 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959567054] [2021-06-05 20:09:02,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959567054] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:02,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:02,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:02,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466046617] [2021-06-05 20:09:02,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:02,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:02,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:02,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:02,320 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:03,124 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:09:03,306 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:03,486 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:03,694 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:03,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:03,888 INFO L93 Difference]: Finished difference Result 25856 states and 68018 transitions. [2021-06-05 20:09:03,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:03,889 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:03,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:03,917 INFO L225 Difference]: With dead ends: 25856 [2021-06-05 20:09:03,917 INFO L226 Difference]: Without dead ends: 25856 [2021-06-05 20:09:03,917 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1355.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:03,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25856 states. [2021-06-05 20:09:04,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25856 to 10157. [2021-06-05 20:09:04,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:04,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-06-05 20:09:04,194 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-06-05 20:09:04,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:04,194 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-06-05 20:09:04,194 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:04,194 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-06-05 20:09:04,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:04,204 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:04,204 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] [2021-06-05 20:09:04,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-06-05 20:09:04,204 INFO L430 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:04,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:04,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1862307126, now seen corresponding path program 220 times [2021-06-05 20:09:04,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:04,204 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686308038] [2021-06-05 20:09:04,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:04,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:04,546 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:04,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686308038] [2021-06-05 20:09:04,546 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686308038] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:04,546 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:04,546 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:04,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008635869] [2021-06-05 20:09:04,546 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:04,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:04,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:04,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:04,547 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:05,347 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:09:05,528 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:05,726 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:09:05,928 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:09:06,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:06,113 INFO L93 Difference]: Finished difference Result 24196 states and 63418 transitions. [2021-06-05 20:09:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:06,114 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:06,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:06,138 INFO L225 Difference]: With dead ends: 24196 [2021-06-05 20:09:06,138 INFO L226 Difference]: Without dead ends: 24196 [2021-06-05 20:09:06,138 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1353.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:06,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24196 states. [2021-06-05 20:09:06,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24196 to 10109. [2021-06-05 20:09:06,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:06,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-06-05 20:09:06,354 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-06-05 20:09:06,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:06,354 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-06-05 20:09:06,354 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:06,354 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-06-05 20:09:06,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:06,363 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:06,363 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, 1] [2021-06-05 20:09:06,363 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-06-05 20:09:06,363 INFO L430 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:06,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:06,363 INFO L82 PathProgramCache]: Analyzing trace with hash -452087316, now seen corresponding path program 221 times [2021-06-05 20:09:06,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:06,363 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496662513] [2021-06-05 20:09:06,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:06,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:06,670 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:06,670 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496662513] [2021-06-05 20:09:06,670 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496662513] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:06,670 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:06,670 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:06,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715051943] [2021-06-05 20:09:06,670 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:06,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:06,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:06,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:06,670 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:07,459 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:07,619 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:07,795 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:07,991 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:08,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:08,175 INFO L93 Difference]: Finished difference Result 27186 states and 71197 transitions. [2021-06-05 20:09:08,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:08,175 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:08,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:08,204 INFO L225 Difference]: With dead ends: 27186 [2021-06-05 20:09:08,204 INFO L226 Difference]: Without dead ends: 27186 [2021-06-05 20:09:08,204 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1325.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:08,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27186 states. [2021-06-05 20:09:08,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27186 to 10141. [2021-06-05 20:09:08,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:08,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-05 20:09:08,453 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-05 20:09:08,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:08,453 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-05 20:09:08,453 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:08,453 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-05 20:09:08,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:08,464 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:08,464 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] [2021-06-05 20:09:08,464 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-06-05 20:09:08,464 INFO L430 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:08,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:08,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1540560502, now seen corresponding path program 222 times [2021-06-05 20:09:08,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:08,464 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207482518] [2021-06-05 20:09:08,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:08,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:08,778 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:08,778 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207482518] [2021-06-05 20:09:08,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207482518] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:08,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:08,779 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:08,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575810641] [2021-06-05 20:09:08,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:08,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:08,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:08,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:08,779 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:09,594 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:09,753 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:09,940 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:09:10,131 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:09:10,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:10,313 INFO L93 Difference]: Finished difference Result 27999 states and 73001 transitions. [2021-06-05 20:09:10,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:10,314 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:10,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:10,343 INFO L225 Difference]: With dead ends: 27999 [2021-06-05 20:09:10,343 INFO L226 Difference]: Without dead ends: 27999 [2021-06-05 20:09:10,343 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1366.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:10,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27999 states. [2021-06-05 20:09:10,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27999 to 10125. [2021-06-05 20:09:10,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:10,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-06-05 20:09:10,593 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-06-05 20:09:10,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:10,594 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-06-05 20:09:10,594 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:10,594 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-06-05 20:09:10,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:10,603 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:10,603 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] [2021-06-05 20:09:10,603 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-06-05 20:09:10,603 INFO L430 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:10,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:10,603 INFO L82 PathProgramCache]: Analyzing trace with hash -742697042, now seen corresponding path program 223 times [2021-06-05 20:09:10,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:10,604 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178160064] [2021-06-05 20:09:10,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:10,920 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 20:09:10,920 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:10,921 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178160064] [2021-06-05 20:09:10,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178160064] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:10,921 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:10,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:10,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151666460] [2021-06-05 20:09:10,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:10,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:10,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:10,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:10,921 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:11,698 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:11,857 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:12,041 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:09:12,236 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:09:12,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:12,419 INFO L93 Difference]: Finished difference Result 27325 states and 71414 transitions. [2021-06-05 20:09:12,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:12,419 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:12,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:12,451 INFO L225 Difference]: With dead ends: 27325 [2021-06-05 20:09:12,451 INFO L226 Difference]: Without dead ends: 27325 [2021-06-05 20:09:12,451 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1331.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:12,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27325 states. [2021-06-05 20:09:12,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27325 to 10141. [2021-06-05 20:09:12,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:12,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-05 20:09:12,685 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-05 20:09:12,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:12,685 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-05 20:09:12,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:12,685 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-05 20:09:12,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:12,695 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:12,695 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] [2021-06-05 20:09:12,695 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-06-05 20:09:12,695 INFO L430 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:12,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:12,695 INFO L82 PathProgramCache]: Analyzing trace with hash -991244022, now seen corresponding path program 224 times [2021-06-05 20:09:12,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:12,695 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890005142] [2021-06-05 20:09:12,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:13,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:13,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:13,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890005142] [2021-06-05 20:09:13,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890005142] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:13,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:13,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:13,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968087320] [2021-06-05 20:09:13,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:13,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:13,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:13,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:13,001 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:13,786 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:13,946 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:14,121 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:14,320 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:14,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:14,476 INFO L93 Difference]: Finished difference Result 24390 states and 63940 transitions. [2021-06-05 20:09:14,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:14,476 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:14,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:14,501 INFO L225 Difference]: With dead ends: 24390 [2021-06-05 20:09:14,501 INFO L226 Difference]: Without dead ends: 24390 [2021-06-05 20:09:14,501 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1327.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:14,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24390 states. [2021-06-05 20:09:14,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24390 to 10077. [2021-06-05 20:09:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:14,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-06-05 20:09:14,797 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-06-05 20:09:14,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:14,797 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-06-05 20:09:14,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:14,797 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-06-05 20:09:14,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:14,807 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:14,807 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] [2021-06-05 20:09:14,807 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-06-05 20:09:14,807 INFO L430 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:14,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:14,808 INFO L82 PathProgramCache]: Analyzing trace with hash -587289490, now seen corresponding path program 225 times [2021-06-05 20:09:14,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:14,808 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852163975] [2021-06-05 20:09:14,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:15,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:15,115 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:15,116 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852163975] [2021-06-05 20:09:15,116 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852163975] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:15,116 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:15,116 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:15,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968402342] [2021-06-05 20:09:15,116 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:15,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:15,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:15,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:15,116 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:15,924 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:16,088 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:16,267 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:16,464 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:16,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:16,641 INFO L93 Difference]: Finished difference Result 22906 states and 60279 transitions. [2021-06-05 20:09:16,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:16,641 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:16,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:16,664 INFO L225 Difference]: With dead ends: 22906 [2021-06-05 20:09:16,665 INFO L226 Difference]: Without dead ends: 22906 [2021-06-05 20:09:16,665 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1323.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:16,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22906 states. [2021-06-05 20:09:16,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22906 to 10141. [2021-06-05 20:09:16,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:16,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-05 20:09:16,873 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-05 20:09:16,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:16,873 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-05 20:09:16,873 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:16,873 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-05 20:09:16,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:16,882 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:16,883 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] [2021-06-05 20:09:16,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-06-05 20:09:16,883 INFO L430 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:16,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:16,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1675762676, now seen corresponding path program 226 times [2021-06-05 20:09:16,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:16,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550485373] [2021-06-05 20:09:16,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:17,193 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 20:09:17,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:17,193 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550485373] [2021-06-05 20:09:17,194 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550485373] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:17,194 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:17,194 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:17,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982672522] [2021-06-05 20:09:17,194 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:17,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:17,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:17,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:17,194 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:18,007 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:18,175 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:18,369 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:09:18,563 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:09:18,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:18,745 INFO L93 Difference]: Finished difference Result 23719 states and 62083 transitions. [2021-06-05 20:09:18,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:18,745 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:18,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:18,769 INFO L225 Difference]: With dead ends: 23719 [2021-06-05 20:09:18,769 INFO L226 Difference]: Without dead ends: 23719 [2021-06-05 20:09:18,769 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1344.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:18,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23719 states. [2021-06-05 20:09:18,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23719 to 10125. [2021-06-05 20:09:18,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:18,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-06-05 20:09:18,988 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-06-05 20:09:18,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:18,988 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-06-05 20:09:18,989 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:18,989 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-06-05 20:09:18,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:18,998 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:18,998 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] [2021-06-05 20:09:18,998 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-06-05 20:09:18,998 INFO L430 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:18,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:18,998 INFO L82 PathProgramCache]: Analyzing trace with hash -877899216, now seen corresponding path program 227 times [2021-06-05 20:09:18,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:18,999 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013785130] [2021-06-05 20:09:18,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:19,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:19,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013785130] [2021-06-05 20:09:19,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013785130] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:19,308 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:19,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:19,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229573508] [2021-06-05 20:09:19,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:19,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:19,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:19,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:19,308 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:20,111 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:20,303 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:20,490 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:09:20,684 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:09:20,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:20,879 INFO L93 Difference]: Finished difference Result 26832 states and 70033 transitions. [2021-06-05 20:09:20,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:20,880 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:20,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:20,910 INFO L225 Difference]: With dead ends: 26832 [2021-06-05 20:09:20,910 INFO L226 Difference]: Without dead ends: 26832 [2021-06-05 20:09:20,910 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1359.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:20,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26832 states. [2021-06-05 20:09:21,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26832 to 10141. [2021-06-05 20:09:21,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:21,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-05 20:09:21,143 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-05 20:09:21,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:21,143 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-05 20:09:21,143 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:21,143 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-05 20:09:21,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:21,153 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:21,153 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] [2021-06-05 20:09:21,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-06-05 20:09:21,153 INFO L430 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:21,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:21,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1126446196, now seen corresponding path program 228 times [2021-06-05 20:09:21,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:21,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539655251] [2021-06-05 20:09:21,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:21,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:21,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:21,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539655251] [2021-06-05 20:09:21,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539655251] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:21,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:21,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:21,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534613824] [2021-06-05 20:09:21,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:21,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:21,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:21,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:21,463 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:22,259 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:22,423 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:22,601 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:22,797 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:22,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:22,967 INFO L93 Difference]: Finished difference Result 23897 states and 62559 transitions. [2021-06-05 20:09:22,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:22,967 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:22,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:22,992 INFO L225 Difference]: With dead ends: 23897 [2021-06-05 20:09:22,993 INFO L226 Difference]: Without dead ends: 23897 [2021-06-05 20:09:22,993 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1319.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:23,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23897 states. [2021-06-05 20:09:23,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23897 to 10109. [2021-06-05 20:09:23,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:23,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-06-05 20:09:23,217 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-06-05 20:09:23,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:23,217 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-06-05 20:09:23,217 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:23,217 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-06-05 20:09:23,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:23,226 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:23,226 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] [2021-06-05 20:09:23,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-06-05 20:09:23,226 INFO L430 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:23,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:23,227 INFO L82 PathProgramCache]: Analyzing trace with hash -2146716502, now seen corresponding path program 229 times [2021-06-05 20:09:23,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:23,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566639472] [2021-06-05 20:09:23,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:23,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:23,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:23,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566639472] [2021-06-05 20:09:23,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566639472] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:23,547 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:23,547 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:23,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928279800] [2021-06-05 20:09:23,548 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:23,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:23,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:23,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:23,548 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:24,341 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:09:24,519 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:24,710 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:09:24,909 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:09:25,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:25,088 INFO L93 Difference]: Finished difference Result 23029 states and 60450 transitions. [2021-06-05 20:09:25,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:25,088 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:25,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:25,112 INFO L225 Difference]: With dead ends: 23029 [2021-06-05 20:09:25,112 INFO L226 Difference]: Without dead ends: 23029 [2021-06-05 20:09:25,112 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1350.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:25,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23029 states. [2021-06-05 20:09:25,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23029 to 10157. [2021-06-05 20:09:25,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:25,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-06-05 20:09:25,332 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-06-05 20:09:25,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:25,332 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-06-05 20:09:25,332 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:25,332 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-06-05 20:09:25,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:25,342 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:25,342 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] [2021-06-05 20:09:25,342 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-06-05 20:09:25,342 INFO L430 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:25,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:25,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1899703814, now seen corresponding path program 230 times [2021-06-05 20:09:25,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:25,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051077292] [2021-06-05 20:09:25,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:25,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:25,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:25,715 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051077292] [2021-06-05 20:09:25,715 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051077292] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:25,715 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:25,715 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:25,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704697285] [2021-06-05 20:09:25,715 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:25,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:25,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:25,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:25,715 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:26,494 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:09:26,666 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:26,841 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:27,036 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:27,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:27,187 INFO L93 Difference]: Finished difference Result 22869 states and 60048 transitions. [2021-06-05 20:09:27,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:27,187 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:27,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:27,210 INFO L225 Difference]: With dead ends: 22869 [2021-06-05 20:09:27,211 INFO L226 Difference]: Without dead ends: 22869 [2021-06-05 20:09:27,211 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1334.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:27,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22869 states. [2021-06-05 20:09:27,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22869 to 10141. [2021-06-05 20:09:27,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:27,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-05 20:09:27,421 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-05 20:09:27,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:27,421 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-05 20:09:27,421 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:27,422 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-05 20:09:27,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:27,431 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:27,431 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] [2021-06-05 20:09:27,431 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-06-05 20:09:27,431 INFO L430 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:27,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:27,431 INFO L82 PathProgramCache]: Analyzing trace with hash 742886510, now seen corresponding path program 231 times [2021-06-05 20:09:27,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:27,431 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202340470] [2021-06-05 20:09:27,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:27,751 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 20:09:27,751 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:27,751 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202340470] [2021-06-05 20:09:27,751 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202340470] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:27,751 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:27,751 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:27,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403364189] [2021-06-05 20:09:27,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:27,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:27,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:27,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:27,752 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:28,548 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:09:28,697 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:09:28,891 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:29,093 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:29,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:29,246 INFO L93 Difference]: Finished difference Result 20020 states and 52788 transitions. [2021-06-05 20:09:29,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:29,246 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:29,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:29,267 INFO L225 Difference]: With dead ends: 20020 [2021-06-05 20:09:29,267 INFO L226 Difference]: Without dead ends: 20020 [2021-06-05 20:09:29,267 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1332.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:29,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20020 states. [2021-06-05 20:09:29,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20020 to 9981. [2021-06-05 20:09:29,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.6920533119551058) internal successors, (26864), 9980 states have internal predecessors, (26864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:29,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26864 transitions. [2021-06-05 20:09:29,457 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26864 transitions. Word has length 114 [2021-06-05 20:09:29,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:29,457 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26864 transitions. [2021-06-05 20:09:29,457 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:29,457 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26864 transitions. [2021-06-05 20:09:29,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:29,467 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:29,467 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] [2021-06-05 20:09:29,467 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-06-05 20:09:29,467 INFO L430 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:29,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:29,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1390011382, now seen corresponding path program 232 times [2021-06-05 20:09:29,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:29,467 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518551172] [2021-06-05 20:09:29,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:29,797 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 20:09:29,797 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:29,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518551172] [2021-06-05 20:09:29,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518551172] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:29,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:29,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:29,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71078157] [2021-06-05 20:09:29,798 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:29,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:29,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:29,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:29,798 INFO L87 Difference]: Start difference. First operand 9981 states and 26864 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:30,598 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:09:30,752 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:09:30,944 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:31,143 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:31,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:31,334 INFO L93 Difference]: Finished difference Result 17897 states and 47354 transitions. [2021-06-05 20:09:31,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:31,335 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:31,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:31,352 INFO L225 Difference]: With dead ends: 17897 [2021-06-05 20:09:31,352 INFO L226 Difference]: Without dead ends: 17897 [2021-06-05 20:09:31,353 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1336.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:31,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17897 states. [2021-06-05 20:09:31,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17897 to 10141. [2021-06-05 20:09:31,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:31,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-05 20:09:31,525 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-05 20:09:31,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:31,525 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-05 20:09:31,525 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:31,525 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-05 20:09:31,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:31,534 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:31,534 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] [2021-06-05 20:09:31,534 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-06-05 20:09:31,535 INFO L430 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:31,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:31,535 INFO L82 PathProgramCache]: Analyzing trace with hash 523225354, now seen corresponding path program 233 times [2021-06-05 20:09:31,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:31,535 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633415765] [2021-06-05 20:09:31,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:31,862 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 20:09:31,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:31,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633415765] [2021-06-05 20:09:31,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633415765] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:31,862 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:31,862 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:31,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222421390] [2021-06-05 20:09:31,862 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:31,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:31,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:31,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:31,863 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:32,638 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:09:32,812 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:32,985 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:33,184 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:33,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:33,343 INFO L93 Difference]: Finished difference Result 20425 states and 53903 transitions. [2021-06-05 20:09:33,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:33,343 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:33,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:33,365 INFO L225 Difference]: With dead ends: 20425 [2021-06-05 20:09:33,365 INFO L226 Difference]: Without dead ends: 20425 [2021-06-05 20:09:33,366 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1340.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:33,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20425 states. [2021-06-05 20:09:33,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20425 to 10157. [2021-06-05 20:09:33,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:33,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-06-05 20:09:33,586 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-06-05 20:09:33,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:33,586 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-06-05 20:09:33,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:33,586 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-06-05 20:09:33,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:33,596 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:33,596 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] [2021-06-05 20:09:33,596 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-06-05 20:09:33,596 INFO L430 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:33,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:33,597 INFO L82 PathProgramCache]: Analyzing trace with hash -565247832, now seen corresponding path program 234 times [2021-06-05 20:09:33,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:33,597 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362710303] [2021-06-05 20:09:33,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:33,924 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 20:09:33,925 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:33,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362710303] [2021-06-05 20:09:33,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362710303] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:33,925 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:33,925 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:33,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840664602] [2021-06-05 20:09:33,925 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:33,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:33,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:33,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:33,925 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:34,699 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:09:34,872 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:35,062 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:09:35,258 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:09:35,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:35,409 INFO L93 Difference]: Finished difference Result 18765 states and 49303 transitions. [2021-06-05 20:09:35,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:35,410 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:35,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:35,430 INFO L225 Difference]: With dead ends: 18765 [2021-06-05 20:09:35,430 INFO L226 Difference]: Without dead ends: 18765 [2021-06-05 20:09:35,430 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1356.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:35,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18765 states. [2021-06-05 20:09:35,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18765 to 10109. [2021-06-05 20:09:35,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:35,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-06-05 20:09:35,627 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-06-05 20:09:35,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:35,627 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-06-05 20:09:35,627 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:35,627 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-06-05 20:09:35,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:35,637 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:35,637 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] [2021-06-05 20:09:35,637 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-06-05 20:09:35,637 INFO L430 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:35,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:35,637 INFO L82 PathProgramCache]: Analyzing trace with hash 844971978, now seen corresponding path program 235 times [2021-06-05 20:09:35,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:35,637 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076505302] [2021-06-05 20:09:35,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:35,951 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 20:09:35,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:35,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076505302] [2021-06-05 20:09:35,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076505302] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:35,951 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:35,951 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:35,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912900348] [2021-06-05 20:09:35,951 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:35,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:35,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:35,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:35,952 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:36,632 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 20:09:36,792 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:36,953 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:37,134 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:37,334 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:37,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:37,514 INFO L93 Difference]: Finished difference Result 21755 states and 57082 transitions. [2021-06-05 20:09:37,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:37,514 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:37,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:37,537 INFO L225 Difference]: With dead ends: 21755 [2021-06-05 20:09:37,537 INFO L226 Difference]: Without dead ends: 21755 [2021-06-05 20:09:37,537 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1367.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:37,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21755 states. [2021-06-05 20:09:37,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21755 to 10141. [2021-06-05 20:09:37,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:37,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-05 20:09:37,750 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-05 20:09:37,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:37,750 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-05 20:09:37,750 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:37,750 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-05 20:09:37,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:37,760 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:37,760 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] [2021-06-05 20:09:37,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-06-05 20:09:37,760 INFO L430 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:37,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:37,760 INFO L82 PathProgramCache]: Analyzing trace with hash -243501208, now seen corresponding path program 236 times [2021-06-05 20:09:37,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:37,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383805780] [2021-06-05 20:09:37,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:38,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:38,075 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:38,075 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383805780] [2021-06-05 20:09:38,075 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383805780] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:38,075 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:38,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:38,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222927206] [2021-06-05 20:09:38,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:38,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:38,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:38,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:38,075 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:38,852 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:39,010 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:39,199 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:09:39,388 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:09:39,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:39,550 INFO L93 Difference]: Finished difference Result 22568 states and 58886 transitions. [2021-06-05 20:09:39,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:39,550 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:39,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:39,572 INFO L225 Difference]: With dead ends: 22568 [2021-06-05 20:09:39,572 INFO L226 Difference]: Without dead ends: 22568 [2021-06-05 20:09:39,573 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1336.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:39,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22568 states. [2021-06-05 20:09:39,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22568 to 10125. [2021-06-05 20:09:39,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:39,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-06-05 20:09:39,783 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-06-05 20:09:39,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:39,783 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-06-05 20:09:39,783 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:39,783 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-06-05 20:09:39,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:39,793 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:39,793 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] [2021-06-05 20:09:39,793 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-06-05 20:09:39,793 INFO L430 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:39,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:39,793 INFO L82 PathProgramCache]: Analyzing trace with hash 554362252, now seen corresponding path program 237 times [2021-06-05 20:09:39,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:39,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787140337] [2021-06-05 20:09:39,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:40,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:40,115 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:40,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787140337] [2021-06-05 20:09:40,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787140337] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:40,115 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:40,115 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:40,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017297176] [2021-06-05 20:09:40,116 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:40,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:40,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:40,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:40,116 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:40,893 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:41,050 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:41,232 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:09:41,426 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:09:41,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:41,586 INFO L93 Difference]: Finished difference Result 21894 states and 57299 transitions. [2021-06-05 20:09:41,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:41,586 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:41,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:41,608 INFO L225 Difference]: With dead ends: 21894 [2021-06-05 20:09:41,608 INFO L226 Difference]: Without dead ends: 21894 [2021-06-05 20:09:41,608 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1335.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:41,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21894 states. [2021-06-05 20:09:41,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21894 to 10141. [2021-06-05 20:09:41,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:41,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-05 20:09:41,815 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-05 20:09:41,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:41,816 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-05 20:09:41,816 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:41,816 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-05 20:09:41,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:41,825 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:41,825 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] [2021-06-05 20:09:41,825 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-06-05 20:09:41,825 INFO L430 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:41,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:41,825 INFO L82 PathProgramCache]: Analyzing trace with hash 305815272, now seen corresponding path program 238 times [2021-06-05 20:09:41,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:41,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072747780] [2021-06-05 20:09:41,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:42,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:42,182 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:42,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072747780] [2021-06-05 20:09:42,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072747780] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:42,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:42,182 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:42,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084962866] [2021-06-05 20:09:42,182 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:42,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:42,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:42,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:42,182 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:42,979 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:43,138 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:43,312 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:43,508 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:43,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:43,660 INFO L93 Difference]: Finished difference Result 18959 states and 49825 transitions. [2021-06-05 20:09:43,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:43,660 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:43,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:43,682 INFO L225 Difference]: With dead ends: 18959 [2021-06-05 20:09:43,682 INFO L226 Difference]: Without dead ends: 18959 [2021-06-05 20:09:43,683 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1313.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:43,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18959 states. [2021-06-05 20:09:43,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18959 to 10077. [2021-06-05 20:09:43,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:43,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-06-05 20:09:43,877 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-06-05 20:09:43,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:43,877 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-06-05 20:09:43,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:43,877 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-06-05 20:09:43,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:43,887 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:43,887 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] [2021-06-05 20:09:43,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-06-05 20:09:43,887 INFO L430 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:43,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:43,887 INFO L82 PathProgramCache]: Analyzing trace with hash 709769804, now seen corresponding path program 239 times [2021-06-05 20:09:43,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:43,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767751772] [2021-06-05 20:09:43,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:44,194 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 20:09:44,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:44,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767751772] [2021-06-05 20:09:44,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767751772] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:44,195 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:44,195 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:44,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194511574] [2021-06-05 20:09:44,195 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:44,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:44,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:44,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:44,195 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:44,997 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:45,159 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:45,337 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:45,534 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:45,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:45,711 INFO L93 Difference]: Finished difference Result 22313 states and 58612 transitions. [2021-06-05 20:09:45,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:45,711 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:45,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:45,734 INFO L225 Difference]: With dead ends: 22313 [2021-06-05 20:09:45,734 INFO L226 Difference]: Without dead ends: 22313 [2021-06-05 20:09:45,734 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1321.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:45,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22313 states. [2021-06-05 20:09:45,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22313 to 10141. [2021-06-05 20:09:45,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:45,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-05 20:09:45,937 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-05 20:09:45,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:45,937 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-05 20:09:45,938 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:45,938 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-05 20:09:45,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:45,947 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:45,947 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] [2021-06-05 20:09:45,947 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-06-05 20:09:45,947 INFO L430 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:45,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:45,947 INFO L82 PathProgramCache]: Analyzing trace with hash -378703382, now seen corresponding path program 240 times [2021-06-05 20:09:45,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:45,947 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261182281] [2021-06-05 20:09:45,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:46,258 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 20:09:46,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:46,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261182281] [2021-06-05 20:09:46,258 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261182281] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:46,258 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:46,258 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:46,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188790751] [2021-06-05 20:09:46,258 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:46,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:46,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:46,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:46,259 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:47,040 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:47,197 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:47,386 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:09:47,605 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:09:47,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:47,765 INFO L93 Difference]: Finished difference Result 23126 states and 60416 transitions. [2021-06-05 20:09:47,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:47,766 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:47,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:47,788 INFO L225 Difference]: With dead ends: 23126 [2021-06-05 20:09:47,789 INFO L226 Difference]: Without dead ends: 23126 [2021-06-05 20:09:47,789 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1368.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:47,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23126 states. [2021-06-05 20:09:47,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23126 to 10125. [2021-06-05 20:09:47,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:47,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-06-05 20:09:47,998 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-06-05 20:09:47,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:47,998 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-06-05 20:09:47,998 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:47,998 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-06-05 20:09:48,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:48,007 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:48,008 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] [2021-06-05 20:09:48,008 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-06-05 20:09:48,008 INFO L430 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:48,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:48,008 INFO L82 PathProgramCache]: Analyzing trace with hash 419160078, now seen corresponding path program 241 times [2021-06-05 20:09:48,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:48,008 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381900860] [2021-06-05 20:09:48,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:48,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:48,317 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:48,317 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381900860] [2021-06-05 20:09:48,317 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381900860] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:48,317 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:48,317 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:48,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571870899] [2021-06-05 20:09:48,317 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:48,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:48,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:48,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:48,318 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:49,124 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:49,285 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:49,474 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:09:49,670 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:09:49,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:49,873 INFO L93 Difference]: Finished difference Result 26239 states and 68366 transitions. [2021-06-05 20:09:49,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:49,874 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:49,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:49,903 INFO L225 Difference]: With dead ends: 26239 [2021-06-05 20:09:49,903 INFO L226 Difference]: Without dead ends: 26239 [2021-06-05 20:09:49,903 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1335.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:49,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26239 states. [2021-06-05 20:09:50,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26239 to 10141. [2021-06-05 20:09:50,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:50,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-05 20:09:50,131 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-05 20:09:50,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:50,131 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-05 20:09:50,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:50,131 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-05 20:09:50,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:50,141 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:50,141 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] [2021-06-05 20:09:50,141 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-06-05 20:09:50,141 INFO L430 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:50,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:50,141 INFO L82 PathProgramCache]: Analyzing trace with hash 170613098, now seen corresponding path program 242 times [2021-06-05 20:09:50,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:50,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517334809] [2021-06-05 20:09:50,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:50,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:50,471 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:50,471 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517334809] [2021-06-05 20:09:50,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517334809] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:50,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:50,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:50,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974833785] [2021-06-05 20:09:50,471 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:50,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:50,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:50,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:50,471 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:51,250 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:51,409 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:51,583 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:51,775 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:51,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:51,927 INFO L93 Difference]: Finished difference Result 23304 states and 60892 transitions. [2021-06-05 20:09:51,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:51,927 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:51,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:51,950 INFO L225 Difference]: With dead ends: 23304 [2021-06-05 20:09:51,950 INFO L226 Difference]: Without dead ends: 23304 [2021-06-05 20:09:51,950 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1324.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:51,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23304 states. [2021-06-05 20:09:52,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23304 to 10109. [2021-06-05 20:09:52,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:52,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-06-05 20:09:52,153 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-06-05 20:09:52,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:52,153 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-06-05 20:09:52,153 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:52,153 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-06-05 20:09:52,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:52,162 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:52,162 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] [2021-06-05 20:09:52,162 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-06-05 20:09:52,162 INFO L430 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:52,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:52,162 INFO L82 PathProgramCache]: Analyzing trace with hash -849657208, now seen corresponding path program 243 times [2021-06-05 20:09:52,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:52,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567876083] [2021-06-05 20:09:52,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:52,481 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 20:09:52,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:52,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567876083] [2021-06-05 20:09:52,482 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567876083] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:52,482 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:52,482 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:52,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100711131] [2021-06-05 20:09:52,482 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:52,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:52,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:52,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:52,482 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:53,308 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:09:53,483 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:53,671 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:09:53,880 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:09:54,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:54,055 INFO L93 Difference]: Finished difference Result 22436 states and 58783 transitions. [2021-06-05 20:09:54,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:54,055 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:54,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:54,079 INFO L225 Difference]: With dead ends: 22436 [2021-06-05 20:09:54,079 INFO L226 Difference]: Without dead ends: 22436 [2021-06-05 20:09:54,079 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1379.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:54,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22436 states. [2021-06-05 20:09:54,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22436 to 10157. [2021-06-05 20:09:54,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:54,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-06-05 20:09:54,286 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-06-05 20:09:54,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:54,286 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-06-05 20:09:54,286 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:54,286 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-06-05 20:09:54,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:54,295 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:54,295 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] [2021-06-05 20:09:54,295 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-06-05 20:09:54,295 INFO L430 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:54,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:54,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1098204188, now seen corresponding path program 244 times [2021-06-05 20:09:54,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:54,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79289117] [2021-06-05 20:09:54,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:54,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:54,612 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:54,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79289117] [2021-06-05 20:09:54,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79289117] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:54,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:54,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:54,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771111634] [2021-06-05 20:09:54,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:54,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:54,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:54,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:54,613 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:55,396 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:09:55,570 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:55,747 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:55,946 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:56,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:56,111 INFO L93 Difference]: Finished difference Result 22276 states and 58381 transitions. [2021-06-05 20:09:56,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:56,111 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:56,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:56,133 INFO L225 Difference]: With dead ends: 22276 [2021-06-05 20:09:56,133 INFO L226 Difference]: Without dead ends: 22276 [2021-06-05 20:09:56,133 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1326.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:56,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22276 states. [2021-06-05 20:09:56,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22276 to 10141. [2021-06-05 20:09:56,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:56,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-05 20:09:56,335 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-05 20:09:56,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:56,335 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-05 20:09:56,335 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:56,335 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-05 20:09:56,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:56,344 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:56,344 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] [2021-06-05 20:09:56,344 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-06-05 20:09:56,344 INFO L430 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:56,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:56,345 INFO L82 PathProgramCache]: Analyzing trace with hash 2039945804, now seen corresponding path program 245 times [2021-06-05 20:09:56,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:56,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134834800] [2021-06-05 20:09:56,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:56,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:56,666 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:56,666 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134834800] [2021-06-05 20:09:56,666 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134834800] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:56,666 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:56,666 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:56,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303538730] [2021-06-05 20:09:56,666 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:56,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:56,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:56,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:56,667 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:57,464 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:09:57,616 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:09:57,809 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:09:58,010 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:09:58,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:09:58,162 INFO L93 Difference]: Finished difference Result 19427 states and 51121 transitions. [2021-06-05 20:09:58,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:09:58,163 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:09:58,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:09:58,182 INFO L225 Difference]: With dead ends: 19427 [2021-06-05 20:09:58,182 INFO L226 Difference]: Without dead ends: 19427 [2021-06-05 20:09:58,183 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1327.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:09:58,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19427 states. [2021-06-05 20:09:58,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19427 to 10013. [2021-06-05 20:09:58,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10013 states, 10011 states have (on average 2.6926380980920985) internal successors, (26956), 10012 states have internal predecessors, (26956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:58,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10013 states to 10013 states and 26956 transitions. [2021-06-05 20:09:58,404 INFO L78 Accepts]: Start accepts. Automaton has 10013 states and 26956 transitions. Word has length 114 [2021-06-05 20:09:58,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:09:58,404 INFO L482 AbstractCegarLoop]: Abstraction has 10013 states and 26956 transitions. [2021-06-05 20:09:58,404 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:58,404 INFO L276 IsEmpty]: Start isEmpty. Operand 10013 states and 26956 transitions. [2021-06-05 20:09:58,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:09:58,414 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:09:58,414 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] [2021-06-05 20:09:58,414 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-06-05 20:09:58,414 INFO L430 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:09:58,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:09:58,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1113536338, now seen corresponding path program 246 times [2021-06-05 20:09:58,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:09:58,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227202222] [2021-06-05 20:09:58,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:09:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:09:58,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:09:58,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:09:58,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227202222] [2021-06-05 20:09:58,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227202222] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:09:58,722 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:09:58,722 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:09:58,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392863564] [2021-06-05 20:09:58,722 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:09:58,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:09:58,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:09:58,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:09:58,722 INFO L87 Difference]: Start difference. First operand 10013 states and 26956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:09:59,490 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:09:59,647 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:09:59,819 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:00,009 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:00,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:00,155 INFO L93 Difference]: Finished difference Result 17411 states and 45980 transitions. [2021-06-05 20:10:00,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:00,155 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:00,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:00,173 INFO L225 Difference]: With dead ends: 17411 [2021-06-05 20:10:00,173 INFO L226 Difference]: Without dead ends: 17411 [2021-06-05 20:10:00,173 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1313.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:00,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17411 states. [2021-06-05 20:10:00,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17411 to 10093. [2021-06-05 20:10:00,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:00,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-05 20:10:00,339 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-05 20:10:00,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:00,339 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-05 20:10:00,340 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:00,340 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-05 20:10:00,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:00,351 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:00,351 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] [2021-06-05 20:10:00,351 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-06-05 20:10:00,351 INFO L430 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:00,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:00,352 INFO L82 PathProgramCache]: Analyzing trace with hash 2092957772, now seen corresponding path program 247 times [2021-06-05 20:10:00,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:00,352 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557429792] [2021-06-05 20:10:00,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:00,671 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 20:10:00,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:00,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557429792] [2021-06-05 20:10:00,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557429792] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:00,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:00,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:00,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144749413] [2021-06-05 20:10:00,671 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:00,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:00,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:00,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:00,672 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:01,444 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:10:01,602 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:01,790 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:10:01,980 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:10:02,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:02,128 INFO L93 Difference]: Finished difference Result 18224 states and 47784 transitions. [2021-06-05 20:10:02,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:02,129 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:02,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:02,150 INFO L225 Difference]: With dead ends: 18224 [2021-06-05 20:10:02,150 INFO L226 Difference]: Without dead ends: 18224 [2021-06-05 20:10:02,150 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1340.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:02,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18224 states. [2021-06-05 20:10:02,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18224 to 10077. [2021-06-05 20:10:02,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:02,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-06-05 20:10:02,336 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-06-05 20:10:02,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:02,336 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-06-05 20:10:02,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:02,336 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-06-05 20:10:02,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:02,346 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:02,346 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] [2021-06-05 20:10:02,346 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-06-05 20:10:02,346 INFO L430 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:02,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:02,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1404146064, now seen corresponding path program 248 times [2021-06-05 20:10:02,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:02,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015056674] [2021-06-05 20:10:02,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:02,658 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 20:10:02,658 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:02,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015056674] [2021-06-05 20:10:02,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015056674] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:02,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:02,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:02,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191495175] [2021-06-05 20:10:02,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:02,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:02,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:02,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:02,659 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:03,431 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:10:03,590 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:03,776 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:10:03,998 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:10:04,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:04,154 INFO L93 Difference]: Finished difference Result 21337 states and 55734 transitions. [2021-06-05 20:10:04,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:04,154 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:04,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:04,176 INFO L225 Difference]: With dead ends: 21337 [2021-06-05 20:10:04,176 INFO L226 Difference]: Without dead ends: 21337 [2021-06-05 20:10:04,176 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1371.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:04,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21337 states. [2021-06-05 20:10:04,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21337 to 10093. [2021-06-05 20:10:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:04,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-05 20:10:04,383 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-05 20:10:04,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:04,383 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-05 20:10:04,383 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:04,383 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-05 20:10:04,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:04,393 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:04,393 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] [2021-06-05 20:10:04,393 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-06-05 20:10:04,393 INFO L430 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:04,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:04,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1652693044, now seen corresponding path program 249 times [2021-06-05 20:10:04,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:04,393 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053965751] [2021-06-05 20:10:04,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:04,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:04,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:04,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053965751] [2021-06-05 20:10:04,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053965751] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:04,699 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:04,699 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:04,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445585212] [2021-06-05 20:10:04,699 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:04,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:04,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:04,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:04,699 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:05,498 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:10:05,661 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:05,837 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:06,034 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:06,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:06,185 INFO L93 Difference]: Finished difference Result 18402 states and 48260 transitions. [2021-06-05 20:10:06,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:06,185 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:06,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:06,205 INFO L225 Difference]: With dead ends: 18402 [2021-06-05 20:10:06,206 INFO L226 Difference]: Without dead ends: 18402 [2021-06-05 20:10:06,206 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1332.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:06,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18402 states. [2021-06-05 20:10:06,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18402 to 10061. [2021-06-05 20:10:06,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10061 states, 10059 states have (on average 2.6935083010239587) internal successors, (27094), 10060 states have internal predecessors, (27094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:06,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 27094 transitions. [2021-06-05 20:10:06,393 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 27094 transitions. Word has length 114 [2021-06-05 20:10:06,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:06,393 INFO L482 AbstractCegarLoop]: Abstraction has 10061 states and 27094 transitions. [2021-06-05 20:10:06,393 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:06,393 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 27094 transitions. [2021-06-05 20:10:06,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:06,403 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:06,403 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] [2021-06-05 20:10:06,403 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-06-05 20:10:06,403 INFO L430 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:06,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:06,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1622003946, now seen corresponding path program 250 times [2021-06-05 20:10:06,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:06,403 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671440432] [2021-06-05 20:10:06,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:06,728 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 20:10:06,728 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:06,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671440432] [2021-06-05 20:10:06,728 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671440432] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:06,728 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:06,728 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:06,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844794173] [2021-06-05 20:10:06,728 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:06,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:06,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:06,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:06,729 INFO L87 Difference]: Start difference. First operand 10061 states and 27094 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:07,499 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:10:07,671 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:07,860 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:10:08,054 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:10:08,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:08,218 INFO L93 Difference]: Finished difference Result 21847 states and 57126 transitions. [2021-06-05 20:10:08,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:08,218 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:08,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:08,240 INFO L225 Difference]: With dead ends: 21847 [2021-06-05 20:10:08,240 INFO L226 Difference]: Without dead ends: 21847 [2021-06-05 20:10:08,241 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1355.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:08,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21847 states. [2021-06-05 20:10:08,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21847 to 10109. [2021-06-05 20:10:08,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:08,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-06-05 20:10:08,448 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-06-05 20:10:08,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:08,448 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-06-05 20:10:08,448 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:08,448 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-06-05 20:10:08,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:08,458 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:08,458 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] [2021-06-05 20:10:08,458 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-06-05 20:10:08,458 INFO L430 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:08,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:08,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1373456966, now seen corresponding path program 251 times [2021-06-05 20:10:08,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:08,458 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579436579] [2021-06-05 20:10:08,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:08,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:08,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:08,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579436579] [2021-06-05 20:10:08,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579436579] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:08,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:08,777 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:08,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266908387] [2021-06-05 20:10:08,778 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:08,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:08,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:08,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:08,778 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:09,319 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-06-05 20:10:09,586 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:10:09,764 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:09,943 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:10,143 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:10,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:10,311 INFO L93 Difference]: Finished difference Result 21687 states and 56724 transitions. [2021-06-05 20:10:10,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:10,312 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:10,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:10,334 INFO L225 Difference]: With dead ends: 21687 [2021-06-05 20:10:10,335 INFO L226 Difference]: Without dead ends: 21687 [2021-06-05 20:10:10,335 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1367.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:10,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21687 states. [2021-06-05 20:10:10,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21687 to 10093. [2021-06-05 20:10:10,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:10,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-05 20:10:10,537 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-05 20:10:10,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:10,537 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-05 20:10:10,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:10,537 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-05 20:10:10,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:10,546 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:10,546 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] [2021-06-05 20:10:10,546 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-06-05 20:10:10,546 INFO L430 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:10,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:10,546 INFO L82 PathProgramCache]: Analyzing trace with hash 216639662, now seen corresponding path program 252 times [2021-06-05 20:10:10,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:10,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095918817] [2021-06-05 20:10:10,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:10,869 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 20:10:10,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:10,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095918817] [2021-06-05 20:10:10,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095918817] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:10,870 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:10,870 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:10,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093008250] [2021-06-05 20:10:10,870 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:10,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:10,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:10,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:10,870 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:11,634 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:10:11,782 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:10:11,972 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:12,169 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:12,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:12,314 INFO L93 Difference]: Finished difference Result 18838 states and 49464 transitions. [2021-06-05 20:10:12,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:12,314 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:12,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:12,334 INFO L225 Difference]: With dead ends: 18838 [2021-06-05 20:10:12,334 INFO L226 Difference]: Without dead ends: 18838 [2021-06-05 20:10:12,334 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1327.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:12,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18838 states. [2021-06-05 20:10:12,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18838 to 10029. [2021-06-05 20:10:12,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10029 states, 10027 states have (on average 2.6929290914530766) internal successors, (27002), 10028 states have internal predecessors, (27002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:12,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10029 states to 10029 states and 27002 transitions. [2021-06-05 20:10:12,521 INFO L78 Accepts]: Start accepts. Automaton has 10029 states and 27002 transitions. Word has length 114 [2021-06-05 20:10:12,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:12,521 INFO L482 AbstractCegarLoop]: Abstraction has 10029 states and 27002 transitions. [2021-06-05 20:10:12,521 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:12,521 INFO L276 IsEmpty]: Start isEmpty. Operand 10029 states and 27002 transitions. [2021-06-05 20:10:12,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:12,531 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:12,531 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] [2021-06-05 20:10:12,531 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-06-05 20:10:12,531 INFO L430 AbstractCegarLoop]: === Iteration 262 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:12,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:12,531 INFO L82 PathProgramCache]: Analyzing trace with hash 2026363528, now seen corresponding path program 253 times [2021-06-05 20:10:12,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:12,531 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653402119] [2021-06-05 20:10:12,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:12,886 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 20:10:12,886 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:12,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653402119] [2021-06-05 20:10:12,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653402119] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:12,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:12,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:12,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152473664] [2021-06-05 20:10:12,887 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:12,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:12,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:12,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:12,887 INFO L87 Difference]: Start difference. First operand 10029 states and 27002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:13,645 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:10:13,817 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:14,003 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:10:14,195 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:10:14,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:14,342 INFO L93 Difference]: Finished difference Result 17502 states and 46059 transitions. [2021-06-05 20:10:14,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:14,342 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:14,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:14,361 INFO L225 Difference]: With dead ends: 17502 [2021-06-05 20:10:14,361 INFO L226 Difference]: Without dead ends: 17502 [2021-06-05 20:10:14,361 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1366.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:14,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17502 states. [2021-06-05 20:10:14,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17502 to 10093. [2021-06-05 20:10:14,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-05 20:10:14,539 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-05 20:10:14,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:14,539 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-05 20:10:14,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:14,539 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-05 20:10:14,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:14,549 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:14,549 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] [2021-06-05 20:10:14,549 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-06-05 20:10:14,549 INFO L430 AbstractCegarLoop]: === Iteration 263 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:14,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:14,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1777816548, now seen corresponding path program 254 times [2021-06-05 20:10:14,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:14,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142765951] [2021-06-05 20:10:14,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:14,929 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 20:10:14,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:14,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142765951] [2021-06-05 20:10:14,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142765951] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:14,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:14,929 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:14,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956829670] [2021-06-05 20:10:14,930 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:14,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:14,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:14,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:14,930 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:15,692 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:10:15,865 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:16,040 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:16,236 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:16,373 INFO L93 Difference]: Finished difference Result 17342 states and 45657 transitions. [2021-06-05 20:10:16,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:16,373 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:16,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:16,391 INFO L225 Difference]: With dead ends: 17342 [2021-06-05 20:10:16,391 INFO L226 Difference]: Without dead ends: 17342 [2021-06-05 20:10:16,391 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1342.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:16,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17342 states. [2021-06-05 20:10:16,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17342 to 10077. [2021-06-05 20:10:16,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:16,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-06-05 20:10:16,561 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-06-05 20:10:16,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:16,561 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-06-05 20:10:16,561 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:16,561 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-06-05 20:10:16,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:16,570 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:16,571 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] [2021-06-05 20:10:16,571 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-06-05 20:10:16,571 INFO L430 AbstractCegarLoop]: === Iteration 264 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:16,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:16,571 INFO L82 PathProgramCache]: Analyzing trace with hash 620999244, now seen corresponding path program 255 times [2021-06-05 20:10:16,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:16,571 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970106179] [2021-06-05 20:10:16,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:16,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:16,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:16,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970106179] [2021-06-05 20:10:16,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970106179] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:16,906 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:16,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:16,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961318333] [2021-06-05 20:10:16,906 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:16,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:16,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:16,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:16,906 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:17,690 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:10:17,841 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:10:18,038 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:18,241 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:18,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:18,398 INFO L93 Difference]: Finished difference Result 17630 states and 46485 transitions. [2021-06-05 20:10:18,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:18,399 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:18,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:18,418 INFO L225 Difference]: With dead ends: 17630 [2021-06-05 20:10:18,418 INFO L226 Difference]: Without dead ends: 17630 [2021-06-05 20:10:18,419 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1344.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:18,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17630 states. [2021-06-05 20:10:18,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17630 to 10045. [2021-06-05 20:10:18,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10045 states, 10043 states have (on average 2.6932191576222246) internal successors, (27048), 10044 states have internal predecessors, (27048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:18,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10045 states to 10045 states and 27048 transitions. [2021-06-05 20:10:18,610 INFO L78 Accepts]: Start accepts. Automaton has 10045 states and 27048 transitions. Word has length 114 [2021-06-05 20:10:18,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:18,610 INFO L482 AbstractCegarLoop]: Abstraction has 10045 states and 27048 transitions. [2021-06-05 20:10:18,610 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:18,610 INFO L276 IsEmpty]: Start isEmpty. Operand 10045 states and 27048 transitions. [2021-06-05 20:10:18,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:18,620 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:18,620 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] [2021-06-05 20:10:18,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-06-05 20:10:18,620 INFO L430 AbstractCegarLoop]: === Iteration 265 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:18,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:18,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1965784914, now seen corresponding path program 256 times [2021-06-05 20:10:18,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:18,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747190550] [2021-06-05 20:10:18,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:18,980 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 20:10:18,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:18,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747190550] [2021-06-05 20:10:18,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747190550] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:18,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:18,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:18,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044121799] [2021-06-05 20:10:18,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:18,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:18,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:18,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:18,981 INFO L87 Difference]: Start difference. First operand 10045 states and 27048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:19,760 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:10:19,907 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:10:20,101 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:20,302 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:20,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:20,443 INFO L93 Difference]: Finished difference Result 14345 states and 38021 transitions. [2021-06-05 20:10:20,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:20,443 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:20,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:20,459 INFO L225 Difference]: With dead ends: 14345 [2021-06-05 20:10:20,459 INFO L226 Difference]: Without dead ends: 14345 [2021-06-05 20:10:20,459 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1344.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:20,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14345 states. [2021-06-05 20:10:20,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14345 to 9973. [2021-06-05 20:10:20,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9971 states have (on average 2.6910039113428943) internal successors, (26832), 9972 states have internal predecessors, (26832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:20,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 26832 transitions. [2021-06-05 20:10:20,627 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 26832 transitions. Word has length 114 [2021-06-05 20:10:20,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:20,627 INFO L482 AbstractCegarLoop]: Abstraction has 9973 states and 26832 transitions. [2021-06-05 20:10:20,627 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:20,627 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 26832 transitions. [2021-06-05 20:10:20,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:20,636 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:20,636 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] [2021-06-05 20:10:20,636 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-06-05 20:10:20,636 INFO L430 AbstractCegarLoop]: === Iteration 266 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:20,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:20,636 INFO L82 PathProgramCache]: Analyzing trace with hash -2029741464, now seen corresponding path program 257 times [2021-06-05 20:10:20,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:20,636 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055452185] [2021-06-05 20:10:20,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:20,961 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 20:10:20,961 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:20,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055452185] [2021-06-05 20:10:20,961 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055452185] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:20,961 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:20,961 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:20,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339675120] [2021-06-05 20:10:20,961 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:20,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:20,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:20,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:20,962 INFO L87 Difference]: Start difference. First operand 9973 states and 26832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:21,731 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:10:21,880 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:10:22,068 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:22,267 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:22,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:22,429 INFO L93 Difference]: Finished difference Result 17620 states and 46550 transitions. [2021-06-05 20:10:22,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:22,430 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:22,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:22,449 INFO L225 Difference]: With dead ends: 17620 [2021-06-05 20:10:22,450 INFO L226 Difference]: Without dead ends: 17620 [2021-06-05 20:10:22,450 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1318.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:22,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17620 states. [2021-06-05 20:10:22,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17620 to 10037. [2021-06-05 20:10:22,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 10035 states have (on average 2.692177379172895) internal successors, (27016), 10036 states have internal predecessors, (27016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:22,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 27016 transitions. [2021-06-05 20:10:22,637 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 27016 transitions. Word has length 114 [2021-06-05 20:10:22,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:22,637 INFO L482 AbstractCegarLoop]: Abstraction has 10037 states and 27016 transitions. [2021-06-05 20:10:22,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:22,637 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 27016 transitions. [2021-06-05 20:10:22,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:22,646 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:22,646 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] [2021-06-05 20:10:22,646 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-06-05 20:10:22,647 INFO L430 AbstractCegarLoop]: === Iteration 267 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:22,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:22,647 INFO L82 PathProgramCache]: Analyzing trace with hash -116504728, now seen corresponding path program 258 times [2021-06-05 20:10:22,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:22,647 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798003248] [2021-06-05 20:10:22,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:22,972 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 20:10:22,972 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:22,972 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798003248] [2021-06-05 20:10:22,972 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798003248] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:22,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:22,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:22,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655239792] [2021-06-05 20:10:22,973 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:22,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:22,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:22,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:22,973 INFO L87 Difference]: Start difference. First operand 10037 states and 27016 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:23,756 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:10:23,929 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:24,102 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:24,302 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:24,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:24,464 INFO L93 Difference]: Finished difference Result 20148 states and 53099 transitions. [2021-06-05 20:10:24,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:24,464 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:24,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:24,485 INFO L225 Difference]: With dead ends: 20148 [2021-06-05 20:10:24,485 INFO L226 Difference]: Without dead ends: 20148 [2021-06-05 20:10:24,485 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1340.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:24,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20148 states. [2021-06-05 20:10:24,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20148 to 10053. [2021-06-05 20:10:24,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10053 states, 10051 states have (on average 2.692468411103373) internal successors, (27062), 10052 states have internal predecessors, (27062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:24,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10053 states to 10053 states and 27062 transitions. [2021-06-05 20:10:24,679 INFO L78 Accepts]: Start accepts. Automaton has 10053 states and 27062 transitions. Word has length 114 [2021-06-05 20:10:24,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:24,679 INFO L482 AbstractCegarLoop]: Abstraction has 10053 states and 27062 transitions. [2021-06-05 20:10:24,679 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:24,679 INFO L276 IsEmpty]: Start isEmpty. Operand 10053 states and 27062 transitions. [2021-06-05 20:10:24,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:24,688 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:24,688 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] [2021-06-05 20:10:24,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-06-05 20:10:24,688 INFO L430 AbstractCegarLoop]: === Iteration 268 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:24,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:24,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1204977914, now seen corresponding path program 259 times [2021-06-05 20:10:24,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:24,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152974023] [2021-06-05 20:10:24,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:25,010 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 20:10:25,011 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:25,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152974023] [2021-06-05 20:10:25,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152974023] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:25,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:25,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:25,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826491260] [2021-06-05 20:10:25,011 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:25,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:25,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:25,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:25,011 INFO L87 Difference]: Start difference. First operand 10053 states and 27062 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:25,796 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:10:26,001 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:26,188 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:10:26,385 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:10:26,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:26,546 INFO L93 Difference]: Finished difference Result 18488 states and 48499 transitions. [2021-06-05 20:10:26,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:26,546 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:26,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:26,565 INFO L225 Difference]: With dead ends: 18488 [2021-06-05 20:10:26,565 INFO L226 Difference]: Without dead ends: 18488 [2021-06-05 20:10:26,565 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1383.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:26,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18488 states. [2021-06-05 20:10:26,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18488 to 10005. [2021-06-05 20:10:26,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10005 states, 10003 states have (on average 2.691592522243327) internal successors, (26924), 10004 states have internal predecessors, (26924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:26,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10005 states to 10005 states and 26924 transitions. [2021-06-05 20:10:26,748 INFO L78 Accepts]: Start accepts. Automaton has 10005 states and 26924 transitions. Word has length 114 [2021-06-05 20:10:26,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:26,748 INFO L482 AbstractCegarLoop]: Abstraction has 10005 states and 26924 transitions. [2021-06-05 20:10:26,748 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:26,748 INFO L276 IsEmpty]: Start isEmpty. Operand 10005 states and 26924 transitions. [2021-06-05 20:10:26,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:26,757 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:26,757 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] [2021-06-05 20:10:26,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-06-05 20:10:26,757 INFO L430 AbstractCegarLoop]: === Iteration 269 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:26,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:26,758 INFO L82 PathProgramCache]: Analyzing trace with hash 205241896, now seen corresponding path program 260 times [2021-06-05 20:10:26,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:26,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868286307] [2021-06-05 20:10:26,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:27,063 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 20:10:27,063 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:27,063 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868286307] [2021-06-05 20:10:27,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868286307] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:27,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:27,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:27,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653964448] [2021-06-05 20:10:27,064 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:27,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:27,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:27,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:27,064 INFO L87 Difference]: Start difference. First operand 10005 states and 26924 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:27,833 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:10:27,991 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:28,163 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:28,358 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:28,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:28,505 INFO L93 Difference]: Finished difference Result 17726 states and 46716 transitions. [2021-06-05 20:10:28,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:28,506 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:28,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:28,524 INFO L225 Difference]: With dead ends: 17726 [2021-06-05 20:10:28,524 INFO L226 Difference]: Without dead ends: 17726 [2021-06-05 20:10:28,525 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1327.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:28,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17726 states. [2021-06-05 20:10:28,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17726 to 10037. [2021-06-05 20:10:28,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 10035 states have (on average 2.692177379172895) internal successors, (27016), 10036 states have internal predecessors, (27016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:28,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 27016 transitions. [2021-06-05 20:10:28,709 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 27016 transitions. Word has length 114 [2021-06-05 20:10:28,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:28,709 INFO L482 AbstractCegarLoop]: Abstraction has 10037 states and 27016 transitions. [2021-06-05 20:10:28,709 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:28,709 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 27016 transitions. [2021-06-05 20:10:28,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:28,719 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:28,719 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] [2021-06-05 20:10:28,719 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-06-05 20:10:28,719 INFO L430 AbstractCegarLoop]: === Iteration 270 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:28,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:28,719 INFO L82 PathProgramCache]: Analyzing trace with hash -883231290, now seen corresponding path program 261 times [2021-06-05 20:10:28,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:28,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789421234] [2021-06-05 20:10:28,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:28,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:29,052 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 20:10:29,052 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:29,052 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789421234] [2021-06-05 20:10:29,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789421234] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:29,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:29,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:29,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660489233] [2021-06-05 20:10:29,053 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:29,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:29,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:29,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:29,053 INFO L87 Difference]: Start difference. First operand 10037 states and 27016 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:29,820 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:10:29,977 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:30,163 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:10:30,353 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:10:30,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:30,502 INFO L93 Difference]: Finished difference Result 18539 states and 48520 transitions. [2021-06-05 20:10:30,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:30,502 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:30,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:30,522 INFO L225 Difference]: With dead ends: 18539 [2021-06-05 20:10:30,522 INFO L226 Difference]: Without dead ends: 18539 [2021-06-05 20:10:30,522 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1345.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:30,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18539 states. [2021-06-05 20:10:30,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18539 to 10021. [2021-06-05 20:10:30,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10021 states, 10019 states have (on average 2.691885417706358) internal successors, (26970), 10020 states have internal predecessors, (26970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:30,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10021 states to 10021 states and 26970 transitions. [2021-06-05 20:10:30,706 INFO L78 Accepts]: Start accepts. Automaton has 10021 states and 26970 transitions. Word has length 114 [2021-06-05 20:10:30,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:30,707 INFO L482 AbstractCegarLoop]: Abstraction has 10021 states and 26970 transitions. [2021-06-05 20:10:30,707 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:30,707 INFO L276 IsEmpty]: Start isEmpty. Operand 10021 states and 26970 transitions. [2021-06-05 20:10:30,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:30,716 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:30,716 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] [2021-06-05 20:10:30,716 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-06-05 20:10:30,716 INFO L430 AbstractCegarLoop]: === Iteration 271 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:30,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:30,716 INFO L82 PathProgramCache]: Analyzing trace with hash -85367830, now seen corresponding path program 262 times [2021-06-05 20:10:30,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:30,716 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449233288] [2021-06-05 20:10:30,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:31,025 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 20:10:31,025 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:31,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449233288] [2021-06-05 20:10:31,025 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449233288] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:31,025 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:31,025 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:31,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364328731] [2021-06-05 20:10:31,026 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:31,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:31,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:31,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:31,026 INFO L87 Difference]: Start difference. First operand 10021 states and 26970 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:31,815 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:10:31,973 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:32,155 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:10:32,348 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:10:32,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:32,490 INFO L93 Difference]: Finished difference Result 17865 states and 46933 transitions. [2021-06-05 20:10:32,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:32,491 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:32,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:32,510 INFO L225 Difference]: With dead ends: 17865 [2021-06-05 20:10:32,510 INFO L226 Difference]: Without dead ends: 17865 [2021-06-05 20:10:32,510 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1337.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:32,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17865 states. [2021-06-05 20:10:32,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17865 to 10037. [2021-06-05 20:10:32,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 10035 states have (on average 2.692177379172895) internal successors, (27016), 10036 states have internal predecessors, (27016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:32,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 27016 transitions. [2021-06-05 20:10:32,698 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 27016 transitions. Word has length 114 [2021-06-05 20:10:32,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:32,698 INFO L482 AbstractCegarLoop]: Abstraction has 10037 states and 27016 transitions. [2021-06-05 20:10:32,698 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:32,698 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 27016 transitions. [2021-06-05 20:10:32,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:32,709 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:32,709 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] [2021-06-05 20:10:32,709 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-06-05 20:10:32,709 INFO L430 AbstractCegarLoop]: === Iteration 272 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:32,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:32,710 INFO L82 PathProgramCache]: Analyzing trace with hash -333914810, now seen corresponding path program 263 times [2021-06-05 20:10:32,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:32,710 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105456698] [2021-06-05 20:10:32,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:33,016 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 20:10:33,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:33,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105456698] [2021-06-05 20:10:33,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105456698] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:33,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:33,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:33,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047746212] [2021-06-05 20:10:33,016 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:33,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:33,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:33,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:33,017 INFO L87 Difference]: Start difference. First operand 10037 states and 27016 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:33,798 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:10:33,957 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:34,131 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:34,326 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:34,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:34,467 INFO L93 Difference]: Finished difference Result 15212 states and 40173 transitions. [2021-06-05 20:10:34,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:34,467 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:34,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:34,484 INFO L225 Difference]: With dead ends: 15212 [2021-06-05 20:10:34,484 INFO L226 Difference]: Without dead ends: 15212 [2021-06-05 20:10:34,484 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1340.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:34,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15212 states. [2021-06-05 20:10:34,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15212 to 9973. [2021-06-05 20:10:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9971 states have (on average 2.6910039113428943) internal successors, (26832), 9972 states have internal predecessors, (26832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:34,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 26832 transitions. [2021-06-05 20:10:34,646 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 26832 transitions. Word has length 114 [2021-06-05 20:10:34,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:34,646 INFO L482 AbstractCegarLoop]: Abstraction has 9973 states and 26832 transitions. [2021-06-05 20:10:34,646 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:34,646 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 26832 transitions. [2021-06-05 20:10:34,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:34,655 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:34,655 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] [2021-06-05 20:10:34,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-06-05 20:10:34,655 INFO L430 AbstractCegarLoop]: === Iteration 273 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:34,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:34,656 INFO L82 PathProgramCache]: Analyzing trace with hash -2124419702, now seen corresponding path program 264 times [2021-06-05 20:10:34,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:34,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649898898] [2021-06-05 20:10:34,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:35,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:35,001 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:35,001 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649898898] [2021-06-05 20:10:35,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649898898] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:35,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:35,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:35,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64004552] [2021-06-05 20:10:35,002 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:35,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:35,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:35,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:35,002 INFO L87 Difference]: Start difference. First operand 9973 states and 26832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:35,768 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:10:35,918 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:10:36,108 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:36,306 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:36,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:36,457 INFO L93 Difference]: Finished difference Result 16348 states and 43465 transitions. [2021-06-05 20:10:36,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:36,457 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:36,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:36,475 INFO L225 Difference]: With dead ends: 16348 [2021-06-05 20:10:36,475 INFO L226 Difference]: Without dead ends: 16348 [2021-06-05 20:10:36,476 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1344.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:36,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16348 states. [2021-06-05 20:10:36,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16348 to 10005. [2021-06-05 20:10:36,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10005 states, 10003 states have (on average 2.691592522243327) internal successors, (26924), 10004 states have internal predecessors, (26924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:36,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10005 states to 10005 states and 26924 transitions. [2021-06-05 20:10:36,646 INFO L78 Accepts]: Start accepts. Automaton has 10005 states and 26924 transitions. Word has length 114 [2021-06-05 20:10:36,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:36,646 INFO L482 AbstractCegarLoop]: Abstraction has 10005 states and 26924 transitions. [2021-06-05 20:10:36,646 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:36,646 INFO L276 IsEmpty]: Start isEmpty. Operand 10005 states and 26924 transitions. [2021-06-05 20:10:36,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:36,657 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:36,657 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] [2021-06-05 20:10:36,657 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-06-05 20:10:36,657 INFO L430 AbstractCegarLoop]: === Iteration 274 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:36,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:36,657 INFO L82 PathProgramCache]: Analyzing trace with hash -211182966, now seen corresponding path program 265 times [2021-06-05 20:10:36,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:36,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681132554] [2021-06-05 20:10:36,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:37,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:37,096 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:37,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681132554] [2021-06-05 20:10:37,096 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681132554] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:37,096 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:37,096 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:37,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555290224] [2021-06-05 20:10:37,096 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:37,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:37,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:37,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:37,096 INFO L87 Difference]: Start difference. First operand 10005 states and 26924 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:37,880 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:10:38,061 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:38,237 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:38,436 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:38,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:38,599 INFO L93 Difference]: Finished difference Result 16420 states and 43597 transitions. [2021-06-05 20:10:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:38,599 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:38,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:38,618 INFO L225 Difference]: With dead ends: 16420 [2021-06-05 20:10:38,618 INFO L226 Difference]: Without dead ends: 16420 [2021-06-05 20:10:38,618 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1355.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:38,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16420 states. [2021-06-05 20:10:38,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16420 to 10021. [2021-06-05 20:10:38,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10021 states, 10019 states have (on average 2.691885417706358) internal successors, (26970), 10020 states have internal predecessors, (26970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:38,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10021 states to 10021 states and 26970 transitions. [2021-06-05 20:10:38,791 INFO L78 Accepts]: Start accepts. Automaton has 10021 states and 26970 transitions. Word has length 114 [2021-06-05 20:10:38,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:38,792 INFO L482 AbstractCegarLoop]: Abstraction has 10021 states and 26970 transitions. [2021-06-05 20:10:38,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:38,792 INFO L276 IsEmpty]: Start isEmpty. Operand 10021 states and 26970 transitions. [2021-06-05 20:10:38,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:38,801 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:38,801 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] [2021-06-05 20:10:38,801 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-06-05 20:10:38,801 INFO L430 AbstractCegarLoop]: === Iteration 275 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:38,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:38,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1299656152, now seen corresponding path program 266 times [2021-06-05 20:10:38,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:38,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142565790] [2021-06-05 20:10:38,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:39,140 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 20:10:39,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:39,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142565790] [2021-06-05 20:10:39,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142565790] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:39,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:39,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:39,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009209493] [2021-06-05 20:10:39,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:39,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:39,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:39,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:39,141 INFO L87 Difference]: Start difference. First operand 10021 states and 26970 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:39,906 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:10:40,080 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:40,268 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:10:40,460 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:10:40,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:40,601 INFO L93 Difference]: Finished difference Result 15830 states and 41675 transitions. [2021-06-05 20:10:40,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:40,602 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:40,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:40,618 INFO L225 Difference]: With dead ends: 15830 [2021-06-05 20:10:40,619 INFO L226 Difference]: Without dead ends: 15830 [2021-06-05 20:10:40,619 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1369.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:40,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15830 states. [2021-06-05 20:10:40,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15830 to 9973. [2021-06-05 20:10:40,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9971 states have (on average 2.6910039113428943) internal successors, (26832), 9972 states have internal predecessors, (26832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:40,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 26832 transitions. [2021-06-05 20:10:40,785 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 26832 transitions. Word has length 114 [2021-06-05 20:10:40,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:40,785 INFO L482 AbstractCegarLoop]: Abstraction has 9973 states and 26832 transitions. [2021-06-05 20:10:40,786 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:40,786 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 26832 transitions. [2021-06-05 20:10:40,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:40,795 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:40,795 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] [2021-06-05 20:10:40,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-06-05 20:10:40,795 INFO L430 AbstractCegarLoop]: === Iteration 276 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:40,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:40,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1791730280, now seen corresponding path program 267 times [2021-06-05 20:10:40,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:40,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140629900] [2021-06-05 20:10:40,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:41,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:41,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:41,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140629900] [2021-06-05 20:10:41,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140629900] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:41,180 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:41,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:41,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799534889] [2021-06-05 20:10:41,181 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:41,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:41,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:41,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:41,181 INFO L87 Difference]: Start difference. First operand 9973 states and 26832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:41,946 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:10:42,092 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:10:42,284 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:42,484 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:42,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:42,629 INFO L93 Difference]: Finished difference Result 12718 states and 33666 transitions. [2021-06-05 20:10:42,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:42,630 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:42,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:42,643 INFO L225 Difference]: With dead ends: 12718 [2021-06-05 20:10:42,644 INFO L226 Difference]: Without dead ends: 12718 [2021-06-05 20:10:42,644 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1361.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:42,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12718 states. [2021-06-05 20:10:42,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12718 to 9853. [2021-06-05 20:10:42,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9853 states, 9851 states have (on average 2.688458024566034) internal successors, (26484), 9852 states have internal predecessors, (26484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:42,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9853 states to 9853 states and 26484 transitions. [2021-06-05 20:10:42,816 INFO L78 Accepts]: Start accepts. Automaton has 9853 states and 26484 transitions. Word has length 114 [2021-06-05 20:10:42,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:42,817 INFO L482 AbstractCegarLoop]: Abstraction has 9853 states and 26484 transitions. [2021-06-05 20:10:42,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:42,817 INFO L276 IsEmpty]: Start isEmpty. Operand 9853 states and 26484 transitions. [2021-06-05 20:10:42,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:42,826 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:42,826 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] [2021-06-05 20:10:42,826 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-06-05 20:10:42,826 INFO L430 AbstractCegarLoop]: === Iteration 277 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:42,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:42,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1191720824, now seen corresponding path program 268 times [2021-06-05 20:10:42,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:42,827 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247702250] [2021-06-05 20:10:42,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:43,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:43,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247702250] [2021-06-05 20:10:43,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247702250] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:43,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:43,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:43,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969173956] [2021-06-05 20:10:43,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:43,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:43,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:43,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:43,153 INFO L87 Difference]: Start difference. First operand 9853 states and 26484 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:43,944 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:10:44,095 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:10:44,287 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:44,487 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:44,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:44,654 INFO L93 Difference]: Finished difference Result 17118 states and 44986 transitions. [2021-06-05 20:10:44,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:44,654 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:44,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:44,673 INFO L225 Difference]: With dead ends: 17118 [2021-06-05 20:10:44,673 INFO L226 Difference]: Without dead ends: 17118 [2021-06-05 20:10:44,673 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1331.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:44,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17118 states. [2021-06-05 20:10:44,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17118 to 9981. [2021-06-05 20:10:44,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:44,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-05 20:10:44,854 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-05 20:10:44,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:44,854 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-05 20:10:44,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:44,854 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-05 20:10:44,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:44,864 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:44,864 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] [2021-06-05 20:10:44,864 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-06-05 20:10:44,864 INFO L430 AbstractCegarLoop]: === Iteration 278 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:44,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:44,864 INFO L82 PathProgramCache]: Analyzing trace with hash 721515912, now seen corresponding path program 269 times [2021-06-05 20:10:44,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:44,864 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30602122] [2021-06-05 20:10:44,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:45,183 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 20:10:45,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:45,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30602122] [2021-06-05 20:10:45,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30602122] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:45,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:45,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:45,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49669647] [2021-06-05 20:10:45,184 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:45,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:45,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:45,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:45,184 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:45,972 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:10:46,147 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:46,321 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:46,522 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:46,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:46,686 INFO L93 Difference]: Finished difference Result 19646 states and 51535 transitions. [2021-06-05 20:10:46,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:46,686 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:46,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:46,706 INFO L225 Difference]: With dead ends: 19646 [2021-06-05 20:10:46,706 INFO L226 Difference]: Without dead ends: 19646 [2021-06-05 20:10:46,706 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1333.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:46,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19646 states. [2021-06-05 20:10:46,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19646 to 9997. [2021-06-05 20:10:46,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9997 states, 9995 states have (on average 2.691145572786393) internal successors, (26898), 9996 states have internal predecessors, (26898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:46,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9997 states to 9997 states and 26898 transitions. [2021-06-05 20:10:46,901 INFO L78 Accepts]: Start accepts. Automaton has 9997 states and 26898 transitions. Word has length 114 [2021-06-05 20:10:46,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:46,901 INFO L482 AbstractCegarLoop]: Abstraction has 9997 states and 26898 transitions. [2021-06-05 20:10:46,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:46,902 INFO L276 IsEmpty]: Start isEmpty. Operand 9997 states and 26898 transitions. [2021-06-05 20:10:46,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:46,911 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:46,911 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] [2021-06-05 20:10:46,911 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-06-05 20:10:46,911 INFO L430 AbstractCegarLoop]: === Iteration 279 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:46,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:46,912 INFO L82 PathProgramCache]: Analyzing trace with hash -366957274, now seen corresponding path program 270 times [2021-06-05 20:10:46,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:46,912 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784982634] [2021-06-05 20:10:46,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:47,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:47,252 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:47,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784982634] [2021-06-05 20:10:47,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784982634] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:47,252 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:47,252 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:47,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866857993] [2021-06-05 20:10:47,252 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:47,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:47,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:47,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:47,253 INFO L87 Difference]: Start difference. First operand 9997 states and 26898 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:48,045 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:10:48,254 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:48,475 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:10:48,680 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:10:48,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:48,842 INFO L93 Difference]: Finished difference Result 17986 states and 46935 transitions. [2021-06-05 20:10:48,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:48,842 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:48,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:48,860 INFO L225 Difference]: With dead ends: 17986 [2021-06-05 20:10:48,860 INFO L226 Difference]: Without dead ends: 17986 [2021-06-05 20:10:48,860 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1415.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:48,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17986 states. [2021-06-05 20:10:49,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17986 to 9949. [2021-06-05 20:10:49,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:49,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-06-05 20:10:49,041 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-06-05 20:10:49,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:49,041 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-06-05 20:10:49,041 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:49,041 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-06-05 20:10:49,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:49,050 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:49,050 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:49,050 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-06-05 20:10:49,050 INFO L430 AbstractCegarLoop]: === Iteration 280 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:49,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:49,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1043262536, now seen corresponding path program 271 times [2021-06-05 20:10:49,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:49,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744458457] [2021-06-05 20:10:49,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:49,383 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 20:10:49,383 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:49,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744458457] [2021-06-05 20:10:49,383 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744458457] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:49,383 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:49,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:49,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034002446] [2021-06-05 20:10:49,383 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:49,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:49,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:49,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:49,384 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:50,181 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:10:50,342 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:50,520 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:50,720 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:50,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:50,893 INFO L93 Difference]: Finished difference Result 20976 states and 54714 transitions. [2021-06-05 20:10:50,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:50,893 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:50,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:50,915 INFO L225 Difference]: With dead ends: 20976 [2021-06-05 20:10:50,916 INFO L226 Difference]: Without dead ends: 20976 [2021-06-05 20:10:50,916 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1333.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:50,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20976 states. [2021-06-05 20:10:51,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20976 to 9981. [2021-06-05 20:10:51,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:51,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-05 20:10:51,113 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-05 20:10:51,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:51,113 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-05 20:10:51,113 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:51,113 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-05 20:10:51,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:51,122 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:51,122 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] [2021-06-05 20:10:51,122 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-06-05 20:10:51,122 INFO L430 AbstractCegarLoop]: === Iteration 281 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:51,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:51,123 INFO L82 PathProgramCache]: Analyzing trace with hash -45210650, now seen corresponding path program 272 times [2021-06-05 20:10:51,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:51,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128696470] [2021-06-05 20:10:51,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:51,433 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 20:10:51,434 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:51,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128696470] [2021-06-05 20:10:51,434 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128696470] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:51,434 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:51,434 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:51,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409864412] [2021-06-05 20:10:51,434 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:51,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:51,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:51,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:51,434 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:52,210 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:10:52,367 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:52,554 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:10:52,747 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:10:52,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:52,912 INFO L93 Difference]: Finished difference Result 21789 states and 56518 transitions. [2021-06-05 20:10:52,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:52,913 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:52,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:52,934 INFO L225 Difference]: With dead ends: 21789 [2021-06-05 20:10:52,934 INFO L226 Difference]: Without dead ends: 21789 [2021-06-05 20:10:52,935 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1342.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:52,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21789 states. [2021-06-05 20:10:53,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21789 to 9965. [2021-06-05 20:10:53,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6905550536986853) internal successors, (26806), 9964 states have internal predecessors, (26806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:53,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26806 transitions. [2021-06-05 20:10:53,142 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26806 transitions. Word has length 114 [2021-06-05 20:10:53,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:53,143 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26806 transitions. [2021-06-05 20:10:53,143 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:53,143 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26806 transitions. [2021-06-05 20:10:53,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:53,152 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:53,152 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] [2021-06-05 20:10:53,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-06-05 20:10:53,152 INFO L430 AbstractCegarLoop]: === Iteration 282 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:53,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:53,152 INFO L82 PathProgramCache]: Analyzing trace with hash 752652810, now seen corresponding path program 273 times [2021-06-05 20:10:53,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:53,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581232643] [2021-06-05 20:10:53,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:53,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:53,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:53,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581232643] [2021-06-05 20:10:53,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581232643] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:53,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:53,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:53,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058026730] [2021-06-05 20:10:53,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:53,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:53,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:53,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:53,463 INFO L87 Difference]: Start difference. First operand 9965 states and 26806 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:54,260 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:10:54,417 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:54,600 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:10:54,793 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:10:54,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:54,948 INFO L93 Difference]: Finished difference Result 21115 states and 54931 transitions. [2021-06-05 20:10:54,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:54,948 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:54,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:54,969 INFO L225 Difference]: With dead ends: 21115 [2021-06-05 20:10:54,969 INFO L226 Difference]: Without dead ends: 21115 [2021-06-05 20:10:54,969 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1335.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:55,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21115 states. [2021-06-05 20:10:55,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21115 to 9981. [2021-06-05 20:10:55,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:55,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-05 20:10:55,168 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-05 20:10:55,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:55,168 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-05 20:10:55,168 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:55,168 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-05 20:10:55,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:55,177 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:55,177 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] [2021-06-05 20:10:55,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-06-05 20:10:55,177 INFO L430 AbstractCegarLoop]: === Iteration 283 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:55,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:55,178 INFO L82 PathProgramCache]: Analyzing trace with hash 504105830, now seen corresponding path program 274 times [2021-06-05 20:10:55,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:55,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151175918] [2021-06-05 20:10:55,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:55,481 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 20:10:55,481 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:55,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151175918] [2021-06-05 20:10:55,482 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151175918] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:55,482 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:55,482 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:55,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547645621] [2021-06-05 20:10:55,482 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:55,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:55,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:55,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:55,482 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:56,253 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:10:56,411 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:56,585 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:56,780 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:56,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:56,916 INFO L93 Difference]: Finished difference Result 18180 states and 47457 transitions. [2021-06-05 20:10:56,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:56,916 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:56,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:56,935 INFO L225 Difference]: With dead ends: 18180 [2021-06-05 20:10:56,935 INFO L226 Difference]: Without dead ends: 18180 [2021-06-05 20:10:56,935 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1322.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:56,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18180 states. [2021-06-05 20:10:57,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18180 to 9917. [2021-06-05 20:10:57,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 9915 states have (on average 2.6896621280887545) internal successors, (26668), 9916 states have internal predecessors, (26668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:57,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 26668 transitions. [2021-06-05 20:10:57,121 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 26668 transitions. Word has length 114 [2021-06-05 20:10:57,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:57,121 INFO L482 AbstractCegarLoop]: Abstraction has 9917 states and 26668 transitions. [2021-06-05 20:10:57,121 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:57,121 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 26668 transitions. [2021-06-05 20:10:57,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:57,130 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:57,131 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] [2021-06-05 20:10:57,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-06-05 20:10:57,131 INFO L430 AbstractCegarLoop]: === Iteration 284 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:57,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:57,131 INFO L82 PathProgramCache]: Analyzing trace with hash 908060362, now seen corresponding path program 275 times [2021-06-05 20:10:57,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:57,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917223253] [2021-06-05 20:10:57,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:57,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:10:57,478 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:57,478 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917223253] [2021-06-05 20:10:57,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917223253] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:57,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:57,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:57,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793864784] [2021-06-05 20:10:57,478 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:57,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:57,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:57,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:57,478 INFO L87 Difference]: Start difference. First operand 9917 states and 26668 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:58,275 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:10:58,438 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:10:58,615 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:10:58,810 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:10:58,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:10:58,964 INFO L93 Difference]: Finished difference Result 16696 states and 43796 transitions. [2021-06-05 20:10:58,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:10:58,964 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:10:58,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:10:58,981 INFO L225 Difference]: With dead ends: 16696 [2021-06-05 20:10:58,981 INFO L226 Difference]: Without dead ends: 16696 [2021-06-05 20:10:58,982 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1347.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:10:59,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16696 states. [2021-06-05 20:10:59,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16696 to 9981. [2021-06-05 20:10:59,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:59,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-05 20:10:59,197 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-05 20:10:59,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:10:59,197 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-05 20:10:59,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:10:59,197 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-05 20:10:59,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:10:59,205 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:10:59,206 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] [2021-06-05 20:10:59,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-06-05 20:10:59,206 INFO L430 AbstractCegarLoop]: === Iteration 285 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:10:59,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:10:59,206 INFO L82 PathProgramCache]: Analyzing trace with hash -180412824, now seen corresponding path program 276 times [2021-06-05 20:10:59,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:10:59,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578291798] [2021-06-05 20:10:59,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:10:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:10:59,515 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 20:10:59,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:10:59,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578291798] [2021-06-05 20:10:59,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578291798] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:10:59,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:10:59,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:10:59,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041581022] [2021-06-05 20:10:59,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:10:59,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:10:59,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:10:59,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:10:59,516 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:00,282 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:11:00,437 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:00,622 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:11:00,810 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:11:00,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:00,952 INFO L93 Difference]: Finished difference Result 17509 states and 45600 transitions. [2021-06-05 20:11:00,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:00,952 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:00,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:00,970 INFO L225 Difference]: With dead ends: 17509 [2021-06-05 20:11:00,970 INFO L226 Difference]: Without dead ends: 17509 [2021-06-05 20:11:00,970 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1325.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:00,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17509 states. [2021-06-05 20:11:01,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17509 to 9965. [2021-06-05 20:11:01,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6905550536986853) internal successors, (26806), 9964 states have internal predecessors, (26806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:01,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26806 transitions. [2021-06-05 20:11:01,147 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26806 transitions. Word has length 114 [2021-06-05 20:11:01,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:01,147 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26806 transitions. [2021-06-05 20:11:01,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:01,147 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26806 transitions. [2021-06-05 20:11:01,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:01,156 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:01,157 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] [2021-06-05 20:11:01,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-06-05 20:11:01,157 INFO L430 AbstractCegarLoop]: === Iteration 286 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:01,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:01,157 INFO L82 PathProgramCache]: Analyzing trace with hash 617450636, now seen corresponding path program 277 times [2021-06-05 20:11:01,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:01,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481055546] [2021-06-05 20:11:01,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:01,468 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 20:11:01,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:01,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481055546] [2021-06-05 20:11:01,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481055546] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:01,468 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:01,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:01,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729772007] [2021-06-05 20:11:01,468 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:01,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:01,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:01,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:01,469 INFO L87 Difference]: Start difference. First operand 9965 states and 26806 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:02,235 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:11:02,395 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:02,577 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:11:02,768 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:11:02,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:02,921 INFO L93 Difference]: Finished difference Result 20622 states and 53550 transitions. [2021-06-05 20:11:02,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:02,921 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:02,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:02,941 INFO L225 Difference]: With dead ends: 20622 [2021-06-05 20:11:02,941 INFO L226 Difference]: Without dead ends: 20622 [2021-06-05 20:11:02,941 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1333.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:02,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20622 states. [2021-06-05 20:11:03,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20622 to 9981. [2021-06-05 20:11:03,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:03,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-05 20:11:03,129 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-05 20:11:03,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:03,129 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-05 20:11:03,129 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:03,129 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-05 20:11:03,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:03,137 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:03,138 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] [2021-06-05 20:11:03,138 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-06-05 20:11:03,138 INFO L430 AbstractCegarLoop]: === Iteration 287 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:03,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:03,138 INFO L82 PathProgramCache]: Analyzing trace with hash 368903656, now seen corresponding path program 278 times [2021-06-05 20:11:03,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:03,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86572170] [2021-06-05 20:11:03,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:03,441 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 20:11:03,441 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:03,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86572170] [2021-06-05 20:11:03,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86572170] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:03,442 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:03,442 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:03,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037982879] [2021-06-05 20:11:03,442 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:03,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:03,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:03,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:03,442 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:04,229 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:11:04,390 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:04,564 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:04,791 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:04,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:04,934 INFO L93 Difference]: Finished difference Result 17687 states and 46076 transitions. [2021-06-05 20:11:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:04,934 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:04,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:04,952 INFO L225 Difference]: With dead ends: 17687 [2021-06-05 20:11:04,952 INFO L226 Difference]: Without dead ends: 17687 [2021-06-05 20:11:04,952 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1349.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:04,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17687 states. [2021-06-05 20:11:05,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17687 to 9949. [2021-06-05 20:11:05,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:05,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-06-05 20:11:05,135 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-06-05 20:11:05,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:05,135 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-06-05 20:11:05,135 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:05,135 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-06-05 20:11:05,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:05,144 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:05,144 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] [2021-06-05 20:11:05,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-06-05 20:11:05,145 INFO L430 AbstractCegarLoop]: === Iteration 288 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:05,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:05,145 INFO L82 PathProgramCache]: Analyzing trace with hash -651366650, now seen corresponding path program 279 times [2021-06-05 20:11:05,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:05,145 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978802355] [2021-06-05 20:11:05,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:05,466 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 20:11:05,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:05,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978802355] [2021-06-05 20:11:05,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978802355] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:05,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:05,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:05,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614578843] [2021-06-05 20:11:05,466 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:05,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:05,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:05,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:05,467 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:06,246 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:11:06,419 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:06,607 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:11:06,805 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:11:06,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:06,962 INFO L93 Difference]: Finished difference Result 16819 states and 43967 transitions. [2021-06-05 20:11:06,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:06,962 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:06,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:06,979 INFO L225 Difference]: With dead ends: 16819 [2021-06-05 20:11:06,980 INFO L226 Difference]: Without dead ends: 16819 [2021-06-05 20:11:06,980 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1346.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:07,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16819 states. [2021-06-05 20:11:07,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16819 to 9997. [2021-06-05 20:11:07,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9997 states, 9995 states have (on average 2.691145572786393) internal successors, (26898), 9996 states have internal predecessors, (26898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:07,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9997 states to 9997 states and 26898 transitions. [2021-06-05 20:11:07,152 INFO L78 Accepts]: Start accepts. Automaton has 9997 states and 26898 transitions. Word has length 114 [2021-06-05 20:11:07,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:07,152 INFO L482 AbstractCegarLoop]: Abstraction has 9997 states and 26898 transitions. [2021-06-05 20:11:07,152 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:07,152 INFO L276 IsEmpty]: Start isEmpty. Operand 9997 states and 26898 transitions. [2021-06-05 20:11:07,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:07,162 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:07,162 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] [2021-06-05 20:11:07,162 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2021-06-05 20:11:07,162 INFO L430 AbstractCegarLoop]: === Iteration 289 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:07,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:07,162 INFO L82 PathProgramCache]: Analyzing trace with hash -899913630, now seen corresponding path program 280 times [2021-06-05 20:11:07,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:07,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467229907] [2021-06-05 20:11:07,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:07,479 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 20:11:07,479 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:07,479 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467229907] [2021-06-05 20:11:07,479 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467229907] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:07,480 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:07,480 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:07,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131988273] [2021-06-05 20:11:07,480 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:07,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:07,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:07,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:07,480 INFO L87 Difference]: Start difference. First operand 9997 states and 26898 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:08,243 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:11:08,413 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:08,586 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:08,782 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:08,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:08,915 INFO L93 Difference]: Finished difference Result 16659 states and 43565 transitions. [2021-06-05 20:11:08,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:08,915 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:08,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:08,932 INFO L225 Difference]: With dead ends: 16659 [2021-06-05 20:11:08,932 INFO L226 Difference]: Without dead ends: 16659 [2021-06-05 20:11:08,933 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1336.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:08,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16659 states. [2021-06-05 20:11:09,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16659 to 9981. [2021-06-05 20:11:09,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:09,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-05 20:11:09,112 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-05 20:11:09,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:09,112 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-05 20:11:09,112 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:09,112 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-05 20:11:09,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:09,121 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:09,121 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] [2021-06-05 20:11:09,121 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2021-06-05 20:11:09,121 INFO L430 AbstractCegarLoop]: === Iteration 290 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:09,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:09,122 INFO L82 PathProgramCache]: Analyzing trace with hash -2056730934, now seen corresponding path program 281 times [2021-06-05 20:11:09,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:09,122 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663314893] [2021-06-05 20:11:09,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:09,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:09,441 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:09,441 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663314893] [2021-06-05 20:11:09,441 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663314893] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:09,441 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:09,441 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:09,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636778427] [2021-06-05 20:11:09,441 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:09,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:09,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:09,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:09,441 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:10,088 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 20:11:10,230 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:11:10,376 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:11:10,560 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:10,755 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:10,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:10,875 INFO L93 Difference]: Finished difference Result 13810 states and 36305 transitions. [2021-06-05 20:11:10,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:10,876 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:10,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:10,889 INFO L225 Difference]: With dead ends: 13810 [2021-06-05 20:11:10,890 INFO L226 Difference]: Without dead ends: 13810 [2021-06-05 20:11:10,890 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1346.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:10,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13810 states. [2021-06-05 20:11:11,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13810 to 9821. [2021-06-05 20:11:11,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9821 states, 9819 states have (on average 2.68785008656686) internal successors, (26392), 9820 states have internal predecessors, (26392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:11,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9821 states to 9821 states and 26392 transitions. [2021-06-05 20:11:11,031 INFO L78 Accepts]: Start accepts. Automaton has 9821 states and 26392 transitions. Word has length 114 [2021-06-05 20:11:11,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:11,031 INFO L482 AbstractCegarLoop]: Abstraction has 9821 states and 26392 transitions. [2021-06-05 20:11:11,031 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:11,032 INFO L276 IsEmpty]: Start isEmpty. Operand 9821 states and 26392 transitions. [2021-06-05 20:11:11,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:11,040 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:11,041 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] [2021-06-05 20:11:11,041 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2021-06-05 20:11:11,041 INFO L430 AbstractCegarLoop]: === Iteration 291 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:11,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:11,041 INFO L82 PathProgramCache]: Analyzing trace with hash 105338470, now seen corresponding path program 282 times [2021-06-05 20:11:11,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:11,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023998276] [2021-06-05 20:11:11,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:11,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:11,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:11,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023998276] [2021-06-05 20:11:11,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023998276] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:11,359 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:11,359 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:11,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043414598] [2021-06-05 20:11:11,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:11,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:11,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:11,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:11,360 INFO L87 Difference]: Start difference. First operand 9821 states and 26392 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:12,145 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:11:12,295 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:11:12,486 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:12,686 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:12,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:12,848 INFO L93 Difference]: Finished difference Result 17772 states and 46792 transitions. [2021-06-05 20:11:12,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:12,849 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:12,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:12,866 INFO L225 Difference]: With dead ends: 17772 [2021-06-05 20:11:12,866 INFO L226 Difference]: Without dead ends: 17772 [2021-06-05 20:11:12,867 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1318.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:12,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17772 states. [2021-06-05 20:11:13,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17772 to 9981. [2021-06-05 20:11:13,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:13,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-05 20:11:13,032 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-05 20:11:13,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:13,032 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-05 20:11:13,033 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:13,033 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-05 20:11:13,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:13,041 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:13,041 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] [2021-06-05 20:11:13,041 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2021-06-05 20:11:13,041 INFO L430 AbstractCegarLoop]: === Iteration 292 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:13,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:13,042 INFO L82 PathProgramCache]: Analyzing trace with hash 2018575206, now seen corresponding path program 283 times [2021-06-05 20:11:13,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:13,042 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920006991] [2021-06-05 20:11:13,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:13,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:13,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:13,358 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920006991] [2021-06-05 20:11:13,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920006991] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:13,359 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:13,359 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:13,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830960216] [2021-06-05 20:11:13,359 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:13,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:13,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:13,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:13,359 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:14,127 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:11:14,298 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:14,469 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:14,669 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:14,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:14,824 INFO L93 Difference]: Finished difference Result 20300 states and 53341 transitions. [2021-06-05 20:11:14,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:14,824 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:14,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:14,845 INFO L225 Difference]: With dead ends: 20300 [2021-06-05 20:11:14,845 INFO L226 Difference]: Without dead ends: 20300 [2021-06-05 20:11:14,845 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1332.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:14,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20300 states. [2021-06-05 20:11:15,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20300 to 9997. [2021-06-05 20:11:15,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9997 states, 9995 states have (on average 2.691145572786393) internal successors, (26898), 9996 states have internal predecessors, (26898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:15,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9997 states to 9997 states and 26898 transitions. [2021-06-05 20:11:15,048 INFO L78 Accepts]: Start accepts. Automaton has 9997 states and 26898 transitions. Word has length 114 [2021-06-05 20:11:15,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:15,048 INFO L482 AbstractCegarLoop]: Abstraction has 9997 states and 26898 transitions. [2021-06-05 20:11:15,048 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:15,048 INFO L276 IsEmpty]: Start isEmpty. Operand 9997 states and 26898 transitions. [2021-06-05 20:11:15,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:15,058 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:15,058 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] [2021-06-05 20:11:15,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2021-06-05 20:11:15,058 INFO L430 AbstractCegarLoop]: === Iteration 293 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:15,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:15,058 INFO L82 PathProgramCache]: Analyzing trace with hash 930102020, now seen corresponding path program 284 times [2021-06-05 20:11:15,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:15,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368688579] [2021-06-05 20:11:15,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:15,440 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:15,441 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368688579] [2021-06-05 20:11:15,441 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368688579] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:15,441 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:15,441 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:15,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754945942] [2021-06-05 20:11:15,441 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:15,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:15,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:15,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:15,441 INFO L87 Difference]: Start difference. First operand 9997 states and 26898 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:16,226 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:11:16,401 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:16,590 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:11:16,787 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:11:16,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:16,950 INFO L93 Difference]: Finished difference Result 18640 states and 48741 transitions. [2021-06-05 20:11:16,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:16,951 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:16,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:16,970 INFO L225 Difference]: With dead ends: 18640 [2021-06-05 20:11:16,970 INFO L226 Difference]: Without dead ends: 18640 [2021-06-05 20:11:16,970 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1396.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:17,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18640 states. [2021-06-05 20:11:17,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18640 to 9949. [2021-06-05 20:11:17,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:17,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-06-05 20:11:17,155 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-06-05 20:11:17,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:17,155 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-06-05 20:11:17,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:17,155 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-06-05 20:11:17,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:17,164 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:17,164 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] [2021-06-05 20:11:17,164 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2021-06-05 20:11:17,164 INFO L430 AbstractCegarLoop]: === Iteration 294 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:17,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:17,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1954645466, now seen corresponding path program 285 times [2021-06-05 20:11:17,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:17,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154868259] [2021-06-05 20:11:17,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:17,468 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 20:11:17,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:17,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154868259] [2021-06-05 20:11:17,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154868259] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:17,468 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:17,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:17,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469392627] [2021-06-05 20:11:17,469 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:17,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:17,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:17,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:17,469 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:18,265 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:11:18,425 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:18,603 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:18,802 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:18,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:18,973 INFO L93 Difference]: Finished difference Result 21630 states and 56520 transitions. [2021-06-05 20:11:18,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:18,974 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:18,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:18,995 INFO L225 Difference]: With dead ends: 21630 [2021-06-05 20:11:18,995 INFO L226 Difference]: Without dead ends: 21630 [2021-06-05 20:11:18,995 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1319.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:19,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21630 states. [2021-06-05 20:11:19,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21630 to 9981. [2021-06-05 20:11:19,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:19,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-05 20:11:19,192 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-05 20:11:19,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:19,192 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-05 20:11:19,192 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:19,192 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-05 20:11:19,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:19,201 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:19,201 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] [2021-06-05 20:11:19,201 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2021-06-05 20:11:19,201 INFO L430 AbstractCegarLoop]: === Iteration 295 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:19,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:19,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1251848644, now seen corresponding path program 286 times [2021-06-05 20:11:19,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:19,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674633024] [2021-06-05 20:11:19,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:19,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:19,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:19,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674633024] [2021-06-05 20:11:19,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674633024] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:19,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:19,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:19,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749786402] [2021-06-05 20:11:19,510 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:19,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:19,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:19,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:19,510 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:20,303 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:11:20,463 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:20,655 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:11:20,850 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:11:21,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:21,079 INFO L93 Difference]: Finished difference Result 22443 states and 58324 transitions. [2021-06-05 20:11:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:21,080 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:21,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:21,097 INFO L225 Difference]: With dead ends: 22443 [2021-06-05 20:11:21,097 INFO L226 Difference]: Without dead ends: 22443 [2021-06-05 20:11:21,097 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1331.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:21,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22443 states. [2021-06-05 20:11:21,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22443 to 9965. [2021-06-05 20:11:21,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6905550536986853) internal successors, (26806), 9964 states have internal predecessors, (26806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:21,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26806 transitions. [2021-06-05 20:11:21,284 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26806 transitions. Word has length 114 [2021-06-05 20:11:21,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:21,285 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26806 transitions. [2021-06-05 20:11:21,285 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:21,285 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26806 transitions. [2021-06-05 20:11:21,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:21,294 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:21,294 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] [2021-06-05 20:11:21,294 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2021-06-05 20:11:21,294 INFO L430 AbstractCegarLoop]: === Iteration 296 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:21,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:21,294 INFO L82 PathProgramCache]: Analyzing trace with hash 2049712104, now seen corresponding path program 287 times [2021-06-05 20:11:21,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:21,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215933354] [2021-06-05 20:11:21,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:21,601 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:21,601 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215933354] [2021-06-05 20:11:21,601 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215933354] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:21,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:21,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:21,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210115846] [2021-06-05 20:11:21,601 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:21,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:21,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:21,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:21,602 INFO L87 Difference]: Start difference. First operand 9965 states and 26806 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:22,375 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:11:22,533 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:22,715 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:11:22,909 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:11:23,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:23,068 INFO L93 Difference]: Finished difference Result 21769 states and 56737 transitions. [2021-06-05 20:11:23,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:23,068 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:23,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:23,091 INFO L225 Difference]: With dead ends: 21769 [2021-06-05 20:11:23,091 INFO L226 Difference]: Without dead ends: 21769 [2021-06-05 20:11:23,091 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1335.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:23,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21769 states. [2021-06-05 20:11:23,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21769 to 9981. [2021-06-05 20:11:23,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:23,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-05 20:11:23,304 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-05 20:11:23,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:23,304 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-05 20:11:23,304 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:23,305 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-05 20:11:23,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:23,314 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:23,314 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] [2021-06-05 20:11:23,314 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2021-06-05 20:11:23,314 INFO L430 AbstractCegarLoop]: === Iteration 297 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:23,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:23,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1801165124, now seen corresponding path program 288 times [2021-06-05 20:11:23,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:23,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373052678] [2021-06-05 20:11:23,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:23,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:23,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:23,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373052678] [2021-06-05 20:11:23,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373052678] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:23,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:23,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:23,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395904878] [2021-06-05 20:11:23,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:23,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:23,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:23,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:23,620 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:24,418 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:11:24,580 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:24,755 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:24,955 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:25,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:25,103 INFO L93 Difference]: Finished difference Result 18834 states and 49263 transitions. [2021-06-05 20:11:25,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:25,104 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:25,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:25,124 INFO L225 Difference]: With dead ends: 18834 [2021-06-05 20:11:25,124 INFO L226 Difference]: Without dead ends: 18834 [2021-06-05 20:11:25,124 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1327.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:25,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18834 states. [2021-06-05 20:11:25,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18834 to 9917. [2021-06-05 20:11:25,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 9915 states have (on average 2.6896621280887545) internal successors, (26668), 9916 states have internal predecessors, (26668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:25,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 26668 transitions. [2021-06-05 20:11:25,314 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 26668 transitions. Word has length 114 [2021-06-05 20:11:25,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:25,314 INFO L482 AbstractCegarLoop]: Abstraction has 9917 states and 26668 transitions. [2021-06-05 20:11:25,314 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:25,314 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 26668 transitions. [2021-06-05 20:11:25,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:25,323 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:25,324 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, 1] [2021-06-05 20:11:25,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2021-06-05 20:11:25,324 INFO L430 AbstractCegarLoop]: === Iteration 298 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:25,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:25,324 INFO L82 PathProgramCache]: Analyzing trace with hash -2089847640, now seen corresponding path program 289 times [2021-06-05 20:11:25,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:25,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459840282] [2021-06-05 20:11:25,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:25,630 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 20:11:25,630 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:25,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459840282] [2021-06-05 20:11:25,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459840282] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:25,631 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:25,631 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:25,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5866016] [2021-06-05 20:11:25,631 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:25,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:25,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:25,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:25,631 INFO L87 Difference]: Start difference. First operand 9917 states and 26668 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:26,469 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:11:26,629 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:26,808 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:27,005 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:27,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:27,177 INFO L93 Difference]: Finished difference Result 22188 states and 58050 transitions. [2021-06-05 20:11:27,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:27,178 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:27,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:27,200 INFO L225 Difference]: With dead ends: 22188 [2021-06-05 20:11:27,200 INFO L226 Difference]: Without dead ends: 22188 [2021-06-05 20:11:27,200 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1327.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:27,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22188 states. [2021-06-05 20:11:27,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22188 to 9981. [2021-06-05 20:11:27,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:27,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-05 20:11:27,409 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-05 20:11:27,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:27,409 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-05 20:11:27,409 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:27,409 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-05 20:11:27,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:27,418 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:27,418 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, 1] [2021-06-05 20:11:27,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2021-06-05 20:11:27,418 INFO L430 AbstractCegarLoop]: === Iteration 299 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:27,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:27,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1116646470, now seen corresponding path program 290 times [2021-06-05 20:11:27,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:27,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084456615] [2021-06-05 20:11:27,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:27,736 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 20:11:27,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:27,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084456615] [2021-06-05 20:11:27,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084456615] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:27,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:27,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:27,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682873163] [2021-06-05 20:11:27,736 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:27,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:27,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:27,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:27,737 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:28,536 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:11:28,696 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:28,890 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:11:29,084 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:11:29,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:29,265 INFO L93 Difference]: Finished difference Result 23001 states and 59854 transitions. [2021-06-05 20:11:29,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:29,265 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:29,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:29,289 INFO L225 Difference]: With dead ends: 23001 [2021-06-05 20:11:29,290 INFO L226 Difference]: Without dead ends: 23001 [2021-06-05 20:11:29,290 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1332.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:29,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23001 states. [2021-06-05 20:11:29,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23001 to 9965. [2021-06-05 20:11:29,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6905550536986853) internal successors, (26806), 9964 states have internal predecessors, (26806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:29,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26806 transitions. [2021-06-05 20:11:29,518 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26806 transitions. Word has length 114 [2021-06-05 20:11:29,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:29,519 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26806 transitions. [2021-06-05 20:11:29,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:29,519 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26806 transitions. [2021-06-05 20:11:29,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:29,528 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:29,528 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] [2021-06-05 20:11:29,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2021-06-05 20:11:29,528 INFO L430 AbstractCegarLoop]: === Iteration 300 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:29,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:29,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1914509930, now seen corresponding path program 291 times [2021-06-05 20:11:29,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:29,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187378705] [2021-06-05 20:11:29,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:29,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:29,853 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:29,853 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187378705] [2021-06-05 20:11:29,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187378705] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:29,853 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:29,853 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:29,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827282300] [2021-06-05 20:11:29,854 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:29,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:29,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:29,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:29,854 INFO L87 Difference]: Start difference. First operand 9965 states and 26806 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:30,659 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:11:30,822 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:31,011 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:11:31,228 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:11:31,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:31,429 INFO L93 Difference]: Finished difference Result 26114 states and 67804 transitions. [2021-06-05 20:11:31,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:31,429 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:31,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:31,458 INFO L225 Difference]: With dead ends: 26114 [2021-06-05 20:11:31,458 INFO L226 Difference]: Without dead ends: 26114 [2021-06-05 20:11:31,459 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1371.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:31,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26114 states. [2021-06-05 20:11:31,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26114 to 9981. [2021-06-05 20:11:31,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:31,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-05 20:11:31,779 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-05 20:11:31,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:31,780 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-05 20:11:31,780 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:31,780 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-05 20:11:31,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:31,788 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:31,788 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] [2021-06-05 20:11:31,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2021-06-05 20:11:31,788 INFO L430 AbstractCegarLoop]: === Iteration 301 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:31,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:31,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1665962950, now seen corresponding path program 292 times [2021-06-05 20:11:31,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:31,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533205623] [2021-06-05 20:11:31,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:32,091 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 20:11:32,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:32,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533205623] [2021-06-05 20:11:32,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533205623] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:32,091 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:32,092 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:32,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627744767] [2021-06-05 20:11:32,092 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:32,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:32,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:32,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:32,092 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:32,888 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:11:33,050 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:33,230 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:33,430 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:33,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:33,603 INFO L93 Difference]: Finished difference Result 23179 states and 60330 transitions. [2021-06-05 20:11:33,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:33,604 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:33,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:33,627 INFO L225 Difference]: With dead ends: 23179 [2021-06-05 20:11:33,627 INFO L226 Difference]: Without dead ends: 23179 [2021-06-05 20:11:33,628 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1325.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:33,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23179 states. [2021-06-05 20:11:33,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23179 to 9949. [2021-06-05 20:11:33,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:33,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-06-05 20:11:33,847 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-06-05 20:11:33,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:33,847 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-06-05 20:11:33,847 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:33,847 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-06-05 20:11:33,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:33,856 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:33,856 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] [2021-06-05 20:11:33,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2021-06-05 20:11:33,856 INFO L430 AbstractCegarLoop]: === Iteration 302 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:33,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:33,857 INFO L82 PathProgramCache]: Analyzing trace with hash 645692644, now seen corresponding path program 293 times [2021-06-05 20:11:33,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:33,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655454099] [2021-06-05 20:11:33,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:34,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:34,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:34,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655454099] [2021-06-05 20:11:34,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655454099] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:34,179 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:34,179 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:34,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13798856] [2021-06-05 20:11:34,180 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:34,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:34,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:34,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:34,180 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:34,971 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:11:35,147 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:35,338 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:11:35,540 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:11:35,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:35,717 INFO L93 Difference]: Finished difference Result 22311 states and 58221 transitions. [2021-06-05 20:11:35,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:35,717 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:35,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:35,739 INFO L225 Difference]: With dead ends: 22311 [2021-06-05 20:11:35,740 INFO L226 Difference]: Without dead ends: 22311 [2021-06-05 20:11:35,740 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1353.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:35,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22311 states. [2021-06-05 20:11:35,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22311 to 9997. [2021-06-05 20:11:35,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9997 states, 9995 states have (on average 2.691145572786393) internal successors, (26898), 9996 states have internal predecessors, (26898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:35,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9997 states to 9997 states and 26898 transitions. [2021-06-05 20:11:35,945 INFO L78 Accepts]: Start accepts. Automaton has 9997 states and 26898 transitions. Word has length 114 [2021-06-05 20:11:35,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:35,945 INFO L482 AbstractCegarLoop]: Abstraction has 9997 states and 26898 transitions. [2021-06-05 20:11:35,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:35,945 INFO L276 IsEmpty]: Start isEmpty. Operand 9997 states and 26898 transitions. [2021-06-05 20:11:35,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:35,954 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:35,954 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] [2021-06-05 20:11:35,954 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2021-06-05 20:11:35,954 INFO L430 AbstractCegarLoop]: === Iteration 303 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:35,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:35,955 INFO L82 PathProgramCache]: Analyzing trace with hash 397145664, now seen corresponding path program 294 times [2021-06-05 20:11:35,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:35,955 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343672532] [2021-06-05 20:11:35,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:36,271 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 20:11:36,271 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:36,271 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343672532] [2021-06-05 20:11:36,272 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343672532] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:36,272 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:36,272 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:36,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511566446] [2021-06-05 20:11:36,272 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:36,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:36,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:36,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:36,272 INFO L87 Difference]: Start difference. First operand 9997 states and 26898 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:37,048 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:11:37,220 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:37,427 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:37,624 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:37,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:37,771 INFO L93 Difference]: Finished difference Result 22151 states and 57819 transitions. [2021-06-05 20:11:37,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:37,771 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:37,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:37,793 INFO L225 Difference]: With dead ends: 22151 [2021-06-05 20:11:37,793 INFO L226 Difference]: Without dead ends: 22151 [2021-06-05 20:11:37,793 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1374.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:37,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22151 states. [2021-06-05 20:11:37,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22151 to 9981. [2021-06-05 20:11:37,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:37,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-05 20:11:37,997 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-05 20:11:37,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:37,997 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-05 20:11:37,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:37,997 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-05 20:11:38,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:38,007 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:38,007 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] [2021-06-05 20:11:38,007 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2021-06-05 20:11:38,007 INFO L430 AbstractCegarLoop]: === Iteration 304 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:38,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:38,007 INFO L82 PathProgramCache]: Analyzing trace with hash -759671640, now seen corresponding path program 295 times [2021-06-05 20:11:38,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:38,007 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639895217] [2021-06-05 20:11:38,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:38,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:38,328 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:38,328 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639895217] [2021-06-05 20:11:38,328 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639895217] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:38,328 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:38,328 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:38,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013219652] [2021-06-05 20:11:38,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:38,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:38,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:38,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:38,329 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:39,131 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:11:39,282 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:11:39,475 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:39,677 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:39,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:39,829 INFO L93 Difference]: Finished difference Result 19302 states and 50559 transitions. [2021-06-05 20:11:39,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:39,830 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:39,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:39,850 INFO L225 Difference]: With dead ends: 19302 [2021-06-05 20:11:39,850 INFO L226 Difference]: Without dead ends: 19302 [2021-06-05 20:11:39,850 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1335.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:39,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19302 states. [2021-06-05 20:11:40,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19302 to 9853. [2021-06-05 20:11:40,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9853 states, 9851 states have (on average 2.688458024566034) internal successors, (26484), 9852 states have internal predecessors, (26484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:40,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9853 states to 9853 states and 26484 transitions. [2021-06-05 20:11:40,035 INFO L78 Accepts]: Start accepts. Automaton has 9853 states and 26484 transitions. Word has length 114 [2021-06-05 20:11:40,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:40,035 INFO L482 AbstractCegarLoop]: Abstraction has 9853 states and 26484 transitions. [2021-06-05 20:11:40,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:40,035 INFO L276 IsEmpty]: Start isEmpty. Operand 9853 states and 26484 transitions. [2021-06-05 20:11:40,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:40,045 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:40,045 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] [2021-06-05 20:11:40,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2021-06-05 20:11:40,045 INFO L430 AbstractCegarLoop]: === Iteration 305 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:40,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:40,045 INFO L82 PathProgramCache]: Analyzing trace with hash 381813514, now seen corresponding path program 296 times [2021-06-05 20:11:40,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:40,045 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489746196] [2021-06-05 20:11:40,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:40,350 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 20:11:40,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:40,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489746196] [2021-06-05 20:11:40,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489746196] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:40,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:40,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:40,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34304344] [2021-06-05 20:11:40,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:40,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:40,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:40,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:40,351 INFO L87 Difference]: Start difference. First operand 9853 states and 26484 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:41,127 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:11:41,286 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:41,460 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:41,655 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:41,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:41,802 INFO L93 Difference]: Finished difference Result 17286 states and 45418 transitions. [2021-06-05 20:11:41,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:41,802 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:41,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:41,820 INFO L225 Difference]: With dead ends: 17286 [2021-06-05 20:11:41,820 INFO L226 Difference]: Without dead ends: 17286 [2021-06-05 20:11:41,820 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1328.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:41,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17286 states. [2021-06-05 20:11:41,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17286 to 9933. [2021-06-05 20:11:41,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:41,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-06-05 20:11:41,997 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-06-05 20:11:41,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:41,997 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-06-05 20:11:41,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:41,997 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-06-05 20:11:42,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:42,006 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:42,006 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] [2021-06-05 20:11:42,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2021-06-05 20:11:42,007 INFO L430 AbstractCegarLoop]: === Iteration 306 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:42,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:42,007 INFO L82 PathProgramCache]: Analyzing trace with hash -706659672, now seen corresponding path program 297 times [2021-06-05 20:11:42,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:42,007 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607837611] [2021-06-05 20:11:42,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:42,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:42,317 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:42,317 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607837611] [2021-06-05 20:11:42,317 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607837611] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:42,317 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:42,317 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:42,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552348762] [2021-06-05 20:11:42,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:42,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:42,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:42,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:42,318 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:43,141 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:11:43,302 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:43,494 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:11:43,688 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:11:43,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:43,850 INFO L93 Difference]: Finished difference Result 18099 states and 47222 transitions. [2021-06-05 20:11:43,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:43,851 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:43,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:43,870 INFO L225 Difference]: With dead ends: 18099 [2021-06-05 20:11:43,870 INFO L226 Difference]: Without dead ends: 18099 [2021-06-05 20:11:43,871 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1366.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:43,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18099 states. [2021-06-05 20:11:44,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18099 to 9917. [2021-06-05 20:11:44,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 9915 states have (on average 2.6896621280887545) internal successors, (26668), 9916 states have internal predecessors, (26668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:44,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 26668 transitions. [2021-06-05 20:11:44,062 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 26668 transitions. Word has length 114 [2021-06-05 20:11:44,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:44,062 INFO L482 AbstractCegarLoop]: Abstraction has 9917 states and 26668 transitions. [2021-06-05 20:11:44,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:44,062 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 26668 transitions. [2021-06-05 20:11:44,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:44,073 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:44,073 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] [2021-06-05 20:11:44,073 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2021-06-05 20:11:44,073 INFO L430 AbstractCegarLoop]: === Iteration 307 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:44,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:44,073 INFO L82 PathProgramCache]: Analyzing trace with hash 91203788, now seen corresponding path program 298 times [2021-06-05 20:11:44,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:44,073 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661272977] [2021-06-05 20:11:44,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:44,386 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 20:11:44,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:44,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661272977] [2021-06-05 20:11:44,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661272977] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:44,387 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:44,387 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:44,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044899538] [2021-06-05 20:11:44,387 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:44,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:44,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:44,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:44,387 INFO L87 Difference]: Start difference. First operand 9917 states and 26668 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:45,177 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:11:45,340 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:45,527 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:11:45,725 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:11:45,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:45,902 INFO L93 Difference]: Finished difference Result 21212 states and 55172 transitions. [2021-06-05 20:11:45,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:45,902 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:45,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:45,924 INFO L225 Difference]: With dead ends: 21212 [2021-06-05 20:11:45,924 INFO L226 Difference]: Without dead ends: 21212 [2021-06-05 20:11:45,924 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1339.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:45,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21212 states. [2021-06-05 20:11:46,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21212 to 9933. [2021-06-05 20:11:46,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:46,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-06-05 20:11:46,129 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-06-05 20:11:46,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:46,129 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-06-05 20:11:46,129 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:46,129 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-06-05 20:11:46,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:46,138 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:46,138 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] [2021-06-05 20:11:46,138 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2021-06-05 20:11:46,138 INFO L430 AbstractCegarLoop]: === Iteration 308 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:46,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:46,138 INFO L82 PathProgramCache]: Analyzing trace with hash -157343192, now seen corresponding path program 299 times [2021-06-05 20:11:46,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:46,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619420348] [2021-06-05 20:11:46,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:46,443 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:46,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619420348] [2021-06-05 20:11:46,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619420348] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:46,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:46,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:46,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12651262] [2021-06-05 20:11:46,443 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:46,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:46,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:46,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:46,444 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:47,218 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:11:47,380 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:47,553 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:47,749 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:47,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:47,887 INFO L93 Difference]: Finished difference Result 18277 states and 47698 transitions. [2021-06-05 20:11:47,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:47,887 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:47,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:47,906 INFO L225 Difference]: With dead ends: 18277 [2021-06-05 20:11:47,906 INFO L226 Difference]: Without dead ends: 18277 [2021-06-05 20:11:47,907 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1332.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:47,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18277 states. [2021-06-05 20:11:48,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18277 to 9901. [2021-06-05 20:11:48,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9901 states, 9899 states have (on average 2.689362561874937) internal successors, (26622), 9900 states have internal predecessors, (26622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:48,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9901 states to 9901 states and 26622 transitions. [2021-06-05 20:11:48,098 INFO L78 Accepts]: Start accepts. Automaton has 9901 states and 26622 transitions. Word has length 114 [2021-06-05 20:11:48,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:48,099 INFO L482 AbstractCegarLoop]: Abstraction has 9901 states and 26622 transitions. [2021-06-05 20:11:48,099 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:48,099 INFO L276 IsEmpty]: Start isEmpty. Operand 9901 states and 26622 transitions. [2021-06-05 20:11:48,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:48,162 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:48,162 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] [2021-06-05 20:11:48,162 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2021-06-05 20:11:48,162 INFO L430 AbstractCegarLoop]: === Iteration 309 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:48,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:48,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1177613498, now seen corresponding path program 300 times [2021-06-05 20:11:48,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:48,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96118839] [2021-06-05 20:11:48,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:48,485 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 20:11:48,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:48,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96118839] [2021-06-05 20:11:48,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96118839] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:48,486 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:48,486 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:48,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282558838] [2021-06-05 20:11:48,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:48,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:48,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:48,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:48,486 INFO L87 Difference]: Start difference. First operand 9901 states and 26622 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:49,247 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:11:49,418 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:49,603 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:11:49,797 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:11:49,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:49,956 INFO L93 Difference]: Finished difference Result 21722 states and 56564 transitions. [2021-06-05 20:11:49,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:49,956 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:49,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:49,979 INFO L225 Difference]: With dead ends: 21722 [2021-06-05 20:11:49,979 INFO L226 Difference]: Without dead ends: 21722 [2021-06-05 20:11:49,980 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1349.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:50,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21722 states. [2021-06-05 20:11:50,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21722 to 9949. [2021-06-05 20:11:50,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:50,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-06-05 20:11:50,185 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-06-05 20:11:50,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:50,185 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-06-05 20:11:50,185 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:50,185 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-06-05 20:11:50,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:50,195 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:50,195 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] [2021-06-05 20:11:50,195 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2021-06-05 20:11:50,195 INFO L430 AbstractCegarLoop]: === Iteration 310 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:50,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:50,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1426160478, now seen corresponding path program 301 times [2021-06-05 20:11:50,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:50,195 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604802283] [2021-06-05 20:11:50,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:50,513 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 20:11:50,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:50,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604802283] [2021-06-05 20:11:50,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604802283] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:50,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:50,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:50,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264401074] [2021-06-05 20:11:50,513 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:50,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:50,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:50,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:50,514 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:51,295 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:11:51,470 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:51,646 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:51,848 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:52,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:52,014 INFO L93 Difference]: Finished difference Result 21562 states and 56162 transitions. [2021-06-05 20:11:52,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:52,014 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:52,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:52,035 INFO L225 Difference]: With dead ends: 21562 [2021-06-05 20:11:52,035 INFO L226 Difference]: Without dead ends: 21562 [2021-06-05 20:11:52,035 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1339.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:52,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21562 states. [2021-06-05 20:11:52,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21562 to 9933. [2021-06-05 20:11:52,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:52,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-06-05 20:11:52,239 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-06-05 20:11:52,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:52,239 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-06-05 20:11:52,239 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:52,239 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-06-05 20:11:52,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:52,248 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:52,248 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] [2021-06-05 20:11:52,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2021-06-05 20:11:52,248 INFO L430 AbstractCegarLoop]: === Iteration 311 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:52,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:52,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1711989514, now seen corresponding path program 302 times [2021-06-05 20:11:52,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:52,248 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927342338] [2021-06-05 20:11:52,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:52,588 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 20:11:52,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:52,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927342338] [2021-06-05 20:11:52,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927342338] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:52,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:52,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:52,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549405989] [2021-06-05 20:11:52,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:52,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:52,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:52,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:52,589 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:53,356 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:11:53,503 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:11:53,693 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:53,917 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:54,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:54,072 INFO L93 Difference]: Finished difference Result 18713 states and 48902 transitions. [2021-06-05 20:11:54,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:54,073 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:54,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:54,091 INFO L225 Difference]: With dead ends: 18713 [2021-06-05 20:11:54,091 INFO L226 Difference]: Without dead ends: 18713 [2021-06-05 20:11:54,092 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1331.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:54,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18713 states. [2021-06-05 20:11:54,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18713 to 9869. [2021-06-05 20:11:54,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9869 states, 9867 states have (on average 2.6887605148474716) internal successors, (26530), 9868 states have internal predecessors, (26530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:54,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9869 states to 9869 states and 26530 transitions. [2021-06-05 20:11:54,271 INFO L78 Accepts]: Start accepts. Automaton has 9869 states and 26530 transitions. Word has length 114 [2021-06-05 20:11:54,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:54,271 INFO L482 AbstractCegarLoop]: Abstraction has 9869 states and 26530 transitions. [2021-06-05 20:11:54,271 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:54,271 INFO L276 IsEmpty]: Start isEmpty. Operand 9869 states and 26530 transitions. [2021-06-05 20:11:54,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:54,280 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:54,280 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] [2021-06-05 20:11:54,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2021-06-05 20:11:54,280 INFO L430 AbstractCegarLoop]: === Iteration 312 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:54,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:54,280 INFO L82 PathProgramCache]: Analyzing trace with hash -773253916, now seen corresponding path program 303 times [2021-06-05 20:11:54,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:54,280 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372719923] [2021-06-05 20:11:54,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:54,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:54,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:54,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372719923] [2021-06-05 20:11:54,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372719923] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:54,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:54,611 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:54,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707713822] [2021-06-05 20:11:54,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:54,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:54,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:54,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:54,612 INFO L87 Difference]: Start difference. First operand 9869 states and 26530 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:55,366 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:11:55,534 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:55,720 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:11:55,912 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:11:56,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:56,052 INFO L93 Difference]: Finished difference Result 17377 states and 45497 transitions. [2021-06-05 20:11:56,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:56,052 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:56,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:56,070 INFO L225 Difference]: With dead ends: 17377 [2021-06-05 20:11:56,070 INFO L226 Difference]: Without dead ends: 17377 [2021-06-05 20:11:56,070 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1352.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:56,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17377 states. [2021-06-05 20:11:56,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17377 to 9933. [2021-06-05 20:11:56,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:56,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-06-05 20:11:56,233 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-06-05 20:11:56,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:56,234 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-06-05 20:11:56,234 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:56,234 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-06-05 20:11:56,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:56,242 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:56,243 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] [2021-06-05 20:11:56,243 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2021-06-05 20:11:56,243 INFO L430 AbstractCegarLoop]: === Iteration 313 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:56,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:56,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1021800896, now seen corresponding path program 304 times [2021-06-05 20:11:56,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:56,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272011783] [2021-06-05 20:11:56,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:56,570 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 20:11:56,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:56,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272011783] [2021-06-05 20:11:56,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272011783] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:56,570 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:56,570 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:56,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124820114] [2021-06-05 20:11:56,571 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:56,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:56,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:56,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:56,571 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:57,342 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:11:57,514 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:11:57,694 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:57,895 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:11:58,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:11:58,038 INFO L93 Difference]: Finished difference Result 17217 states and 45095 transitions. [2021-06-05 20:11:58,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:11:58,038 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:11:58,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:11:58,055 INFO L225 Difference]: With dead ends: 17217 [2021-06-05 20:11:58,055 INFO L226 Difference]: Without dead ends: 17217 [2021-06-05 20:11:58,055 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1340.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:11:58,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17217 states. [2021-06-05 20:11:58,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17217 to 9917. [2021-06-05 20:11:58,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 9915 states have (on average 2.6896621280887545) internal successors, (26668), 9916 states have internal predecessors, (26668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:58,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 26668 transitions. [2021-06-05 20:11:58,215 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 26668 transitions. Word has length 114 [2021-06-05 20:11:58,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:11:58,215 INFO L482 AbstractCegarLoop]: Abstraction has 9917 states and 26668 transitions. [2021-06-05 20:11:58,215 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:58,215 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 26668 transitions. [2021-06-05 20:11:58,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:11:58,224 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:11:58,224 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] [2021-06-05 20:11:58,224 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2021-06-05 20:11:58,224 INFO L430 AbstractCegarLoop]: === Iteration 314 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:11:58,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:11:58,224 INFO L82 PathProgramCache]: Analyzing trace with hash 2116349096, now seen corresponding path program 305 times [2021-06-05 20:11:58,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:11:58,224 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985902455] [2021-06-05 20:11:58,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:11:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:11:58,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:11:58,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:11:58,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985902455] [2021-06-05 20:11:58,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985902455] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:11:58,557 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:11:58,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:11:58,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968445260] [2021-06-05 20:11:58,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:11:58,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:11:58,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:11:58,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:11:58,557 INFO L87 Difference]: Start difference. First operand 9917 states and 26668 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:11:59,364 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:11:59,511 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:11:59,705 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:11:59,907 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:00,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:00,053 INFO L93 Difference]: Finished difference Result 17505 states and 45923 transitions. [2021-06-05 20:12:00,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:00,054 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:00,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:00,071 INFO L225 Difference]: With dead ends: 17505 [2021-06-05 20:12:00,071 INFO L226 Difference]: Without dead ends: 17505 [2021-06-05 20:12:00,071 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1338.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:00,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17505 states. [2021-06-05 20:12:00,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17505 to 9885. [2021-06-05 20:12:00,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9885 states, 9883 states have (on average 2.6890620257006983) internal successors, (26576), 9884 states have internal predecessors, (26576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:00,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9885 states to 9885 states and 26576 transitions. [2021-06-05 20:12:00,226 INFO L78 Accepts]: Start accepts. Automaton has 9885 states and 26576 transitions. Word has length 114 [2021-06-05 20:12:00,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:00,226 INFO L482 AbstractCegarLoop]: Abstraction has 9885 states and 26576 transitions. [2021-06-05 20:12:00,226 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:00,226 INFO L276 IsEmpty]: Start isEmpty. Operand 9885 states and 26576 transitions. [2021-06-05 20:12:00,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:00,235 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:00,235 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] [2021-06-05 20:12:00,235 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2021-06-05 20:12:00,235 INFO L430 AbstractCegarLoop]: === Iteration 315 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:00,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:00,235 INFO L82 PathProgramCache]: Analyzing trace with hash -470435062, now seen corresponding path program 306 times [2021-06-05 20:12:00,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:00,236 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124133947] [2021-06-05 20:12:00,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:00,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:00,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:00,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124133947] [2021-06-05 20:12:00,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124133947] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:00,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:00,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:00,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148780911] [2021-06-05 20:12:00,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:00,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:00,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:00,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:00,656 INFO L87 Difference]: Start difference. First operand 9885 states and 26576 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:01,411 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:12:01,554 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:12:01,742 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:01,937 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:02,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:02,064 INFO L93 Difference]: Finished difference Result 14220 states and 37459 transitions. [2021-06-05 20:12:02,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:02,065 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:02,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:02,078 INFO L225 Difference]: With dead ends: 14220 [2021-06-05 20:12:02,079 INFO L226 Difference]: Without dead ends: 14220 [2021-06-05 20:12:02,079 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1390.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:02,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14220 states. [2021-06-05 20:12:02,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14220 to 9805. [2021-06-05 20:12:02,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9805 states, 9803 states have (on average 2.6875446291951444) internal successors, (26346), 9804 states have internal predecessors, (26346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:02,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9805 states to 9805 states and 26346 transitions. [2021-06-05 20:12:02,218 INFO L78 Accepts]: Start accepts. Automaton has 9805 states and 26346 transitions. Word has length 114 [2021-06-05 20:12:02,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:02,218 INFO L482 AbstractCegarLoop]: Abstraction has 9805 states and 26346 transitions. [2021-06-05 20:12:02,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:02,218 INFO L276 IsEmpty]: Start isEmpty. Operand 9805 states and 26346 transitions. [2021-06-05 20:12:02,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:02,227 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:02,227 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] [2021-06-05 20:12:02,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-06-05 20:12:02,227 INFO L430 AbstractCegarLoop]: === Iteration 316 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:02,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:02,227 INFO L82 PathProgramCache]: Analyzing trace with hash 763696812, now seen corresponding path program 307 times [2021-06-05 20:12:02,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:02,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81844399] [2021-06-05 20:12:02,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:02,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:02,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:02,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81844399] [2021-06-05 20:12:02,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81844399] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:02,547 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:02,547 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:02,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730657000] [2021-06-05 20:12:02,547 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:02,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:02,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:02,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:02,548 INFO L87 Difference]: Start difference. First operand 9805 states and 26346 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:03,325 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:12:03,476 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:12:03,660 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:03,857 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:03,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:03,995 INFO L93 Difference]: Finished difference Result 11671 states and 30825 transitions. [2021-06-05 20:12:03,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:03,995 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:03,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:04,006 INFO L225 Difference]: With dead ends: 11671 [2021-06-05 20:12:04,006 INFO L226 Difference]: Without dead ends: 11671 [2021-06-05 20:12:04,006 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1324.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:04,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11671 states. [2021-06-05 20:12:04,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11671 to 9629. [2021-06-05 20:12:04,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:04,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-06-05 20:12:04,132 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-06-05 20:12:04,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:04,132 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-06-05 20:12:04,132 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:04,132 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-06-05 20:12:04,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:04,140 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:04,140 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] [2021-06-05 20:12:04,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-06-05 20:12:04,140 INFO L430 AbstractCegarLoop]: === Iteration 317 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:04,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:04,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1618033748, now seen corresponding path program 308 times [2021-06-05 20:12:04,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:04,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940669642] [2021-06-05 20:12:04,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:04,460 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 20:12:04,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:04,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940669642] [2021-06-05 20:12:04,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940669642] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:04,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:04,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:04,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55522222] [2021-06-05 20:12:04,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:04,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:04,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:04,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:04,461 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:05,273 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:12:05,447 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:05,621 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:05,821 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:05,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:05,965 INFO L93 Difference]: Finished difference Result 14199 states and 37374 transitions. [2021-06-05 20:12:05,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:05,965 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:05,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:05,981 INFO L225 Difference]: With dead ends: 14199 [2021-06-05 20:12:05,981 INFO L226 Difference]: Without dead ends: 14199 [2021-06-05 20:12:05,981 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1368.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:06,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14199 states. [2021-06-05 20:12:06,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14199 to 9645. [2021-06-05 20:12:06,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9645 states, 9643 states have (on average 2.683812091672716) internal successors, (25880), 9644 states have internal predecessors, (25880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:06,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9645 states to 9645 states and 25880 transitions. [2021-06-05 20:12:06,135 INFO L78 Accepts]: Start accepts. Automaton has 9645 states and 25880 transitions. Word has length 114 [2021-06-05 20:12:06,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:06,136 INFO L482 AbstractCegarLoop]: Abstraction has 9645 states and 25880 transitions. [2021-06-05 20:12:06,136 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:06,136 INFO L276 IsEmpty]: Start isEmpty. Operand 9645 states and 25880 transitions. [2021-06-05 20:12:06,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:06,147 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:06,147 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] [2021-06-05 20:12:06,147 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2021-06-05 20:12:06,148 INFO L430 AbstractCegarLoop]: === Iteration 318 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:06,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:06,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1588460362, now seen corresponding path program 309 times [2021-06-05 20:12:06,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:06,148 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519409399] [2021-06-05 20:12:06,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:06,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:06,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:06,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519409399] [2021-06-05 20:12:06,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519409399] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:06,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:06,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:06,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77950332] [2021-06-05 20:12:06,475 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:06,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:06,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:06,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:06,476 INFO L87 Difference]: Start difference. First operand 9645 states and 25880 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:07,259 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:12:07,434 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:07,624 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:12:07,823 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:12:07,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:07,969 INFO L93 Difference]: Finished difference Result 12539 states and 32774 transitions. [2021-06-05 20:12:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:07,969 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:07,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:07,983 INFO L225 Difference]: With dead ends: 12539 [2021-06-05 20:12:07,983 INFO L226 Difference]: Without dead ends: 12539 [2021-06-05 20:12:07,983 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1363.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:08,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12539 states. [2021-06-05 20:12:08,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12539 to 9597. [2021-06-05 20:12:08,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9595 states have (on average 2.682855653986451) internal successors, (25742), 9596 states have internal predecessors, (25742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:08,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 25742 transitions. [2021-06-05 20:12:08,125 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 25742 transitions. Word has length 114 [2021-06-05 20:12:08,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:08,126 INFO L482 AbstractCegarLoop]: Abstraction has 9597 states and 25742 transitions. [2021-06-05 20:12:08,126 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:08,126 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 25742 transitions. [2021-06-05 20:12:08,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:08,134 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:08,134 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] [2021-06-05 20:12:08,134 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2021-06-05 20:12:08,135 INFO L430 AbstractCegarLoop]: === Iteration 319 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:08,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:08,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1296287124, now seen corresponding path program 310 times [2021-06-05 20:12:08,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:08,135 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770295872] [2021-06-05 20:12:08,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:08,445 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 20:12:08,445 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:08,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770295872] [2021-06-05 20:12:08,445 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770295872] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:08,445 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:08,445 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:08,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315741662] [2021-06-05 20:12:08,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:08,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:08,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:08,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:08,446 INFO L87 Difference]: Start difference. First operand 9597 states and 25742 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:09,239 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:12:09,400 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:09,576 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:09,776 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:09,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:09,931 INFO L93 Difference]: Finished difference Result 15529 states and 40553 transitions. [2021-06-05 20:12:09,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:09,931 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:09,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:09,948 INFO L225 Difference]: With dead ends: 15529 [2021-06-05 20:12:09,949 INFO L226 Difference]: Without dead ends: 15529 [2021-06-05 20:12:09,949 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1341.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:09,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15529 states. [2021-06-05 20:12:10,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15529 to 9629. [2021-06-05 20:12:10,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:10,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-06-05 20:12:10,128 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-06-05 20:12:10,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:10,128 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-06-05 20:12:10,129 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:10,129 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-06-05 20:12:10,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:10,138 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:10,138 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] [2021-06-05 20:12:10,138 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2021-06-05 20:12:10,138 INFO L430 AbstractCegarLoop]: === Iteration 320 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:10,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:10,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1910206986, now seen corresponding path program 311 times [2021-06-05 20:12:10,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:10,139 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345695139] [2021-06-05 20:12:10,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:10,508 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 20:12:10,508 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:10,508 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345695139] [2021-06-05 20:12:10,508 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345695139] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:10,508 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:10,508 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:10,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585752637] [2021-06-05 20:12:10,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:10,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:10,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:10,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:10,509 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:11,282 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:12:11,439 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:11,626 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:12:11,819 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:12:11,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:11,963 INFO L93 Difference]: Finished difference Result 16342 states and 42357 transitions. [2021-06-05 20:12:11,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:11,964 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:11,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:11,981 INFO L225 Difference]: With dead ends: 16342 [2021-06-05 20:12:11,981 INFO L226 Difference]: Without dead ends: 16342 [2021-06-05 20:12:11,981 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1348.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:12,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16342 states. [2021-06-05 20:12:12,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16342 to 9613. [2021-06-05 20:12:12,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9613 states, 9611 states have (on average 2.6831755280407865) internal successors, (25788), 9612 states have internal predecessors, (25788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:12,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9613 states to 9613 states and 25788 transitions. [2021-06-05 20:12:12,158 INFO L78 Accepts]: Start accepts. Automaton has 9613 states and 25788 transitions. Word has length 114 [2021-06-05 20:12:12,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:12,158 INFO L482 AbstractCegarLoop]: Abstraction has 9613 states and 25788 transitions. [2021-06-05 20:12:12,158 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:12,158 INFO L276 IsEmpty]: Start isEmpty. Operand 9613 states and 25788 transitions. [2021-06-05 20:12:12,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:12,167 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:12,167 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] [2021-06-05 20:12:12,167 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2021-06-05 20:12:12,167 INFO L430 AbstractCegarLoop]: === Iteration 321 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:12,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:12,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1586896850, now seen corresponding path program 312 times [2021-06-05 20:12:12,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:12,168 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802641260] [2021-06-05 20:12:12,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:12,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:12,478 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:12,478 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802641260] [2021-06-05 20:12:12,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802641260] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:12,479 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:12,479 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:12,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083970872] [2021-06-05 20:12:12,479 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:12,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:12,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:12,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:12,479 INFO L87 Difference]: Start difference. First operand 9613 states and 25788 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:13,268 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:12:13,428 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:13,614 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:12:13,814 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:12:13,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:13,976 INFO L93 Difference]: Finished difference Result 15668 states and 40770 transitions. [2021-06-05 20:12:13,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:13,976 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:13,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:13,993 INFO L225 Difference]: With dead ends: 15668 [2021-06-05 20:12:13,994 INFO L226 Difference]: Without dead ends: 15668 [2021-06-05 20:12:13,994 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1342.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:14,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15668 states. [2021-06-05 20:12:14,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15668 to 9629. [2021-06-05 20:12:14,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:14,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-06-05 20:12:14,167 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-06-05 20:12:14,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:14,167 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-06-05 20:12:14,167 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:14,167 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-06-05 20:12:14,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:14,176 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:14,176 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] [2021-06-05 20:12:14,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2021-06-05 20:12:14,176 INFO L430 AbstractCegarLoop]: === Iteration 322 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:14,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:14,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1835443830, now seen corresponding path program 313 times [2021-06-05 20:12:14,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:14,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114347782] [2021-06-05 20:12:14,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:14,487 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 20:12:14,487 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:14,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114347782] [2021-06-05 20:12:14,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114347782] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:14,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:14,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:14,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119211495] [2021-06-05 20:12:14,488 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:14,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:14,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:14,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:14,488 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:15,275 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:12:15,435 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:15,610 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:15,811 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:15,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:15,940 INFO L93 Difference]: Finished difference Result 12733 states and 33296 transitions. [2021-06-05 20:12:15,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:15,941 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:15,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:15,954 INFO L225 Difference]: With dead ends: 12733 [2021-06-05 20:12:15,954 INFO L226 Difference]: Without dead ends: 12733 [2021-06-05 20:12:15,954 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1331.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:15,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12733 states. [2021-06-05 20:12:16,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12733 to 9565. [2021-06-05 20:12:16,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9565 states, 9563 states have (on average 2.6822126947610583) internal successors, (25650), 9564 states have internal predecessors, (25650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:16,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9565 states to 9565 states and 25650 transitions. [2021-06-05 20:12:16,131 INFO L78 Accepts]: Start accepts. Automaton has 9565 states and 25650 transitions. Word has length 114 [2021-06-05 20:12:16,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:16,131 INFO L482 AbstractCegarLoop]: Abstraction has 9565 states and 25650 transitions. [2021-06-05 20:12:16,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:16,131 INFO L276 IsEmpty]: Start isEmpty. Operand 9565 states and 25650 transitions. [2021-06-05 20:12:16,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:16,140 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:16,140 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] [2021-06-05 20:12:16,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2021-06-05 20:12:16,140 INFO L430 AbstractCegarLoop]: === Iteration 323 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:16,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:16,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1431489298, now seen corresponding path program 314 times [2021-06-05 20:12:16,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:16,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302385181] [2021-06-05 20:12:16,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:16,447 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 20:12:16,447 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:16,448 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302385181] [2021-06-05 20:12:16,448 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302385181] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:16,448 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:16,448 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:16,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086946010] [2021-06-05 20:12:16,448 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:16,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:16,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:16,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:16,448 INFO L87 Difference]: Start difference. First operand 9565 states and 25650 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:17,225 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:12:17,383 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:17,557 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:17,752 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:17,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:17,899 INFO L93 Difference]: Finished difference Result 16087 states and 42083 transitions. [2021-06-05 20:12:17,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:17,900 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:17,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:17,917 INFO L225 Difference]: With dead ends: 16087 [2021-06-05 20:12:17,917 INFO L226 Difference]: Without dead ends: 16087 [2021-06-05 20:12:17,917 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1334.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:17,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16087 states. [2021-06-05 20:12:18,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16087 to 9629. [2021-06-05 20:12:18,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:18,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-06-05 20:12:18,084 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-06-05 20:12:18,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:18,084 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-06-05 20:12:18,084 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-06-05 20:12:18,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:18,093 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:18,093 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] [2021-06-05 20:12:18,093 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2021-06-05 20:12:18,093 INFO L430 AbstractCegarLoop]: === Iteration 324 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:18,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:18,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1775004812, now seen corresponding path program 315 times [2021-06-05 20:12:18,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:18,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703949346] [2021-06-05 20:12:18,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:18,405 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 20:12:18,405 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:18,405 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703949346] [2021-06-05 20:12:18,406 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703949346] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:18,406 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:18,406 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:18,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197501186] [2021-06-05 20:12:18,406 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:18,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:18,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:18,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:18,406 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:19,179 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:12:19,335 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:19,524 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:12:19,714 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:12:19,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:19,857 INFO L93 Difference]: Finished difference Result 16900 states and 43887 transitions. [2021-06-05 20:12:19,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:19,857 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:19,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:19,874 INFO L225 Difference]: With dead ends: 16900 [2021-06-05 20:12:19,874 INFO L226 Difference]: Without dead ends: 16900 [2021-06-05 20:12:19,875 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1345.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:19,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16900 states. [2021-06-05 20:12:20,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16900 to 9613. [2021-06-05 20:12:20,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9613 states, 9611 states have (on average 2.6831755280407865) internal successors, (25788), 9612 states have internal predecessors, (25788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:20,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9613 states to 9613 states and 25788 transitions. [2021-06-05 20:12:20,044 INFO L78 Accepts]: Start accepts. Automaton has 9613 states and 25788 transitions. Word has length 114 [2021-06-05 20:12:20,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:20,044 INFO L482 AbstractCegarLoop]: Abstraction has 9613 states and 25788 transitions. [2021-06-05 20:12:20,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:20,044 INFO L276 IsEmpty]: Start isEmpty. Operand 9613 states and 25788 transitions. [2021-06-05 20:12:20,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:20,053 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:20,053 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, 1] [2021-06-05 20:12:20,053 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2021-06-05 20:12:20,053 INFO L430 AbstractCegarLoop]: === Iteration 325 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:20,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:20,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1722099024, now seen corresponding path program 316 times [2021-06-05 20:12:20,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:20,053 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963169063] [2021-06-05 20:12:20,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:20,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:20,363 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:20,363 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963169063] [2021-06-05 20:12:20,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963169063] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:20,363 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:20,363 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:20,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637080531] [2021-06-05 20:12:20,363 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:20,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:20,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:20,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:20,364 INFO L87 Difference]: Start difference. First operand 9613 states and 25788 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:21,129 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:12:21,286 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:21,469 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:12:21,690 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:12:21,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:21,843 INFO L93 Difference]: Finished difference Result 20013 states and 51837 transitions. [2021-06-05 20:12:21,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:21,844 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:21,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:21,863 INFO L225 Difference]: With dead ends: 20013 [2021-06-05 20:12:21,864 INFO L226 Difference]: Without dead ends: 20013 [2021-06-05 20:12:21,864 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1365.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:21,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20013 states. [2021-06-05 20:12:22,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20013 to 9629. [2021-06-05 20:12:22,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:22,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-06-05 20:12:22,055 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-06-05 20:12:22,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:22,055 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-06-05 20:12:22,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:22,055 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-06-05 20:12:22,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:22,064 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:22,064 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] [2021-06-05 20:12:22,064 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2021-06-05 20:12:22,064 INFO L430 AbstractCegarLoop]: === Iteration 326 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:22,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:22,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1970646004, now seen corresponding path program 317 times [2021-06-05 20:12:22,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:22,065 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860684886] [2021-06-05 20:12:22,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:22,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:22,370 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:22,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860684886] [2021-06-05 20:12:22,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860684886] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:22,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:22,371 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:22,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250055197] [2021-06-05 20:12:22,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:22,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:22,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:22,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:22,371 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:23,157 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:12:23,317 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:23,491 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:23,688 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:23,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:23,837 INFO L93 Difference]: Finished difference Result 17078 states and 44363 transitions. [2021-06-05 20:12:23,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:23,837 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:23,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:23,855 INFO L225 Difference]: With dead ends: 17078 [2021-06-05 20:12:23,855 INFO L226 Difference]: Without dead ends: 17078 [2021-06-05 20:12:23,855 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1323.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:23,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17078 states. [2021-06-05 20:12:24,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17078 to 9597. [2021-06-05 20:12:24,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9595 states have (on average 2.682855653986451) internal successors, (25742), 9596 states have internal predecessors, (25742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:24,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 25742 transitions. [2021-06-05 20:12:24,036 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 25742 transitions. Word has length 114 [2021-06-05 20:12:24,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:24,036 INFO L482 AbstractCegarLoop]: Abstraction has 9597 states and 25742 transitions. [2021-06-05 20:12:24,036 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:24,036 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 25742 transitions. [2021-06-05 20:12:24,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:24,045 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:24,045 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] [2021-06-05 20:12:24,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2021-06-05 20:12:24,045 INFO L430 AbstractCegarLoop]: === Iteration 327 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:24,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:24,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1304050986, now seen corresponding path program 318 times [2021-06-05 20:12:24,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:24,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942945952] [2021-06-05 20:12:24,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:24,369 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 20:12:24,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:24,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942945952] [2021-06-05 20:12:24,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942945952] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:24,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:24,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:24,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616731194] [2021-06-05 20:12:24,370 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:24,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:24,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:24,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:24,370 INFO L87 Difference]: Start difference. First operand 9597 states and 25742 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:25,133 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:12:25,302 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:25,487 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:12:25,681 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:12:25,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:25,822 INFO L93 Difference]: Finished difference Result 16210 states and 42254 transitions. [2021-06-05 20:12:25,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:25,823 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:25,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:25,839 INFO L225 Difference]: With dead ends: 16210 [2021-06-05 20:12:25,839 INFO L226 Difference]: Without dead ends: 16210 [2021-06-05 20:12:25,840 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1356.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:25,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16210 states. [2021-06-05 20:12:25,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16210 to 9645. [2021-06-05 20:12:25,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9645 states, 9643 states have (on average 2.683812091672716) internal successors, (25880), 9644 states have internal predecessors, (25880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:26,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9645 states to 9645 states and 25880 transitions. [2021-06-05 20:12:26,013 INFO L78 Accepts]: Start accepts. Automaton has 9645 states and 25880 transitions. Word has length 114 [2021-06-05 20:12:26,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:26,013 INFO L482 AbstractCegarLoop]: Abstraction has 9645 states and 25880 transitions. [2021-06-05 20:12:26,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:26,013 INFO L276 IsEmpty]: Start isEmpty. Operand 9645 states and 25880 transitions. [2021-06-05 20:12:26,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:26,022 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:26,022 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] [2021-06-05 20:12:26,022 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2021-06-05 20:12:26,022 INFO L430 AbstractCegarLoop]: === Iteration 328 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:26,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:26,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1055504006, now seen corresponding path program 319 times [2021-06-05 20:12:26,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:26,023 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579580981] [2021-06-05 20:12:26,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:26,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:26,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579580981] [2021-06-05 20:12:26,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579580981] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:26,347 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:26,347 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:26,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113335740] [2021-06-05 20:12:26,348 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:26,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:26,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:26,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:26,348 INFO L87 Difference]: Start difference. First operand 9645 states and 25880 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:27,094 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-05 20:12:27,236 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:12:27,407 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:27,584 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:27,782 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:27,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:27,926 INFO L93 Difference]: Finished difference Result 16050 states and 41852 transitions. [2021-06-05 20:12:27,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:27,926 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:27,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:27,942 INFO L225 Difference]: With dead ends: 16050 [2021-06-05 20:12:27,943 INFO L226 Difference]: Without dead ends: 16050 [2021-06-05 20:12:27,943 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1413.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:27,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16050 states. [2021-06-05 20:12:28,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16050 to 9629. [2021-06-05 20:12:28,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:28,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-06-05 20:12:28,108 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-06-05 20:12:28,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:28,108 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-06-05 20:12:28,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:28,108 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-06-05 20:12:28,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:28,117 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:28,117 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] [2021-06-05 20:12:28,117 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2021-06-05 20:12:28,117 INFO L430 AbstractCegarLoop]: === Iteration 329 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:28,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:28,117 INFO L82 PathProgramCache]: Analyzing trace with hash -101313298, now seen corresponding path program 320 times [2021-06-05 20:12:28,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:28,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465964162] [2021-06-05 20:12:28,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:28,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:28,436 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:28,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465964162] [2021-06-05 20:12:28,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465964162] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:28,436 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:28,436 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:28,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690252529] [2021-06-05 20:12:28,437 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:28,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:28,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:28,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:28,437 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:29,220 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:12:29,371 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:12:29,560 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:29,759 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:29,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:29,892 INFO L93 Difference]: Finished difference Result 13201 states and 34592 transitions. [2021-06-05 20:12:29,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:29,893 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:29,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:29,907 INFO L225 Difference]: With dead ends: 13201 [2021-06-05 20:12:29,907 INFO L226 Difference]: Without dead ends: 13201 [2021-06-05 20:12:29,907 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1329.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:29,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13201 states. [2021-06-05 20:12:30,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13201 to 9501. [2021-06-05 20:12:30,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9501 states, 9499 states have (on average 2.680913780397937) internal successors, (25466), 9500 states have internal predecessors, (25466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:30,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9501 states to 9501 states and 25466 transitions. [2021-06-05 20:12:30,065 INFO L78 Accepts]: Start accepts. Automaton has 9501 states and 25466 transitions. Word has length 114 [2021-06-05 20:12:30,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:30,065 INFO L482 AbstractCegarLoop]: Abstraction has 9501 states and 25466 transitions. [2021-06-05 20:12:30,065 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:30,065 INFO L276 IsEmpty]: Start isEmpty. Operand 9501 states and 25466 transitions. [2021-06-05 20:12:30,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:30,074 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:30,074 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] [2021-06-05 20:12:30,074 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2021-06-05 20:12:30,074 INFO L430 AbstractCegarLoop]: === Iteration 330 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:30,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:30,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1040171856, now seen corresponding path program 321 times [2021-06-05 20:12:30,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:30,075 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894171350] [2021-06-05 20:12:30,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:30,383 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 20:12:30,383 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:30,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894171350] [2021-06-05 20:12:30,383 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894171350] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:30,383 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:30,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:30,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940153555] [2021-06-05 20:12:30,383 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:30,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:30,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:30,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:30,384 INFO L87 Difference]: Start difference. First operand 9501 states and 25466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:31,160 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:12:31,319 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:31,495 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:31,694 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:31,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:31,842 INFO L93 Difference]: Finished difference Result 16645 states and 43613 transitions. [2021-06-05 20:12:31,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:31,842 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:31,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:31,860 INFO L225 Difference]: With dead ends: 16645 [2021-06-05 20:12:31,860 INFO L226 Difference]: Without dead ends: 16645 [2021-06-05 20:12:31,860 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1341.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:31,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16645 states. [2021-06-05 20:12:32,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16645 to 9581. [2021-06-05 20:12:32,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9581 states, 9579 states have (on average 2.68253471134774) internal successors, (25696), 9580 states have internal predecessors, (25696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:32,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9581 states to 9581 states and 25696 transitions. [2021-06-05 20:12:32,032 INFO L78 Accepts]: Start accepts. Automaton has 9581 states and 25696 transitions. Word has length 114 [2021-06-05 20:12:32,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:32,033 INFO L482 AbstractCegarLoop]: Abstraction has 9581 states and 25696 transitions. [2021-06-05 20:12:32,033 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:32,033 INFO L276 IsEmpty]: Start isEmpty. Operand 9581 states and 25696 transitions. [2021-06-05 20:12:32,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:32,042 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:32,042 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] [2021-06-05 20:12:32,042 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2021-06-05 20:12:32,042 INFO L430 AbstractCegarLoop]: === Iteration 331 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:32,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:32,042 INFO L82 PathProgramCache]: Analyzing trace with hash -48301330, now seen corresponding path program 322 times [2021-06-05 20:12:32,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:32,042 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084606197] [2021-06-05 20:12:32,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:32,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:32,356 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:32,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084606197] [2021-06-05 20:12:32,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084606197] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:32,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:32,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:32,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390705818] [2021-06-05 20:12:32,356 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:32,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:32,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:32,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:32,357 INFO L87 Difference]: Start difference. First operand 9581 states and 25696 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:33,151 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:12:33,307 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:33,495 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:12:33,690 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:12:33,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:33,834 INFO L93 Difference]: Finished difference Result 17458 states and 45417 transitions. [2021-06-05 20:12:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:33,834 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:33,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:33,853 INFO L225 Difference]: With dead ends: 17458 [2021-06-05 20:12:33,853 INFO L226 Difference]: Without dead ends: 17458 [2021-06-05 20:12:33,853 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1346.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:33,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17458 states. [2021-06-05 20:12:34,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17458 to 9565. [2021-06-05 20:12:34,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9565 states, 9563 states have (on average 2.6822126947610583) internal successors, (25650), 9564 states have internal predecessors, (25650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:34,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9565 states to 9565 states and 25650 transitions. [2021-06-05 20:12:34,029 INFO L78 Accepts]: Start accepts. Automaton has 9565 states and 25650 transitions. Word has length 114 [2021-06-05 20:12:34,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:34,029 INFO L482 AbstractCegarLoop]: Abstraction has 9565 states and 25650 transitions. [2021-06-05 20:12:34,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:34,030 INFO L276 IsEmpty]: Start isEmpty. Operand 9565 states and 25650 transitions. [2021-06-05 20:12:34,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:34,038 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:34,038 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] [2021-06-05 20:12:34,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2021-06-05 20:12:34,038 INFO L430 AbstractCegarLoop]: === Iteration 332 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:34,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:34,039 INFO L82 PathProgramCache]: Analyzing trace with hash 749562130, now seen corresponding path program 323 times [2021-06-05 20:12:34,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:34,039 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783252151] [2021-06-05 20:12:34,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:34,349 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 20:12:34,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:34,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783252151] [2021-06-05 20:12:34,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783252151] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:34,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:34,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:34,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244515949] [2021-06-05 20:12:34,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:34,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:34,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:34,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:34,350 INFO L87 Difference]: Start difference. First operand 9565 states and 25650 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:35,141 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:12:35,301 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:35,490 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:12:35,691 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:12:35,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:35,864 INFO L93 Difference]: Finished difference Result 20571 states and 53367 transitions. [2021-06-05 20:12:35,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:35,864 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:35,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:35,885 INFO L225 Difference]: With dead ends: 20571 [2021-06-05 20:12:35,885 INFO L226 Difference]: Without dead ends: 20571 [2021-06-05 20:12:35,886 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1344.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:35,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20571 states. [2021-06-05 20:12:36,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20571 to 9581. [2021-06-05 20:12:36,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9581 states, 9579 states have (on average 2.68253471134774) internal successors, (25696), 9580 states have internal predecessors, (25696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:36,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9581 states to 9581 states and 25696 transitions. [2021-06-05 20:12:36,078 INFO L78 Accepts]: Start accepts. Automaton has 9581 states and 25696 transitions. Word has length 114 [2021-06-05 20:12:36,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:36,079 INFO L482 AbstractCegarLoop]: Abstraction has 9581 states and 25696 transitions. [2021-06-05 20:12:36,079 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:36,079 INFO L276 IsEmpty]: Start isEmpty. Operand 9581 states and 25696 transitions. [2021-06-05 20:12:36,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:36,088 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:36,088 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] [2021-06-05 20:12:36,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2021-06-05 20:12:36,088 INFO L430 AbstractCegarLoop]: === Iteration 333 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:36,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:36,088 INFO L82 PathProgramCache]: Analyzing trace with hash 501015150, now seen corresponding path program 324 times [2021-06-05 20:12:36,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:36,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879098916] [2021-06-05 20:12:36,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:36,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:36,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:36,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879098916] [2021-06-05 20:12:36,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879098916] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:36,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:36,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:36,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449962512] [2021-06-05 20:12:36,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:36,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:36,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:36,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:36,392 INFO L87 Difference]: Start difference. First operand 9581 states and 25696 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:37,179 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:12:37,339 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:37,516 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:37,714 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:37,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:37,862 INFO L93 Difference]: Finished difference Result 17636 states and 45893 transitions. [2021-06-05 20:12:37,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:37,862 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:37,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:37,881 INFO L225 Difference]: With dead ends: 17636 [2021-06-05 20:12:37,881 INFO L226 Difference]: Without dead ends: 17636 [2021-06-05 20:12:37,881 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1326.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:37,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17636 states. [2021-06-05 20:12:38,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17636 to 9549. [2021-06-05 20:12:38,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9549 states, 9547 states have (on average 2.6818895988268565) internal successors, (25604), 9548 states have internal predecessors, (25604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:38,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9549 states to 9549 states and 25604 transitions. [2021-06-05 20:12:38,134 INFO L78 Accepts]: Start accepts. Automaton has 9549 states and 25604 transitions. Word has length 114 [2021-06-05 20:12:38,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:38,134 INFO L482 AbstractCegarLoop]: Abstraction has 9549 states and 25604 transitions. [2021-06-05 20:12:38,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:38,134 INFO L276 IsEmpty]: Start isEmpty. Operand 9549 states and 25604 transitions. [2021-06-05 20:12:38,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:38,142 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:38,142 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] [2021-06-05 20:12:38,142 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2021-06-05 20:12:38,142 INFO L430 AbstractCegarLoop]: === Iteration 334 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:38,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:38,142 INFO L82 PathProgramCache]: Analyzing trace with hash -519255156, now seen corresponding path program 325 times [2021-06-05 20:12:38,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:38,142 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520142453] [2021-06-05 20:12:38,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:38,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:38,471 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:38,471 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520142453] [2021-06-05 20:12:38,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520142453] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:38,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:38,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:38,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961987328] [2021-06-05 20:12:38,471 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:38,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:38,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:38,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:38,472 INFO L87 Difference]: Start difference. First operand 9549 states and 25604 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:39,252 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:12:39,431 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:39,624 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:12:39,824 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:12:40,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:40,003 INFO L93 Difference]: Finished difference Result 21081 states and 54759 transitions. [2021-06-05 20:12:40,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:40,004 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:40,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:40,026 INFO L225 Difference]: With dead ends: 21081 [2021-06-05 20:12:40,027 INFO L226 Difference]: Without dead ends: 21081 [2021-06-05 20:12:40,027 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1355.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:40,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21081 states. [2021-06-05 20:12:40,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21081 to 9597. [2021-06-05 20:12:40,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9595 states have (on average 2.682855653986451) internal successors, (25742), 9596 states have internal predecessors, (25742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 25742 transitions. [2021-06-05 20:12:40,226 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 25742 transitions. Word has length 114 [2021-06-05 20:12:40,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:40,226 INFO L482 AbstractCegarLoop]: Abstraction has 9597 states and 25742 transitions. [2021-06-05 20:12:40,226 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:40,226 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 25742 transitions. [2021-06-05 20:12:40,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:40,235 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:40,235 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] [2021-06-05 20:12:40,235 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2021-06-05 20:12:40,235 INFO L430 AbstractCegarLoop]: === Iteration 335 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:40,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:40,236 INFO L82 PathProgramCache]: Analyzing trace with hash -767802136, now seen corresponding path program 326 times [2021-06-05 20:12:40,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:40,236 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097365202] [2021-06-05 20:12:40,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:40,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:40,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:40,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097365202] [2021-06-05 20:12:40,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097365202] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:40,553 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:40,553 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:40,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877550307] [2021-06-05 20:12:40,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:40,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:40,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:40,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:40,553 INFO L87 Difference]: Start difference. First operand 9597 states and 25742 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:41,333 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:12:41,509 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:41,689 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:41,890 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:42,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:42,054 INFO L93 Difference]: Finished difference Result 20921 states and 54357 transitions. [2021-06-05 20:12:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:42,054 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:42,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:42,075 INFO L225 Difference]: With dead ends: 20921 [2021-06-05 20:12:42,075 INFO L226 Difference]: Without dead ends: 20921 [2021-06-05 20:12:42,075 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1341.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:42,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20921 states. [2021-06-05 20:12:42,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20921 to 9581. [2021-06-05 20:12:42,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9581 states, 9579 states have (on average 2.68253471134774) internal successors, (25696), 9580 states have internal predecessors, (25696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:42,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9581 states to 9581 states and 25696 transitions. [2021-06-05 20:12:42,269 INFO L78 Accepts]: Start accepts. Automaton has 9581 states and 25696 transitions. Word has length 114 [2021-06-05 20:12:42,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:42,270 INFO L482 AbstractCegarLoop]: Abstraction has 9581 states and 25696 transitions. [2021-06-05 20:12:42,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:42,270 INFO L276 IsEmpty]: Start isEmpty. Operand 9581 states and 25696 transitions. [2021-06-05 20:12:42,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:42,279 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:42,279 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] [2021-06-05 20:12:42,279 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2021-06-05 20:12:42,279 INFO L430 AbstractCegarLoop]: === Iteration 336 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:42,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:42,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1924619440, now seen corresponding path program 327 times [2021-06-05 20:12:42,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:42,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666827719] [2021-06-05 20:12:42,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:42,609 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:42,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666827719] [2021-06-05 20:12:42,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666827719] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:42,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:42,609 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:42,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670965549] [2021-06-05 20:12:42,610 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:42,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:42,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:42,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:42,610 INFO L87 Difference]: Start difference. First operand 9581 states and 25696 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:43,388 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:12:43,539 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:12:43,760 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:43,959 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:44,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:44,107 INFO L93 Difference]: Finished difference Result 18072 states and 47097 transitions. [2021-06-05 20:12:44,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:44,107 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:44,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:44,126 INFO L225 Difference]: With dead ends: 18072 [2021-06-05 20:12:44,126 INFO L226 Difference]: Without dead ends: 18072 [2021-06-05 20:12:44,126 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1359.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:44,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18072 states. [2021-06-05 20:12:44,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18072 to 9517. [2021-06-05 20:12:44,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9517 states, 9515 states have (on average 2.681240147136101) internal successors, (25512), 9516 states have internal predecessors, (25512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:44,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9517 states to 9517 states and 25512 transitions. [2021-06-05 20:12:44,298 INFO L78 Accepts]: Start accepts. Automaton has 9517 states and 25512 transitions. Word has length 114 [2021-06-05 20:12:44,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:44,298 INFO L482 AbstractCegarLoop]: Abstraction has 9517 states and 25512 transitions. [2021-06-05 20:12:44,298 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:44,298 INFO L276 IsEmpty]: Start isEmpty. Operand 9517 states and 25512 transitions. [2021-06-05 20:12:44,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:44,306 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:44,306 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] [2021-06-05 20:12:44,306 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2021-06-05 20:12:44,306 INFO L430 AbstractCegarLoop]: === Iteration 337 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:44,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:44,307 INFO L82 PathProgramCache]: Analyzing trace with hash -114895574, now seen corresponding path program 328 times [2021-06-05 20:12:44,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:44,307 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317713021] [2021-06-05 20:12:44,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:44,639 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 20:12:44,639 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:44,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317713021] [2021-06-05 20:12:44,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317713021] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:44,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:44,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:44,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309132607] [2021-06-05 20:12:44,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:44,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:44,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:44,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:44,640 INFO L87 Difference]: Start difference. First operand 9517 states and 25512 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:45,392 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:12:45,560 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:45,745 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-05 20:12:45,938 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-05 20:12:46,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:46,076 INFO L93 Difference]: Finished difference Result 16736 states and 43692 transitions. [2021-06-05 20:12:46,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:46,076 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:46,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:46,093 INFO L225 Difference]: With dead ends: 16736 [2021-06-05 20:12:46,093 INFO L226 Difference]: Without dead ends: 16736 [2021-06-05 20:12:46,093 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1352.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:46,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16736 states. [2021-06-05 20:12:46,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16736 to 9581. [2021-06-05 20:12:46,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9581 states, 9579 states have (on average 2.68253471134774) internal successors, (25696), 9580 states have internal predecessors, (25696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:46,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9581 states to 9581 states and 25696 transitions. [2021-06-05 20:12:46,265 INFO L78 Accepts]: Start accepts. Automaton has 9581 states and 25696 transitions. Word has length 114 [2021-06-05 20:12:46,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:46,265 INFO L482 AbstractCegarLoop]: Abstraction has 9581 states and 25696 transitions. [2021-06-05 20:12:46,265 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:46,265 INFO L276 IsEmpty]: Start isEmpty. Operand 9581 states and 25696 transitions. [2021-06-05 20:12:46,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:46,274 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:46,274 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] [2021-06-05 20:12:46,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2021-06-05 20:12:46,274 INFO L430 AbstractCegarLoop]: === Iteration 338 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:46,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:46,274 INFO L82 PathProgramCache]: Analyzing trace with hash -363442554, now seen corresponding path program 329 times [2021-06-05 20:12:46,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:46,275 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825990090] [2021-06-05 20:12:46,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:46,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:46,601 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:46,601 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825990090] [2021-06-05 20:12:46,601 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825990090] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:46,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:46,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:46,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582776713] [2021-06-05 20:12:46,601 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:46,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:46,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:46,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:46,601 INFO L87 Difference]: Start difference. First operand 9581 states and 25696 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:47,357 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:12:47,529 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:47,706 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:47,906 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:48,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:48,044 INFO L93 Difference]: Finished difference Result 16576 states and 43290 transitions. [2021-06-05 20:12:48,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:48,044 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:48,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:48,062 INFO L225 Difference]: With dead ends: 16576 [2021-06-05 20:12:48,062 INFO L226 Difference]: Without dead ends: 16576 [2021-06-05 20:12:48,062 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1350.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:48,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16576 states. [2021-06-05 20:12:48,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16576 to 9565. [2021-06-05 20:12:48,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9565 states, 9563 states have (on average 2.6822126947610583) internal successors, (25650), 9564 states have internal predecessors, (25650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:48,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9565 states to 9565 states and 25650 transitions. [2021-06-05 20:12:48,233 INFO L78 Accepts]: Start accepts. Automaton has 9565 states and 25650 transitions. Word has length 114 [2021-06-05 20:12:48,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:48,233 INFO L482 AbstractCegarLoop]: Abstraction has 9565 states and 25650 transitions. [2021-06-05 20:12:48,233 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:48,233 INFO L276 IsEmpty]: Start isEmpty. Operand 9565 states and 25650 transitions. [2021-06-05 20:12:48,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:48,242 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:48,242 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] [2021-06-05 20:12:48,242 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2021-06-05 20:12:48,243 INFO L430 AbstractCegarLoop]: === Iteration 339 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:48,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:48,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1520259858, now seen corresponding path program 330 times [2021-06-05 20:12:48,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:48,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867314605] [2021-06-05 20:12:48,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:48,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:48,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:48,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867314605] [2021-06-05 20:12:48,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867314605] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:48,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:48,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:48,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887382259] [2021-06-05 20:12:48,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:48,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:48,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:48,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:48,583 INFO L87 Difference]: Start difference. First operand 9565 states and 25650 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:49,236 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-06-05 20:12:49,377 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-05 20:12:49,527 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:12:49,716 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:49,918 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:50,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:50,061 INFO L93 Difference]: Finished difference Result 16864 states and 44118 transitions. [2021-06-05 20:12:50,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:50,061 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:50,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:50,079 INFO L225 Difference]: With dead ends: 16864 [2021-06-05 20:12:50,079 INFO L226 Difference]: Without dead ends: 16864 [2021-06-05 20:12:50,079 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1382.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:50,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16864 states. [2021-06-05 20:12:50,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16864 to 9533. [2021-06-05 20:12:50,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9533 states, 9531 states have (on average 2.6815654181093276) internal successors, (25558), 9532 states have internal predecessors, (25558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:50,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9533 states to 9533 states and 25558 transitions. [2021-06-05 20:12:50,242 INFO L78 Accepts]: Start accepts. Automaton has 9533 states and 25558 transitions. Word has length 114 [2021-06-05 20:12:50,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:50,242 INFO L482 AbstractCegarLoop]: Abstraction has 9533 states and 25558 transitions. [2021-06-05 20:12:50,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:50,242 INFO L276 IsEmpty]: Start isEmpty. Operand 9533 states and 25558 transitions. [2021-06-05 20:12:50,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:50,252 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:50,252 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] [2021-06-05 20:12:50,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2021-06-05 20:12:50,252 INFO L430 AbstractCegarLoop]: === Iteration 340 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:50,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:50,252 INFO L82 PathProgramCache]: Analyzing trace with hash 187923280, now seen corresponding path program 331 times [2021-06-05 20:12:50,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:50,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246865413] [2021-06-05 20:12:50,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:50,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:50,591 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:50,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246865413] [2021-06-05 20:12:50,591 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246865413] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:50,591 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:50,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:50,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791753529] [2021-06-05 20:12:50,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:50,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:50,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:50,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:50,592 INFO L87 Difference]: Start difference. First operand 9533 states and 25558 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:51,367 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-05 20:12:51,515 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-05 20:12:51,706 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:51,907 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:52,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:52,044 INFO L93 Difference]: Finished difference Result 13579 states and 35654 transitions. [2021-06-05 20:12:52,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:52,045 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:52,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:52,059 INFO L225 Difference]: With dead ends: 13579 [2021-06-05 20:12:52,059 INFO L226 Difference]: Without dead ends: 13579 [2021-06-05 20:12:52,059 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1341.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:52,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13579 states. [2021-06-05 20:12:52,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13579 to 9469. [2021-06-05 20:12:52,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9469 states, 9467 states have (on average 2.6802577374036125) internal successors, (25374), 9468 states have internal predecessors, (25374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:52,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9469 states to 9469 states and 25374 transitions. [2021-06-05 20:12:52,206 INFO L78 Accepts]: Start accepts. Automaton has 9469 states and 25374 transitions. Word has length 114 [2021-06-05 20:12:52,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:52,206 INFO L482 AbstractCegarLoop]: Abstraction has 9469 states and 25374 transitions. [2021-06-05 20:12:52,206 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:52,206 INFO L276 IsEmpty]: Start isEmpty. Operand 9469 states and 25374 transitions. [2021-06-05 20:12:52,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:52,215 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:52,215 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] [2021-06-05 20:12:52,215 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2021-06-05 20:12:52,215 INFO L430 AbstractCegarLoop]: === Iteration 341 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:52,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:52,215 INFO L82 PathProgramCache]: Analyzing trace with hash -840792664, now seen corresponding path program 332 times [2021-06-05 20:12:52,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:52,215 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408615325] [2021-06-05 20:12:52,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:12:52,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:12:52,521 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:12:52,521 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408615325] [2021-06-05 20:12:52,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408615325] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:12:52,521 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:12:52,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 20:12:52,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918116567] [2021-06-05 20:12:52,521 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 20:12:52,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:12:52,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 20:12:52,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-05 20:12:52,522 INFO L87 Difference]: Start difference. First operand 9469 states and 25374 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:53,284 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-05 20:12:53,441 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-05 20:12:53,613 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-05 20:12:53,811 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-05 20:12:53,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:12:53,938 INFO L93 Difference]: Finished difference Result 11153 states and 29359 transitions. [2021-06-05 20:12:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 20:12:53,938 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-05 20:12:53,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:12:53,950 INFO L225 Difference]: With dead ends: 11153 [2021-06-05 20:12:53,950 INFO L226 Difference]: Without dead ends: 11153 [2021-06-05 20:12:53,950 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1336.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-05 20:12:53,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11153 states. [2021-06-05 20:12:54,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11153 to 9381. [2021-06-05 20:12:54,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9381 states, 9379 states have (on average 2.678110672779614) internal successors, (25118), 9380 states have internal predecessors, (25118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:54,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9381 states to 9381 states and 25118 transitions. [2021-06-05 20:12:54,087 INFO L78 Accepts]: Start accepts. Automaton has 9381 states and 25118 transitions. Word has length 114 [2021-06-05 20:12:54,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:12:54,087 INFO L482 AbstractCegarLoop]: Abstraction has 9381 states and 25118 transitions. [2021-06-05 20:12:54,087 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:12:54,087 INFO L276 IsEmpty]: Start isEmpty. Operand 9381 states and 25118 transitions. [2021-06-05 20:12:54,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-05 20:12:54,096 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:12:54,096 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] [2021-06-05 20:12:54,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2021-06-05 20:12:54,096 INFO L430 AbstractCegarLoop]: === Iteration 342 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:12:54,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:12:54,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1929265850, now seen corresponding path program 333 times [2021-06-05 20:12:54,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:12:54,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874611511] [2021-06-05 20:12:54,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:12:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2021-06-05 20:12:54,179 WARN L222 SmtUtils]: Removed 1 from assertion stack [2021-06-05 20:12:54,179 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2021-06-05 20:12:54,179 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 20:12:54,181 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 20:12:54,183 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 20:12:54,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:12:54 BasicIcfg [2021-06-05 20:12:54,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 20:12:54,184 INFO L168 Benchmark]: Toolchain (without parser) took 710606.74 ms. Allocated memory was 331.4 MB in the beginning and 3.1 GB in the end (delta: 2.7 GB). Free memory was 292.0 MB in the beginning and 1.2 GB in the end (delta: -898.9 MB). Peak memory consumption was 1.8 GB. Max. memory is 16.0 GB. [2021-06-05 20:12:54,184 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 331.4 MB. Free memory was 312.2 MB in the beginning and 312.1 MB in the end (delta: 70.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:12:54,184 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1214.87 ms. Allocated memory is still 331.4 MB. Free memory was 291.8 MB in the beginning and 261.6 MB in the end (delta: 30.2 MB). Peak memory consumption was 66.7 MB. Max. memory is 16.0 GB. [2021-06-05 20:12:54,184 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.53 ms. Allocated memory is still 331.4 MB. Free memory was 261.6 MB in the beginning and 258.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-05 20:12:54,184 INFO L168 Benchmark]: Boogie Preprocessor took 60.16 ms. Allocated memory is still 331.4 MB. Free memory was 258.4 MB in the beginning and 255.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:12:54,185 INFO L168 Benchmark]: RCFGBuilder took 730.69 ms. Allocated memory was 331.4 MB in the beginning and 404.8 MB in the end (delta: 73.4 MB). Free memory was 255.3 MB in the beginning and 378.3 MB in the end (delta: -123.0 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.0 GB. [2021-06-05 20:12:54,185 INFO L168 Benchmark]: TraceAbstraction took 708496.54 ms. Allocated memory was 404.8 MB in the beginning and 3.1 GB in the end (delta: 2.7 GB). Free memory was 377.2 MB in the beginning and 1.2 GB in the end (delta: -813.7 MB). Peak memory consumption was 1.8 GB. Max. memory is 16.0 GB. [2021-06-05 20:12:54,185 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 331.4 MB. Free memory was 312.2 MB in the beginning and 312.1 MB in the end (delta: 70.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1214.87 ms. Allocated memory is still 331.4 MB. Free memory was 291.8 MB in the beginning and 261.6 MB in the end (delta: 30.2 MB). Peak memory consumption was 66.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 98.53 ms. Allocated memory is still 331.4 MB. Free memory was 261.6 MB in the beginning and 258.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 60.16 ms. Allocated memory is still 331.4 MB. Free memory was 258.4 MB in the beginning and 255.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 730.69 ms. Allocated memory was 331.4 MB in the beginning and 404.8 MB in the end (delta: 73.4 MB). Free memory was 255.3 MB in the beginning and 378.3 MB in the end (delta: -123.0 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 708496.54 ms. Allocated memory was 404.8 MB in the beginning and 3.1 GB in the end (delta: 2.7 GB). Free memory was 377.2 MB in the beginning and 1.2 GB in the end (delta: -813.7 MB). Peak memory consumption was 1.8 GB. 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 115 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 0ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 115 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 0ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 115 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 0ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 115 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 0ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 115 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 0ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 115 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 0ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 4 procedures, 178 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 708319.3ms, OverallIterations: 342, TraceHistogramMax: 1, EmptinessCheckTime: 3089.9ms, AutomataDifference: 520775.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 416.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 131522 SDtfs, 407135 SDslu, 724142 SDs, 0 SdLazy, 189265 SolverSat, 2404 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 98251.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12371 GetRequests, 1351 SyntacticMatches, 671 SemanticMatches, 10349 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24319 ImplicationChecksByTransitivity, 461838.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10749occurred in iteration=67, InterpolantAutomatonStates: 5967, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 62926.5ms AutomataMinimizationTime, 341 MinimizatonAttempts, 3355250 StatesRemovedByMinimization, 340 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 529.1ms SsaConstructionTime, 3960.4ms SatisfiabilityAnalysisTime, 114047.1ms InterpolantComputationTime, 38588 NumberOfCodeBlocks, 38588 NumberOfCodeBlocksAsserted, 341 NumberOfCheckSat, 38247 ConstructedInterpolants, 0 QuantifiedInterpolants, 241615 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 341 InterpolantComputations, 341 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