/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 00:34:58,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 00:34:58,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 00:34:58,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 00:34:58,689 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 00:34:58,714 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 00:34:58,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 00:34:58,714 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 00:34:58,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 00:34:58,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 00:34:58,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 00:34:58,717 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 00:34:58,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 00:34:58,717 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 00:34:58,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 00:34:58,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 00:34:58,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 00:34:58,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 00:34:58,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 00:34:58,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 00:34:58,718 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 00:34:58,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 00:34:58,718 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 00:34:58,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 00:34:58,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 00:34:58,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 00:34:58,719 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 00:34:58,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 00:34:58,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:34:58,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 00:34:58,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 00:34:58,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 00:34:58,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 00:34:58,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 00:34:58,719 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 00:34:58,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 00:34:58,720 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 00:34:58,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 00:34:58,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 00:34:58,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 00:34:58,938 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 00:34:58,939 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 00:34:58,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-06-05 00:34:59,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95bb233db/2654b66fbccb4aa19ad520030cf4e8f2/FLAG2ff72cba5 [2021-06-05 00:34:59,513 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 00:34:59,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-06-05 00:34:59,533 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95bb233db/2654b66fbccb4aa19ad520030cf4e8f2/FLAG2ff72cba5 [2021-06-05 00:34:59,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95bb233db/2654b66fbccb4aa19ad520030cf4e8f2 [2021-06-05 00:34:59,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 00:34:59,984 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 00:34:59,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 00:34:59,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 00:34:59,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 00:34:59,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:34:59" (1/1) ... [2021-06-05 00:34:59,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f94188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:34:59, skipping insertion in model container [2021-06-05 00:34:59,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:34:59" (1/1) ... [2021-06-05 00:34:59,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 00:35:00,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 00:35:00,560 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-06-05 00:35:00,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:35:00,601 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 00:35:00,638 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-06-05 00:35:00,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:35:00,830 INFO L208 MainTranslator]: Completed translation [2021-06-05 00:35:00,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:35:00 WrapperNode [2021-06-05 00:35:00,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 00:35:00,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 00:35:00,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 00:35:00,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 00:35:00,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:35:00" (1/1) ... [2021-06-05 00:35:00,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:35:00" (1/1) ... [2021-06-05 00:35:00,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 00:35:00,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 00:35:00,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 00:35:00,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 00:35:00,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:35:00" (1/1) ... [2021-06-05 00:35:00,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:35:00" (1/1) ... [2021-06-05 00:35:00,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:35:00" (1/1) ... [2021-06-05 00:35:00,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:35:00" (1/1) ... [2021-06-05 00:35:00,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:35:00" (1/1) ... [2021-06-05 00:35:00,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:35:00" (1/1) ... [2021-06-05 00:35:00,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:35:00" (1/1) ... [2021-06-05 00:35:00,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 00:35:00,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 00:35:00,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 00:35:00,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 00:35:00,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:35:00" (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 00:35:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 00:35:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 00:35:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-05 00:35:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-05 00:35:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 00:35:00,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 00:35:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-06-05 00:35:00,999 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-06-05 00:35:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 00:35:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 00:35:00,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 00:35:01,000 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 00:35:01,499 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 00:35:01,500 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-06-05 00:35:01,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:35:01 BoogieIcfgContainer [2021-06-05 00:35:01,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 00:35:01,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 00:35:01,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 00:35:01,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 00:35:01,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:34:59" (1/3) ... [2021-06-05 00:35:01,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a712c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:35:01, skipping insertion in model container [2021-06-05 00:35:01,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:35:00" (2/3) ... [2021-06-05 00:35:01,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a712c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:35:01, skipping insertion in model container [2021-06-05 00:35:01,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:35:01" (3/3) ... [2021-06-05 00:35:01,506 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2021-06-05 00:35:01,510 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 00:35:01,510 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 00:35:01,510 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-06-05 00:35:01,511 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 00:35:01,551 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,551 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,551 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,551 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,552 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,552 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,552 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,553 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,553 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,553 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,553 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,553 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,553 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,553 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,553 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,553 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,553 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,553 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,554 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,554 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,554 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,554 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,554 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,554 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,554 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,554 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,554 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,554 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,555 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,555 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,555 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,555 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,555 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,555 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,555 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,555 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,555 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,555 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,555 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,556 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,556 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,556 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,556 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,556 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,556 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,556 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,556 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,556 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,556 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,557 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,557 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,557 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,557 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,557 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,557 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,557 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,557 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,557 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,557 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,558 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,558 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,558 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,558 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,558 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,558 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,558 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,558 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,558 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,558 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,558 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,559 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,559 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,559 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,559 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,559 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,559 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,559 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,559 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,559 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,559 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,559 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,560 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,560 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,560 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,560 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,560 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,560 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,560 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,560 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,561 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,561 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,561 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,561 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,561 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,561 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,561 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,561 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,561 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,562 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,562 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,562 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,562 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,562 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,562 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,562 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,562 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,562 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,563 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,563 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,563 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,564 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,564 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,565 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,565 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,565 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,565 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,565 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,565 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,565 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,565 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,569 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,569 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,569 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,569 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,569 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,569 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,570 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,570 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,570 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,570 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:35:01,579 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 00:35:01,616 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-06-05 00:35:01,643 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 00:35:01,643 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 00:35:01,643 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 00:35:01,643 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 00:35:01,643 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 00:35:01,643 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 00:35:01,643 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 00:35:01,643 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 00:35:01,653 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 166 places, 170 transitions, 362 flow [2021-06-05 00:35:01,890 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8182 states, 8171 states have (on average 2.8338024721576307) internal successors, (23155), 8181 states have internal predecessors, (23155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:01,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 8182 states, 8171 states have (on average 2.8338024721576307) internal successors, (23155), 8181 states have internal predecessors, (23155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:01,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 00:35:01,917 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:01,917 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:01,917 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 00:35:01,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:01,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1624038893, now seen corresponding path program 1 times [2021-06-05 00:35:01,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:01,935 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310623346] [2021-06-05 00:35:01,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:02,230 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 00:35:02,230 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:02,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310623346] [2021-06-05 00:35:02,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310623346] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:02,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:02,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:35:02,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598233375] [2021-06-05 00:35:02,234 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:35:02,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:02,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:35:02,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:35:02,260 INFO L87 Difference]: Start difference. First operand has 8182 states, 8171 states have (on average 2.8338024721576307) internal successors, (23155), 8181 states have internal predecessors, (23155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:02,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:02,565 INFO L93 Difference]: Finished difference Result 7787 states and 21633 transitions. [2021-06-05 00:35:02,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:35:02,566 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 00:35:02,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:02,604 INFO L225 Difference]: With dead ends: 7787 [2021-06-05 00:35:02,604 INFO L226 Difference]: Without dead ends: 6398 [2021-06-05 00:35:02,605 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 74.0ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:35:02,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6398 states. [2021-06-05 00:35:02,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6398 to 6397. [2021-06-05 00:35:02,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6397 states, 6390 states have (on average 2.769170579029734) internal successors, (17695), 6396 states have internal predecessors, (17695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:02,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6397 states to 6397 states and 17695 transitions. [2021-06-05 00:35:02,906 INFO L78 Accepts]: Start accepts. Automaton has 6397 states and 17695 transitions. Word has length 36 [2021-06-05 00:35:02,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:02,906 INFO L482 AbstractCegarLoop]: Abstraction has 6397 states and 17695 transitions. [2021-06-05 00:35:02,907 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 00:35:02,907 INFO L276 IsEmpty]: Start isEmpty. Operand 6397 states and 17695 transitions. [2021-06-05 00:35:02,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-06-05 00:35:02,907 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:02,908 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:02,908 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 00:35:02,908 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 00:35:02,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:02,911 INFO L82 PathProgramCache]: Analyzing trace with hash -652027726, now seen corresponding path program 1 times [2021-06-05 00:35:02,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:02,911 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348914707] [2021-06-05 00:35:02,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:03,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:03,047 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:03,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348914707] [2021-06-05 00:35:03,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348914707] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:03,047 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:03,047 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:35:03,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222739574] [2021-06-05 00:35:03,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:35:03,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:03,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:35:03,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:35:03,049 INFO L87 Difference]: Start difference. First operand 6397 states and 17695 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:03,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:03,211 INFO L93 Difference]: Finished difference Result 6399 states and 17697 transitions. [2021-06-05 00:35:03,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:35:03,212 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 00:35:03,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:03,233 INFO L225 Difference]: With dead ends: 6399 [2021-06-05 00:35:03,233 INFO L226 Difference]: Without dead ends: 6399 [2021-06-05 00:35:03,234 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 53.1ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 00:35:03,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6399 states. [2021-06-05 00:35:03,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6399 to 6395. [2021-06-05 00:35:03,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6395 states, 6389 states have (on average 2.7692909688527156) internal successors, (17693), 6394 states have internal predecessors, (17693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:03,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6395 states to 6395 states and 17693 transitions. [2021-06-05 00:35:03,456 INFO L78 Accepts]: Start accepts. Automaton has 6395 states and 17693 transitions. Word has length 42 [2021-06-05 00:35:03,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:03,457 INFO L482 AbstractCegarLoop]: Abstraction has 6395 states and 17693 transitions. [2021-06-05 00:35:03,457 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 00:35:03,457 INFO L276 IsEmpty]: Start isEmpty. Operand 6395 states and 17693 transitions. [2021-06-05 00:35:03,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 00:35:03,458 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:03,458 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:03,458 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 00:35:03,459 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 00:35:03,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:03,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1629089851, now seen corresponding path program 1 times [2021-06-05 00:35:03,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:03,459 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869319191] [2021-06-05 00:35:03,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:03,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:03,584 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:03,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869319191] [2021-06-05 00:35:03,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869319191] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:03,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:03,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:35:03,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811130007] [2021-06-05 00:35:03,586 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:35:03,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:03,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:35:03,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:35:03,587 INFO L87 Difference]: Start difference. First operand 6395 states and 17693 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:03,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:03,828 INFO L93 Difference]: Finished difference Result 9382 states and 25923 transitions. [2021-06-05 00:35:03,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:35:03,828 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 00:35:03,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:03,868 INFO L225 Difference]: With dead ends: 9382 [2021-06-05 00:35:03,868 INFO L226 Difference]: Without dead ends: 9382 [2021-06-05 00:35:03,869 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 75.3ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:35:03,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9382 states. [2021-06-05 00:35:04,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9382 to 7177. [2021-06-05 00:35:04,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7177 states, 7172 states have (on average 2.7711935303959843) internal successors, (19875), 7176 states have internal predecessors, (19875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:04,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7177 states to 7177 states and 19875 transitions. [2021-06-05 00:35:04,056 INFO L78 Accepts]: Start accepts. Automaton has 7177 states and 19875 transitions. Word has length 60 [2021-06-05 00:35:04,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:04,057 INFO L482 AbstractCegarLoop]: Abstraction has 7177 states and 19875 transitions. [2021-06-05 00:35:04,057 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 00:35:04,057 INFO L276 IsEmpty]: Start isEmpty. Operand 7177 states and 19875 transitions. [2021-06-05 00:35:04,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 00:35:04,059 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:04,059 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:04,059 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 00:35:04,060 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 00:35:04,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:04,060 INFO L82 PathProgramCache]: Analyzing trace with hash 157318948, now seen corresponding path program 1 times [2021-06-05 00:35:04,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:04,060 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871791135] [2021-06-05 00:35:04,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:04,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:04,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:04,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871791135] [2021-06-05 00:35:04,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871791135] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:04,122 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:04,122 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:35:04,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485861593] [2021-06-05 00:35:04,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:35:04,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:04,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:35:04,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:35:04,123 INFO L87 Difference]: Start difference. First operand 7177 states and 19875 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:04,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:04,374 INFO L93 Difference]: Finished difference Result 10164 states and 27958 transitions. [2021-06-05 00:35:04,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:35:04,374 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 00:35:04,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:04,390 INFO L225 Difference]: With dead ends: 10164 [2021-06-05 00:35:04,391 INFO L226 Difference]: Without dead ends: 8547 [2021-06-05 00:35:04,391 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 54.1ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:35:04,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8547 states. [2021-06-05 00:35:04,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8547 to 8253. [2021-06-05 00:35:04,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8253 states, 8249 states have (on average 2.7752454843011276) internal successors, (22893), 8252 states have internal predecessors, (22893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:04,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8253 states to 8253 states and 22893 transitions. [2021-06-05 00:35:04,556 INFO L78 Accepts]: Start accepts. Automaton has 8253 states and 22893 transitions. Word has length 66 [2021-06-05 00:35:04,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:04,556 INFO L482 AbstractCegarLoop]: Abstraction has 8253 states and 22893 transitions. [2021-06-05 00:35:04,557 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 00:35:04,557 INFO L276 IsEmpty]: Start isEmpty. Operand 8253 states and 22893 transitions. [2021-06-05 00:35:04,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-05 00:35:04,564 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:04,564 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:04,564 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 00:35:04,565 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 00:35:04,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:04,565 INFO L82 PathProgramCache]: Analyzing trace with hash -930332059, now seen corresponding path program 1 times [2021-06-05 00:35:04,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:04,565 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802678742] [2021-06-05 00:35:04,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:04,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:04,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:04,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802678742] [2021-06-05 00:35:04,675 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802678742] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:04,675 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:04,675 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 00:35:04,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976731750] [2021-06-05 00:35:04,675 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 00:35:04,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:04,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 00:35:04,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 00:35:04,676 INFO L87 Difference]: Start difference. First operand 8253 states and 22893 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:04,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:04,707 INFO L93 Difference]: Finished difference Result 3039 states and 8148 transitions. [2021-06-05 00:35:04,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 00:35:04,707 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 00:35:04,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:04,712 INFO L225 Difference]: With dead ends: 3039 [2021-06-05 00:35:04,712 INFO L226 Difference]: Without dead ends: 3039 [2021-06-05 00:35:04,712 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 22.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:35:04,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3039 states. [2021-06-05 00:35:04,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3039 to 3039. [2021-06-05 00:35:04,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3039 states, 3037 states have (on average 2.6829107672044783) internal successors, (8148), 3038 states have internal predecessors, (8148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:04,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3039 states to 3039 states and 8148 transitions. [2021-06-05 00:35:04,759 INFO L78 Accepts]: Start accepts. Automaton has 3039 states and 8148 transitions. Word has length 80 [2021-06-05 00:35:04,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:04,760 INFO L482 AbstractCegarLoop]: Abstraction has 3039 states and 8148 transitions. [2021-06-05 00:35:04,760 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 00:35:04,760 INFO L276 IsEmpty]: Start isEmpty. Operand 3039 states and 8148 transitions. [2021-06-05 00:35:04,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:04,765 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:04,765 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:04,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 00:35:04,765 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 00:35:04,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:04,766 INFO L82 PathProgramCache]: Analyzing trace with hash 2018724715, now seen corresponding path program 1 times [2021-06-05 00:35:04,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:04,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621178691] [2021-06-05 00:35:04,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:05,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:05,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:05,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621178691] [2021-06-05 00:35:05,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621178691] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:05,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:05,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 00:35:05,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031009952] [2021-06-05 00:35:05,198 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 00:35:05,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:05,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 00:35:05,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:35:05,199 INFO L87 Difference]: Start difference. First operand 3039 states and 8148 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:05,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:05,911 INFO L93 Difference]: Finished difference Result 4138 states and 10679 transitions. [2021-06-05 00:35:05,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 00:35:05,911 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:05,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:05,918 INFO L225 Difference]: With dead ends: 4138 [2021-06-05 00:35:05,918 INFO L226 Difference]: Without dead ends: 4138 [2021-06-05 00:35:05,919 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 508.7ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-06-05 00:35:05,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4138 states. [2021-06-05 00:35:05,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4138 to 3698. [2021-06-05 00:35:05,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3698 states, 3696 states have (on average 2.643668831168831) internal successors, (9771), 3697 states have internal predecessors, (9771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:05,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 9771 transitions. [2021-06-05 00:35:05,992 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 9771 transitions. Word has length 113 [2021-06-05 00:35:05,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:05,993 INFO L482 AbstractCegarLoop]: Abstraction has 3698 states and 9771 transitions. [2021-06-05 00:35:05,993 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:05,993 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 9771 transitions. [2021-06-05 00:35:05,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:05,999 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:05,999 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:05,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 00:35:06,000 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 00:35:06,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:06,000 INFO L82 PathProgramCache]: Analyzing trace with hash -551749779, now seen corresponding path program 2 times [2021-06-05 00:35:06,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:06,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686053807] [2021-06-05 00:35:06,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:06,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:06,407 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:06,407 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686053807] [2021-06-05 00:35:06,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686053807] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:06,407 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:06,407 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:06,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921998385] [2021-06-05 00:35:06,408 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:06,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:06,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:06,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:06,408 INFO L87 Difference]: Start difference. First operand 3698 states and 9771 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:07,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:07,918 INFO L93 Difference]: Finished difference Result 6254 states and 16298 transitions. [2021-06-05 00:35:07,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 00:35:07,919 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:07,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:07,928 INFO L225 Difference]: With dead ends: 6254 [2021-06-05 00:35:07,928 INFO L226 Difference]: Without dead ends: 6254 [2021-06-05 00:35:07,929 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1095.7ms TimeCoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 00:35:07,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6254 states. [2021-06-05 00:35:07,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6254 to 4483. [2021-06-05 00:35:07,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4483 states, 4481 states have (on average 2.673733541620174) internal successors, (11981), 4482 states have internal predecessors, (11981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:08,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4483 states to 4483 states and 11981 transitions. [2021-06-05 00:35:08,007 INFO L78 Accepts]: Start accepts. Automaton has 4483 states and 11981 transitions. Word has length 113 [2021-06-05 00:35:08,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:08,007 INFO L482 AbstractCegarLoop]: Abstraction has 4483 states and 11981 transitions. [2021-06-05 00:35:08,007 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:08,007 INFO L276 IsEmpty]: Start isEmpty. Operand 4483 states and 11981 transitions. [2021-06-05 00:35:08,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:08,014 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:08,014 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:08,014 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 00:35:08,014 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 00:35:08,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:08,015 INFO L82 PathProgramCache]: Analyzing trace with hash 805277953, now seen corresponding path program 3 times [2021-06-05 00:35:08,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:08,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491654128] [2021-06-05 00:35:08,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:08,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:08,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:08,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491654128] [2021-06-05 00:35:08,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491654128] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:08,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:08,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 00:35:08,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787314881] [2021-06-05 00:35:08,333 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 00:35:08,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:08,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 00:35:08,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:35:08,336 INFO L87 Difference]: Start difference. First operand 4483 states and 11981 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:08,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:08,965 INFO L93 Difference]: Finished difference Result 5390 states and 13897 transitions. [2021-06-05 00:35:08,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 00:35:08,966 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:08,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:08,973 INFO L225 Difference]: With dead ends: 5390 [2021-06-05 00:35:08,973 INFO L226 Difference]: Without dead ends: 5390 [2021-06-05 00:35:08,974 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 484.9ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-06-05 00:35:08,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5390 states. [2021-06-05 00:35:09,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5390 to 4516. [2021-06-05 00:35:09,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 4514 states have (on average 2.671466548515729) internal successors, (12059), 4515 states have internal predecessors, (12059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 12059 transitions. [2021-06-05 00:35:09,047 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 12059 transitions. Word has length 113 [2021-06-05 00:35:09,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:09,047 INFO L482 AbstractCegarLoop]: Abstraction has 4516 states and 12059 transitions. [2021-06-05 00:35:09,047 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:09,047 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 12059 transitions. [2021-06-05 00:35:09,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:09,055 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:09,055 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:09,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 00:35:09,055 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 00:35:09,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:09,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1321380929, now seen corresponding path program 4 times [2021-06-05 00:35:09,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:09,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408257390] [2021-06-05 00:35:09,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:09,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:09,497 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:09,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408257390] [2021-06-05 00:35:09,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408257390] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:09,497 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:09,497 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:09,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956572357] [2021-06-05 00:35:09,498 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:09,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:09,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:09,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:09,498 INFO L87 Difference]: Start difference. First operand 4516 states and 12059 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:10,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:10,790 INFO L93 Difference]: Finished difference Result 6181 states and 15940 transitions. [2021-06-05 00:35:10,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:35:10,790 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:10,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:10,798 INFO L225 Difference]: With dead ends: 6181 [2021-06-05 00:35:10,798 INFO L226 Difference]: Without dead ends: 6181 [2021-06-05 00:35:10,798 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1032.1ms TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 00:35:10,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6181 states. [2021-06-05 00:35:10,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6181 to 4526. [2021-06-05 00:35:10,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4526 states, 4524 states have (on average 2.6710875331564985) internal successors, (12084), 4525 states have internal predecessors, (12084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:10,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4526 states to 4526 states and 12084 transitions. [2021-06-05 00:35:10,872 INFO L78 Accepts]: Start accepts. Automaton has 4526 states and 12084 transitions. Word has length 113 [2021-06-05 00:35:10,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:10,873 INFO L482 AbstractCegarLoop]: Abstraction has 4526 states and 12084 transitions. [2021-06-05 00:35:10,873 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:10,873 INFO L276 IsEmpty]: Start isEmpty. Operand 4526 states and 12084 transitions. [2021-06-05 00:35:10,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:10,880 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:10,881 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:10,881 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 00:35:10,881 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 00:35:10,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:10,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1510292627, now seen corresponding path program 5 times [2021-06-05 00:35:10,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:10,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351704204] [2021-06-05 00:35:10,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:11,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:11,188 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:11,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351704204] [2021-06-05 00:35:11,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351704204] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:11,188 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:11,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 00:35:11,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134465990] [2021-06-05 00:35:11,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 00:35:11,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:11,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 00:35:11,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:35:11,189 INFO L87 Difference]: Start difference. First operand 4526 states and 12084 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:11,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:11,840 INFO L93 Difference]: Finished difference Result 4980 states and 13019 transitions. [2021-06-05 00:35:11,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 00:35:11,840 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:11,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:11,845 INFO L225 Difference]: With dead ends: 4980 [2021-06-05 00:35:11,846 INFO L226 Difference]: Without dead ends: 4980 [2021-06-05 00:35:11,846 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 483.2ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-06-05 00:35:11,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4980 states. [2021-06-05 00:35:11,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4980 to 4394. [2021-06-05 00:35:11,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4394 states, 4392 states have (on average 2.680327868852459) internal successors, (11772), 4393 states have internal predecessors, (11772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:11,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4394 states to 4394 states and 11772 transitions. [2021-06-05 00:35:11,928 INFO L78 Accepts]: Start accepts. Automaton has 4394 states and 11772 transitions. Word has length 113 [2021-06-05 00:35:11,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:11,928 INFO L482 AbstractCegarLoop]: Abstraction has 4394 states and 11772 transitions. [2021-06-05 00:35:11,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:11,929 INFO L276 IsEmpty]: Start isEmpty. Operand 4394 states and 11772 transitions. [2021-06-05 00:35:11,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:11,935 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:11,935 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:11,935 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 00:35:11,936 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 00:35:11,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:11,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1917779761, now seen corresponding path program 6 times [2021-06-05 00:35:11,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:11,936 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959539428] [2021-06-05 00:35:11,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:12,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:12,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:12,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959539428] [2021-06-05 00:35:12,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959539428] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:12,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:12,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:12,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940182567] [2021-06-05 00:35:12,333 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:12,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:12,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:12,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:12,338 INFO L87 Difference]: Start difference. First operand 4394 states and 11772 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:13,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:13,448 INFO L93 Difference]: Finished difference Result 5437 states and 13948 transitions. [2021-06-05 00:35:13,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:35:13,449 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:13,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:13,454 INFO L225 Difference]: With dead ends: 5437 [2021-06-05 00:35:13,454 INFO L226 Difference]: Without dead ends: 5437 [2021-06-05 00:35:13,455 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 829.5ms TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 00:35:13,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2021-06-05 00:35:13,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 4424. [2021-06-05 00:35:13,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4422 states have (on average 2.6791044776119404) internal successors, (11847), 4423 states have internal predecessors, (11847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:13,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 11847 transitions. [2021-06-05 00:35:13,526 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 11847 transitions. Word has length 113 [2021-06-05 00:35:13,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:13,527 INFO L482 AbstractCegarLoop]: Abstraction has 4424 states and 11847 transitions. [2021-06-05 00:35:13,527 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:13,527 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 11847 transitions. [2021-06-05 00:35:13,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:13,532 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:13,532 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:13,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 00:35:13,532 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 00:35:13,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:13,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1710433517, now seen corresponding path program 7 times [2021-06-05 00:35:13,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:13,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985937008] [2021-06-05 00:35:13,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:13,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:13,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:13,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985937008] [2021-06-05 00:35:13,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985937008] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:13,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:13,868 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:13,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997183065] [2021-06-05 00:35:13,868 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:13,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:13,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:13,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:13,869 INFO L87 Difference]: Start difference. First operand 4424 states and 11847 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:15,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:15,218 INFO L93 Difference]: Finished difference Result 10454 states and 27256 transitions. [2021-06-05 00:35:15,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 00:35:15,219 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:15,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:15,225 INFO L225 Difference]: With dead ends: 10454 [2021-06-05 00:35:15,225 INFO L226 Difference]: Without dead ends: 10454 [2021-06-05 00:35:15,226 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1105.1ms TimeCoverageRelationStatistics Valid=287, Invalid=769, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 00:35:15,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2021-06-05 00:35:15,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 4496. [2021-06-05 00:35:15,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4496 states, 4494 states have (on average 2.684245660881175) internal successors, (12063), 4495 states have internal predecessors, (12063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:15,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4496 states to 4496 states and 12063 transitions. [2021-06-05 00:35:15,306 INFO L78 Accepts]: Start accepts. Automaton has 4496 states and 12063 transitions. Word has length 113 [2021-06-05 00:35:15,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:15,306 INFO L482 AbstractCegarLoop]: Abstraction has 4496 states and 12063 transitions. [2021-06-05 00:35:15,306 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:15,306 INFO L276 IsEmpty]: Start isEmpty. Operand 4496 states and 12063 transitions. [2021-06-05 00:35:15,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:15,311 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:15,311 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:15,311 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 00:35:15,312 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 00:35:15,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:15,312 INFO L82 PathProgramCache]: Analyzing trace with hash 162697191, now seen corresponding path program 8 times [2021-06-05 00:35:15,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:15,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621355421] [2021-06-05 00:35:15,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:15,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:15,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:15,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621355421] [2021-06-05 00:35:15,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621355421] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:15,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:15,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:15,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906788919] [2021-06-05 00:35:15,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:15,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:15,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:15,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:15,642 INFO L87 Difference]: Start difference. First operand 4496 states and 12063 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:16,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:16,975 INFO L93 Difference]: Finished difference Result 9577 states and 24842 transitions. [2021-06-05 00:35:16,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:35:16,975 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:16,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:16,984 INFO L225 Difference]: With dead ends: 9577 [2021-06-05 00:35:16,984 INFO L226 Difference]: Without dead ends: 9577 [2021-06-05 00:35:16,985 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1017.3ms TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 00:35:17,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9577 states. [2021-06-05 00:35:17,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9577 to 4436. [2021-06-05 00:35:17,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4436 states, 4434 states have (on average 2.6799729364005414) internal successors, (11883), 4435 states have internal predecessors, (11883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:17,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 11883 transitions. [2021-06-05 00:35:17,063 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 11883 transitions. Word has length 113 [2021-06-05 00:35:17,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:17,063 INFO L482 AbstractCegarLoop]: Abstraction has 4436 states and 11883 transitions. [2021-06-05 00:35:17,063 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:17,063 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 11883 transitions. [2021-06-05 00:35:17,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:17,068 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:17,068 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:17,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 00:35:17,068 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 00:35:17,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:17,069 INFO L82 PathProgramCache]: Analyzing trace with hash -513811625, now seen corresponding path program 9 times [2021-06-05 00:35:17,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:17,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182265231] [2021-06-05 00:35:17,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:17,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:17,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:17,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182265231] [2021-06-05 00:35:17,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182265231] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:17,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:17,397 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:17,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317886749] [2021-06-05 00:35:17,398 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:17,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:17,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:17,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:17,398 INFO L87 Difference]: Start difference. First operand 4436 states and 11883 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:19,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:19,299 INFO L93 Difference]: Finished difference Result 9044 states and 23337 transitions. [2021-06-05 00:35:19,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:35:19,300 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:19,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:19,307 INFO L225 Difference]: With dead ends: 9044 [2021-06-05 00:35:19,307 INFO L226 Difference]: Without dead ends: 9044 [2021-06-05 00:35:19,307 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1492.3ms TimeCoverageRelationStatistics Valid=435, Invalid=1125, Unknown=0, NotChecked=0, Total=1560 [2021-06-05 00:35:19,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9044 states. [2021-06-05 00:35:19,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9044 to 4575. [2021-06-05 00:35:19,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4575 states, 4573 states have (on average 2.684014869888476) internal successors, (12274), 4574 states have internal predecessors, (12274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:19,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 12274 transitions. [2021-06-05 00:35:19,387 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 12274 transitions. Word has length 113 [2021-06-05 00:35:19,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:19,387 INFO L482 AbstractCegarLoop]: Abstraction has 4575 states and 12274 transitions. [2021-06-05 00:35:19,387 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:19,387 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 12274 transitions. [2021-06-05 00:35:19,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:19,393 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:19,393 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:19,394 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 00:35:19,394 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 00:35:19,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:19,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1668934599, now seen corresponding path program 10 times [2021-06-05 00:35:19,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:19,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389729116] [2021-06-05 00:35:19,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:19,737 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 00:35:19,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:19,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389729116] [2021-06-05 00:35:19,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389729116] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:19,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:19,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:19,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118917625] [2021-06-05 00:35:19,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:19,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:19,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:19,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:19,739 INFO L87 Difference]: Start difference. First operand 4575 states and 12274 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:21,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:21,188 INFO L93 Difference]: Finished difference Result 7287 states and 18606 transitions. [2021-06-05 00:35:21,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 00:35:21,188 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:21,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:21,195 INFO L225 Difference]: With dead ends: 7287 [2021-06-05 00:35:21,195 INFO L226 Difference]: Without dead ends: 7287 [2021-06-05 00:35:21,195 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1154.4ms TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:35:21,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7287 states. [2021-06-05 00:35:21,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7287 to 4581. [2021-06-05 00:35:21,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4581 states, 4579 states have (on average 2.6837737497270147) internal successors, (12289), 4580 states have internal predecessors, (12289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:21,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4581 states to 4581 states and 12289 transitions. [2021-06-05 00:35:21,256 INFO L78 Accepts]: Start accepts. Automaton has 4581 states and 12289 transitions. Word has length 113 [2021-06-05 00:35:21,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:21,257 INFO L482 AbstractCegarLoop]: Abstraction has 4581 states and 12289 transitions. [2021-06-05 00:35:21,257 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:21,257 INFO L276 IsEmpty]: Start isEmpty. Operand 4581 states and 12289 transitions. [2021-06-05 00:35:21,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:21,262 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:21,262 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:21,262 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 00:35:21,262 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 00:35:21,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:21,263 INFO L82 PathProgramCache]: Analyzing trace with hash -20191337, now seen corresponding path program 11 times [2021-06-05 00:35:21,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:21,263 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442819890] [2021-06-05 00:35:21,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:21,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:21,593 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:21,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442819890] [2021-06-05 00:35:21,593 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442819890] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:21,593 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:21,593 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:21,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965979212] [2021-06-05 00:35:21,593 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:21,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:21,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:21,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:21,594 INFO L87 Difference]: Start difference. First operand 4581 states and 12289 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:22,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:22,834 INFO L93 Difference]: Finished difference Result 7156 states and 18133 transitions. [2021-06-05 00:35:22,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:35:22,834 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:22,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:22,840 INFO L225 Difference]: With dead ends: 7156 [2021-06-05 00:35:22,841 INFO L226 Difference]: Without dead ends: 7156 [2021-06-05 00:35:22,841 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 962.7ms TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 00:35:22,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7156 states. [2021-06-05 00:35:22,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7156 to 4583. [2021-06-05 00:35:22,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 4581 states have (on average 2.6836935166994107) internal successors, (12294), 4582 states have internal predecessors, (12294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:22,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 12294 transitions. [2021-06-05 00:35:22,909 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 12294 transitions. Word has length 113 [2021-06-05 00:35:22,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:22,909 INFO L482 AbstractCegarLoop]: Abstraction has 4583 states and 12294 transitions. [2021-06-05 00:35:22,909 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:22,909 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 12294 transitions. [2021-06-05 00:35:22,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:22,915 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:22,915 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:22,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 00:35:22,915 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 00:35:22,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:22,915 INFO L82 PathProgramCache]: Analyzing trace with hash -254383661, now seen corresponding path program 12 times [2021-06-05 00:35:22,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:22,915 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140114764] [2021-06-05 00:35:22,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:23,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:23,226 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:23,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140114764] [2021-06-05 00:35:23,226 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140114764] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:23,226 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:23,227 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:23,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404028349] [2021-06-05 00:35:23,227 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:23,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:23,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:23,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:23,228 INFO L87 Difference]: Start difference. First operand 4583 states and 12294 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:24,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:24,479 INFO L93 Difference]: Finished difference Result 6999 states and 17778 transitions. [2021-06-05 00:35:24,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 00:35:24,479 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:24,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:24,485 INFO L225 Difference]: With dead ends: 6999 [2021-06-05 00:35:24,485 INFO L226 Difference]: Without dead ends: 6999 [2021-06-05 00:35:24,486 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 984.4ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:35:24,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6999 states. [2021-06-05 00:35:24,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6999 to 4583. [2021-06-05 00:35:24,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 4581 states have (on average 2.6836935166994107) internal successors, (12294), 4582 states have internal predecessors, (12294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:24,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 12294 transitions. [2021-06-05 00:35:24,550 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 12294 transitions. Word has length 113 [2021-06-05 00:35:24,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:24,550 INFO L482 AbstractCegarLoop]: Abstraction has 4583 states and 12294 transitions. [2021-06-05 00:35:24,550 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:24,550 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 12294 transitions. [2021-06-05 00:35:24,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:24,557 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:24,557 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:24,558 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 00:35:24,558 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 00:35:24,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:24,558 INFO L82 PathProgramCache]: Analyzing trace with hash 202832805, now seen corresponding path program 13 times [2021-06-05 00:35:24,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:24,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052961339] [2021-06-05 00:35:24,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:24,920 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 00:35:24,921 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:24,921 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052961339] [2021-06-05 00:35:24,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052961339] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:24,921 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:24,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:24,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640148604] [2021-06-05 00:35:24,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:24,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:24,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:24,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:24,923 INFO L87 Difference]: Start difference. First operand 4583 states and 12294 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:25,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:25,910 INFO L93 Difference]: Finished difference Result 6304 states and 15945 transitions. [2021-06-05 00:35:25,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:35:25,910 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:25,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:25,916 INFO L225 Difference]: With dead ends: 6304 [2021-06-05 00:35:25,916 INFO L226 Difference]: Without dead ends: 6304 [2021-06-05 00:35:25,916 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 763.4ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 00:35:25,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6304 states. [2021-06-05 00:35:25,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6304 to 4589. [2021-06-05 00:35:25,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4587 states have (on average 2.683453237410072) internal successors, (12309), 4588 states have internal predecessors, (12309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:25,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 12309 transitions. [2021-06-05 00:35:25,976 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 12309 transitions. Word has length 113 [2021-06-05 00:35:25,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:25,976 INFO L482 AbstractCegarLoop]: Abstraction has 4589 states and 12309 transitions. [2021-06-05 00:35:25,976 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:25,976 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 12309 transitions. [2021-06-05 00:35:25,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:25,980 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:25,981 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:25,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 00:35:25,981 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 00:35:25,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:25,981 INFO L82 PathProgramCache]: Analyzing trace with hash -587035673, now seen corresponding path program 14 times [2021-06-05 00:35:25,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:25,981 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605987263] [2021-06-05 00:35:25,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:26,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:26,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:26,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605987263] [2021-06-05 00:35:26,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605987263] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:26,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:26,303 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:26,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909791215] [2021-06-05 00:35:26,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:26,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:26,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:26,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:26,304 INFO L87 Difference]: Start difference. First operand 4589 states and 12309 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:27,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:27,402 INFO L93 Difference]: Finished difference Result 6426 states and 16176 transitions. [2021-06-05 00:35:27,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:35:27,402 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:27,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:27,408 INFO L225 Difference]: With dead ends: 6426 [2021-06-05 00:35:27,408 INFO L226 Difference]: Without dead ends: 6426 [2021-06-05 00:35:27,408 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 735.3ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 00:35:27,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6426 states. [2021-06-05 00:35:27,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6426 to 4591. [2021-06-05 00:35:27,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4591 states, 4589 states have (on average 2.683373283939856) internal successors, (12314), 4590 states have internal predecessors, (12314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:27,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 12314 transitions. [2021-06-05 00:35:27,472 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 12314 transitions. Word has length 113 [2021-06-05 00:35:27,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:27,472 INFO L482 AbstractCegarLoop]: Abstraction has 4591 states and 12314 transitions. [2021-06-05 00:35:27,472 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:27,473 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 12314 transitions. [2021-06-05 00:35:27,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:27,477 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:27,477 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:27,477 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 00:35:27,477 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 00:35:27,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:27,477 INFO L82 PathProgramCache]: Analyzing trace with hash -821227997, now seen corresponding path program 15 times [2021-06-05 00:35:27,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:27,477 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165238684] [2021-06-05 00:35:27,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:27,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:27,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165238684] [2021-06-05 00:35:27,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165238684] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:27,802 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:27,802 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:27,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654742384] [2021-06-05 00:35:27,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:27,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:27,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:27,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:27,803 INFO L87 Difference]: Start difference. First operand 4591 states and 12314 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:28,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:28,858 INFO L93 Difference]: Finished difference Result 6096 states and 15461 transitions. [2021-06-05 00:35:28,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 00:35:28,859 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:28,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:28,863 INFO L225 Difference]: With dead ends: 6096 [2021-06-05 00:35:28,863 INFO L226 Difference]: Without dead ends: 6096 [2021-06-05 00:35:28,863 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 833.4ms TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:35:28,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6096 states. [2021-06-05 00:35:28,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6096 to 4589. [2021-06-05 00:35:28,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4587 states have (on average 2.683453237410072) internal successors, (12309), 4588 states have internal predecessors, (12309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:28,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 12309 transitions. [2021-06-05 00:35:28,924 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 12309 transitions. Word has length 113 [2021-06-05 00:35:28,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:28,924 INFO L482 AbstractCegarLoop]: Abstraction has 4589 states and 12309 transitions. [2021-06-05 00:35:28,924 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:28,924 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 12309 transitions. [2021-06-05 00:35:28,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:28,928 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:28,928 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:28,928 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 00:35:28,929 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 00:35:28,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:28,929 INFO L82 PathProgramCache]: Analyzing trace with hash 81809679, now seen corresponding path program 16 times [2021-06-05 00:35:28,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:28,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753809921] [2021-06-05 00:35:28,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:29,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:29,242 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:29,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753809921] [2021-06-05 00:35:29,242 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753809921] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:29,242 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:29,242 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:29,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875407205] [2021-06-05 00:35:29,242 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:29,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:29,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:29,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:29,243 INFO L87 Difference]: Start difference. First operand 4589 states and 12309 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:30,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:30,515 INFO L93 Difference]: Finished difference Result 8284 states and 21529 transitions. [2021-06-05 00:35:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 00:35:30,515 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:30,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:30,522 INFO L225 Difference]: With dead ends: 8284 [2021-06-05 00:35:30,522 INFO L226 Difference]: Without dead ends: 8284 [2021-06-05 00:35:30,523 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1007.9ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 00:35:30,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8284 states. [2021-06-05 00:35:30,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8284 to 4589. [2021-06-05 00:35:30,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4587 states have (on average 2.683453237410072) internal successors, (12309), 4588 states have internal predecessors, (12309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:30,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 12309 transitions. [2021-06-05 00:35:30,589 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 12309 transitions. Word has length 113 [2021-06-05 00:35:30,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:30,589 INFO L482 AbstractCegarLoop]: Abstraction has 4589 states and 12309 transitions. [2021-06-05 00:35:30,589 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:30,589 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 12309 transitions. [2021-06-05 00:35:30,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:30,593 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:30,593 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:30,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 00:35:30,593 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 00:35:30,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:30,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1954940387, now seen corresponding path program 17 times [2021-06-05 00:35:30,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:30,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938537604] [2021-06-05 00:35:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:30,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:30,923 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:30,923 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938537604] [2021-06-05 00:35:30,923 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938537604] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:30,923 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:30,923 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:30,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170496702] [2021-06-05 00:35:30,923 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:30,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:30,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:30,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:30,925 INFO L87 Difference]: Start difference. First operand 4589 states and 12309 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:32,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:32,089 INFO L93 Difference]: Finished difference Result 7407 states and 19115 transitions. [2021-06-05 00:35:32,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:35:32,090 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:32,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:32,095 INFO L225 Difference]: With dead ends: 7407 [2021-06-05 00:35:32,095 INFO L226 Difference]: Without dead ends: 7407 [2021-06-05 00:35:32,095 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 972.6ms TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 00:35:32,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7407 states. [2021-06-05 00:35:32,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7407 to 4529. [2021-06-05 00:35:32,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4529 states, 4527 states have (on average 2.6792577866136513) internal successors, (12129), 4528 states have internal predecessors, (12129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:32,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 12129 transitions. [2021-06-05 00:35:32,149 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 12129 transitions. Word has length 113 [2021-06-05 00:35:32,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:32,149 INFO L482 AbstractCegarLoop]: Abstraction has 4529 states and 12129 transitions. [2021-06-05 00:35:32,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:32,150 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 12129 transitions. [2021-06-05 00:35:32,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:32,153 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:32,153 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:32,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 00:35:32,153 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 00:35:32,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:32,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1278431571, now seen corresponding path program 18 times [2021-06-05 00:35:32,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:32,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738234764] [2021-06-05 00:35:32,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:32,453 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 00:35:32,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:32,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738234764] [2021-06-05 00:35:32,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738234764] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:32,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:32,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:32,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775435734] [2021-06-05 00:35:32,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:32,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:32,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:32,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:32,454 INFO L87 Difference]: Start difference. First operand 4529 states and 12129 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:34,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:34,382 INFO L93 Difference]: Finished difference Result 10995 states and 28419 transitions. [2021-06-05 00:35:34,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 00:35:34,383 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:34,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:34,392 INFO L225 Difference]: With dead ends: 10995 [2021-06-05 00:35:34,392 INFO L226 Difference]: Without dead ends: 10995 [2021-06-05 00:35:34,393 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1468.3ms TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2021-06-05 00:35:34,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10995 states. [2021-06-05 00:35:34,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10995 to 4565. [2021-06-05 00:35:34,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4565 states, 4563 states have (on average 2.6817882971729126) internal successors, (12237), 4564 states have internal predecessors, (12237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:34,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4565 states to 4565 states and 12237 transitions. [2021-06-05 00:35:34,471 INFO L78 Accepts]: Start accepts. Automaton has 4565 states and 12237 transitions. Word has length 113 [2021-06-05 00:35:34,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:34,471 INFO L482 AbstractCegarLoop]: Abstraction has 4565 states and 12237 transitions. [2021-06-05 00:35:34,471 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:34,471 INFO L276 IsEmpty]: Start isEmpty. Operand 4565 states and 12237 transitions. [2021-06-05 00:35:34,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:34,475 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:34,475 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:34,475 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 00:35:34,475 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 00:35:34,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:34,475 INFO L82 PathProgramCache]: Analyzing trace with hash -833789501, now seen corresponding path program 19 times [2021-06-05 00:35:34,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:34,475 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867334758] [2021-06-05 00:35:34,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:34,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:34,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:34,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867334758] [2021-06-05 00:35:34,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867334758] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:34,799 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:34,799 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:34,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199771408] [2021-06-05 00:35:34,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:34,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:34,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:34,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:34,799 INFO L87 Difference]: Start difference. First operand 4565 states and 12237 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:36,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:36,159 INFO L93 Difference]: Finished difference Result 9238 states and 23688 transitions. [2021-06-05 00:35:36,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 00:35:36,159 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:36,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:36,167 INFO L225 Difference]: With dead ends: 9238 [2021-06-05 00:35:36,167 INFO L226 Difference]: Without dead ends: 9238 [2021-06-05 00:35:36,167 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1121.4ms TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:35:36,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9238 states. [2021-06-05 00:35:36,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9238 to 4529. [2021-06-05 00:35:36,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4529 states, 4527 states have (on average 2.6792577866136513) internal successors, (12129), 4528 states have internal predecessors, (12129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:36,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 12129 transitions. [2021-06-05 00:35:36,242 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 12129 transitions. Word has length 113 [2021-06-05 00:35:36,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:36,243 INFO L482 AbstractCegarLoop]: Abstraction has 4529 states and 12129 transitions. [2021-06-05 00:35:36,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:36,243 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 12129 transitions. [2021-06-05 00:35:36,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:36,246 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:36,247 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:36,247 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 00:35:36,247 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 00:35:36,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:36,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1772051859, now seen corresponding path program 20 times [2021-06-05 00:35:36,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:36,249 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347383861] [2021-06-05 00:35:36,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:36,591 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 00:35:36,591 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:36,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347383861] [2021-06-05 00:35:36,591 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347383861] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:36,591 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:36,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:36,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128297946] [2021-06-05 00:35:36,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:36,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:36,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:36,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:36,592 INFO L87 Difference]: Start difference. First operand 4529 states and 12129 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:37,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:37,802 INFO L93 Difference]: Finished difference Result 8169 states and 20857 transitions. [2021-06-05 00:35:37,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:35:37,802 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:37,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:37,810 INFO L225 Difference]: With dead ends: 8169 [2021-06-05 00:35:37,810 INFO L226 Difference]: Without dead ends: 8169 [2021-06-05 00:35:37,810 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 974.0ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 00:35:37,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8169 states. [2021-06-05 00:35:37,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8169 to 4531. [2021-06-05 00:35:37,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4531 states, 4529 states have (on average 2.679178626628395) internal successors, (12134), 4530 states have internal predecessors, (12134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:37,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4531 states to 4531 states and 12134 transitions. [2021-06-05 00:35:37,879 INFO L78 Accepts]: Start accepts. Automaton has 4531 states and 12134 transitions. Word has length 113 [2021-06-05 00:35:37,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:37,879 INFO L482 AbstractCegarLoop]: Abstraction has 4531 states and 12134 transitions. [2021-06-05 00:35:37,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:37,879 INFO L276 IsEmpty]: Start isEmpty. Operand 4531 states and 12134 transitions. [2021-06-05 00:35:37,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:37,882 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:37,883 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:37,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 00:35:37,883 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 00:35:37,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:37,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1537859535, now seen corresponding path program 21 times [2021-06-05 00:35:37,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:37,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111507538] [2021-06-05 00:35:37,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:38,181 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 00:35:38,182 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:38,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111507538] [2021-06-05 00:35:38,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111507538] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:38,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:38,182 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:38,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110310533] [2021-06-05 00:35:38,182 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:38,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:38,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:38,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:38,183 INFO L87 Difference]: Start difference. First operand 4531 states and 12134 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:39,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:39,383 INFO L93 Difference]: Finished difference Result 8044 states and 20567 transitions. [2021-06-05 00:35:39,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 00:35:39,384 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:39,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:39,391 INFO L225 Difference]: With dead ends: 8044 [2021-06-05 00:35:39,391 INFO L226 Difference]: Without dead ends: 8044 [2021-06-05 00:35:39,391 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 998.7ms TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:35:39,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8044 states. [2021-06-05 00:35:39,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8044 to 4517. [2021-06-05 00:35:39,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4517 states, 4515 states have (on average 2.678405315614618) internal successors, (12093), 4516 states have internal predecessors, (12093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:39,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 12093 transitions. [2021-06-05 00:35:39,462 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 12093 transitions. Word has length 113 [2021-06-05 00:35:39,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:39,462 INFO L482 AbstractCegarLoop]: Abstraction has 4517 states and 12093 transitions. [2021-06-05 00:35:39,462 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:39,462 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 12093 transitions. [2021-06-05 00:35:39,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:39,466 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:39,466 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:39,467 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 00:35:39,467 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 00:35:39,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:39,467 INFO L82 PathProgramCache]: Analyzing trace with hash -223166485, now seen corresponding path program 22 times [2021-06-05 00:35:39,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:39,467 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745924754] [2021-06-05 00:35:39,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:39,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:39,790 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:39,790 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745924754] [2021-06-05 00:35:39,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745924754] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:39,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:39,791 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:39,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923512290] [2021-06-05 00:35:39,791 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:39,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:39,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:39,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:39,792 INFO L87 Difference]: Start difference. First operand 4517 states and 12093 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:41,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:41,837 INFO L93 Difference]: Finished difference Result 6936 states and 17741 transitions. [2021-06-05 00:35:41,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:35:41,837 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:41,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:41,843 INFO L225 Difference]: With dead ends: 6936 [2021-06-05 00:35:41,843 INFO L226 Difference]: Without dead ends: 6936 [2021-06-05 00:35:41,845 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1544.6ms TimeCoverageRelationStatistics Valid=470, Invalid=1252, Unknown=0, NotChecked=0, Total=1722 [2021-06-05 00:35:41,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6936 states. [2021-06-05 00:35:41,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6936 to 3470. [2021-06-05 00:35:41,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3470 states, 3468 states have (on average 2.631487889273356) internal successors, (9126), 3469 states have internal predecessors, (9126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:41,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3470 states to 3470 states and 9126 transitions. [2021-06-05 00:35:41,895 INFO L78 Accepts]: Start accepts. Automaton has 3470 states and 9126 transitions. Word has length 113 [2021-06-05 00:35:41,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:41,895 INFO L482 AbstractCegarLoop]: Abstraction has 3470 states and 9126 transitions. [2021-06-05 00:35:41,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:41,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3470 states and 9126 transitions. [2021-06-05 00:35:41,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:41,898 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:41,898 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:41,898 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 00:35:41,898 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 00:35:41,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:41,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1959579739, now seen corresponding path program 23 times [2021-06-05 00:35:41,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:41,899 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156955952] [2021-06-05 00:35:41,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:42,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:42,213 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:42,213 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156955952] [2021-06-05 00:35:42,213 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156955952] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:42,213 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:42,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:42,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138177214] [2021-06-05 00:35:42,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:42,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:42,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:42,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:42,214 INFO L87 Difference]: Start difference. First operand 3470 states and 9126 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:44,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:44,025 INFO L93 Difference]: Finished difference Result 7509 states and 18951 transitions. [2021-06-05 00:35:44,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:35:44,026 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:44,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:44,032 INFO L225 Difference]: With dead ends: 7509 [2021-06-05 00:35:44,032 INFO L226 Difference]: Without dead ends: 7509 [2021-06-05 00:35:44,033 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1461.8ms TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722 [2021-06-05 00:35:44,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7509 states. [2021-06-05 00:35:44,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7509 to 3434. [2021-06-05 00:35:44,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3432 states have (on average 2.6276223776223775) internal successors, (9018), 3433 states have internal predecessors, (9018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:44,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 9018 transitions. [2021-06-05 00:35:44,085 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 9018 transitions. Word has length 113 [2021-06-05 00:35:44,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:44,085 INFO L482 AbstractCegarLoop]: Abstraction has 3434 states and 9018 transitions. [2021-06-05 00:35:44,085 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:44,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 9018 transitions. [2021-06-05 00:35:44,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:44,088 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:44,088 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:44,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 00:35:44,088 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 00:35:44,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:44,088 INFO L82 PathProgramCache]: Analyzing trace with hash -2016838673, now seen corresponding path program 24 times [2021-06-05 00:35:44,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:44,089 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494210598] [2021-06-05 00:35:44,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:44,403 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:44,403 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494210598] [2021-06-05 00:35:44,403 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494210598] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:44,403 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:44,403 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:44,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835492441] [2021-06-05 00:35:44,404 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:44,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:44,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:44,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:44,404 INFO L87 Difference]: Start difference. First operand 3434 states and 9018 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:45,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:45,729 INFO L93 Difference]: Finished difference Result 5115 states and 12793 transitions. [2021-06-05 00:35:45,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-05 00:35:45,729 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:45,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:45,746 INFO L225 Difference]: With dead ends: 5115 [2021-06-05 00:35:45,746 INFO L226 Difference]: Without dead ends: 5115 [2021-06-05 00:35:45,746 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1085.8ms TimeCoverageRelationStatistics Valid=333, Invalid=927, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 00:35:45,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5115 states. [2021-06-05 00:35:45,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5115 to 3452. [2021-06-05 00:35:45,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3450 states have (on average 2.6269565217391304) internal successors, (9063), 3451 states have internal predecessors, (9063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:45,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 9063 transitions. [2021-06-05 00:35:45,788 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 9063 transitions. Word has length 113 [2021-06-05 00:35:45,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:45,788 INFO L482 AbstractCegarLoop]: Abstraction has 3452 states and 9063 transitions. [2021-06-05 00:35:45,788 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:45,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 9063 transitions. [2021-06-05 00:35:45,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:45,791 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:45,791 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:45,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 00:35:45,792 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 00:35:45,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:45,792 INFO L82 PathProgramCache]: Analyzing trace with hash 927277213, now seen corresponding path program 25 times [2021-06-05 00:35:45,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:45,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333286696] [2021-06-05 00:35:45,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:46,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:46,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:46,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333286696] [2021-06-05 00:35:46,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333286696] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:46,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:46,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:46,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276460300] [2021-06-05 00:35:46,119 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:46,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:46,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:46,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:46,120 INFO L87 Difference]: Start difference. First operand 3452 states and 9063 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:47,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:47,163 INFO L93 Difference]: Finished difference Result 5010 states and 12385 transitions. [2021-06-05 00:35:47,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:35:47,164 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:47,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:47,168 INFO L225 Difference]: With dead ends: 5010 [2021-06-05 00:35:47,168 INFO L226 Difference]: Without dead ends: 5010 [2021-06-05 00:35:47,169 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 892.0ms TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 00:35:47,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5010 states. [2021-06-05 00:35:47,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5010 to 3460. [2021-06-05 00:35:47,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3460 states, 3458 states have (on average 2.626662810873337) internal successors, (9083), 3459 states have internal predecessors, (9083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:47,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 9083 transitions. [2021-06-05 00:35:47,214 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 9083 transitions. Word has length 113 [2021-06-05 00:35:47,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:47,215 INFO L482 AbstractCegarLoop]: Abstraction has 3460 states and 9083 transitions. [2021-06-05 00:35:47,215 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:47,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 9083 transitions. [2021-06-05 00:35:47,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:47,218 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:47,218 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:47,218 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 00:35:47,218 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 00:35:47,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:47,218 INFO L82 PathProgramCache]: Analyzing trace with hash 693084889, now seen corresponding path program 26 times [2021-06-05 00:35:47,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:47,218 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867069544] [2021-06-05 00:35:47,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:47,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:47,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:47,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867069544] [2021-06-05 00:35:47,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867069544] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:47,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:47,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:47,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891922453] [2021-06-05 00:35:47,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:47,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:47,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:47,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:47,524 INFO L87 Difference]: Start difference. First operand 3460 states and 9083 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:48,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:48,691 INFO L93 Difference]: Finished difference Result 5475 states and 13368 transitions. [2021-06-05 00:35:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 00:35:48,691 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:48,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:48,696 INFO L225 Difference]: With dead ends: 5475 [2021-06-05 00:35:48,696 INFO L226 Difference]: Without dead ends: 5475 [2021-06-05 00:35:48,696 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 953.8ms TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:35:48,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5475 states. [2021-06-05 00:35:48,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5475 to 3458. [2021-06-05 00:35:48,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3458 states, 3456 states have (on average 2.626736111111111) internal successors, (9078), 3457 states have internal predecessors, (9078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:48,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3458 states to 3458 states and 9078 transitions. [2021-06-05 00:35:48,741 INFO L78 Accepts]: Start accepts. Automaton has 3458 states and 9078 transitions. Word has length 113 [2021-06-05 00:35:48,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:48,741 INFO L482 AbstractCegarLoop]: Abstraction has 3458 states and 9078 transitions. [2021-06-05 00:35:48,741 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:48,741 INFO L276 IsEmpty]: Start isEmpty. Operand 3458 states and 9078 transitions. [2021-06-05 00:35:48,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:48,744 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:48,744 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:48,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 00:35:48,745 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 00:35:48,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:48,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1294164801, now seen corresponding path program 27 times [2021-06-05 00:35:48,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:48,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081615969] [2021-06-05 00:35:48,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:49,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:49,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:49,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081615969] [2021-06-05 00:35:49,078 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081615969] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:49,078 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:49,078 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:49,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604166756] [2021-06-05 00:35:49,078 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:49,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:49,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:49,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:49,079 INFO L87 Difference]: Start difference. First operand 3458 states and 9078 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:50,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:50,396 INFO L93 Difference]: Finished difference Result 4851 states and 12025 transitions. [2021-06-05 00:35:50,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-05 00:35:50,397 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:50,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:50,401 INFO L225 Difference]: With dead ends: 4851 [2021-06-05 00:35:50,401 INFO L226 Difference]: Without dead ends: 4851 [2021-06-05 00:35:50,402 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1027.8ms TimeCoverageRelationStatistics Valid=322, Invalid=938, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 00:35:50,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4851 states. [2021-06-05 00:35:50,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4851 to 3458. [2021-06-05 00:35:50,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3458 states, 3456 states have (on average 2.626736111111111) internal successors, (9078), 3457 states have internal predecessors, (9078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:50,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3458 states to 3458 states and 9078 transitions. [2021-06-05 00:35:50,450 INFO L78 Accepts]: Start accepts. Automaton has 3458 states and 9078 transitions. Word has length 113 [2021-06-05 00:35:50,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:50,450 INFO L482 AbstractCegarLoop]: Abstraction has 3458 states and 9078 transitions. [2021-06-05 00:35:50,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:50,450 INFO L276 IsEmpty]: Start isEmpty. Operand 3458 states and 9078 transitions. [2021-06-05 00:35:50,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:50,453 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:50,453 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:50,453 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 00:35:50,453 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 00:35:50,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:50,454 INFO L82 PathProgramCache]: Analyzing trace with hash -2039471343, now seen corresponding path program 28 times [2021-06-05 00:35:50,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:50,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099836266] [2021-06-05 00:35:50,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:50,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:50,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:50,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099836266] [2021-06-05 00:35:50,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099836266] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:50,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:50,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:50,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092157607] [2021-06-05 00:35:50,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:50,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:50,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:50,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:50,782 INFO L87 Difference]: Start difference. First operand 3458 states and 9078 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:51,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:51,539 INFO L93 Difference]: Finished difference Result 4343 states and 10955 transitions. [2021-06-05 00:35:51,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 00:35:51,539 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:51,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:51,543 INFO L225 Difference]: With dead ends: 4343 [2021-06-05 00:35:51,543 INFO L226 Difference]: Without dead ends: 4343 [2021-06-05 00:35:51,543 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 660.8ms TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 00:35:51,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4343 states. [2021-06-05 00:35:51,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4343 to 3428. [2021-06-05 00:35:51,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3428 states, 3426 states have (on average 2.62784588441331) internal successors, (9003), 3427 states have internal predecessors, (9003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:51,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 9003 transitions. [2021-06-05 00:35:51,583 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 9003 transitions. Word has length 113 [2021-06-05 00:35:51,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:51,583 INFO L482 AbstractCegarLoop]: Abstraction has 3428 states and 9003 transitions. [2021-06-05 00:35:51,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:51,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 9003 transitions. [2021-06-05 00:35:51,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:51,586 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:51,586 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:51,586 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 00:35:51,586 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 00:35:51,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:51,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1465627475, now seen corresponding path program 29 times [2021-06-05 00:35:51,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:51,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258781270] [2021-06-05 00:35:51,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:51,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:51,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:51,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258781270] [2021-06-05 00:35:51,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258781270] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:51,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:51,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:51,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680791946] [2021-06-05 00:35:51,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:51,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:51,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:51,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:51,902 INFO L87 Difference]: Start difference. First operand 3428 states and 9003 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:52,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:52,813 INFO L93 Difference]: Finished difference Result 5140 states and 12658 transitions. [2021-06-05 00:35:52,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 00:35:52,813 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:52,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:52,817 INFO L225 Difference]: With dead ends: 5140 [2021-06-05 00:35:52,817 INFO L226 Difference]: Without dead ends: 5140 [2021-06-05 00:35:52,818 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 723.2ms TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 00:35:52,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5140 states. [2021-06-05 00:35:52,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5140 to 3430. [2021-06-05 00:35:52,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3430 states, 3428 states have (on average 2.627771295215869) internal successors, (9008), 3429 states have internal predecessors, (9008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:52,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 9008 transitions. [2021-06-05 00:35:52,861 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 9008 transitions. Word has length 113 [2021-06-05 00:35:52,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:52,861 INFO L482 AbstractCegarLoop]: Abstraction has 3430 states and 9008 transitions. [2021-06-05 00:35:52,861 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:52,861 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 9008 transitions. [2021-06-05 00:35:52,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:52,864 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:52,864 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:52,864 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 00:35:52,864 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 00:35:52,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:52,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1231435151, now seen corresponding path program 30 times [2021-06-05 00:35:52,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:52,864 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804506625] [2021-06-05 00:35:52,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:53,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:53,156 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:53,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804506625] [2021-06-05 00:35:53,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804506625] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:53,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:53,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:53,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989991521] [2021-06-05 00:35:53,157 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:53,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:53,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:53,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:53,157 INFO L87 Difference]: Start difference. First operand 3430 states and 9008 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:54,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:54,226 INFO L93 Difference]: Finished difference Result 4810 states and 11943 transitions. [2021-06-05 00:35:54,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:35:54,226 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:54,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:54,230 INFO L225 Difference]: With dead ends: 4810 [2021-06-05 00:35:54,230 INFO L226 Difference]: Without dead ends: 4810 [2021-06-05 00:35:54,230 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 737.7ms TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:35:54,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-06-05 00:35:54,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 3422. [2021-06-05 00:35:54,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3422 states, 3420 states have (on average 2.6280701754385967) internal successors, (8988), 3421 states have internal predecessors, (8988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:54,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3422 states to 3422 states and 8988 transitions. [2021-06-05 00:35:54,268 INFO L78 Accepts]: Start accepts. Automaton has 3422 states and 8988 transitions. Word has length 113 [2021-06-05 00:35:54,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:54,268 INFO L482 AbstractCegarLoop]: Abstraction has 3422 states and 8988 transitions. [2021-06-05 00:35:54,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:54,268 INFO L276 IsEmpty]: Start isEmpty. Operand 3422 states and 8988 transitions. [2021-06-05 00:35:54,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:54,271 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:54,271 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:54,271 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 00:35:54,271 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 00:35:54,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:54,271 INFO L82 PathProgramCache]: Analyzing trace with hash 534971981, now seen corresponding path program 31 times [2021-06-05 00:35:54,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:54,272 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388475912] [2021-06-05 00:35:54,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:54,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:54,575 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:54,575 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388475912] [2021-06-05 00:35:54,575 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388475912] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:54,575 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:54,575 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:54,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381812728] [2021-06-05 00:35:54,576 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:54,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:54,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:54,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:54,576 INFO L87 Difference]: Start difference. First operand 3422 states and 8988 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:55,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:55,527 INFO L93 Difference]: Finished difference Result 4432 states and 11108 transitions. [2021-06-05 00:35:55,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 00:35:55,527 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:55,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:55,531 INFO L225 Difference]: With dead ends: 4432 [2021-06-05 00:35:55,531 INFO L226 Difference]: Without dead ends: 4432 [2021-06-05 00:35:55,532 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 713.3ms TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 00:35:55,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4432 states. [2021-06-05 00:35:55,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4432 to 3412. [2021-06-05 00:35:55,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3410 states have (on average 2.6284457478005865) internal successors, (8963), 3411 states have internal predecessors, (8963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:55,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 8963 transitions. [2021-06-05 00:35:55,571 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 8963 transitions. Word has length 113 [2021-06-05 00:35:55,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:55,571 INFO L482 AbstractCegarLoop]: Abstraction has 3412 states and 8963 transitions. [2021-06-05 00:35:55,572 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:55,572 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 8963 transitions. [2021-06-05 00:35:55,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:55,574 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:55,574 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:55,574 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 00:35:55,575 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 00:35:55,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:55,575 INFO L82 PathProgramCache]: Analyzing trace with hash 300779657, now seen corresponding path program 32 times [2021-06-05 00:35:55,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:55,575 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593644668] [2021-06-05 00:35:55,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:55,901 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 00:35:55,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:55,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593644668] [2021-06-05 00:35:55,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593644668] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:55,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:55,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:55,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69064266] [2021-06-05 00:35:55,902 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:55,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:55,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:55,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:55,902 INFO L87 Difference]: Start difference. First operand 3412 states and 8963 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:56,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:56,948 INFO L93 Difference]: Finished difference Result 4897 states and 12091 transitions. [2021-06-05 00:35:56,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 00:35:56,948 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:56,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:56,952 INFO L225 Difference]: With dead ends: 4897 [2021-06-05 00:35:56,952 INFO L226 Difference]: Without dead ends: 4897 [2021-06-05 00:35:56,953 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 775.3ms TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 00:35:56,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4897 states. [2021-06-05 00:35:56,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4897 to 3410. [2021-06-05 00:35:56,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 3408 states have (on average 2.6285211267605635) internal successors, (8958), 3409 states have internal predecessors, (8958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:56,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 8958 transitions. [2021-06-05 00:35:56,990 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 8958 transitions. Word has length 113 [2021-06-05 00:35:56,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:56,991 INFO L482 AbstractCegarLoop]: Abstraction has 3410 states and 8958 transitions. [2021-06-05 00:35:56,991 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:56,991 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 8958 transitions. [2021-06-05 00:35:56,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-06-05 00:35:56,993 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:56,994 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:56,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 00:35:56,994 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 00:35:56,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:56,994 INFO L82 PathProgramCache]: Analyzing trace with hash 901859569, now seen corresponding path program 33 times [2021-06-05 00:35:56,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:56,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264192946] [2021-06-05 00:35:56,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:57,291 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 00:35:57,291 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:57,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264192946] [2021-06-05 00:35:57,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264192946] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:57,292 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:57,292 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-05 00:35:57,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500214127] [2021-06-05 00:35:57,293 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-05 00:35:57,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:57,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-05 00:35:57,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-05 00:35:57,294 INFO L87 Difference]: Start difference. First operand 3410 states and 8958 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:58,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:58,335 INFO L93 Difference]: Finished difference Result 4093 states and 10381 transitions. [2021-06-05 00:35:58,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 00:35:58,335 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-06-05 00:35:58,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:58,339 INFO L225 Difference]: With dead ends: 4093 [2021-06-05 00:35:58,339 INFO L226 Difference]: Without dead ends: 4093 [2021-06-05 00:35:58,339 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 848.1ms TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 00:35:58,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4093 states. [2021-06-05 00:35:58,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4093 to 3037. [2021-06-05 00:35:58,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3037 states, 3036 states have (on average 2.6831357048748354) internal successors, (8146), 3036 states have internal predecessors, (8146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:58,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3037 states to 3037 states and 8146 transitions. [2021-06-05 00:35:58,374 INFO L78 Accepts]: Start accepts. Automaton has 3037 states and 8146 transitions. Word has length 113 [2021-06-05 00:35:58,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:58,374 INFO L482 AbstractCegarLoop]: Abstraction has 3037 states and 8146 transitions. [2021-06-05 00:35:58,375 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:58,375 INFO L276 IsEmpty]: Start isEmpty. Operand 3037 states and 8146 transitions. [2021-06-05 00:35:58,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:35:58,377 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:58,377 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:58,377 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 00:35:58,377 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 00:35:58,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:58,377 INFO L82 PathProgramCache]: Analyzing trace with hash 634075415, now seen corresponding path program 1 times [2021-06-05 00:35:58,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:58,377 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385851137] [2021-06-05 00:35:58,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:58,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:58,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:58,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385851137] [2021-06-05 00:35:58,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385851137] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:58,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:58,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 00:35:58,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56766825] [2021-06-05 00:35:58,606 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 00:35:58,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:58,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 00:35:58,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:35:58,607 INFO L87 Difference]: Start difference. First operand 3037 states and 8146 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:58,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:35:58,896 INFO L93 Difference]: Finished difference Result 3487 states and 9268 transitions. [2021-06-05 00:35:58,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:35:58,896 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:35:58,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:35:58,911 INFO L225 Difference]: With dead ends: 3487 [2021-06-05 00:35:58,911 INFO L226 Difference]: Without dead ends: 3487 [2021-06-05 00:35:58,912 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 284.8ms TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:35:58,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3487 states. [2021-06-05 00:35:58,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3487 to 3205. [2021-06-05 00:35:58,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3204 states have (on average 2.6697877652933832) internal successors, (8554), 3204 states have internal predecessors, (8554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:58,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 8554 transitions. [2021-06-05 00:35:58,944 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 8554 transitions. Word has length 119 [2021-06-05 00:35:58,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:35:58,944 INFO L482 AbstractCegarLoop]: Abstraction has 3205 states and 8554 transitions. [2021-06-05 00:35:58,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:35:58,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 8554 transitions. [2021-06-05 00:35:58,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:35:58,947 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:35:58,947 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:35:58,947 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 00:35:58,947 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 00:35:58,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:35:58,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1551030297, now seen corresponding path program 2 times [2021-06-05 00:35:58,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:35:58,948 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665706075] [2021-06-05 00:35:58,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:35:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:35:59,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:35:59,573 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:35:59,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665706075] [2021-06-05 00:35:59,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665706075] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:35:59,573 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:35:59,573 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:35:59,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522805220] [2021-06-05 00:35:59,574 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:35:59,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:35:59,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:35:59,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:35:59,574 INFO L87 Difference]: Start difference. First operand 3205 states and 8554 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:00,757 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-06-05 00:36:02,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:02,569 INFO L93 Difference]: Finished difference Result 4951 states and 13018 transitions. [2021-06-05 00:36:02,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:36:02,569 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:02,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:02,573 INFO L225 Difference]: With dead ends: 4951 [2021-06-05 00:36:02,573 INFO L226 Difference]: Without dead ends: 4756 [2021-06-05 00:36:02,574 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 2458.9ms TimeCoverageRelationStatistics Valid=570, Invalid=2970, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:36:02,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4756 states. [2021-06-05 00:36:02,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4756 to 3769. [2021-06-05 00:36:02,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3769 states, 3768 states have (on average 2.6910828025477707) internal successors, (10140), 3768 states have internal predecessors, (10140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:02,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3769 states to 3769 states and 10140 transitions. [2021-06-05 00:36:02,617 INFO L78 Accepts]: Start accepts. Automaton has 3769 states and 10140 transitions. Word has length 119 [2021-06-05 00:36:02,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:02,617 INFO L482 AbstractCegarLoop]: Abstraction has 3769 states and 10140 transitions. [2021-06-05 00:36:02,617 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:02,617 INFO L276 IsEmpty]: Start isEmpty. Operand 3769 states and 10140 transitions. [2021-06-05 00:36:02,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:02,620 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:02,620 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:02,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 00:36:02,621 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 00:36:02,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:02,621 INFO L82 PathProgramCache]: Analyzing trace with hash -288666885, now seen corresponding path program 1 times [2021-06-05 00:36:02,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:02,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392611124] [2021-06-05 00:36:02,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:03,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:03,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:03,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392611124] [2021-06-05 00:36:03,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392611124] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:03,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:03,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-05 00:36:03,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209447318] [2021-06-05 00:36:03,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 00:36:03,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:03,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 00:36:03,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-06-05 00:36:03,100 INFO L87 Difference]: Start difference. First operand 3769 states and 10140 transitions. Second operand has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:04,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:04,460 INFO L93 Difference]: Finished difference Result 6279 states and 16943 transitions. [2021-06-05 00:36:04,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:36:04,460 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:04,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:04,466 INFO L225 Difference]: With dead ends: 6279 [2021-06-05 00:36:04,466 INFO L226 Difference]: Without dead ends: 6279 [2021-06-05 00:36:04,467 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1015.3ms TimeCoverageRelationStatistics Valid=457, Invalid=1523, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 00:36:04,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6279 states. [2021-06-05 00:36:04,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6279 to 6251. [2021-06-05 00:36:04,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6251 states, 6250 states have (on average 2.70224) internal successors, (16889), 6250 states have internal predecessors, (16889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:04,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6251 states to 6251 states and 16889 transitions. [2021-06-05 00:36:04,544 INFO L78 Accepts]: Start accepts. Automaton has 6251 states and 16889 transitions. Word has length 119 [2021-06-05 00:36:04,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:04,544 INFO L482 AbstractCegarLoop]: Abstraction has 6251 states and 16889 transitions. [2021-06-05 00:36:04,544 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:04,544 INFO L276 IsEmpty]: Start isEmpty. Operand 6251 states and 16889 transitions. [2021-06-05 00:36:04,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:04,550 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:04,550 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:04,550 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 00:36:04,550 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 00:36:04,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:04,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1953169949, now seen corresponding path program 3 times [2021-06-05 00:36:04,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:04,551 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975795560] [2021-06-05 00:36:04,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:05,193 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 00:36:05,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:05,194 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975795560] [2021-06-05 00:36:05,194 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975795560] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:05,194 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:05,194 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:36:05,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391317820] [2021-06-05 00:36:05,194 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:36:05,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:05,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:36:05,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:36:05,195 INFO L87 Difference]: Start difference. First operand 6251 states and 16889 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:06,280 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-06-05 00:36:06,504 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 00:36:08,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:08,374 INFO L93 Difference]: Finished difference Result 8779 states and 23303 transitions. [2021-06-05 00:36:08,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:36:08,375 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:08,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:08,383 INFO L225 Difference]: With dead ends: 8779 [2021-06-05 00:36:08,383 INFO L226 Difference]: Without dead ends: 8013 [2021-06-05 00:36:08,384 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 2641.4ms TimeCoverageRelationStatistics Valid=613, Invalid=2927, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:36:08,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8013 states. [2021-06-05 00:36:08,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8013 to 6371. [2021-06-05 00:36:08,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6371 states, 6370 states have (on average 2.685243328100471) internal successors, (17105), 6370 states have internal predecessors, (17105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:08,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6371 states to 6371 states and 17105 transitions. [2021-06-05 00:36:08,473 INFO L78 Accepts]: Start accepts. Automaton has 6371 states and 17105 transitions. Word has length 119 [2021-06-05 00:36:08,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:08,474 INFO L482 AbstractCegarLoop]: Abstraction has 6371 states and 17105 transitions. [2021-06-05 00:36:08,474 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:08,474 INFO L276 IsEmpty]: Start isEmpty. Operand 6371 states and 17105 transitions. [2021-06-05 00:36:08,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:08,479 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:08,479 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:08,480 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 00:36:08,480 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 00:36:08,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:08,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1133371983, now seen corresponding path program 4 times [2021-06-05 00:36:08,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:08,480 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842354973] [2021-06-05 00:36:08,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:09,132 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 00:36:09,132 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:09,132 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842354973] [2021-06-05 00:36:09,132 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842354973] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:09,132 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:09,132 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:36:09,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834340468] [2021-06-05 00:36:09,133 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:36:09,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:09,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:36:09,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:36:09,133 INFO L87 Difference]: Start difference. First operand 6371 states and 17105 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:10,357 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 00:36:12,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:12,205 INFO L93 Difference]: Finished difference Result 8204 states and 21680 transitions. [2021-06-05 00:36:12,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 00:36:12,206 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:12,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:12,212 INFO L225 Difference]: With dead ends: 8204 [2021-06-05 00:36:12,212 INFO L226 Difference]: Without dead ends: 7365 [2021-06-05 00:36:12,213 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 2664.1ms TimeCoverageRelationStatistics Valid=634, Invalid=3148, Unknown=0, NotChecked=0, Total=3782 [2021-06-05 00:36:12,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7365 states. [2021-06-05 00:36:12,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7365 to 5723. [2021-06-05 00:36:12,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5723 states, 5722 states have (on average 2.686648025166026) internal successors, (15373), 5722 states have internal predecessors, (15373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:12,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5723 states to 5723 states and 15373 transitions. [2021-06-05 00:36:12,284 INFO L78 Accepts]: Start accepts. Automaton has 5723 states and 15373 transitions. Word has length 119 [2021-06-05 00:36:12,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:12,285 INFO L482 AbstractCegarLoop]: Abstraction has 5723 states and 15373 transitions. [2021-06-05 00:36:12,285 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:12,285 INFO L276 IsEmpty]: Start isEmpty. Operand 5723 states and 15373 transitions. [2021-06-05 00:36:12,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:12,289 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:12,289 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:12,289 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 00:36:12,289 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 00:36:12,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:12,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1558365401, now seen corresponding path program 5 times [2021-06-05 00:36:12,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:12,290 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315294857] [2021-06-05 00:36:12,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:12,922 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:12,922 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315294857] [2021-06-05 00:36:12,922 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315294857] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:12,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:12,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:36:12,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008528101] [2021-06-05 00:36:12,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:36:12,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:12,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:36:12,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:36:12,930 INFO L87 Difference]: Start difference. First operand 5723 states and 15373 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:13,948 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2021-06-05 00:36:14,172 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-06-05 00:36:14,552 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-05 00:36:15,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:15,957 INFO L93 Difference]: Finished difference Result 6859 states and 18101 transitions. [2021-06-05 00:36:15,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:36:15,958 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:15,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:15,964 INFO L225 Difference]: With dead ends: 6859 [2021-06-05 00:36:15,964 INFO L226 Difference]: Without dead ends: 6532 [2021-06-05 00:36:15,965 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 2551.2ms TimeCoverageRelationStatistics Valid=623, Invalid=2917, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:36:15,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6532 states. [2021-06-05 00:36:16,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6532 to 5715. [2021-06-05 00:36:16,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5715 states, 5714 states have (on average 2.6862093104655234) internal successors, (15349), 5714 states have internal predecessors, (15349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:16,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5715 states to 5715 states and 15349 transitions. [2021-06-05 00:36:16,030 INFO L78 Accepts]: Start accepts. Automaton has 5715 states and 15349 transitions. Word has length 119 [2021-06-05 00:36:16,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:16,030 INFO L482 AbstractCegarLoop]: Abstraction has 5715 states and 15349 transitions. [2021-06-05 00:36:16,030 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:16,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5715 states and 15349 transitions. [2021-06-05 00:36:16,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:16,035 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:16,035 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:16,035 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 00:36:16,035 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 00:36:16,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:16,035 INFO L82 PathProgramCache]: Analyzing trace with hash -2032286581, now seen corresponding path program 6 times [2021-06-05 00:36:16,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:16,035 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785923961] [2021-06-05 00:36:16,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:16,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:16,708 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:16,708 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785923961] [2021-06-05 00:36:16,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785923961] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:16,708 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:16,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:36:16,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589228386] [2021-06-05 00:36:16,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:36:16,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:16,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:36:16,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:36:16,710 INFO L87 Difference]: Start difference. First operand 5715 states and 15349 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:18,114 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 00:36:18,280 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-05 00:36:19,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:19,704 INFO L93 Difference]: Finished difference Result 6577 states and 17301 transitions. [2021-06-05 00:36:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:36:19,704 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:19,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:19,710 INFO L225 Difference]: With dead ends: 6577 [2021-06-05 00:36:19,710 INFO L226 Difference]: Without dead ends: 6190 [2021-06-05 00:36:19,710 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 2506.3ms TimeCoverageRelationStatistics Valid=596, Invalid=2826, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:36:19,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2021-06-05 00:36:19,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 5707. [2021-06-05 00:36:19,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5707 states, 5706 states have (on average 2.6843673326323167) internal successors, (15317), 5706 states have internal predecessors, (15317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:19,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5707 states to 5707 states and 15317 transitions. [2021-06-05 00:36:19,773 INFO L78 Accepts]: Start accepts. Automaton has 5707 states and 15317 transitions. Word has length 119 [2021-06-05 00:36:19,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:19,773 INFO L482 AbstractCegarLoop]: Abstraction has 5707 states and 15317 transitions. [2021-06-05 00:36:19,773 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:19,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5707 states and 15317 transitions. [2021-06-05 00:36:19,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:19,777 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:19,777 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:19,778 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-05 00:36:19,778 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 00:36:19,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:19,778 INFO L82 PathProgramCache]: Analyzing trace with hash -865351205, now seen corresponding path program 7 times [2021-06-05 00:36:19,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:19,778 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644435648] [2021-06-05 00:36:19,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:20,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:20,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:20,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644435648] [2021-06-05 00:36:20,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644435648] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:20,408 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:20,408 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:36:20,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174455796] [2021-06-05 00:36:20,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:36:20,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:20,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:36:20,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:36:20,410 INFO L87 Difference]: Start difference. First operand 5707 states and 15317 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:21,597 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-06-05 00:36:23,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:23,641 INFO L93 Difference]: Finished difference Result 8739 states and 23005 transitions. [2021-06-05 00:36:23,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:36:23,642 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:23,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:23,650 INFO L225 Difference]: With dead ends: 8739 [2021-06-05 00:36:23,650 INFO L226 Difference]: Without dead ends: 8440 [2021-06-05 00:36:23,651 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 2643.1ms TimeCoverageRelationStatistics Valid=597, Invalid=3063, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 00:36:23,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8440 states. [2021-06-05 00:36:23,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8440 to 6343. [2021-06-05 00:36:23,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6343 states, 6342 states have (on average 2.6825922421948913) internal successors, (17013), 6342 states have internal predecessors, (17013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:23,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6343 states to 6343 states and 17013 transitions. [2021-06-05 00:36:23,745 INFO L78 Accepts]: Start accepts. Automaton has 6343 states and 17013 transitions. Word has length 119 [2021-06-05 00:36:23,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:23,745 INFO L482 AbstractCegarLoop]: Abstraction has 6343 states and 17013 transitions. [2021-06-05 00:36:23,745 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:23,745 INFO L276 IsEmpty]: Start isEmpty. Operand 6343 states and 17013 transitions. [2021-06-05 00:36:23,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:23,751 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:23,751 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:23,751 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-05 00:36:23,751 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 00:36:23,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:23,752 INFO L82 PathProgramCache]: Analyzing trace with hash -463211553, now seen corresponding path program 8 times [2021-06-05 00:36:23,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:23,752 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005751777] [2021-06-05 00:36:23,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:24,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:24,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:24,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005751777] [2021-06-05 00:36:24,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005751777] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:24,424 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:24,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:36:24,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564146494] [2021-06-05 00:36:24,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:36:24,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:24,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:36:24,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:36:24,425 INFO L87 Difference]: Start difference. First operand 6343 states and 17013 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:25,555 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 00:36:27,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:27,528 INFO L93 Difference]: Finished difference Result 9293 states and 24519 transitions. [2021-06-05 00:36:27,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:36:27,529 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:27,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:27,535 INFO L225 Difference]: With dead ends: 9293 [2021-06-05 00:36:27,535 INFO L226 Difference]: Without dead ends: 8527 [2021-06-05 00:36:27,536 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 2648.4ms TimeCoverageRelationStatistics Valid=642, Invalid=3018, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 00:36:27,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8527 states. [2021-06-05 00:36:27,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8527 to 6463. [2021-06-05 00:36:27,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6463 states, 6462 states have (on average 2.6662024141132776) internal successors, (17229), 6462 states have internal predecessors, (17229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:27,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6463 states to 6463 states and 17229 transitions. [2021-06-05 00:36:27,612 INFO L78 Accepts]: Start accepts. Automaton has 6463 states and 17229 transitions. Word has length 119 [2021-06-05 00:36:27,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:27,612 INFO L482 AbstractCegarLoop]: Abstraction has 6463 states and 17229 transitions. [2021-06-05 00:36:27,612 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:27,612 INFO L276 IsEmpty]: Start isEmpty. Operand 6463 states and 17229 transitions. [2021-06-05 00:36:27,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:27,617 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:27,617 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:27,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-05 00:36:27,618 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 00:36:27,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:27,618 INFO L82 PathProgramCache]: Analyzing trace with hash 745213811, now seen corresponding path program 9 times [2021-06-05 00:36:27,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:27,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270878917] [2021-06-05 00:36:27,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:28,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:28,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:28,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270878917] [2021-06-05 00:36:28,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270878917] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:28,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:28,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:36:28,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621239699] [2021-06-05 00:36:28,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:36:28,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:28,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:36:28,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:36:28,236 INFO L87 Difference]: Start difference. First operand 6463 states and 17229 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:29,408 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 00:36:31,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:31,493 INFO L93 Difference]: Finished difference Result 8718 states and 22896 transitions. [2021-06-05 00:36:31,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 00:36:31,494 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:31,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:31,499 INFO L225 Difference]: With dead ends: 8718 [2021-06-05 00:36:31,499 INFO L226 Difference]: Without dead ends: 7879 [2021-06-05 00:36:31,500 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 2759.7ms TimeCoverageRelationStatistics Valid=665, Invalid=3241, Unknown=0, NotChecked=0, Total=3906 [2021-06-05 00:36:31,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7879 states. [2021-06-05 00:36:31,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7879 to 5815. [2021-06-05 00:36:31,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5815 states, 5814 states have (on average 2.66546267629859) internal successors, (15497), 5814 states have internal predecessors, (15497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:31,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5815 states to 5815 states and 15497 transitions. [2021-06-05 00:36:31,565 INFO L78 Accepts]: Start accepts. Automaton has 5815 states and 15497 transitions. Word has length 119 [2021-06-05 00:36:31,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:31,565 INFO L482 AbstractCegarLoop]: Abstraction has 5815 states and 15497 transitions. [2021-06-05 00:36:31,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:31,566 INFO L276 IsEmpty]: Start isEmpty. Operand 5815 states and 15497 transitions. [2021-06-05 00:36:31,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:31,569 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:31,570 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:31,570 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-05 00:36:31,570 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 00:36:31,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:31,570 INFO L82 PathProgramCache]: Analyzing trace with hash -858016101, now seen corresponding path program 10 times [2021-06-05 00:36:31,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:31,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511922636] [2021-06-05 00:36:31,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:32,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:32,171 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:32,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511922636] [2021-06-05 00:36:32,171 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511922636] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:32,171 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:32,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:36:32,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647848119] [2021-06-05 00:36:32,171 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:36:32,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:32,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:36:32,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:36:32,172 INFO L87 Difference]: Start difference. First operand 5815 states and 15497 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:33,389 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-06-05 00:36:33,922 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-05 00:36:35,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:35,426 INFO L93 Difference]: Finished difference Result 7345 states and 19235 transitions. [2021-06-05 00:36:35,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:36:35,426 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:35,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:35,432 INFO L225 Difference]: With dead ends: 7345 [2021-06-05 00:36:35,432 INFO L226 Difference]: Without dead ends: 7018 [2021-06-05 00:36:35,433 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 2642.0ms TimeCoverageRelationStatistics Valid=653, Invalid=3007, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 00:36:35,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7018 states. [2021-06-05 00:36:35,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7018 to 5695. [2021-06-05 00:36:35,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5695 states, 5694 states have (on average 2.6794871794871793) internal successors, (15257), 5694 states have internal predecessors, (15257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:35,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5695 states to 5695 states and 15257 transitions. [2021-06-05 00:36:35,502 INFO L78 Accepts]: Start accepts. Automaton has 5695 states and 15257 transitions. Word has length 119 [2021-06-05 00:36:35,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:35,502 INFO L482 AbstractCegarLoop]: Abstraction has 5695 states and 15257 transitions. [2021-06-05 00:36:35,502 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:35,503 INFO L276 IsEmpty]: Start isEmpty. Operand 5695 states and 15257 transitions. [2021-06-05 00:36:35,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:35,507 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:35,508 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:35,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-05 00:36:35,508 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 00:36:35,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:35,508 INFO L82 PathProgramCache]: Analyzing trace with hash -760437769, now seen corresponding path program 11 times [2021-06-05 00:36:35,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:35,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355982559] [2021-06-05 00:36:35,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:36,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:36,146 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:36,146 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355982559] [2021-06-05 00:36:36,147 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355982559] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:36,147 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:36,147 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:36:36,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473946898] [2021-06-05 00:36:36,147 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:36:36,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:36,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:36:36,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:36:36,148 INFO L87 Difference]: Start difference. First operand 5695 states and 15257 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:37,041 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 58 [2021-06-05 00:36:39,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:39,103 INFO L93 Difference]: Finished difference Result 8203 states and 21601 transitions. [2021-06-05 00:36:39,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:36:39,103 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:39,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:39,110 INFO L225 Difference]: With dead ends: 8203 [2021-06-05 00:36:39,110 INFO L226 Difference]: Without dead ends: 7904 [2021-06-05 00:36:39,110 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 2423.8ms TimeCoverageRelationStatistics Valid=543, Invalid=2763, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:36:39,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7904 states. [2021-06-05 00:36:39,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7904 to 6271. [2021-06-05 00:36:39,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6271 states, 6270 states have (on average 2.6751196172248806) internal successors, (16773), 6270 states have internal predecessors, (16773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6271 states to 6271 states and 16773 transitions. [2021-06-05 00:36:39,186 INFO L78 Accepts]: Start accepts. Automaton has 6271 states and 16773 transitions. Word has length 119 [2021-06-05 00:36:39,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:39,186 INFO L482 AbstractCegarLoop]: Abstraction has 6271 states and 16773 transitions. [2021-06-05 00:36:39,187 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:39,187 INFO L276 IsEmpty]: Start isEmpty. Operand 6271 states and 16773 transitions. [2021-06-05 00:36:39,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:39,192 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:39,192 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:39,192 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-05 00:36:39,192 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 00:36:39,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:39,192 INFO L82 PathProgramCache]: Analyzing trace with hash -358298117, now seen corresponding path program 12 times [2021-06-05 00:36:39,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:39,192 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653349133] [2021-06-05 00:36:39,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:39,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:39,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:39,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653349133] [2021-06-05 00:36:39,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653349133] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:39,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:39,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:36:39,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354755501] [2021-06-05 00:36:39,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:36:39,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:39,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:36:39,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:36:39,795 INFO L87 Difference]: Start difference. First operand 6271 states and 16773 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:42,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:42,809 INFO L93 Difference]: Finished difference Result 8784 states and 23053 transitions. [2021-06-05 00:36:42,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:36:42,810 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:42,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:42,817 INFO L225 Difference]: With dead ends: 8784 [2021-06-05 00:36:42,817 INFO L226 Difference]: Without dead ends: 8018 [2021-06-05 00:36:42,817 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 2555.7ms TimeCoverageRelationStatistics Valid=622, Invalid=3038, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 00:36:42,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8018 states. [2021-06-05 00:36:42,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8018 to 6391. [2021-06-05 00:36:42,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6391 states, 6390 states have (on average 2.6586854460093896) internal successors, (16989), 6390 states have internal predecessors, (16989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:42,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6391 states to 6391 states and 16989 transitions. [2021-06-05 00:36:42,903 INFO L78 Accepts]: Start accepts. Automaton has 6391 states and 16989 transitions. Word has length 119 [2021-06-05 00:36:42,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:42,904 INFO L482 AbstractCegarLoop]: Abstraction has 6391 states and 16989 transitions. [2021-06-05 00:36:42,904 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:42,904 INFO L276 IsEmpty]: Start isEmpty. Operand 6391 states and 16989 transitions. [2021-06-05 00:36:42,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:42,909 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:42,909 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:42,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-05 00:36:42,910 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 00:36:42,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:42,910 INFO L82 PathProgramCache]: Analyzing trace with hash 850127247, now seen corresponding path program 13 times [2021-06-05 00:36:42,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:42,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094617392] [2021-06-05 00:36:42,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:43,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:43,568 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:43,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094617392] [2021-06-05 00:36:43,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094617392] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:43,568 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:43,568 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:36:43,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579137042] [2021-06-05 00:36:43,569 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:36:43,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:43,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:36:43,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:36:43,569 INFO L87 Difference]: Start difference. First operand 6391 states and 16989 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:44,645 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2021-06-05 00:36:46,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:46,962 INFO L93 Difference]: Finished difference Result 8209 states and 21430 transitions. [2021-06-05 00:36:46,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 00:36:46,962 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:46,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:46,969 INFO L225 Difference]: With dead ends: 8209 [2021-06-05 00:36:46,970 INFO L226 Difference]: Without dead ends: 7370 [2021-06-05 00:36:46,970 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 2904.1ms TimeCoverageRelationStatistics Valid=648, Invalid=3258, Unknown=0, NotChecked=0, Total=3906 [2021-06-05 00:36:46,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7370 states. [2021-06-05 00:36:47,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7370 to 5743. [2021-06-05 00:36:47,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5743 states, 5742 states have (on average 2.648728665970045) internal successors, (15209), 5742 states have internal predecessors, (15209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:47,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5743 states to 5743 states and 15209 transitions. [2021-06-05 00:36:47,046 INFO L78 Accepts]: Start accepts. Automaton has 5743 states and 15209 transitions. Word has length 119 [2021-06-05 00:36:47,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:47,046 INFO L482 AbstractCegarLoop]: Abstraction has 5743 states and 15209 transitions. [2021-06-05 00:36:47,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:47,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5743 states and 15209 transitions. [2021-06-05 00:36:47,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:47,051 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:47,051 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:47,051 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-05 00:36:47,051 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 00:36:47,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:47,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1226196881, now seen corresponding path program 14 times [2021-06-05 00:36:47,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:47,052 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652074884] [2021-06-05 00:36:47,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:47,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:47,661 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:47,661 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652074884] [2021-06-05 00:36:47,661 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652074884] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:47,661 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:47,661 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:36:47,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686947640] [2021-06-05 00:36:47,661 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:36:47,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:47,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:36:47,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:36:47,662 INFO L87 Difference]: Start difference. First operand 5743 states and 15209 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:50,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:50,782 INFO L93 Difference]: Finished difference Result 7643 states and 19796 transitions. [2021-06-05 00:36:50,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:36:50,782 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:50,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:50,789 INFO L225 Difference]: With dead ends: 7643 [2021-06-05 00:36:50,789 INFO L226 Difference]: Without dead ends: 7143 [2021-06-05 00:36:50,790 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 2590.1ms TimeCoverageRelationStatistics Valid=589, Invalid=3071, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 00:36:50,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7143 states. [2021-06-05 00:36:50,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7143 to 5575. [2021-06-05 00:36:50,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5575 states, 5574 states have (on average 2.6639756010046645) internal successors, (14849), 5574 states have internal predecessors, (14849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:50,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5575 states to 5575 states and 14849 transitions. [2021-06-05 00:36:50,867 INFO L78 Accepts]: Start accepts. Automaton has 5575 states and 14849 transitions. Word has length 119 [2021-06-05 00:36:50,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:50,867 INFO L482 AbstractCegarLoop]: Abstraction has 5575 states and 14849 transitions. [2021-06-05 00:36:50,867 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:50,867 INFO L276 IsEmpty]: Start isEmpty. Operand 5575 states and 14849 transitions. [2021-06-05 00:36:50,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:50,872 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:50,872 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:50,872 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-05 00:36:50,872 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 00:36:50,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:50,873 INFO L82 PathProgramCache]: Analyzing trace with hash -2107003891, now seen corresponding path program 15 times [2021-06-05 00:36:50,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:50,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210558248] [2021-06-05 00:36:50,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:51,550 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 00:36:51,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:51,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210558248] [2021-06-05 00:36:51,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210558248] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:51,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:51,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:36:51,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696640898] [2021-06-05 00:36:51,551 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:36:51,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:51,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:36:51,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:36:51,551 INFO L87 Difference]: Start difference. First operand 5575 states and 14849 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:53,094 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-05 00:36:54,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:54,709 INFO L93 Difference]: Finished difference Result 6701 states and 17443 transitions. [2021-06-05 00:36:54,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:36:54,709 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:54,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:54,716 INFO L225 Difference]: With dead ends: 6701 [2021-06-05 00:36:54,716 INFO L226 Difference]: Without dead ends: 6398 [2021-06-05 00:36:54,717 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 2699.4ms TimeCoverageRelationStatistics Valid=653, Invalid=3007, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 00:36:54,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6398 states. [2021-06-05 00:36:54,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6398 to 5583. [2021-06-05 00:36:54,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5583 states, 5582 states have (on average 2.663024005732712) internal successors, (14865), 5582 states have internal predecessors, (14865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:54,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 14865 transitions. [2021-06-05 00:36:54,795 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 14865 transitions. Word has length 119 [2021-06-05 00:36:54,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:54,795 INFO L482 AbstractCegarLoop]: Abstraction has 5583 states and 14865 transitions. [2021-06-05 00:36:54,795 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:54,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 14865 transitions. [2021-06-05 00:36:54,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:54,799 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:54,800 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:54,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-05 00:36:54,800 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 00:36:54,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:54,800 INFO L82 PathProgramCache]: Analyzing trace with hash 44071913, now seen corresponding path program 16 times [2021-06-05 00:36:54,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:54,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635828766] [2021-06-05 00:36:54,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:55,471 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 00:36:55,472 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:55,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635828766] [2021-06-05 00:36:55,472 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635828766] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:55,472 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:55,472 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:36:55,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699105983] [2021-06-05 00:36:55,472 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:36:55,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:55,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:36:55,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:36:55,473 INFO L87 Difference]: Start difference. First operand 5583 states and 14865 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:56,895 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-06-05 00:36:58,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:36:58,620 INFO L93 Difference]: Finished difference Result 6628 states and 17272 transitions. [2021-06-05 00:36:58,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:36:58,621 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:36:58,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:36:58,627 INFO L225 Difference]: With dead ends: 6628 [2021-06-05 00:36:58,627 INFO L226 Difference]: Without dead ends: 6268 [2021-06-05 00:36:58,628 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 2706.8ms TimeCoverageRelationStatistics Valid=635, Invalid=3025, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 00:36:58,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6268 states. [2021-06-05 00:36:58,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6268 to 5555. [2021-06-05 00:36:58,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5555 states, 5554 states have (on average 2.6660064818149083) internal successors, (14807), 5554 states have internal predecessors, (14807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:58,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5555 states to 5555 states and 14807 transitions. [2021-06-05 00:36:58,699 INFO L78 Accepts]: Start accepts. Automaton has 5555 states and 14807 transitions. Word has length 119 [2021-06-05 00:36:58,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:36:58,699 INFO L482 AbstractCegarLoop]: Abstraction has 5555 states and 14807 transitions. [2021-06-05 00:36:58,699 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:36:58,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5555 states and 14807 transitions. [2021-06-05 00:36:58,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:36:58,703 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:36:58,703 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:36:58,703 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-05 00:36:58,703 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 00:36:58,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:36:58,703 INFO L82 PathProgramCache]: Analyzing trace with hash -2096202407, now seen corresponding path program 17 times [2021-06-05 00:36:58,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:36:58,703 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36357346] [2021-06-05 00:36:58,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:36:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:36:59,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:36:59,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:36:59,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36357346] [2021-06-05 00:36:59,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36357346] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:36:59,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:36:59,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:36:59,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910414286] [2021-06-05 00:36:59,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:36:59,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:36:59,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:36:59,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:36:59,347 INFO L87 Difference]: Start difference. First operand 5555 states and 14807 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:00,662 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 00:37:00,869 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-05 00:37:02,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:02,282 INFO L93 Difference]: Finished difference Result 6333 states and 16469 transitions. [2021-06-05 00:37:02,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:37:02,282 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:02,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:02,288 INFO L225 Difference]: With dead ends: 6333 [2021-06-05 00:37:02,288 INFO L226 Difference]: Without dead ends: 6018 [2021-06-05 00:37:02,288 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 2416.5ms TimeCoverageRelationStatistics Valid=596, Invalid=2826, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:37:02,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-06-05 00:37:02,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 5583. [2021-06-05 00:37:02,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5583 states, 5582 states have (on average 2.663024005732712) internal successors, (14865), 5582 states have internal predecessors, (14865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:02,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 14865 transitions. [2021-06-05 00:37:02,367 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 14865 transitions. Word has length 119 [2021-06-05 00:37:02,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:02,367 INFO L482 AbstractCegarLoop]: Abstraction has 5583 states and 14865 transitions. [2021-06-05 00:37:02,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:02,367 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 14865 transitions. [2021-06-05 00:37:02,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:02,371 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:02,372 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:02,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-05 00:37:02,372 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 00:37:02,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:02,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1576841637, now seen corresponding path program 18 times [2021-06-05 00:37:02,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:02,372 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266160231] [2021-06-05 00:37:02,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:03,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:03,038 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:03,038 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266160231] [2021-06-05 00:37:03,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266160231] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:03,038 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:03,038 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:03,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495819882] [2021-06-05 00:37:03,038 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:03,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:03,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:03,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:03,039 INFO L87 Difference]: Start difference. First operand 5583 states and 14865 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:04,412 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-05 00:37:05,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:05,993 INFO L93 Difference]: Finished difference Result 6311 states and 16401 transitions. [2021-06-05 00:37:05,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:37:05,994 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:05,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:05,999 INFO L225 Difference]: With dead ends: 6311 [2021-06-05 00:37:05,999 INFO L226 Difference]: Without dead ends: 6008 [2021-06-05 00:37:06,000 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 2626.7ms TimeCoverageRelationStatistics Valid=623, Invalid=2917, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:37:06,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2021-06-05 00:37:06,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 5591. [2021-06-05 00:37:06,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5591 states, 5590 states have (on average 2.662075134168157) internal successors, (14881), 5590 states have internal predecessors, (14881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:06,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 14881 transitions. [2021-06-05 00:37:06,063 INFO L78 Accepts]: Start accepts. Automaton has 5591 states and 14881 transitions. Word has length 119 [2021-06-05 00:37:06,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:06,063 INFO L482 AbstractCegarLoop]: Abstraction has 5591 states and 14881 transitions. [2021-06-05 00:37:06,063 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:06,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5591 states and 14881 transitions. [2021-06-05 00:37:06,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:06,068 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:06,069 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:06,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-05 00:37:06,069 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 00:37:06,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:06,069 INFO L82 PathProgramCache]: Analyzing trace with hash 403010167, now seen corresponding path program 19 times [2021-06-05 00:37:06,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:06,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959455045] [2021-06-05 00:37:06,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:06,722 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 00:37:06,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:06,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959455045] [2021-06-05 00:37:06,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959455045] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:06,722 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:06,722 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:06,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524921399] [2021-06-05 00:37:06,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:06,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:06,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:06,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:06,723 INFO L87 Difference]: Start difference. First operand 5591 states and 14881 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:09,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:09,773 INFO L93 Difference]: Finished difference Result 6234 states and 16220 transitions. [2021-06-05 00:37:09,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:37:09,774 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:09,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:09,778 INFO L225 Difference]: With dead ends: 6234 [2021-06-05 00:37:09,778 INFO L226 Difference]: Without dead ends: 5814 [2021-06-05 00:37:09,778 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 2571.2ms TimeCoverageRelationStatistics Valid=606, Invalid=2934, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:37:09,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5814 states. [2021-06-05 00:37:09,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5814 to 5499. [2021-06-05 00:37:09,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 2.6655147326300472) internal successors, (14655), 5498 states have internal predecessors, (14655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 14655 transitions. [2021-06-05 00:37:09,836 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 14655 transitions. Word has length 119 [2021-06-05 00:37:09,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:09,836 INFO L482 AbstractCegarLoop]: Abstraction has 5499 states and 14655 transitions. [2021-06-05 00:37:09,836 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:09,836 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 14655 transitions. [2021-06-05 00:37:09,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:09,840 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:09,840 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:09,840 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-05 00:37:09,840 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 00:37:09,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:09,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1688070599, now seen corresponding path program 20 times [2021-06-05 00:37:09,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:09,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915410892] [2021-06-05 00:37:09,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:10,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:10,458 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:10,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915410892] [2021-06-05 00:37:10,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915410892] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:10,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:10,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:10,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443443662] [2021-06-05 00:37:10,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:10,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:10,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:10,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:10,460 INFO L87 Difference]: Start difference. First operand 5499 states and 14655 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:11,693 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-06-05 00:37:13,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:13,252 INFO L93 Difference]: Finished difference Result 6628 states and 17443 transitions. [2021-06-05 00:37:13,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:37:13,256 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:13,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:13,262 INFO L225 Difference]: With dead ends: 6628 [2021-06-05 00:37:13,262 INFO L226 Difference]: Without dead ends: 6419 [2021-06-05 00:37:13,262 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2309.3ms TimeCoverageRelationStatistics Valid=506, Invalid=2574, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:37:13,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6419 states. [2021-06-05 00:37:13,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6419 to 5835. [2021-06-05 00:37:13,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5835 states, 5834 states have (on average 2.655296537538567) internal successors, (15491), 5834 states have internal predecessors, (15491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:13,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 15491 transitions. [2021-06-05 00:37:13,334 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 15491 transitions. Word has length 119 [2021-06-05 00:37:13,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:13,334 INFO L482 AbstractCegarLoop]: Abstraction has 5835 states and 15491 transitions. [2021-06-05 00:37:13,334 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:13,334 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 15491 transitions. [2021-06-05 00:37:13,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:13,340 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:13,340 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:13,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-06-05 00:37:13,340 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 00:37:13,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:13,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1285930947, now seen corresponding path program 21 times [2021-06-05 00:37:13,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:13,340 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256552519] [2021-06-05 00:37:13,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:13,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:13,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:13,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256552519] [2021-06-05 00:37:13,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256552519] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:13,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:13,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:13,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406915766] [2021-06-05 00:37:13,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:13,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:13,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:13,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:13,956 INFO L87 Difference]: Start difference. First operand 5835 states and 15491 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:15,152 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-06-05 00:37:16,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:16,620 INFO L93 Difference]: Finished difference Result 6975 states and 18261 transitions. [2021-06-05 00:37:16,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:37:16,621 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:16,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:16,625 INFO L225 Difference]: With dead ends: 6975 [2021-06-05 00:37:16,625 INFO L226 Difference]: Without dead ends: 6499 [2021-06-05 00:37:16,626 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2323.9ms TimeCoverageRelationStatistics Valid=535, Invalid=2657, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:37:16,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6499 states. [2021-06-05 00:37:16,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6499 to 5907. [2021-06-05 00:37:16,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5907 states, 5906 states have (on average 2.643244158482899) internal successors, (15611), 5906 states have internal predecessors, (15611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:16,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 15611 transitions. [2021-06-05 00:37:16,691 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 15611 transitions. Word has length 119 [2021-06-05 00:37:16,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:16,691 INFO L482 AbstractCegarLoop]: Abstraction has 5907 states and 15611 transitions. [2021-06-05 00:37:16,691 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:16,691 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 15611 transitions. [2021-06-05 00:37:16,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:16,696 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:16,696 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:16,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-06-05 00:37:16,696 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 00:37:16,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:16,697 INFO L82 PathProgramCache]: Analyzing trace with hash -77505583, now seen corresponding path program 22 times [2021-06-05 00:37:16,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:16,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636399508] [2021-06-05 00:37:16,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:17,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:17,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:17,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636399508] [2021-06-05 00:37:17,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636399508] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:17,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:17,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:17,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971344503] [2021-06-05 00:37:17,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:17,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:17,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:17,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:17,321 INFO L87 Difference]: Start difference. First operand 5907 states and 15611 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:18,504 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-06-05 00:37:20,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:20,033 INFO L93 Difference]: Finished difference Result 6632 states and 17338 transitions. [2021-06-05 00:37:20,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:37:20,034 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:20,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:20,038 INFO L225 Difference]: With dead ends: 6632 [2021-06-05 00:37:20,038 INFO L226 Difference]: Without dead ends: 6091 [2021-06-05 00:37:20,039 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 2389.4ms TimeCoverageRelationStatistics Valid=537, Invalid=2769, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:37:20,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6091 states. [2021-06-05 00:37:20,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6091 to 5499. [2021-06-05 00:37:20,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 2.661149508912332) internal successors, (14631), 5498 states have internal predecessors, (14631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:20,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 14631 transitions. [2021-06-05 00:37:20,100 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 14631 transitions. Word has length 119 [2021-06-05 00:37:20,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:20,100 INFO L482 AbstractCegarLoop]: Abstraction has 5499 states and 14631 transitions. [2021-06-05 00:37:20,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:20,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 14631 transitions. [2021-06-05 00:37:20,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:20,105 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:20,105 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:20,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-05 00:37:20,105 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 00:37:20,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:20,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1680735495, now seen corresponding path program 23 times [2021-06-05 00:37:20,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:20,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126572876] [2021-06-05 00:37:20,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:20,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:20,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:20,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126572876] [2021-06-05 00:37:20,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126572876] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:20,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:20,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:20,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602441835] [2021-06-05 00:37:20,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:20,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:20,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:20,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:20,720 INFO L87 Difference]: Start difference. First operand 5499 states and 14631 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:21,931 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-06-05 00:37:22,405 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-05 00:37:23,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:23,397 INFO L93 Difference]: Finished difference Result 6138 states and 16176 transitions. [2021-06-05 00:37:23,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:37:23,397 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:23,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:23,401 INFO L225 Difference]: With dead ends: 6138 [2021-06-05 00:37:23,401 INFO L226 Difference]: Without dead ends: 5901 [2021-06-05 00:37:23,402 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2370.4ms TimeCoverageRelationStatistics Valid=523, Invalid=2557, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:37:23,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5901 states. [2021-06-05 00:37:23,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5901 to 5475. [2021-06-05 00:37:23,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.664048227986847) internal successors, (14583), 5474 states have internal predecessors, (14583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:23,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14583 transitions. [2021-06-05 00:37:23,461 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14583 transitions. Word has length 119 [2021-06-05 00:37:23,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:23,461 INFO L482 AbstractCegarLoop]: Abstraction has 5475 states and 14583 transitions. [2021-06-05 00:37:23,461 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:23,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14583 transitions. [2021-06-05 00:37:23,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:23,466 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:23,466 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:23,466 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-06-05 00:37:23,466 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 00:37:23,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:23,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1583157163, now seen corresponding path program 24 times [2021-06-05 00:37:23,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:23,467 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511070387] [2021-06-05 00:37:23,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:24,072 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 00:37:24,072 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:24,072 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511070387] [2021-06-05 00:37:24,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511070387] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:24,073 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:24,073 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:24,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936162385] [2021-06-05 00:37:24,074 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:24,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:24,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:24,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:24,074 INFO L87 Difference]: Start difference. First operand 5475 states and 14583 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:26,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:26,793 INFO L93 Difference]: Finished difference Result 6818 states and 17919 transitions. [2021-06-05 00:37:26,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:37:26,793 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:26,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:26,798 INFO L225 Difference]: With dead ends: 6818 [2021-06-05 00:37:26,798 INFO L226 Difference]: Without dead ends: 6609 [2021-06-05 00:37:26,798 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 2315.8ms TimeCoverageRelationStatistics Valid=495, Invalid=2585, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:37:26,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6609 states. [2021-06-05 00:37:26,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6609 to 5931. [2021-06-05 00:37:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5931 states, 5930 states have (on average 2.6568296795952784) internal successors, (15755), 5930 states have internal predecessors, (15755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:26,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5931 states to 5931 states and 15755 transitions. [2021-06-05 00:37:26,864 INFO L78 Accepts]: Start accepts. Automaton has 5931 states and 15755 transitions. Word has length 119 [2021-06-05 00:37:26,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:26,865 INFO L482 AbstractCegarLoop]: Abstraction has 5931 states and 15755 transitions. [2021-06-05 00:37:26,865 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:26,865 INFO L276 IsEmpty]: Start isEmpty. Operand 5931 states and 15755 transitions. [2021-06-05 00:37:26,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:26,870 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:26,870 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:26,870 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-06-05 00:37:26,870 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 00:37:26,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:26,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1181017511, now seen corresponding path program 25 times [2021-06-05 00:37:26,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:26,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639014915] [2021-06-05 00:37:26,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:27,486 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 00:37:27,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:27,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639014915] [2021-06-05 00:37:27,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639014915] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:27,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:27,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:27,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810616769] [2021-06-05 00:37:27,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:27,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:27,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:27,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:27,488 INFO L87 Difference]: Start difference. First operand 5931 states and 15755 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:28,952 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2021-06-05 00:37:30,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:30,324 INFO L93 Difference]: Finished difference Result 7165 states and 18737 transitions. [2021-06-05 00:37:30,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:37:30,324 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:30,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:30,329 INFO L225 Difference]: With dead ends: 7165 [2021-06-05 00:37:30,329 INFO L226 Difference]: Without dead ends: 6689 [2021-06-05 00:37:30,329 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 2331.7ms TimeCoverageRelationStatistics Valid=521, Invalid=2671, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:37:30,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6689 states. [2021-06-05 00:37:30,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6689 to 6003. [2021-06-05 00:37:30,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6003 states, 6002 states have (on average 2.644951682772409) internal successors, (15875), 6002 states have internal predecessors, (15875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:30,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6003 states to 6003 states and 15875 transitions. [2021-06-05 00:37:30,394 INFO L78 Accepts]: Start accepts. Automaton has 6003 states and 15875 transitions. Word has length 119 [2021-06-05 00:37:30,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:30,394 INFO L482 AbstractCegarLoop]: Abstraction has 6003 states and 15875 transitions. [2021-06-05 00:37:30,395 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:30,395 INFO L276 IsEmpty]: Start isEmpty. Operand 6003 states and 15875 transitions. [2021-06-05 00:37:30,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:30,400 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:30,400 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:30,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-06-05 00:37:30,400 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 00:37:30,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:30,401 INFO L82 PathProgramCache]: Analyzing trace with hash 27407853, now seen corresponding path program 26 times [2021-06-05 00:37:30,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:30,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118958507] [2021-06-05 00:37:30,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:30,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:30,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:30,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118958507] [2021-06-05 00:37:30,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118958507] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:30,997 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:30,997 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:30,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587550347] [2021-06-05 00:37:31,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:31,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:31,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:31,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:31,002 INFO L87 Difference]: Start difference. First operand 6003 states and 15875 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:33,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:33,649 INFO L93 Difference]: Finished difference Result 6822 states and 17814 transitions. [2021-06-05 00:37:33,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:37:33,650 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:33,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:33,656 INFO L225 Difference]: With dead ends: 6822 [2021-06-05 00:37:33,656 INFO L226 Difference]: Without dead ends: 6281 [2021-06-05 00:37:33,656 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 2168.9ms TimeCoverageRelationStatistics Valid=528, Invalid=2778, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:37:33,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6281 states. [2021-06-05 00:37:33,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 5595. [2021-06-05 00:37:33,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5595 states, 5594 states have (on average 2.645513049696103) internal successors, (14799), 5594 states have internal predecessors, (14799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:33,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 14799 transitions. [2021-06-05 00:37:33,738 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 14799 transitions. Word has length 119 [2021-06-05 00:37:33,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:33,738 INFO L482 AbstractCegarLoop]: Abstraction has 5595 states and 14799 transitions. [2021-06-05 00:37:33,738 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:33,738 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 14799 transitions. [2021-06-05 00:37:33,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:33,742 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:33,743 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:33,743 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-06-05 00:37:33,743 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 00:37:33,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:33,743 INFO L82 PathProgramCache]: Analyzing trace with hash -2048916275, now seen corresponding path program 27 times [2021-06-05 00:37:33,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:33,743 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11725155] [2021-06-05 00:37:33,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:34,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:34,345 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:34,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11725155] [2021-06-05 00:37:34,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11725155] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:34,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:34,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:34,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938142112] [2021-06-05 00:37:34,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:34,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:34,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:34,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:34,346 INFO L87 Difference]: Start difference. First operand 5595 states and 14799 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:37,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:37,050 INFO L93 Difference]: Finished difference Result 6345 states and 16601 transitions. [2021-06-05 00:37:37,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:37:37,050 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:37,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:37,056 INFO L225 Difference]: With dead ends: 6345 [2021-06-05 00:37:37,056 INFO L226 Difference]: Without dead ends: 5991 [2021-06-05 00:37:37,057 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 2231.3ms TimeCoverageRelationStatistics Valid=495, Invalid=2585, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:37:37,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2021-06-05 00:37:37,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 5475. [2021-06-05 00:37:37,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6596638655462184) internal successors, (14559), 5474 states have internal predecessors, (14559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:37,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14559 transitions. [2021-06-05 00:37:37,149 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14559 transitions. Word has length 119 [2021-06-05 00:37:37,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:37,149 INFO L482 AbstractCegarLoop]: Abstraction has 5475 states and 14559 transitions. [2021-06-05 00:37:37,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:37,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14559 transitions. [2021-06-05 00:37:37,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:37,154 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:37,154 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:37,154 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-06-05 00:37:37,154 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 00:37:37,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:37,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1365244011, now seen corresponding path program 28 times [2021-06-05 00:37:37,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:37,155 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922773878] [2021-06-05 00:37:37,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:37,749 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 00:37:37,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:37,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922773878] [2021-06-05 00:37:37,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922773878] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:37,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:37,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:37,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675477569] [2021-06-05 00:37:37,750 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:37,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:37,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:37,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:37,750 INFO L87 Difference]: Start difference. First operand 5475 states and 14559 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:39,329 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-05 00:37:40,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:40,433 INFO L93 Difference]: Finished difference Result 6126 states and 16130 transitions. [2021-06-05 00:37:40,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:37:40,433 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:40,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:40,439 INFO L225 Difference]: With dead ends: 6126 [2021-06-05 00:37:40,439 INFO L226 Difference]: Without dead ends: 5913 [2021-06-05 00:37:40,439 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2293.1ms TimeCoverageRelationStatistics Valid=523, Invalid=2557, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:37:40,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5913 states. [2021-06-05 00:37:40,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5913 to 5479. [2021-06-05 00:37:40,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6588170865279297) internal successors, (14565), 5478 states have internal predecessors, (14565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:40,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14565 transitions. [2021-06-05 00:37:40,501 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14565 transitions. Word has length 119 [2021-06-05 00:37:40,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:40,501 INFO L482 AbstractCegarLoop]: Abstraction has 5479 states and 14565 transitions. [2021-06-05 00:37:40,501 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:40,501 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14565 transitions. [2021-06-05 00:37:40,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:40,527 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:40,527 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:40,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-06-05 00:37:40,527 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 00:37:40,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:40,528 INFO L82 PathProgramCache]: Analyzing trace with hash -778647481, now seen corresponding path program 29 times [2021-06-05 00:37:40,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:40,528 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075850998] [2021-06-05 00:37:40,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:41,179 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 00:37:41,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:41,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075850998] [2021-06-05 00:37:41,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075850998] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:41,179 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:41,179 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:41,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504711852] [2021-06-05 00:37:41,179 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:41,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:41,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:41,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:41,180 INFO L87 Difference]: Start difference. First operand 5479 states and 14565 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:43,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:43,893 INFO L93 Difference]: Finished difference Result 6143 states and 16171 transitions. [2021-06-05 00:37:43,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:37:43,894 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:43,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:43,899 INFO L225 Difference]: With dead ends: 6143 [2021-06-05 00:37:43,899 INFO L226 Difference]: Without dead ends: 5881 [2021-06-05 00:37:43,900 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2338.1ms TimeCoverageRelationStatistics Valid=506, Invalid=2574, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:37:43,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5881 states. [2021-06-05 00:37:43,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5881 to 5451. [2021-06-05 00:37:43,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6625688073394493) internal successors, (14511), 5450 states have internal predecessors, (14511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:43,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14511 transitions. [2021-06-05 00:37:43,961 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14511 transitions. Word has length 119 [2021-06-05 00:37:43,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:43,961 INFO L482 AbstractCegarLoop]: Abstraction has 5451 states and 14511 transitions. [2021-06-05 00:37:43,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:43,961 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14511 transitions. [2021-06-05 00:37:43,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:43,965 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:43,965 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:43,965 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-06-05 00:37:43,965 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 00:37:43,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:43,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1252077221, now seen corresponding path program 30 times [2021-06-05 00:37:43,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:43,966 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196280748] [2021-06-05 00:37:43,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:44,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:44,555 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:44,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196280748] [2021-06-05 00:37:44,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196280748] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:44,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:44,556 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:44,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034704774] [2021-06-05 00:37:44,556 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:44,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:44,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:44,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:44,556 INFO L87 Difference]: Start difference. First operand 5451 states and 14511 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:47,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:47,217 INFO L93 Difference]: Finished difference Result 7338 states and 19245 transitions. [2021-06-05 00:37:47,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:37:47,218 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:47,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:47,225 INFO L225 Difference]: With dead ends: 7338 [2021-06-05 00:37:47,225 INFO L226 Difference]: Without dead ends: 7129 [2021-06-05 00:37:47,226 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 2165.9ms TimeCoverageRelationStatistics Valid=490, Invalid=2590, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:37:47,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7129 states. [2021-06-05 00:37:47,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7129 to 5631. [2021-06-05 00:37:47,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5631 states, 5630 states have (on average 2.657726465364121) internal successors, (14963), 5630 states have internal predecessors, (14963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:47,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5631 states to 5631 states and 14963 transitions. [2021-06-05 00:37:47,304 INFO L78 Accepts]: Start accepts. Automaton has 5631 states and 14963 transitions. Word has length 119 [2021-06-05 00:37:47,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:47,304 INFO L482 AbstractCegarLoop]: Abstraction has 5631 states and 14963 transitions. [2021-06-05 00:37:47,305 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:47,305 INFO L276 IsEmpty]: Start isEmpty. Operand 5631 states and 14963 transitions. [2021-06-05 00:37:47,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:47,309 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:47,310 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:47,310 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-06-05 00:37:47,310 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 00:37:47,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:47,310 INFO L82 PathProgramCache]: Analyzing trace with hash -849937569, now seen corresponding path program 31 times [2021-06-05 00:37:47,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:47,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300100983] [2021-06-05 00:37:47,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:47,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:47,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:47,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300100983] [2021-06-05 00:37:47,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300100983] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:47,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:47,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:47,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118641534] [2021-06-05 00:37:47,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:47,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:47,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:47,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:47,956 INFO L87 Difference]: Start difference. First operand 5631 states and 14963 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:50,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:50,761 INFO L93 Difference]: Finished difference Result 7685 states and 20063 transitions. [2021-06-05 00:37:50,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:37:50,761 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:50,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:50,768 INFO L225 Difference]: With dead ends: 7685 [2021-06-05 00:37:50,768 INFO L226 Difference]: Without dead ends: 7209 [2021-06-05 00:37:50,769 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 2324.9ms TimeCoverageRelationStatistics Valid=513, Invalid=2679, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:37:50,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7209 states. [2021-06-05 00:37:50,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7209 to 5703. [2021-06-05 00:37:50,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5703 states, 5702 states have (on average 2.6452122062434236) internal successors, (15083), 5702 states have internal predecessors, (15083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:50,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5703 states to 5703 states and 15083 transitions. [2021-06-05 00:37:50,865 INFO L78 Accepts]: Start accepts. Automaton has 5703 states and 15083 transitions. Word has length 119 [2021-06-05 00:37:50,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:50,865 INFO L482 AbstractCegarLoop]: Abstraction has 5703 states and 15083 transitions. [2021-06-05 00:37:50,865 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:50,865 INFO L276 IsEmpty]: Start isEmpty. Operand 5703 states and 15083 transitions. [2021-06-05 00:37:50,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:50,869 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:50,869 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:50,869 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-06-05 00:37:50,869 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 00:37:50,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:50,870 INFO L82 PathProgramCache]: Analyzing trace with hash 358487795, now seen corresponding path program 32 times [2021-06-05 00:37:50,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:50,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263462854] [2021-06-05 00:37:50,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:51,514 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 00:37:51,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:51,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263462854] [2021-06-05 00:37:51,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263462854] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:51,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:51,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:51,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322133903] [2021-06-05 00:37:51,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:51,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:51,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:51,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:51,516 INFO L87 Difference]: Start difference. First operand 5703 states and 15083 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:53,646 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2021-06-05 00:37:54,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:54,418 INFO L93 Difference]: Finished difference Result 7342 states and 19140 transitions. [2021-06-05 00:37:54,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:37:54,418 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:54,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:54,424 INFO L225 Difference]: With dead ends: 7342 [2021-06-05 00:37:54,425 INFO L226 Difference]: Without dead ends: 6801 [2021-06-05 00:37:54,425 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 2469.8ms TimeCoverageRelationStatistics Valid=519, Invalid=2787, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:37:54,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6801 states. [2021-06-05 00:37:54,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6801 to 5295. [2021-06-05 00:37:54,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.645825462788062) internal successors, (14007), 5294 states have internal predecessors, (14007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:54,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 14007 transitions. [2021-06-05 00:37:54,506 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 14007 transitions. Word has length 119 [2021-06-05 00:37:54,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:54,506 INFO L482 AbstractCegarLoop]: Abstraction has 5295 states and 14007 transitions. [2021-06-05 00:37:54,506 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:54,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 14007 transitions. [2021-06-05 00:37:54,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:54,510 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:54,510 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:54,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-06-05 00:37:54,510 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 00:37:54,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:54,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1717836333, now seen corresponding path program 33 times [2021-06-05 00:37:54,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:54,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148759564] [2021-06-05 00:37:54,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:55,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:37:55,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:55,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148759564] [2021-06-05 00:37:55,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148759564] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:55,091 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:55,091 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:55,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471419338] [2021-06-05 00:37:55,091 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:55,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:55,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:55,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:55,092 INFO L87 Difference]: Start difference. First operand 5295 states and 14007 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:57,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:37:57,758 INFO L93 Difference]: Finished difference Result 6938 states and 18089 transitions. [2021-06-05 00:37:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:37:57,759 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:37:57,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:37:57,765 INFO L225 Difference]: With dead ends: 6938 [2021-06-05 00:37:57,765 INFO L226 Difference]: Without dead ends: 6584 [2021-06-05 00:37:57,766 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 2212.6ms TimeCoverageRelationStatistics Valid=490, Invalid=2590, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:37:57,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6584 states. [2021-06-05 00:37:57,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6584 to 5175. [2021-06-05 00:37:57,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 2.642249710088906) internal successors, (13671), 5174 states have internal predecessors, (13671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 13671 transitions. [2021-06-05 00:37:57,861 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 13671 transitions. Word has length 119 [2021-06-05 00:37:57,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:37:57,861 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 13671 transitions. [2021-06-05 00:37:57,861 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:37:57,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 13671 transitions. [2021-06-05 00:37:57,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:37:57,865 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:37:57,865 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:37:57,866 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-06-05 00:37:57,866 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 00:37:57,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:37:57,866 INFO L82 PathProgramCache]: Analyzing trace with hash -849843749, now seen corresponding path program 34 times [2021-06-05 00:37:57,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:37:57,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933920733] [2021-06-05 00:37:57,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:37:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:37:58,513 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 00:37:58,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:37:58,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933920733] [2021-06-05 00:37:58,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933920733] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:37:58,514 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:37:58,514 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:37:58,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520814931] [2021-06-05 00:37:58,514 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:37:58,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:37:58,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:37:58,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:37:58,514 INFO L87 Difference]: Start difference. First operand 5175 states and 13671 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:01,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:01,481 INFO L93 Difference]: Finished difference Result 7067 states and 18258 transitions. [2021-06-05 00:38:01,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:38:01,481 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:01,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:01,486 INFO L225 Difference]: With dead ends: 7067 [2021-06-05 00:38:01,486 INFO L226 Difference]: Without dead ends: 6353 [2021-06-05 00:38:01,486 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 2533.5ms TimeCoverageRelationStatistics Valid=539, Invalid=2883, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:38:01,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6353 states. [2021-06-05 00:38:01,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6353 to 4770. [2021-06-05 00:38:01,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4770 states, 4769 states have (on average 2.6464667645208637) internal successors, (12621), 4769 states have internal predecessors, (12621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:01,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4770 states to 4770 states and 12621 transitions. [2021-06-05 00:38:01,539 INFO L78 Accepts]: Start accepts. Automaton has 4770 states and 12621 transitions. Word has length 119 [2021-06-05 00:38:01,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:01,539 INFO L482 AbstractCegarLoop]: Abstraction has 4770 states and 12621 transitions. [2021-06-05 00:38:01,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:01,539 INFO L276 IsEmpty]: Start isEmpty. Operand 4770 states and 12621 transitions. [2021-06-05 00:38:01,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:01,543 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:01,543 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:01,543 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-06-05 00:38:01,543 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 00:38:01,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:01,543 INFO L82 PathProgramCache]: Analyzing trace with hash 972938779, now seen corresponding path program 35 times [2021-06-05 00:38:01,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:01,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031488332] [2021-06-05 00:38:01,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:02,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:02,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:02,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031488332] [2021-06-05 00:38:02,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031488332] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:02,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:02,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:02,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467661868] [2021-06-05 00:38:02,151 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:02,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:02,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:02,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:02,152 INFO L87 Difference]: Start difference. First operand 4770 states and 12621 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:03,622 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-05 00:38:04,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:04,732 INFO L93 Difference]: Finished difference Result 5523 states and 14426 transitions. [2021-06-05 00:38:04,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:38:04,733 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:04,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:04,738 INFO L225 Difference]: With dead ends: 5523 [2021-06-05 00:38:04,739 INFO L226 Difference]: Without dead ends: 5310 [2021-06-05 00:38:04,739 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 2292.0ms TimeCoverageRelationStatistics Valid=523, Invalid=2557, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:38:04,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5310 states. [2021-06-05 00:38:04,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5310 to 4786. [2021-06-05 00:38:04,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4786 states, 4785 states have (on average 2.645141065830721) internal successors, (12657), 4785 states have internal predecessors, (12657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:04,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4786 states to 4786 states and 12657 transitions. [2021-06-05 00:38:04,815 INFO L78 Accepts]: Start accepts. Automaton has 4786 states and 12657 transitions. Word has length 119 [2021-06-05 00:38:04,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:04,815 INFO L482 AbstractCegarLoop]: Abstraction has 4786 states and 12657 transitions. [2021-06-05 00:38:04,815 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:04,815 INFO L276 IsEmpty]: Start isEmpty. Operand 4786 states and 12657 transitions. [2021-06-05 00:38:04,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:04,820 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:04,820 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:04,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-06-05 00:38:04,820 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 00:38:04,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:04,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1170952713, now seen corresponding path program 36 times [2021-06-05 00:38:04,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:04,820 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100201519] [2021-06-05 00:38:04,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:05,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:05,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:05,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100201519] [2021-06-05 00:38:05,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100201519] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:05,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:05,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:05,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481837816] [2021-06-05 00:38:05,485 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:05,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:05,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:05,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:05,486 INFO L87 Difference]: Start difference. First operand 4786 states and 12657 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:07,198 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-06-05 00:38:08,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:08,136 INFO L93 Difference]: Finished difference Result 5544 states and 14473 transitions. [2021-06-05 00:38:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:38:08,136 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:08,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:08,141 INFO L225 Difference]: With dead ends: 5544 [2021-06-05 00:38:08,141 INFO L226 Difference]: Without dead ends: 5306 [2021-06-05 00:38:08,142 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 2356.9ms TimeCoverageRelationStatistics Valid=506, Invalid=2574, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:38:08,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5306 states. [2021-06-05 00:38:08,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5306 to 4782. [2021-06-05 00:38:08,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 4781 states have (on average 2.645262497385484) internal successors, (12647), 4781 states have internal predecessors, (12647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:08,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 12647 transitions. [2021-06-05 00:38:08,196 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 12647 transitions. Word has length 119 [2021-06-05 00:38:08,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:08,196 INFO L482 AbstractCegarLoop]: Abstraction has 4782 states and 12647 transitions. [2021-06-05 00:38:08,196 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:08,196 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 12647 transitions. [2021-06-05 00:38:08,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:08,200 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:08,200 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:08,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-06-05 00:38:08,200 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 00:38:08,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:08,201 INFO L82 PathProgramCache]: Analyzing trace with hash 916663771, now seen corresponding path program 37 times [2021-06-05 00:38:08,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:08,201 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674504486] [2021-06-05 00:38:08,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:08,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:08,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:08,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674504486] [2021-06-05 00:38:08,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674504486] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:08,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:08,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:08,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815939477] [2021-06-05 00:38:08,841 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:08,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:08,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:08,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:08,842 INFO L87 Difference]: Start difference. First operand 4782 states and 12647 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:11,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:11,630 INFO L93 Difference]: Finished difference Result 5863 states and 15134 transitions. [2021-06-05 00:38:11,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:38:11,631 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:11,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:11,635 INFO L225 Difference]: With dead ends: 5863 [2021-06-05 00:38:11,635 INFO L226 Difference]: Without dead ends: 5461 [2021-06-05 00:38:11,636 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 2358.7ms TimeCoverageRelationStatistics Valid=571, Invalid=2851, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:38:11,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5461 states. [2021-06-05 00:38:11,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5461 to 4689. [2021-06-05 00:38:11,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 4688 states have (on average 2.6473976109215016) internal successors, (12411), 4688 states have internal predecessors, (12411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 12411 transitions. [2021-06-05 00:38:11,706 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 12411 transitions. Word has length 119 [2021-06-05 00:38:11,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:11,706 INFO L482 AbstractCegarLoop]: Abstraction has 4689 states and 12411 transitions. [2021-06-05 00:38:11,706 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:11,707 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 12411 transitions. [2021-06-05 00:38:11,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:11,710 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:11,710 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:11,710 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-06-05 00:38:11,710 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 00:38:11,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:11,711 INFO L82 PathProgramCache]: Analyzing trace with hash 61921003, now seen corresponding path program 38 times [2021-06-05 00:38:11,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:11,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928711986] [2021-06-05 00:38:11,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:12,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:12,321 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:12,321 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928711986] [2021-06-05 00:38:12,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928711986] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:12,322 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:12,322 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:12,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459849277] [2021-06-05 00:38:12,322 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:12,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:12,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:12,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:12,322 INFO L87 Difference]: Start difference. First operand 4689 states and 12411 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:13,538 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-06-05 00:38:13,725 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-05 00:38:15,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:15,128 INFO L93 Difference]: Finished difference Result 5411 states and 13961 transitions. [2021-06-05 00:38:15,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:38:15,128 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:15,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:15,133 INFO L225 Difference]: With dead ends: 5411 [2021-06-05 00:38:15,133 INFO L226 Difference]: Without dead ends: 5096 [2021-06-05 00:38:15,133 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 2392.9ms TimeCoverageRelationStatistics Valid=596, Invalid=2826, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:38:15,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5096 states. [2021-06-05 00:38:15,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5096 to 4689. [2021-06-05 00:38:15,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 4688 states have (on average 2.646117747440273) internal successors, (12405), 4688 states have internal predecessors, (12405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:15,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 12405 transitions. [2021-06-05 00:38:15,198 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 12405 transitions. Word has length 119 [2021-06-05 00:38:15,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:15,198 INFO L482 AbstractCegarLoop]: Abstraction has 4689 states and 12405 transitions. [2021-06-05 00:38:15,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:15,198 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 12405 transitions. [2021-06-05 00:38:15,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:15,201 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:15,201 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:15,202 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-06-05 00:38:15,202 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 00:38:15,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:15,202 INFO L82 PathProgramCache]: Analyzing trace with hash 581281773, now seen corresponding path program 39 times [2021-06-05 00:38:15,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:15,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371782893] [2021-06-05 00:38:15,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:15,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:15,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:15,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371782893] [2021-06-05 00:38:15,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371782893] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:15,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:15,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:15,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834996111] [2021-06-05 00:38:15,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:15,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:15,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:15,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:15,837 INFO L87 Difference]: Start difference. First operand 4689 states and 12405 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:17,090 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-06-05 00:38:17,248 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-05 00:38:18,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:18,823 INFO L93 Difference]: Finished difference Result 5447 states and 14018 transitions. [2021-06-05 00:38:18,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:38:18,823 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:18,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:18,827 INFO L225 Difference]: With dead ends: 5447 [2021-06-05 00:38:18,827 INFO L226 Difference]: Without dead ends: 5144 [2021-06-05 00:38:18,827 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 2597.6ms TimeCoverageRelationStatistics Valid=623, Invalid=2917, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:38:18,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5144 states. [2021-06-05 00:38:18,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5144 to 4687. [2021-06-05 00:38:18,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4687 states, 4686 states have (on average 2.6453265044814342) internal successors, (12396), 4686 states have internal predecessors, (12396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:18,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4687 states to 4687 states and 12396 transitions. [2021-06-05 00:38:18,878 INFO L78 Accepts]: Start accepts. Automaton has 4687 states and 12396 transitions. Word has length 119 [2021-06-05 00:38:18,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:18,879 INFO L482 AbstractCegarLoop]: Abstraction has 4687 states and 12396 transitions. [2021-06-05 00:38:18,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:18,879 INFO L276 IsEmpty]: Start isEmpty. Operand 4687 states and 12396 transitions. [2021-06-05 00:38:18,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:18,883 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:18,883 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:18,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-06-05 00:38:18,883 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 00:38:18,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:18,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1733833719, now seen corresponding path program 40 times [2021-06-05 00:38:18,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:18,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105794288] [2021-06-05 00:38:18,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:19,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:19,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:19,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105794288] [2021-06-05 00:38:19,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105794288] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:19,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:19,584 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:19,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884573107] [2021-06-05 00:38:19,584 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:19,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:19,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:19,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:19,584 INFO L87 Difference]: Start difference. First operand 4687 states and 12396 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:22,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:22,720 INFO L93 Difference]: Finished difference Result 5360 states and 13812 transitions. [2021-06-05 00:38:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:38:22,720 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:22,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:22,724 INFO L225 Difference]: With dead ends: 5360 [2021-06-05 00:38:22,724 INFO L226 Difference]: Without dead ends: 5012 [2021-06-05 00:38:22,724 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 2690.6ms TimeCoverageRelationStatistics Valid=606, Invalid=2934, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:38:22,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5012 states. [2021-06-05 00:38:22,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5012 to 4631. [2021-06-05 00:38:22,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4631 states, 4630 states have (on average 2.647948164146868) internal successors, (12260), 4630 states have internal predecessors, (12260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:22,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4631 states to 4631 states and 12260 transitions. [2021-06-05 00:38:22,772 INFO L78 Accepts]: Start accepts. Automaton has 4631 states and 12260 transitions. Word has length 119 [2021-06-05 00:38:22,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:22,772 INFO L482 AbstractCegarLoop]: Abstraction has 4631 states and 12260 transitions. [2021-06-05 00:38:22,772 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:22,772 INFO L276 IsEmpty]: Start isEmpty. Operand 4631 states and 12260 transitions. [2021-06-05 00:38:22,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:22,776 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:22,776 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:22,776 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-06-05 00:38:22,776 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 00:38:22,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:22,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1511380245, now seen corresponding path program 41 times [2021-06-05 00:38:22,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:22,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81170247] [2021-06-05 00:38:22,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:23,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:23,429 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:23,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81170247] [2021-06-05 00:38:23,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81170247] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:23,429 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:23,429 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:23,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200753825] [2021-06-05 00:38:23,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:23,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:23,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:23,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:23,430 INFO L87 Difference]: Start difference. First operand 4631 states and 12260 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:24,852 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-06-05 00:38:24,993 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-05 00:38:26,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:26,158 INFO L93 Difference]: Finished difference Result 4998 states and 13025 transitions. [2021-06-05 00:38:26,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:38:26,159 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:26,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:26,162 INFO L225 Difference]: With dead ends: 4998 [2021-06-05 00:38:26,162 INFO L226 Difference]: Without dead ends: 4785 [2021-06-05 00:38:26,163 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 2325.6ms TimeCoverageRelationStatistics Valid=498, Invalid=2472, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:38:26,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2021-06-05 00:38:26,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 4637. [2021-06-05 00:38:26,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4637 states, 4636 states have (on average 2.64732528041415) internal successors, (12273), 4636 states have internal predecessors, (12273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:26,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 12273 transitions. [2021-06-05 00:38:26,213 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 12273 transitions. Word has length 119 [2021-06-05 00:38:26,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:26,213 INFO L482 AbstractCegarLoop]: Abstraction has 4637 states and 12273 transitions. [2021-06-05 00:38:26,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:26,213 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 12273 transitions. [2021-06-05 00:38:26,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:26,217 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:26,217 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:26,217 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-06-05 00:38:26,217 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 00:38:26,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:26,218 INFO L82 PathProgramCache]: Analyzing trace with hash 468471559, now seen corresponding path program 42 times [2021-06-05 00:38:26,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:26,218 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185903255] [2021-06-05 00:38:26,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:26,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:26,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:26,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185903255] [2021-06-05 00:38:26,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185903255] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:26,911 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:26,911 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:26,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690207108] [2021-06-05 00:38:26,912 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:26,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:26,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:26,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:26,912 INFO L87 Difference]: Start difference. First operand 4637 states and 12273 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:29,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:29,551 INFO L93 Difference]: Finished difference Result 5019 states and 13072 transitions. [2021-06-05 00:38:29,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:38:29,551 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:29,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:29,554 INFO L225 Difference]: With dead ends: 5019 [2021-06-05 00:38:29,554 INFO L226 Difference]: Without dead ends: 4781 [2021-06-05 00:38:29,555 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 2342.7ms TimeCoverageRelationStatistics Valid=482, Invalid=2488, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:38:29,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4781 states. [2021-06-05 00:38:29,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4781 to 4633. [2021-06-05 00:38:29,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4633 states, 4632 states have (on average 2.6474525043177892) internal successors, (12263), 4632 states have internal predecessors, (12263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:29,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4633 states to 4633 states and 12263 transitions. [2021-06-05 00:38:29,599 INFO L78 Accepts]: Start accepts. Automaton has 4633 states and 12263 transitions. Word has length 119 [2021-06-05 00:38:29,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:29,599 INFO L482 AbstractCegarLoop]: Abstraction has 4633 states and 12263 transitions. [2021-06-05 00:38:29,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:29,599 INFO L276 IsEmpty]: Start isEmpty. Operand 4633 states and 12263 transitions. [2021-06-05 00:38:29,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:29,603 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:29,603 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:29,603 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-06-05 00:38:29,603 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 00:38:29,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:29,603 INFO L82 PathProgramCache]: Analyzing trace with hash -841152243, now seen corresponding path program 43 times [2021-06-05 00:38:29,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:29,603 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073121351] [2021-06-05 00:38:29,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:30,306 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 00:38:30,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:30,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073121351] [2021-06-05 00:38:30,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073121351] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:30,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:30,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:30,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637963637] [2021-06-05 00:38:30,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:30,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:30,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:30,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:30,307 INFO L87 Difference]: Start difference. First operand 4633 states and 12263 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:33,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:33,125 INFO L93 Difference]: Finished difference Result 5266 states and 13563 transitions. [2021-06-05 00:38:33,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:38:33,125 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:33,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:33,128 INFO L225 Difference]: With dead ends: 5266 [2021-06-05 00:38:33,128 INFO L226 Difference]: Without dead ends: 4666 [2021-06-05 00:38:33,129 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 2446.7ms TimeCoverageRelationStatistics Valid=546, Invalid=2760, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:38:33,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2021-06-05 00:38:33,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 4274. [2021-06-05 00:38:33,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4274 states, 4273 states have (on average 2.658319681722443) internal successors, (11359), 4273 states have internal predecessors, (11359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:33,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4274 states to 4274 states and 11359 transitions. [2021-06-05 00:38:33,174 INFO L78 Accepts]: Start accepts. Automaton has 4274 states and 11359 transitions. Word has length 119 [2021-06-05 00:38:33,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:33,174 INFO L482 AbstractCegarLoop]: Abstraction has 4274 states and 11359 transitions. [2021-06-05 00:38:33,174 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:33,174 INFO L276 IsEmpty]: Start isEmpty. Operand 4274 states and 11359 transitions. [2021-06-05 00:38:33,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:33,178 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:33,178 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:33,178 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-06-05 00:38:33,178 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 00:38:33,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:33,178 INFO L82 PathProgramCache]: Analyzing trace with hash 672998753, now seen corresponding path program 44 times [2021-06-05 00:38:33,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:33,179 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769543634] [2021-06-05 00:38:33,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:33,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:33,422 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:33,422 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769543634] [2021-06-05 00:38:33,422 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769543634] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:33,422 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:33,422 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 00:38:33,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675145270] [2021-06-05 00:38:33,423 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 00:38:33,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:33,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 00:38:33,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:38:33,423 INFO L87 Difference]: Start difference. First operand 4274 states and 11359 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:33,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:33,895 INFO L93 Difference]: Finished difference Result 5995 states and 15628 transitions. [2021-06-05 00:38:33,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 00:38:33,896 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:33,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:33,901 INFO L225 Difference]: With dead ends: 5995 [2021-06-05 00:38:33,901 INFO L226 Difference]: Without dead ends: 5771 [2021-06-05 00:38:33,902 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 404.4ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-06-05 00:38:33,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5771 states. [2021-06-05 00:38:33,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5771 to 4164. [2021-06-05 00:38:33,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4164 states, 4163 states have (on average 2.6509728561133796) internal successors, (11036), 4163 states have internal predecessors, (11036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:33,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4164 states to 4164 states and 11036 transitions. [2021-06-05 00:38:33,959 INFO L78 Accepts]: Start accepts. Automaton has 4164 states and 11036 transitions. Word has length 119 [2021-06-05 00:38:33,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:33,960 INFO L482 AbstractCegarLoop]: Abstraction has 4164 states and 11036 transitions. [2021-06-05 00:38:33,960 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:33,960 INFO L276 IsEmpty]: Start isEmpty. Operand 4164 states and 11036 transitions. [2021-06-05 00:38:33,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:33,963 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:33,964 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:33,964 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-06-05 00:38:33,964 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 00:38:33,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:33,964 INFO L82 PathProgramCache]: Analyzing trace with hash 943376607, now seen corresponding path program 45 times [2021-06-05 00:38:33,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:33,964 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445678889] [2021-06-05 00:38:33,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:34,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:34,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:34,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445678889] [2021-06-05 00:38:34,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445678889] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:34,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:34,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 00:38:34,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044446340] [2021-06-05 00:38:34,209 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 00:38:34,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:34,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 00:38:34,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:38:34,209 INFO L87 Difference]: Start difference. First operand 4164 states and 11036 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:34,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:34,642 INFO L93 Difference]: Finished difference Result 4103 states and 10314 transitions. [2021-06-05 00:38:34,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 00:38:34,643 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:34,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:34,646 INFO L225 Difference]: With dead ends: 4103 [2021-06-05 00:38:34,646 INFO L226 Difference]: Without dead ends: 3991 [2021-06-05 00:38:34,646 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 386.7ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-06-05 00:38:34,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3991 states. [2021-06-05 00:38:34,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3991 to 3382. [2021-06-05 00:38:34,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3381 states have (on average 2.5732031943212066) internal successors, (8700), 3381 states have internal predecessors, (8700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:34,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 8700 transitions. [2021-06-05 00:38:34,685 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 8700 transitions. Word has length 119 [2021-06-05 00:38:34,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:34,685 INFO L482 AbstractCegarLoop]: Abstraction has 3382 states and 8700 transitions. [2021-06-05 00:38:34,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:34,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 8700 transitions. [2021-06-05 00:38:34,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:34,688 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:34,688 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:34,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-06-05 00:38:34,688 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 00:38:34,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:34,688 INFO L82 PathProgramCache]: Analyzing trace with hash 371611779, now seen corresponding path program 46 times [2021-06-05 00:38:34,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:34,688 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670247292] [2021-06-05 00:38:34,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:35,263 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 00:38:35,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:35,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670247292] [2021-06-05 00:38:35,263 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670247292] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:35,263 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:35,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:35,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484520734] [2021-06-05 00:38:35,264 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:35,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:35,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:35,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:35,264 INFO L87 Difference]: Start difference. First operand 3382 states and 8700 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:36,704 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-06-05 00:38:37,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:37,576 INFO L93 Difference]: Finished difference Result 3615 states and 9136 transitions. [2021-06-05 00:38:37,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:38:37,576 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:37,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:37,579 INFO L225 Difference]: With dead ends: 3615 [2021-06-05 00:38:37,580 INFO L226 Difference]: Without dead ends: 3386 [2021-06-05 00:38:37,580 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 1991.9ms TimeCoverageRelationStatistics Valid=442, Invalid=2210, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:38:37,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-06-05 00:38:37,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3382. [2021-06-05 00:38:37,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3381 states have (on average 2.5708370304643595) internal successors, (8692), 3381 states have internal predecessors, (8692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:37,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 8692 transitions. [2021-06-05 00:38:37,616 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 8692 transitions. Word has length 119 [2021-06-05 00:38:37,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:37,616 INFO L482 AbstractCegarLoop]: Abstraction has 3382 states and 8692 transitions. [2021-06-05 00:38:37,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:37,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 8692 transitions. [2021-06-05 00:38:37,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:37,619 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:37,619 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:37,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-06-05 00:38:37,619 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 00:38:37,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:37,620 INFO L82 PathProgramCache]: Analyzing trace with hash 367193639, now seen corresponding path program 47 times [2021-06-05 00:38:37,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:37,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138968034] [2021-06-05 00:38:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:38,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:38,231 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:38,231 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138968034] [2021-06-05 00:38:38,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138968034] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:38,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:38,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:38,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693596224] [2021-06-05 00:38:38,232 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:38,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:38,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:38,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:38,232 INFO L87 Difference]: Start difference. First operand 3382 states and 8692 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:39,359 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 00:38:40,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:40,597 INFO L93 Difference]: Finished difference Result 3823 states and 9688 transitions. [2021-06-05 00:38:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:38:40,598 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:40,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:40,601 INFO L225 Difference]: With dead ends: 3823 [2021-06-05 00:38:40,601 INFO L226 Difference]: Without dead ends: 3614 [2021-06-05 00:38:40,601 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 2009.1ms TimeCoverageRelationStatistics Valid=447, Invalid=2309, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:38:40,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2021-06-05 00:38:40,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 3526. [2021-06-05 00:38:40,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 3525 states have (on average 2.566808510638298) internal successors, (9048), 3525 states have internal predecessors, (9048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:40,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 9048 transitions. [2021-06-05 00:38:40,638 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 9048 transitions. Word has length 119 [2021-06-05 00:38:40,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:40,638 INFO L482 AbstractCegarLoop]: Abstraction has 3526 states and 9048 transitions. [2021-06-05 00:38:40,638 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:40,638 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 9048 transitions. [2021-06-05 00:38:40,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:40,641 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:40,641 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:40,641 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-06-05 00:38:40,641 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 00:38:40,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:40,642 INFO L82 PathProgramCache]: Analyzing trace with hash -107512663, now seen corresponding path program 48 times [2021-06-05 00:38:40,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:40,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522375711] [2021-06-05 00:38:40,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:41,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:41,247 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:41,247 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522375711] [2021-06-05 00:38:41,247 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522375711] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:41,247 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:41,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:41,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424505844] [2021-06-05 00:38:41,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:41,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:41,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:41,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:41,248 INFO L87 Difference]: Start difference. First operand 3526 states and 9048 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:43,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:43,823 INFO L93 Difference]: Finished difference Result 4065 states and 10202 transitions. [2021-06-05 00:38:43,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:38:43,823 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:43,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:43,826 INFO L225 Difference]: With dead ends: 4065 [2021-06-05 00:38:43,826 INFO L226 Difference]: Without dead ends: 3076 [2021-06-05 00:38:43,826 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 2216.3ms TimeCoverageRelationStatistics Valid=514, Invalid=2678, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:38:43,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3076 states. [2021-06-05 00:38:43,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3076 to 2974. [2021-06-05 00:38:43,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 2973 states have (on average 2.572485704675412) internal successors, (7648), 2973 states have internal predecessors, (7648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:43,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 7648 transitions. [2021-06-05 00:38:43,855 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 7648 transitions. Word has length 119 [2021-06-05 00:38:43,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:43,855 INFO L482 AbstractCegarLoop]: Abstraction has 2974 states and 7648 transitions. [2021-06-05 00:38:43,855 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:43,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 7648 transitions. [2021-06-05 00:38:43,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:43,857 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:43,857 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:43,857 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-06-05 00:38:43,858 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 00:38:43,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:43,858 INFO L82 PathProgramCache]: Analyzing trace with hash -551577325, now seen corresponding path program 49 times [2021-06-05 00:38:43,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:43,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437112368] [2021-06-05 00:38:43,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:44,444 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 00:38:44,445 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:44,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437112368] [2021-06-05 00:38:44,445 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437112368] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:44,445 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:44,445 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:44,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773070061] [2021-06-05 00:38:44,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:44,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:44,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:44,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:44,446 INFO L87 Difference]: Start difference. First operand 2974 states and 7648 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:45,836 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-06-05 00:38:46,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:46,777 INFO L93 Difference]: Finished difference Result 3187 states and 8054 transitions. [2021-06-05 00:38:46,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:38:46,777 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:46,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:46,779 INFO L225 Difference]: With dead ends: 3187 [2021-06-05 00:38:46,779 INFO L226 Difference]: Without dead ends: 2854 [2021-06-05 00:38:46,780 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 2063.1ms TimeCoverageRelationStatistics Valid=459, Invalid=2297, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:38:46,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2021-06-05 00:38:46,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 2854. [2021-06-05 00:38:46,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2854 states, 2853 states have (on average 2.5993690851735014) internal successors, (7416), 2853 states have internal predecessors, (7416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:46,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2854 states to 2854 states and 7416 transitions. [2021-06-05 00:38:46,806 INFO L78 Accepts]: Start accepts. Automaton has 2854 states and 7416 transitions. Word has length 119 [2021-06-05 00:38:46,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:46,806 INFO L482 AbstractCegarLoop]: Abstraction has 2854 states and 7416 transitions. [2021-06-05 00:38:46,806 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:46,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2854 states and 7416 transitions. [2021-06-05 00:38:46,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:46,808 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:46,808 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:46,808 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-06-05 00:38:46,808 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 00:38:46,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:46,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1170997685, now seen corresponding path program 50 times [2021-06-05 00:38:46,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:46,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510204691] [2021-06-05 00:38:46,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:47,440 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 00:38:47,440 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:47,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510204691] [2021-06-05 00:38:47,440 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510204691] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:47,440 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:47,441 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:47,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41032089] [2021-06-05 00:38:47,441 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:47,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:47,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:47,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:47,441 INFO L87 Difference]: Start difference. First operand 2854 states and 7416 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:48,625 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 00:38:48,803 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-06-05 00:38:49,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:49,614 INFO L93 Difference]: Finished difference Result 3087 states and 7852 transitions. [2021-06-05 00:38:49,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:38:49,615 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:49,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:49,617 INFO L225 Difference]: With dead ends: 3087 [2021-06-05 00:38:49,617 INFO L226 Difference]: Without dead ends: 2830 [2021-06-05 00:38:49,618 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 1943.5ms TimeCoverageRelationStatistics Valid=445, Invalid=2207, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:38:49,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2021-06-05 00:38:49,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2830. [2021-06-05 00:38:49,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2830 states, 2829 states have (on average 2.6044538706256626) internal successors, (7368), 2829 states have internal predecessors, (7368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:49,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2830 states to 2830 states and 7368 transitions. [2021-06-05 00:38:49,646 INFO L78 Accepts]: Start accepts. Automaton has 2830 states and 7368 transitions. Word has length 119 [2021-06-05 00:38:49,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:49,646 INFO L482 AbstractCegarLoop]: Abstraction has 2830 states and 7368 transitions. [2021-06-05 00:38:49,647 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:49,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2830 states and 7368 transitions. [2021-06-05 00:38:49,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:49,649 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:49,649 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:49,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-06-05 00:38:49,649 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 00:38:49,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:49,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1017089893, now seen corresponding path program 51 times [2021-06-05 00:38:49,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:49,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444406756] [2021-06-05 00:38:49,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:50,245 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 00:38:50,245 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:50,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444406756] [2021-06-05 00:38:50,245 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444406756] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:50,245 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:50,246 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:50,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43495260] [2021-06-05 00:38:50,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:50,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:50,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:50,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:50,246 INFO L87 Difference]: Start difference. First operand 2830 states and 7368 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:52,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:52,429 INFO L93 Difference]: Finished difference Result 3023 states and 7747 transitions. [2021-06-05 00:38:52,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:38:52,430 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:52,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:52,432 INFO L225 Difference]: With dead ends: 3023 [2021-06-05 00:38:52,432 INFO L226 Difference]: Without dead ends: 2697 [2021-06-05 00:38:52,433 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 1870.4ms TimeCoverageRelationStatistics Valid=445, Invalid=2207, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:38:52,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2021-06-05 00:38:52,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 2657. [2021-06-05 00:38:52,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2657 states, 2656 states have (on average 2.6438253012048194) internal successors, (7022), 2656 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:52,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 7022 transitions. [2021-06-05 00:38:52,459 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 7022 transitions. Word has length 119 [2021-06-05 00:38:52,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:52,459 INFO L482 AbstractCegarLoop]: Abstraction has 2657 states and 7022 transitions. [2021-06-05 00:38:52,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:52,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 7022 transitions. [2021-06-05 00:38:52,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:52,461 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:52,461 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:52,461 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-06-05 00:38:52,461 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 00:38:52,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:52,462 INFO L82 PathProgramCache]: Analyzing trace with hash 625952829, now seen corresponding path program 52 times [2021-06-05 00:38:52,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:52,462 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987921277] [2021-06-05 00:38:52,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:52,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:52,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:52,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987921277] [2021-06-05 00:38:52,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987921277] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:52,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:52,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 00:38:52,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408453435] [2021-06-05 00:38:52,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 00:38:52,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:52,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 00:38:52,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:38:52,651 INFO L87 Difference]: Start difference. First operand 2657 states and 7022 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:52,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:52,929 INFO L93 Difference]: Finished difference Result 5076 states and 13227 transitions. [2021-06-05 00:38:52,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:38:52,929 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:52,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:52,933 INFO L225 Difference]: With dead ends: 5076 [2021-06-05 00:38:52,933 INFO L226 Difference]: Without dead ends: 5076 [2021-06-05 00:38:52,934 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 262.9ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:38:52,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5076 states. [2021-06-05 00:38:52,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5076 to 2829. [2021-06-05 00:38:52,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2829 states, 2828 states have (on average 2.639321074964639) internal successors, (7464), 2828 states have internal predecessors, (7464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:52,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 7464 transitions. [2021-06-05 00:38:52,972 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 7464 transitions. Word has length 119 [2021-06-05 00:38:52,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:52,972 INFO L482 AbstractCegarLoop]: Abstraction has 2829 states and 7464 transitions. [2021-06-05 00:38:52,972 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:52,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 7464 transitions. [2021-06-05 00:38:52,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:52,974 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:52,974 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:52,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-06-05 00:38:52,974 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 00:38:52,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:52,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1542907711, now seen corresponding path program 53 times [2021-06-05 00:38:52,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:52,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519785530] [2021-06-05 00:38:52,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:53,609 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 00:38:53,609 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:53,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519785530] [2021-06-05 00:38:53,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519785530] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:53,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:53,609 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:53,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757632540] [2021-06-05 00:38:53,610 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:53,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:53,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:53,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:53,610 INFO L87 Difference]: Start difference. First operand 2829 states and 7464 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:54,551 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-06-05 00:38:54,792 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-06-05 00:38:56,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:56,708 INFO L93 Difference]: Finished difference Result 4703 states and 12288 transitions. [2021-06-05 00:38:56,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:38:56,709 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:56,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:56,713 INFO L225 Difference]: With dead ends: 4703 [2021-06-05 00:38:56,713 INFO L226 Difference]: Without dead ends: 4508 [2021-06-05 00:38:56,714 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2562.8ms TimeCoverageRelationStatistics Valid=571, Invalid=2969, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:38:56,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2021-06-05 00:38:56,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 3345. [2021-06-05 00:38:56,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3345 states, 3344 states have (on average 2.6632775119617227) internal successors, (8906), 3344 states have internal predecessors, (8906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:56,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3345 states to 3345 states and 8906 transitions. [2021-06-05 00:38:56,756 INFO L78 Accepts]: Start accepts. Automaton has 3345 states and 8906 transitions. Word has length 119 [2021-06-05 00:38:56,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:56,756 INFO L482 AbstractCegarLoop]: Abstraction has 3345 states and 8906 transitions. [2021-06-05 00:38:56,756 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:56,756 INFO L276 IsEmpty]: Start isEmpty. Operand 3345 states and 8906 transitions. [2021-06-05 00:38:56,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:56,759 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:56,759 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:56,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-06-05 00:38:56,759 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 00:38:56,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:56,759 INFO L82 PathProgramCache]: Analyzing trace with hash -296789471, now seen corresponding path program 2 times [2021-06-05 00:38:56,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:56,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942684656] [2021-06-05 00:38:56,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:57,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:57,286 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:57,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942684656] [2021-06-05 00:38:57,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942684656] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:57,287 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:57,287 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-05 00:38:57,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939589518] [2021-06-05 00:38:57,287 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-05 00:38:57,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:57,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-05 00:38:57,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2021-06-05 00:38:57,287 INFO L87 Difference]: Start difference. First operand 3345 states and 8906 transitions. Second operand has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:59,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:38:59,029 INFO L93 Difference]: Finished difference Result 5894 states and 15645 transitions. [2021-06-05 00:38:59,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:38:59,029 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:38:59,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:38:59,035 INFO L225 Difference]: With dead ends: 5894 [2021-06-05 00:38:59,035 INFO L226 Difference]: Without dead ends: 5829 [2021-06-05 00:38:59,035 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1363.4ms TimeCoverageRelationStatistics Valid=576, Invalid=1974, Unknown=0, NotChecked=0, Total=2550 [2021-06-05 00:38:59,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5829 states. [2021-06-05 00:38:59,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5829 to 5736. [2021-06-05 00:38:59,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 5735 states have (on average 2.680034873583261) internal successors, (15370), 5735 states have internal predecessors, (15370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:59,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 15370 transitions. [2021-06-05 00:38:59,102 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 15370 transitions. Word has length 119 [2021-06-05 00:38:59,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:38:59,102 INFO L482 AbstractCegarLoop]: Abstraction has 5736 states and 15370 transitions. [2021-06-05 00:38:59,102 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:38:59,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 15370 transitions. [2021-06-05 00:38:59,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:38:59,107 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:38:59,108 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:38:59,108 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-06-05 00:38:59,108 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 00:38:59,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:38:59,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1945047363, now seen corresponding path program 54 times [2021-06-05 00:38:59,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:38:59,108 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502151516] [2021-06-05 00:38:59,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:38:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:38:59,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:38:59,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:38:59,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502151516] [2021-06-05 00:38:59,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502151516] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:38:59,718 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:38:59,718 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:38:59,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115738354] [2021-06-05 00:38:59,718 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:38:59,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:38:59,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:38:59,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:38:59,719 INFO L87 Difference]: Start difference. First operand 5736 states and 15370 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:02,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:02,623 INFO L93 Difference]: Finished difference Result 8528 states and 22532 transitions. [2021-06-05 00:39:02,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:39:02,623 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:02,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:02,631 INFO L225 Difference]: With dead ends: 8528 [2021-06-05 00:39:02,631 INFO L226 Difference]: Without dead ends: 7762 [2021-06-05 00:39:02,631 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 2436.9ms TimeCoverageRelationStatistics Valid=614, Invalid=2926, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:39:02,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7762 states. [2021-06-05 00:39:02,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7762 to 5856. [2021-06-05 00:39:02,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5856 states, 5855 states have (on average 2.66199829205807) internal successors, (15586), 5855 states have internal predecessors, (15586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:02,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5856 states to 5856 states and 15586 transitions. [2021-06-05 00:39:02,708 INFO L78 Accepts]: Start accepts. Automaton has 5856 states and 15586 transitions. Word has length 119 [2021-06-05 00:39:02,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:02,708 INFO L482 AbstractCegarLoop]: Abstraction has 5856 states and 15586 transitions. [2021-06-05 00:39:02,708 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:02,708 INFO L276 IsEmpty]: Start isEmpty. Operand 5856 states and 15586 transitions. [2021-06-05 00:39:02,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:02,713 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:02,713 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:02,713 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-06-05 00:39:02,713 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 00:39:02,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:02,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1141494569, now seen corresponding path program 55 times [2021-06-05 00:39:02,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:02,713 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7062914] [2021-06-05 00:39:02,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:03,352 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 00:39:03,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:03,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7062914] [2021-06-05 00:39:03,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7062914] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:03,352 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:03,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:03,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417548455] [2021-06-05 00:39:03,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:03,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:03,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:03,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:03,353 INFO L87 Difference]: Start difference. First operand 5856 states and 15586 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:04,507 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-06-05 00:39:06,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:06,537 INFO L93 Difference]: Finished difference Result 7953 states and 20909 transitions. [2021-06-05 00:39:06,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 00:39:06,538 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:06,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:06,545 INFO L225 Difference]: With dead ends: 7953 [2021-06-05 00:39:06,545 INFO L226 Difference]: Without dead ends: 7114 [2021-06-05 00:39:06,545 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2777.5ms TimeCoverageRelationStatistics Valid=635, Invalid=3147, Unknown=0, NotChecked=0, Total=3782 [2021-06-05 00:39:06,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2021-06-05 00:39:06,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 5208. [2021-06-05 00:39:06,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5208 states, 5207 states have (on average 2.6606491261763012) internal successors, (13854), 5207 states have internal predecessors, (13854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:06,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 5208 states and 13854 transitions. [2021-06-05 00:39:06,616 INFO L78 Accepts]: Start accepts. Automaton has 5208 states and 13854 transitions. Word has length 119 [2021-06-05 00:39:06,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:06,616 INFO L482 AbstractCegarLoop]: Abstraction has 5208 states and 13854 transitions. [2021-06-05 00:39:06,617 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:06,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5208 states and 13854 transitions. [2021-06-05 00:39:06,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:06,621 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:06,621 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:06,621 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-06-05 00:39:06,621 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 00:39:06,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:06,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1550242815, now seen corresponding path program 56 times [2021-06-05 00:39:06,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:06,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997923006] [2021-06-05 00:39:06,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:07,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:07,283 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:07,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997923006] [2021-06-05 00:39:07,283 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997923006] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:07,283 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:07,283 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:07,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882132627] [2021-06-05 00:39:07,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:07,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:07,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:07,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:07,284 INFO L87 Difference]: Start difference. First operand 5208 states and 13854 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:08,405 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-06-05 00:39:08,790 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 00:39:10,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:10,289 INFO L93 Difference]: Finished difference Result 6608 states and 17330 transitions. [2021-06-05 00:39:10,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:39:10,290 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:10,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:10,296 INFO L225 Difference]: With dead ends: 6608 [2021-06-05 00:39:10,296 INFO L226 Difference]: Without dead ends: 6281 [2021-06-05 00:39:10,296 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 2628.5ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:39:10,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6281 states. [2021-06-05 00:39:10,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 5200. [2021-06-05 00:39:10,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5200 states, 5199 states have (on average 2.660126947489902) internal successors, (13830), 5199 states have internal predecessors, (13830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:10,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5200 states to 5200 states and 13830 transitions. [2021-06-05 00:39:10,360 INFO L78 Accepts]: Start accepts. Automaton has 5200 states and 13830 transitions. Word has length 119 [2021-06-05 00:39:10,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:10,360 INFO L482 AbstractCegarLoop]: Abstraction has 5200 states and 13830 transitions. [2021-06-05 00:39:10,360 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:10,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5200 states and 13830 transitions. [2021-06-05 00:39:10,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:10,364 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:10,364 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:10,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-06-05 00:39:10,364 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 00:39:10,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:10,365 INFO L82 PathProgramCache]: Analyzing trace with hash -2040409167, now seen corresponding path program 57 times [2021-06-05 00:39:10,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:10,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551777434] [2021-06-05 00:39:10,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:10,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:10,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:10,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551777434] [2021-06-05 00:39:10,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551777434] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:10,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:10,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:10,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129747410] [2021-06-05 00:39:10,999 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:10,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:10,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:11,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:11,000 INFO L87 Difference]: Start difference. First operand 5200 states and 13830 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:12,255 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-06-05 00:39:12,423 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 00:39:13,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:13,814 INFO L93 Difference]: Finished difference Result 6354 states and 16612 transitions. [2021-06-05 00:39:13,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:39:13,815 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:13,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:13,820 INFO L225 Difference]: With dead ends: 6354 [2021-06-05 00:39:13,820 INFO L226 Difference]: Without dead ends: 5967 [2021-06-05 00:39:13,821 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2458.0ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:39:13,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5967 states. [2021-06-05 00:39:13,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5967 to 5192. [2021-06-05 00:39:13,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5191 states have (on average 2.6580620304372955) internal successors, (13798), 5191 states have internal predecessors, (13798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:13,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 13798 transitions. [2021-06-05 00:39:13,882 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 13798 transitions. Word has length 119 [2021-06-05 00:39:13,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:13,883 INFO L482 AbstractCegarLoop]: Abstraction has 5192 states and 13798 transitions. [2021-06-05 00:39:13,883 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:13,883 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 13798 transitions. [2021-06-05 00:39:13,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:13,887 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:13,887 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:13,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-06-05 00:39:13,887 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 00:39:13,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:13,887 INFO L82 PathProgramCache]: Analyzing trace with hash -873473791, now seen corresponding path program 58 times [2021-06-05 00:39:13,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:13,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822447837] [2021-06-05 00:39:13,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:14,515 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 00:39:14,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:14,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822447837] [2021-06-05 00:39:14,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822447837] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:14,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:14,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:14,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305218788] [2021-06-05 00:39:14,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:14,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:14,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:14,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:14,516 INFO L87 Difference]: Start difference. First operand 5192 states and 13798 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:17,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:17,206 INFO L93 Difference]: Finished difference Result 6651 states and 17539 transitions. [2021-06-05 00:39:17,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:39:17,206 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:17,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:17,213 INFO L225 Difference]: With dead ends: 6651 [2021-06-05 00:39:17,213 INFO L226 Difference]: Without dead ends: 6442 [2021-06-05 00:39:17,213 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 2196.5ms TimeCoverageRelationStatistics Valid=483, Invalid=2487, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:39:17,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6442 states. [2021-06-05 00:39:17,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6442 to 5528. [2021-06-05 00:39:17,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5528 states, 5527 states have (on average 2.6477293287497736) internal successors, (14634), 5527 states have internal predecessors, (14634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:17,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5528 states to 5528 states and 14634 transitions. [2021-06-05 00:39:17,285 INFO L78 Accepts]: Start accepts. Automaton has 5528 states and 14634 transitions. Word has length 119 [2021-06-05 00:39:17,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:17,285 INFO L482 AbstractCegarLoop]: Abstraction has 5528 states and 14634 transitions. [2021-06-05 00:39:17,285 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:17,285 INFO L276 IsEmpty]: Start isEmpty. Operand 5528 states and 14634 transitions. [2021-06-05 00:39:17,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:17,290 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:17,290 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:17,290 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-06-05 00:39:17,290 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 00:39:17,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:17,290 INFO L82 PathProgramCache]: Analyzing trace with hash -471334139, now seen corresponding path program 59 times [2021-06-05 00:39:17,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:17,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11825164] [2021-06-05 00:39:17,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:17,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:17,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:17,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11825164] [2021-06-05 00:39:17,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11825164] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:17,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:17,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:17,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830636075] [2021-06-05 00:39:17,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:17,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:17,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:17,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:17,905 INFO L87 Difference]: Start difference. First operand 5528 states and 14634 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:20,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:20,515 INFO L93 Difference]: Finished difference Result 6998 states and 18357 transitions. [2021-06-05 00:39:20,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:39:20,516 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:20,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:20,522 INFO L225 Difference]: With dead ends: 6998 [2021-06-05 00:39:20,522 INFO L226 Difference]: Without dead ends: 6522 [2021-06-05 00:39:20,523 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 2219.2ms TimeCoverageRelationStatistics Valid=514, Invalid=2566, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:39:20,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6522 states. [2021-06-05 00:39:20,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6522 to 5600. [2021-06-05 00:39:20,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5600 states, 5599 states have (on average 2.635113413109484) internal successors, (14754), 5599 states have internal predecessors, (14754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:20,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5600 states to 5600 states and 14754 transitions. [2021-06-05 00:39:20,590 INFO L78 Accepts]: Start accepts. Automaton has 5600 states and 14754 transitions. Word has length 119 [2021-06-05 00:39:20,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:20,590 INFO L482 AbstractCegarLoop]: Abstraction has 5600 states and 14754 transitions. [2021-06-05 00:39:20,590 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:20,590 INFO L276 IsEmpty]: Start isEmpty. Operand 5600 states and 14754 transitions. [2021-06-05 00:39:20,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:20,594 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:20,594 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:20,595 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-06-05 00:39:20,595 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 00:39:20,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:20,595 INFO L82 PathProgramCache]: Analyzing trace with hash 737091225, now seen corresponding path program 60 times [2021-06-05 00:39:20,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:20,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082850395] [2021-06-05 00:39:20,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:21,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:21,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:21,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082850395] [2021-06-05 00:39:21,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082850395] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:21,246 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:21,246 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:21,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40926809] [2021-06-05 00:39:21,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:21,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:21,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:21,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:21,247 INFO L87 Difference]: Start difference. First operand 5600 states and 14754 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:23,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:23,966 INFO L93 Difference]: Finished difference Result 6655 states and 17434 transitions. [2021-06-05 00:39:23,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:39:23,966 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:23,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:23,972 INFO L225 Difference]: With dead ends: 6655 [2021-06-05 00:39:23,973 INFO L226 Difference]: Without dead ends: 6114 [2021-06-05 00:39:23,973 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 2318.6ms TimeCoverageRelationStatistics Valid=516, Invalid=2676, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:39:23,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6114 states. [2021-06-05 00:39:24,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6114 to 5192. [2021-06-05 00:39:24,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5191 states have (on average 2.6534386438065884) internal successors, (13774), 5191 states have internal predecessors, (13774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:24,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 13774 transitions. [2021-06-05 00:39:24,038 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 13774 transitions. Word has length 119 [2021-06-05 00:39:24,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:24,038 INFO L482 AbstractCegarLoop]: Abstraction has 5192 states and 13774 transitions. [2021-06-05 00:39:24,039 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:24,039 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 13774 transitions. [2021-06-05 00:39:24,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:24,043 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:24,043 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:24,043 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-06-05 00:39:24,043 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 00:39:24,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:24,044 INFO L82 PathProgramCache]: Analyzing trace with hash -866138687, now seen corresponding path program 61 times [2021-06-05 00:39:24,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:24,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383055090] [2021-06-05 00:39:24,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:24,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:24,675 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:24,675 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383055090] [2021-06-05 00:39:24,675 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383055090] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:24,675 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:24,675 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:24,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345382531] [2021-06-05 00:39:24,675 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:24,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:24,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:24,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:24,676 INFO L87 Difference]: Start difference. First operand 5192 states and 13774 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:26,293 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-05 00:39:27,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:27,300 INFO L93 Difference]: Finished difference Result 6161 states and 16272 transitions. [2021-06-05 00:39:27,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:39:27,300 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:27,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:27,306 INFO L225 Difference]: With dead ends: 6161 [2021-06-05 00:39:27,306 INFO L226 Difference]: Without dead ends: 5924 [2021-06-05 00:39:27,306 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2265.6ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:39:27,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5924 states. [2021-06-05 00:39:27,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5924 to 5168. [2021-06-05 00:39:27,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5168 states, 5167 states have (on average 2.6564737758854267) internal successors, (13726), 5167 states have internal predecessors, (13726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:27,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 13726 transitions. [2021-06-05 00:39:27,367 INFO L78 Accepts]: Start accepts. Automaton has 5168 states and 13726 transitions. Word has length 119 [2021-06-05 00:39:27,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:27,367 INFO L482 AbstractCegarLoop]: Abstraction has 5168 states and 13726 transitions. [2021-06-05 00:39:27,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:27,367 INFO L276 IsEmpty]: Start isEmpty. Operand 5168 states and 13726 transitions. [2021-06-05 00:39:27,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:27,371 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:27,371 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:27,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-06-05 00:39:27,372 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 00:39:27,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:27,372 INFO L82 PathProgramCache]: Analyzing trace with hash -768560355, now seen corresponding path program 62 times [2021-06-05 00:39:27,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:27,372 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120132093] [2021-06-05 00:39:27,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:28,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:28,006 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:28,006 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120132093] [2021-06-05 00:39:28,006 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120132093] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:28,006 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:28,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:28,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805937461] [2021-06-05 00:39:28,007 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:28,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:28,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:28,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:28,007 INFO L87 Difference]: Start difference. First operand 5168 states and 13726 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:30,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:30,530 INFO L93 Difference]: Finished difference Result 7746 states and 20382 transitions. [2021-06-05 00:39:30,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:39:30,531 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:30,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:30,538 INFO L225 Difference]: With dead ends: 7746 [2021-06-05 00:39:30,538 INFO L226 Difference]: Without dead ends: 7537 [2021-06-05 00:39:30,538 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 2157.0ms TimeCoverageRelationStatistics Valid=473, Invalid=2497, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:39:30,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7537 states. [2021-06-05 00:39:30,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7537 to 5492. [2021-06-05 00:39:30,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5492 states, 5491 states have (on average 2.6519759606629028) internal successors, (14562), 5491 states have internal predecessors, (14562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:30,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5492 states to 5492 states and 14562 transitions. [2021-06-05 00:39:30,608 INFO L78 Accepts]: Start accepts. Automaton has 5492 states and 14562 transitions. Word has length 119 [2021-06-05 00:39:30,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:30,608 INFO L482 AbstractCegarLoop]: Abstraction has 5492 states and 14562 transitions. [2021-06-05 00:39:30,608 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:30,608 INFO L276 IsEmpty]: Start isEmpty. Operand 5492 states and 14562 transitions. [2021-06-05 00:39:30,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:30,612 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:30,612 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:30,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-06-05 00:39:30,613 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 00:39:30,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:30,613 INFO L82 PathProgramCache]: Analyzing trace with hash -366420703, now seen corresponding path program 63 times [2021-06-05 00:39:30,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:30,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559375973] [2021-06-05 00:39:30,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:31,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:31,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:31,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559375973] [2021-06-05 00:39:31,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559375973] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:31,210 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:31,210 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:31,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069563537] [2021-06-05 00:39:31,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:31,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:31,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:31,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:31,211 INFO L87 Difference]: Start difference. First operand 5492 states and 14562 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:33,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:33,726 INFO L93 Difference]: Finished difference Result 8093 states and 21200 transitions. [2021-06-05 00:39:33,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:39:33,727 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:33,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:33,734 INFO L225 Difference]: With dead ends: 8093 [2021-06-05 00:39:33,734 INFO L226 Difference]: Without dead ends: 7617 [2021-06-05 00:39:33,734 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 2133.4ms TimeCoverageRelationStatistics Valid=501, Invalid=2579, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:39:33,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7617 states. [2021-06-05 00:39:33,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7617 to 5564. [2021-06-05 00:39:33,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5564 states, 5563 states have (on average 2.63922344058961) internal successors, (14682), 5563 states have internal predecessors, (14682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:33,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 14682 transitions. [2021-06-05 00:39:33,805 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 14682 transitions. Word has length 119 [2021-06-05 00:39:33,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:33,805 INFO L482 AbstractCegarLoop]: Abstraction has 5564 states and 14682 transitions. [2021-06-05 00:39:33,805 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:33,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 14682 transitions. [2021-06-05 00:39:33,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:33,809 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:33,810 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:33,810 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-06-05 00:39:33,810 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 00:39:33,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:33,810 INFO L82 PathProgramCache]: Analyzing trace with hash 842004661, now seen corresponding path program 64 times [2021-06-05 00:39:33,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:33,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206429192] [2021-06-05 00:39:33,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:34,444 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 00:39:34,444 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:34,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206429192] [2021-06-05 00:39:34,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206429192] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:34,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:34,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:34,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317161901] [2021-06-05 00:39:34,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:34,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:34,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:34,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:34,445 INFO L87 Difference]: Start difference. First operand 5564 states and 14682 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:37,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:37,306 INFO L93 Difference]: Finished difference Result 7750 states and 20277 transitions. [2021-06-05 00:39:37,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:39:37,307 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:37,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:37,314 INFO L225 Difference]: With dead ends: 7750 [2021-06-05 00:39:37,314 INFO L226 Difference]: Without dead ends: 7209 [2021-06-05 00:39:37,314 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2444.3ms TimeCoverageRelationStatistics Valid=505, Invalid=2687, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:39:37,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7209 states. [2021-06-05 00:39:37,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7209 to 5156. [2021-06-05 00:39:37,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5155 states have (on average 2.639379243452958) internal successors, (13606), 5155 states have internal predecessors, (13606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:37,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 13606 transitions. [2021-06-05 00:39:37,385 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 13606 transitions. Word has length 119 [2021-06-05 00:39:37,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:37,385 INFO L482 AbstractCegarLoop]: Abstraction has 5156 states and 13606 transitions. [2021-06-05 00:39:37,385 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:37,385 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 13606 transitions. [2021-06-05 00:39:37,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:37,389 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:37,389 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:37,390 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-06-05 00:39:37,390 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 00:39:37,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:37,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1234319467, now seen corresponding path program 65 times [2021-06-05 00:39:37,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:37,390 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263829114] [2021-06-05 00:39:37,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:38,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:38,003 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:38,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263829114] [2021-06-05 00:39:38,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263829114] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:38,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:38,003 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:38,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707939368] [2021-06-05 00:39:38,004 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:38,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:38,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:38,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:38,004 INFO L87 Difference]: Start difference. First operand 5156 states and 13606 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:40,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:40,867 INFO L93 Difference]: Finished difference Result 7566 states and 19673 transitions. [2021-06-05 00:39:40,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:39:40,867 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:40,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:40,874 INFO L225 Difference]: With dead ends: 7566 [2021-06-05 00:39:40,874 INFO L226 Difference]: Without dead ends: 7212 [2021-06-05 00:39:40,875 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 2338.3ms TimeCoverageRelationStatistics Valid=516, Invalid=2790, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:39:40,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7212 states. [2021-06-05 00:39:40,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7212 to 5036. [2021-06-05 00:39:40,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5036 states, 5035 states have (on average 2.654617676266137) internal successors, (13366), 5035 states have internal predecessors, (13366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:40,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5036 states to 5036 states and 13366 transitions. [2021-06-05 00:39:40,941 INFO L78 Accepts]: Start accepts. Automaton has 5036 states and 13366 transitions. Word has length 119 [2021-06-05 00:39:40,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:40,941 INFO L482 AbstractCegarLoop]: Abstraction has 5036 states and 13366 transitions. [2021-06-05 00:39:40,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:40,941 INFO L276 IsEmpty]: Start isEmpty. Operand 5036 states and 13366 transitions. [2021-06-05 00:39:40,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:40,945 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:40,945 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:40,945 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-06-05 00:39:40,945 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 00:39:40,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:40,945 INFO L82 PathProgramCache]: Analyzing trace with hash -2115126477, now seen corresponding path program 66 times [2021-06-05 00:39:40,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:40,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305705823] [2021-06-05 00:39:40,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:41,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:41,580 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:41,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305705823] [2021-06-05 00:39:41,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305705823] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:41,580 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:41,580 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:41,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857748496] [2021-06-05 00:39:41,580 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:41,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:41,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:41,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:41,581 INFO L87 Difference]: Start difference. First operand 5036 states and 13366 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:43,077 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-05 00:39:44,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:44,149 INFO L93 Difference]: Finished difference Result 6111 states and 16108 transitions. [2021-06-05 00:39:44,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:39:44,149 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:44,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:44,155 INFO L225 Difference]: With dead ends: 6111 [2021-06-05 00:39:44,155 INFO L226 Difference]: Without dead ends: 5898 [2021-06-05 00:39:44,155 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2232.1ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:39:44,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5898 states. [2021-06-05 00:39:44,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5898 to 5040. [2021-06-05 00:39:44,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5040 states, 5039 states have (on average 2.653701131176821) internal successors, (13372), 5039 states have internal predecessors, (13372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:44,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5040 states to 5040 states and 13372 transitions. [2021-06-05 00:39:44,213 INFO L78 Accepts]: Start accepts. Automaton has 5040 states and 13372 transitions. Word has length 119 [2021-06-05 00:39:44,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:44,213 INFO L482 AbstractCegarLoop]: Abstraction has 5040 states and 13372 transitions. [2021-06-05 00:39:44,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:44,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5040 states and 13372 transitions. [2021-06-05 00:39:44,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:44,217 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:44,217 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:44,217 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-06-05 00:39:44,217 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 00:39:44,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:44,218 INFO L82 PathProgramCache]: Analyzing trace with hash 35949327, now seen corresponding path program 67 times [2021-06-05 00:39:44,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:44,218 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288315877] [2021-06-05 00:39:44,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:44,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:44,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:44,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288315877] [2021-06-05 00:39:44,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288315877] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:44,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:44,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:44,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240823526] [2021-06-05 00:39:44,834 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:44,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:44,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:44,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:44,835 INFO L87 Difference]: Start difference. First operand 5040 states and 13372 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:47,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:47,614 INFO L93 Difference]: Finished difference Result 6417 states and 16748 transitions. [2021-06-05 00:39:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:39:47,614 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:47,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:47,620 INFO L225 Difference]: With dead ends: 6417 [2021-06-05 00:39:47,620 INFO L226 Difference]: Without dead ends: 6155 [2021-06-05 00:39:47,620 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 2320.6ms TimeCoverageRelationStatistics Valid=555, Invalid=2751, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:39:47,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6155 states. [2021-06-05 00:39:47,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6155 to 5012. [2021-06-05 00:39:47,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5012 states, 5011 states have (on average 2.6577529435242466) internal successors, (13318), 5011 states have internal predecessors, (13318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:47,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5012 states to 5012 states and 13318 transitions. [2021-06-05 00:39:47,681 INFO L78 Accepts]: Start accepts. Automaton has 5012 states and 13318 transitions. Word has length 119 [2021-06-05 00:39:47,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:47,681 INFO L482 AbstractCegarLoop]: Abstraction has 5012 states and 13318 transitions. [2021-06-05 00:39:47,681 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:47,681 INFO L276 IsEmpty]: Start isEmpty. Operand 5012 states and 13318 transitions. [2021-06-05 00:39:47,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:47,685 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:47,685 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:47,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-06-05 00:39:47,685 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 00:39:47,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:47,685 INFO L82 PathProgramCache]: Analyzing trace with hash -2104324993, now seen corresponding path program 68 times [2021-06-05 00:39:47,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:47,685 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399309612] [2021-06-05 00:39:47,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:48,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:48,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:48,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399309612] [2021-06-05 00:39:48,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399309612] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:48,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:48,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:48,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073013478] [2021-06-05 00:39:48,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:48,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:48,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:48,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:48,325 INFO L87 Difference]: Start difference. First operand 5012 states and 13318 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:49,599 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-06-05 00:39:49,801 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 00:39:50,440 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-06-05 00:39:51,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:51,311 INFO L93 Difference]: Finished difference Result 6022 states and 15680 transitions. [2021-06-05 00:39:51,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:39:51,311 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:51,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:51,316 INFO L225 Difference]: With dead ends: 6022 [2021-06-05 00:39:51,316 INFO L226 Difference]: Without dead ends: 5707 [2021-06-05 00:39:51,317 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2532.5ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:39:51,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5707 states. [2021-06-05 00:39:51,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5707 to 5028. [2021-06-05 00:39:51,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5028 states, 5027 states have (on average 2.654863735826537) internal successors, (13346), 5027 states have internal predecessors, (13346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:51,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 13346 transitions. [2021-06-05 00:39:51,376 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 13346 transitions. Word has length 119 [2021-06-05 00:39:51,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:51,376 INFO L482 AbstractCegarLoop]: Abstraction has 5028 states and 13346 transitions. [2021-06-05 00:39:51,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:51,377 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 13346 transitions. [2021-06-05 00:39:51,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:51,381 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:51,381 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:51,381 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-06-05 00:39:51,381 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 00:39:51,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:51,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1584964223, now seen corresponding path program 69 times [2021-06-05 00:39:51,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:51,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001577948] [2021-06-05 00:39:51,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:52,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:52,006 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:52,006 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001577948] [2021-06-05 00:39:52,006 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001577948] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:52,006 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:52,006 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:52,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455769545] [2021-06-05 00:39:52,007 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:52,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:52,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:52,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:52,007 INFO L87 Difference]: Start difference. First operand 5028 states and 13346 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:53,441 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 00:39:54,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:54,500 INFO L93 Difference]: Finished difference Result 5687 states and 14941 transitions. [2021-06-05 00:39:54,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:39:54,501 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:54,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:54,506 INFO L225 Difference]: With dead ends: 5687 [2021-06-05 00:39:54,506 INFO L226 Difference]: Without dead ends: 5474 [2021-06-05 00:39:54,506 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 2155.8ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:39:54,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2021-06-05 00:39:54,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5032. [2021-06-05 00:39:54,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5032 states, 5031 states have (on average 2.653945537666468) internal successors, (13352), 5031 states have internal predecessors, (13352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:54,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5032 states to 5032 states and 13352 transitions. [2021-06-05 00:39:54,563 INFO L78 Accepts]: Start accepts. Automaton has 5032 states and 13352 transitions. Word has length 119 [2021-06-05 00:39:54,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:54,563 INFO L482 AbstractCegarLoop]: Abstraction has 5032 states and 13352 transitions. [2021-06-05 00:39:54,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:54,564 INFO L276 IsEmpty]: Start isEmpty. Operand 5032 states and 13352 transitions. [2021-06-05 00:39:54,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:54,568 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:54,568 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:54,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-06-05 00:39:54,568 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 00:39:54,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:54,568 INFO L82 PathProgramCache]: Analyzing trace with hash 394887581, now seen corresponding path program 70 times [2021-06-05 00:39:54,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:54,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608068995] [2021-06-05 00:39:54,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:54,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:55,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:55,248 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:55,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608068995] [2021-06-05 00:39:55,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608068995] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:55,248 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:55,248 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:55,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363589046] [2021-06-05 00:39:55,248 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:55,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:55,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:55,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:55,249 INFO L87 Difference]: Start difference. First operand 5032 states and 13352 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:57,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:57,931 INFO L93 Difference]: Finished difference Result 5973 states and 15531 transitions. [2021-06-05 00:39:57,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:39:57,931 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:57,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:57,937 INFO L225 Difference]: With dead ends: 5973 [2021-06-05 00:39:57,937 INFO L226 Difference]: Without dead ends: 5651 [2021-06-05 00:39:57,937 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 2339.7ms TimeCoverageRelationStatistics Valid=532, Invalid=2660, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:39:57,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2021-06-05 00:39:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 4944. [2021-06-05 00:39:57,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4944 states, 4943 states have (on average 2.6663969249443658) internal successors, (13180), 4943 states have internal predecessors, (13180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:57,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4944 states to 4944 states and 13180 transitions. [2021-06-05 00:39:57,997 INFO L78 Accepts]: Start accepts. Automaton has 4944 states and 13180 transitions. Word has length 119 [2021-06-05 00:39:57,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:57,997 INFO L482 AbstractCegarLoop]: Abstraction has 4944 states and 13180 transitions. [2021-06-05 00:39:57,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:57,997 INFO L276 IsEmpty]: Start isEmpty. Operand 4944 states and 13180 transitions. [2021-06-05 00:39:58,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:58,001 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:58,001 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:58,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-06-05 00:39:58,001 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 00:39:58,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:58,001 INFO L82 PathProgramCache]: Analyzing trace with hash 605192547, now seen corresponding path program 71 times [2021-06-05 00:39:58,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:58,002 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604089191] [2021-06-05 00:39:58,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:58,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:58,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:58,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604089191] [2021-06-05 00:39:58,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604089191] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:58,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:58,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 00:39:58,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63978431] [2021-06-05 00:39:58,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 00:39:58,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:58,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 00:39:58,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:39:58,237 INFO L87 Difference]: Start difference. First operand 4944 states and 13180 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:58,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:39:58,769 INFO L93 Difference]: Finished difference Result 7703 states and 19760 transitions. [2021-06-05 00:39:58,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 00:39:58,769 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:39:58,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:39:58,776 INFO L225 Difference]: With dead ends: 7703 [2021-06-05 00:39:58,776 INFO L226 Difference]: Without dead ends: 7591 [2021-06-05 00:39:58,776 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 432.9ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-06-05 00:39:58,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7591 states. [2021-06-05 00:39:58,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7591 to 4568. [2021-06-05 00:39:58,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4568 states, 4567 states have (on average 2.6301729800744473) internal successors, (12012), 4567 states have internal predecessors, (12012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:58,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 12012 transitions. [2021-06-05 00:39:58,844 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 12012 transitions. Word has length 119 [2021-06-05 00:39:58,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:39:58,844 INFO L482 AbstractCegarLoop]: Abstraction has 4568 states and 12012 transitions. [2021-06-05 00:39:58,844 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:39:58,844 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 12012 transitions. [2021-06-05 00:39:58,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:39:58,848 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:39:58,848 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:39:58,848 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-06-05 00:39:58,848 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 00:39:58,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:39:58,848 INFO L82 PathProgramCache]: Analyzing trace with hash 33427719, now seen corresponding path program 72 times [2021-06-05 00:39:58,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:39:58,848 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965340494] [2021-06-05 00:39:58,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:39:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:39:59,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:39:59,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:39:59,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965340494] [2021-06-05 00:39:59,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965340494] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:39:59,548 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:39:59,548 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:39:59,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384578974] [2021-06-05 00:39:59,548 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:39:59,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:39:59,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:39:59,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:39:59,549 INFO L87 Difference]: Start difference. First operand 4568 states and 12012 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:01,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:01,700 INFO L93 Difference]: Finished difference Result 5081 states and 13240 transitions. [2021-06-05 00:40:01,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:40:01,701 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:01,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:01,705 INFO L225 Difference]: With dead ends: 5081 [2021-06-05 00:40:01,705 INFO L226 Difference]: Without dead ends: 4852 [2021-06-05 00:40:01,705 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1998.3ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:40:01,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4852 states. [2021-06-05 00:40:01,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4852 to 4568. [2021-06-05 00:40:01,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4568 states, 4567 states have (on average 2.6284212831180205) internal successors, (12004), 4567 states have internal predecessors, (12004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:01,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 12004 transitions. [2021-06-05 00:40:01,758 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 12004 transitions. Word has length 119 [2021-06-05 00:40:01,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:01,759 INFO L482 AbstractCegarLoop]: Abstraction has 4568 states and 12004 transitions. [2021-06-05 00:40:01,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:01,759 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 12004 transitions. [2021-06-05 00:40:01,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:01,763 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:01,763 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:01,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-06-05 00:40:01,763 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 00:40:01,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:01,763 INFO L82 PathProgramCache]: Analyzing trace with hash 29009579, now seen corresponding path program 73 times [2021-06-05 00:40:01,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:01,763 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090348690] [2021-06-05 00:40:01,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:02,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:02,428 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:02,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090348690] [2021-06-05 00:40:02,428 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090348690] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:02,428 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:02,428 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:02,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506106117] [2021-06-05 00:40:02,428 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:02,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:02,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:02,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:02,429 INFO L87 Difference]: Start difference. First operand 4568 states and 12004 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:03,380 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 00:40:04,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:04,785 INFO L93 Difference]: Finished difference Result 5503 states and 14343 transitions. [2021-06-05 00:40:04,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:40:04,786 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:04,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:04,791 INFO L225 Difference]: With dead ends: 5503 [2021-06-05 00:40:04,791 INFO L226 Difference]: Without dead ends: 5294 [2021-06-05 00:40:04,791 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 2073.6ms TimeCoverageRelationStatistics Valid=448, Invalid=2308, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:40:04,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2021-06-05 00:40:04,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 4856. [2021-06-05 00:40:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4856 states, 4855 states have (on average 2.6249227600411946) internal successors, (12744), 4855 states have internal predecessors, (12744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:04,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4856 states to 4856 states and 12744 transitions. [2021-06-05 00:40:04,851 INFO L78 Accepts]: Start accepts. Automaton has 4856 states and 12744 transitions. Word has length 119 [2021-06-05 00:40:04,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:04,852 INFO L482 AbstractCegarLoop]: Abstraction has 4856 states and 12744 transitions. [2021-06-05 00:40:04,852 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:04,852 INFO L276 IsEmpty]: Start isEmpty. Operand 4856 states and 12744 transitions. [2021-06-05 00:40:04,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:04,856 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:04,856 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:04,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-06-05 00:40:04,856 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 00:40:04,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:04,857 INFO L82 PathProgramCache]: Analyzing trace with hash -445696723, now seen corresponding path program 74 times [2021-06-05 00:40:04,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:04,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6906169] [2021-06-05 00:40:04,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:05,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:05,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:05,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6906169] [2021-06-05 00:40:05,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6906169] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:05,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:05,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:05,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824723580] [2021-06-05 00:40:05,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:05,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:05,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:05,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:05,499 INFO L87 Difference]: Start difference. First operand 4856 states and 12744 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:06,456 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 00:40:06,684 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 00:40:08,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:08,110 INFO L93 Difference]: Finished difference Result 5955 states and 15363 transitions. [2021-06-05 00:40:08,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:40:08,111 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:08,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:08,115 INFO L225 Difference]: With dead ends: 5955 [2021-06-05 00:40:08,116 INFO L226 Difference]: Without dead ends: 4966 [2021-06-05 00:40:08,116 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 2245.0ms TimeCoverageRelationStatistics Valid=515, Invalid=2677, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:40:08,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4966 states. [2021-06-05 00:40:08,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4966 to 4520. [2021-06-05 00:40:08,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4520 states, 4519 states have (on average 2.6297853507413143) internal successors, (11884), 4519 states have internal predecessors, (11884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:08,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4520 states to 4520 states and 11884 transitions. [2021-06-05 00:40:08,172 INFO L78 Accepts]: Start accepts. Automaton has 4520 states and 11884 transitions. Word has length 119 [2021-06-05 00:40:08,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:08,172 INFO L482 AbstractCegarLoop]: Abstraction has 4520 states and 11884 transitions. [2021-06-05 00:40:08,172 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:08,172 INFO L276 IsEmpty]: Start isEmpty. Operand 4520 states and 11884 transitions. [2021-06-05 00:40:08,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:08,178 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:08,178 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:08,178 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-06-05 00:40:08,179 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 00:40:08,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:08,179 INFO L82 PathProgramCache]: Analyzing trace with hash -889761385, now seen corresponding path program 75 times [2021-06-05 00:40:08,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:08,179 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922459826] [2021-06-05 00:40:08,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:08,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:08,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:08,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922459826] [2021-06-05 00:40:08,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922459826] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:08,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:08,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:08,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064009220] [2021-06-05 00:40:08,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:08,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:08,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:08,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:08,823 INFO L87 Difference]: Start difference. First operand 4520 states and 11884 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:09,995 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 00:40:10,306 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-06-05 00:40:11,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:11,267 INFO L93 Difference]: Finished difference Result 5015 states and 13085 transitions. [2021-06-05 00:40:11,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:40:11,267 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:11,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:11,272 INFO L225 Difference]: With dead ends: 5015 [2021-06-05 00:40:11,272 INFO L226 Difference]: Without dead ends: 4682 [2021-06-05 00:40:11,272 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 2087.8ms TimeCoverageRelationStatistics Valid=460, Invalid=2296, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:40:11,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4682 states. [2021-06-05 00:40:11,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4682 to 4400. [2021-06-05 00:40:11,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4400 states, 4399 states have (on average 2.6487838145032963) internal successors, (11652), 4399 states have internal predecessors, (11652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:11,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 11652 transitions. [2021-06-05 00:40:11,325 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 11652 transitions. Word has length 119 [2021-06-05 00:40:11,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:11,325 INFO L482 AbstractCegarLoop]: Abstraction has 4400 states and 11652 transitions. [2021-06-05 00:40:11,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:11,325 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 11652 transitions. [2021-06-05 00:40:11,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:11,329 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:11,329 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:11,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-06-05 00:40:11,329 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 00:40:11,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:11,329 INFO L82 PathProgramCache]: Analyzing trace with hash 832813625, now seen corresponding path program 76 times [2021-06-05 00:40:11,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:11,329 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215427367] [2021-06-05 00:40:11,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:11,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:11,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:11,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215427367] [2021-06-05 00:40:11,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215427367] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:11,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:11,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:11,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830924587] [2021-06-05 00:40:11,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:11,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:11,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:11,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:11,956 INFO L87 Difference]: Start difference. First operand 4400 states and 11652 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:13,482 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-06-05 00:40:14,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:14,450 INFO L93 Difference]: Finished difference Result 4961 states and 13012 transitions. [2021-06-05 00:40:14,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:40:14,450 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:14,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:14,454 INFO L225 Difference]: With dead ends: 4961 [2021-06-05 00:40:14,454 INFO L226 Difference]: Without dead ends: 4704 [2021-06-05 00:40:14,454 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2082.9ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:40:14,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2021-06-05 00:40:14,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 4368. [2021-06-05 00:40:14,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4368 states, 4367 states have (on average 2.6544538584840853) internal successors, (11592), 4367 states have internal predecessors, (11592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:14,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4368 states to 4368 states and 11592 transitions. [2021-06-05 00:40:14,503 INFO L78 Accepts]: Start accepts. Automaton has 4368 states and 11592 transitions. Word has length 119 [2021-06-05 00:40:14,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:14,503 INFO L482 AbstractCegarLoop]: Abstraction has 4368 states and 11592 transitions. [2021-06-05 00:40:14,503 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:14,503 INFO L276 IsEmpty]: Start isEmpty. Operand 4368 states and 11592 transitions. [2021-06-05 00:40:14,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:14,507 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:14,507 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:14,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-06-05 00:40:14,507 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 00:40:14,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:14,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1871316353, now seen corresponding path program 77 times [2021-06-05 00:40:14,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:14,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104719928] [2021-06-05 00:40:14,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:14,709 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 00:40:14,709 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:14,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104719928] [2021-06-05 00:40:14,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104719928] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:14,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:14,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 00:40:14,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547799468] [2021-06-05 00:40:14,710 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 00:40:14,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:14,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 00:40:14,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:40:14,710 INFO L87 Difference]: Start difference. First operand 4368 states and 11592 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:14,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:14,973 INFO L93 Difference]: Finished difference Result 7600 states and 19597 transitions. [2021-06-05 00:40:14,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:40:14,974 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:14,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:14,981 INFO L225 Difference]: With dead ends: 7600 [2021-06-05 00:40:14,981 INFO L226 Difference]: Without dead ends: 7600 [2021-06-05 00:40:14,981 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 249.2ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:40:14,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7600 states. [2021-06-05 00:40:15,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7600 to 4596. [2021-06-05 00:40:15,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4596 states, 4595 states have (on average 2.610228509249184) internal successors, (11994), 4595 states have internal predecessors, (11994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:15,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4596 states to 4596 states and 11994 transitions. [2021-06-05 00:40:15,046 INFO L78 Accepts]: Start accepts. Automaton has 4596 states and 11994 transitions. Word has length 119 [2021-06-05 00:40:15,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:15,046 INFO L482 AbstractCegarLoop]: Abstraction has 4596 states and 11994 transitions. [2021-06-05 00:40:15,047 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:15,047 INFO L276 IsEmpty]: Start isEmpty. Operand 4596 states and 11994 transitions. [2021-06-05 00:40:15,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:15,050 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:15,051 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:15,051 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-06-05 00:40:15,051 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 00:40:15,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:15,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1506696061, now seen corresponding path program 78 times [2021-06-05 00:40:15,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:15,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738395425] [2021-06-05 00:40:15,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:15,667 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 00:40:15,667 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:15,667 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738395425] [2021-06-05 00:40:15,667 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738395425] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:15,667 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:15,667 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:15,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189316504] [2021-06-05 00:40:15,668 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:15,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:15,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:15,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:15,668 INFO L87 Difference]: Start difference. First operand 4596 states and 11994 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:16,594 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-06-05 00:40:18,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:18,661 INFO L93 Difference]: Finished difference Result 6838 states and 17606 transitions. [2021-06-05 00:40:18,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:40:18,662 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:18,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:18,668 INFO L225 Difference]: With dead ends: 6838 [2021-06-05 00:40:18,668 INFO L226 Difference]: Without dead ends: 6547 [2021-06-05 00:40:18,668 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2506.8ms TimeCoverageRelationStatistics Valid=571, Invalid=2969, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:40:18,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6547 states. [2021-06-05 00:40:18,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6547 to 5028. [2021-06-05 00:40:18,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5028 states, 5027 states have (on average 2.626218420529143) internal successors, (13202), 5027 states have internal predecessors, (13202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:18,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 13202 transitions. [2021-06-05 00:40:18,736 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 13202 transitions. Word has length 119 [2021-06-05 00:40:18,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:18,736 INFO L482 AbstractCegarLoop]: Abstraction has 5028 states and 13202 transitions. [2021-06-05 00:40:18,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:18,736 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 13202 transitions. [2021-06-05 00:40:18,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:18,741 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:18,741 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:18,741 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-06-05 00:40:18,741 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 00:40:18,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:18,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1104556409, now seen corresponding path program 79 times [2021-06-05 00:40:18,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:18,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339123633] [2021-06-05 00:40:18,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:19,361 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 00:40:19,362 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:19,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339123633] [2021-06-05 00:40:19,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339123633] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:19,362 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:19,362 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:19,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321456221] [2021-06-05 00:40:19,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:19,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:19,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:19,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:19,363 INFO L87 Difference]: Start difference. First operand 5028 states and 13202 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:20,280 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2021-06-05 00:40:20,497 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-06-05 00:40:22,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:22,298 INFO L93 Difference]: Finished difference Result 7400 states and 19144 transitions. [2021-06-05 00:40:22,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:40:22,299 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:22,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:22,305 INFO L225 Difference]: With dead ends: 7400 [2021-06-05 00:40:22,305 INFO L226 Difference]: Without dead ends: 6634 [2021-06-05 00:40:22,305 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 2521.4ms TimeCoverageRelationStatistics Valid=614, Invalid=2926, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:40:22,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6634 states. [2021-06-05 00:40:22,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6634 to 5148. [2021-06-05 00:40:22,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5148 states, 5147 states have (on average 2.606955508062949) internal successors, (13418), 5147 states have internal predecessors, (13418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:22,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5148 states to 5148 states and 13418 transitions. [2021-06-05 00:40:22,372 INFO L78 Accepts]: Start accepts. Automaton has 5148 states and 13418 transitions. Word has length 119 [2021-06-05 00:40:22,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:22,372 INFO L482 AbstractCegarLoop]: Abstraction has 5148 states and 13418 transitions. [2021-06-05 00:40:22,372 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:22,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5148 states and 13418 transitions. [2021-06-05 00:40:22,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:22,376 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:22,377 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:22,377 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-06-05 00:40:22,377 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 00:40:22,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:22,377 INFO L82 PathProgramCache]: Analyzing trace with hash 103868955, now seen corresponding path program 80 times [2021-06-05 00:40:22,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:22,377 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139500421] [2021-06-05 00:40:22,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:23,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:23,054 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:23,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139500421] [2021-06-05 00:40:23,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139500421] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:23,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:23,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:23,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093099381] [2021-06-05 00:40:23,055 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:23,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:23,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:23,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:23,055 INFO L87 Difference]: Start difference. First operand 5148 states and 13418 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:24,244 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-06-05 00:40:26,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:26,229 INFO L93 Difference]: Finished difference Result 6825 states and 17521 transitions. [2021-06-05 00:40:26,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 00:40:26,229 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:26,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:26,235 INFO L225 Difference]: With dead ends: 6825 [2021-06-05 00:40:26,235 INFO L226 Difference]: Without dead ends: 6034 [2021-06-05 00:40:26,235 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2782.8ms TimeCoverageRelationStatistics Valid=635, Invalid=3147, Unknown=0, NotChecked=0, Total=3782 [2021-06-05 00:40:26,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6034 states. [2021-06-05 00:40:26,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6034 to 4548. [2021-06-05 00:40:26,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4548 states, 4547 states have (on average 2.606113921266769) internal successors, (11850), 4547 states have internal predecessors, (11850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:26,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 11850 transitions. [2021-06-05 00:40:26,294 INFO L78 Accepts]: Start accepts. Automaton has 4548 states and 11850 transitions. Word has length 119 [2021-06-05 00:40:26,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:26,294 INFO L482 AbstractCegarLoop]: Abstraction has 4548 states and 11850 transitions. [2021-06-05 00:40:26,294 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:26,294 INFO L276 IsEmpty]: Start isEmpty. Operand 4548 states and 11850 transitions. [2021-06-05 00:40:26,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:26,298 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:26,298 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:26,298 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-06-05 00:40:26,298 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 00:40:26,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:26,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1499360957, now seen corresponding path program 81 times [2021-06-05 00:40:26,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:26,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914395151] [2021-06-05 00:40:26,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:26,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:26,944 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:26,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914395151] [2021-06-05 00:40:26,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914395151] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:26,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:26,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:26,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248362030] [2021-06-05 00:40:26,944 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:26,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:26,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:26,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:26,944 INFO L87 Difference]: Start difference. First operand 4548 states and 11850 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:28,144 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-06-05 00:40:28,564 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-05 00:40:29,513 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-06-05 00:40:30,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:30,174 INFO L93 Difference]: Finished difference Result 5576 states and 14238 transitions. [2021-06-05 00:40:30,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:40:30,174 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:30,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:30,179 INFO L225 Difference]: With dead ends: 5576 [2021-06-05 00:40:30,179 INFO L226 Difference]: Without dead ends: 5257 [2021-06-05 00:40:30,180 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 2707.4ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:40:30,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5257 states. [2021-06-05 00:40:30,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5257 to 4536. [2021-06-05 00:40:30,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4536 states, 4535 states have (on average 2.6063947078280045) internal successors, (11820), 4535 states have internal predecessors, (11820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:30,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4536 states to 4536 states and 11820 transitions. [2021-06-05 00:40:30,239 INFO L78 Accepts]: Start accepts. Automaton has 4536 states and 11820 transitions. Word has length 119 [2021-06-05 00:40:30,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:30,240 INFO L482 AbstractCegarLoop]: Abstraction has 4536 states and 11820 transitions. [2021-06-05 00:40:30,240 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:30,240 INFO L276 IsEmpty]: Start isEmpty. Operand 4536 states and 11820 transitions. [2021-06-05 00:40:30,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:30,243 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:30,244 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:30,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-06-05 00:40:30,244 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 00:40:30,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:30,244 INFO L82 PathProgramCache]: Analyzing trace with hash -795045643, now seen corresponding path program 82 times [2021-06-05 00:40:30,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:30,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188520687] [2021-06-05 00:40:30,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:30,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:30,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:30,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188520687] [2021-06-05 00:40:30,946 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188520687] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:30,946 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:30,946 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:30,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891339943] [2021-06-05 00:40:30,947 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:30,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:30,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:30,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:30,947 INFO L87 Difference]: Start difference. First operand 4536 states and 11820 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:31,933 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-06-05 00:40:32,281 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-06-05 00:40:32,481 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-06-05 00:40:34,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:34,003 INFO L93 Difference]: Finished difference Result 5346 states and 13574 transitions. [2021-06-05 00:40:34,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:40:34,004 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:34,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:34,008 INFO L225 Difference]: With dead ends: 5346 [2021-06-05 00:40:34,008 INFO L226 Difference]: Without dead ends: 4967 [2021-06-05 00:40:34,009 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2642.6ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:40:34,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4967 states. [2021-06-05 00:40:34,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4967 to 4516. [2021-06-05 00:40:34,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 4515 states have (on average 2.613953488372093) internal successors, (11802), 4515 states have internal predecessors, (11802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:34,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 11802 transitions. [2021-06-05 00:40:34,061 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 11802 transitions. Word has length 119 [2021-06-05 00:40:34,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:34,061 INFO L482 AbstractCegarLoop]: Abstraction has 4516 states and 11802 transitions. [2021-06-05 00:40:34,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:34,061 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 11802 transitions. [2021-06-05 00:40:34,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:34,065 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:34,065 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:34,065 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-06-05 00:40:34,065 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 00:40:34,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:34,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1008413389, now seen corresponding path program 83 times [2021-06-05 00:40:34,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:34,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329657710] [2021-06-05 00:40:34,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:34,722 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 00:40:34,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:34,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329657710] [2021-06-05 00:40:34,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329657710] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:34,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:34,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:34,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260392901] [2021-06-05 00:40:34,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:34,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:34,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:34,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:34,723 INFO L87 Difference]: Start difference. First operand 4516 states and 11802 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:36,014 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-06-05 00:40:36,191 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 00:40:37,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:37,682 INFO L93 Difference]: Finished difference Result 5274 states and 13434 transitions. [2021-06-05 00:40:37,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:40:37,682 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:37,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:37,687 INFO L225 Difference]: With dead ends: 5274 [2021-06-05 00:40:37,687 INFO L226 Difference]: Without dead ends: 4955 [2021-06-05 00:40:37,688 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 2554.0ms TimeCoverageRelationStatistics Valid=600, Invalid=2822, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:40:37,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4955 states. [2021-06-05 00:40:37,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4955 to 4528. [2021-06-05 00:40:37,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4528 states, 4527 states have (on average 2.6092334879611223) internal successors, (11812), 4527 states have internal predecessors, (11812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 11812 transitions. [2021-06-05 00:40:37,743 INFO L78 Accepts]: Start accepts. Automaton has 4528 states and 11812 transitions. Word has length 119 [2021-06-05 00:40:37,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:37,743 INFO L482 AbstractCegarLoop]: Abstraction has 4528 states and 11812 transitions. [2021-06-05 00:40:37,743 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:37,743 INFO L276 IsEmpty]: Start isEmpty. Operand 4528 states and 11812 transitions. [2021-06-05 00:40:37,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:37,747 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:37,747 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:37,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-06-05 00:40:37,748 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 00:40:37,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:37,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1003995249, now seen corresponding path program 84 times [2021-06-05 00:40:37,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:37,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762509528] [2021-06-05 00:40:37,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:38,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:38,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:38,376 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762509528] [2021-06-05 00:40:38,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762509528] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:38,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:38,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:38,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33434311] [2021-06-05 00:40:38,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:38,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:38,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:38,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:38,377 INFO L87 Difference]: Start difference. First operand 4528 states and 11812 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:41,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:41,486 INFO L93 Difference]: Finished difference Result 7050 states and 18169 transitions. [2021-06-05 00:40:41,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:40:41,487 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:41,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:41,493 INFO L225 Difference]: With dead ends: 7050 [2021-06-05 00:40:41,493 INFO L226 Difference]: Without dead ends: 6751 [2021-06-05 00:40:41,494 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 2577.1ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:40:41,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6751 states. [2021-06-05 00:40:41,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6751 to 5104. [2021-06-05 00:40:41,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5104 states, 5103 states have (on average 2.625906329610033) internal successors, (13400), 5103 states have internal predecessors, (13400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:41,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5104 states to 5104 states and 13400 transitions. [2021-06-05 00:40:41,559 INFO L78 Accepts]: Start accepts. Automaton has 5104 states and 13400 transitions. Word has length 119 [2021-06-05 00:40:41,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:41,560 INFO L482 AbstractCegarLoop]: Abstraction has 5104 states and 13400 transitions. [2021-06-05 00:40:41,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:41,560 INFO L276 IsEmpty]: Start isEmpty. Operand 5104 states and 13400 transitions. [2021-06-05 00:40:41,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:41,564 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:41,564 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:41,564 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-06-05 00:40:41,564 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 00:40:41,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:41,564 INFO L82 PathProgramCache]: Analyzing trace with hash 529288947, now seen corresponding path program 85 times [2021-06-05 00:40:41,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:41,565 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376646572] [2021-06-05 00:40:41,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:42,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:42,167 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:42,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376646572] [2021-06-05 00:40:42,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376646572] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:42,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:42,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:42,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010061567] [2021-06-05 00:40:42,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:42,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:42,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:42,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:42,168 INFO L87 Difference]: Start difference. First operand 5104 states and 13400 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:43,300 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 00:40:45,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:45,401 INFO L93 Difference]: Finished difference Result 7738 states and 19953 transitions. [2021-06-05 00:40:45,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-05 00:40:45,402 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:45,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:45,408 INFO L225 Difference]: With dead ends: 7738 [2021-06-05 00:40:45,408 INFO L226 Difference]: Without dead ends: 6190 [2021-06-05 00:40:45,409 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 2726.3ms TimeCoverageRelationStatistics Valid=672, Invalid=3360, Unknown=0, NotChecked=0, Total=4032 [2021-06-05 00:40:45,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2021-06-05 00:40:45,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 4576. [2021-06-05 00:40:45,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4576 states, 4575 states have (on average 2.5975956284153003) internal successors, (11884), 4575 states have internal predecessors, (11884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:45,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4576 states to 4576 states and 11884 transitions. [2021-06-05 00:40:45,471 INFO L78 Accepts]: Start accepts. Automaton has 4576 states and 11884 transitions. Word has length 119 [2021-06-05 00:40:45,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:45,471 INFO L482 AbstractCegarLoop]: Abstraction has 4576 states and 11884 transitions. [2021-06-05 00:40:45,471 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:45,471 INFO L276 IsEmpty]: Start isEmpty. Operand 4576 states and 11884 transitions. [2021-06-05 00:40:45,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:45,475 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:45,475 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:45,475 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-06-05 00:40:45,475 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 00:40:45,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:45,475 INFO L82 PathProgramCache]: Analyzing trace with hash 85224285, now seen corresponding path program 86 times [2021-06-05 00:40:45,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:45,476 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456473686] [2021-06-05 00:40:45,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:46,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:46,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:46,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456473686] [2021-06-05 00:40:46,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456473686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:46,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:46,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:46,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192108008] [2021-06-05 00:40:46,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:46,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:46,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:46,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:46,139 INFO L87 Difference]: Start difference. First operand 4576 states and 11884 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:47,280 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 00:40:47,696 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-05 00:40:49,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:49,116 INFO L93 Difference]: Finished difference Result 5684 states and 14488 transitions. [2021-06-05 00:40:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:40:49,116 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:49,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:49,121 INFO L225 Difference]: With dead ends: 5684 [2021-06-05 00:40:49,121 INFO L226 Difference]: Without dead ends: 5261 [2021-06-05 00:40:49,121 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 2551.8ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:40:49,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2021-06-05 00:40:49,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 4456. [2021-06-05 00:40:49,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4456 states, 4455 states have (on average 2.6154882154882153) internal successors, (11652), 4455 states have internal predecessors, (11652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:49,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4456 states to 4456 states and 11652 transitions. [2021-06-05 00:40:49,172 INFO L78 Accepts]: Start accepts. Automaton has 4456 states and 11652 transitions. Word has length 119 [2021-06-05 00:40:49,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:49,172 INFO L482 AbstractCegarLoop]: Abstraction has 4456 states and 11652 transitions. [2021-06-05 00:40:49,173 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:49,173 INFO L276 IsEmpty]: Start isEmpty. Operand 4456 states and 11652 transitions. [2021-06-05 00:40:49,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:49,176 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:49,176 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:49,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-06-05 00:40:49,176 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 00:40:49,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:49,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1329069541, now seen corresponding path program 87 times [2021-06-05 00:40:49,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:49,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319151722] [2021-06-05 00:40:49,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:49,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:49,413 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:49,413 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319151722] [2021-06-05 00:40:49,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319151722] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:49,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:49,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 00:40:49,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747853395] [2021-06-05 00:40:49,414 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 00:40:49,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:49,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 00:40:49,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:40:49,414 INFO L87 Difference]: Start difference. First operand 4456 states and 11652 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:49,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:49,897 INFO L93 Difference]: Finished difference Result 4374 states and 11032 transitions. [2021-06-05 00:40:49,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 00:40:49,898 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:49,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:49,901 INFO L225 Difference]: With dead ends: 4374 [2021-06-05 00:40:49,901 INFO L226 Difference]: Without dead ends: 4262 [2021-06-05 00:40:49,901 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 425.6ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-06-05 00:40:49,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4262 states. [2021-06-05 00:40:49,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4262 to 3600. [2021-06-05 00:40:49,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 3599 states have (on average 2.569046957488191) internal successors, (9246), 3599 states have internal predecessors, (9246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:49,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 9246 transitions. [2021-06-05 00:40:49,940 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 9246 transitions. Word has length 119 [2021-06-05 00:40:49,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:49,940 INFO L482 AbstractCegarLoop]: Abstraction has 3600 states and 9246 transitions. [2021-06-05 00:40:49,940 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:49,940 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 9246 transitions. [2021-06-05 00:40:49,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:49,943 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:49,943 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:49,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-06-05 00:40:49,943 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 00:40:49,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:49,944 INFO L82 PathProgramCache]: Analyzing trace with hash -496809957, now seen corresponding path program 88 times [2021-06-05 00:40:49,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:49,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440420069] [2021-06-05 00:40:49,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:50,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:50,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:50,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440420069] [2021-06-05 00:40:50,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440420069] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:50,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:50,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:50,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956756628] [2021-06-05 00:40:50,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:50,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:50,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:50,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:50,555 INFO L87 Difference]: Start difference. First operand 3600 states and 9246 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:51,896 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 00:40:52,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:52,752 INFO L93 Difference]: Finished difference Result 3873 states and 9766 transitions. [2021-06-05 00:40:52,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:40:52,752 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:52,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:52,756 INFO L225 Difference]: With dead ends: 3873 [2021-06-05 00:40:52,756 INFO L226 Difference]: Without dead ends: 3648 [2021-06-05 00:40:52,757 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1941.0ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:40:52,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2021-06-05 00:40:52,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3620. [2021-06-05 00:40:52,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3619 states have (on average 2.564244266371926) internal successors, (9280), 3619 states have internal predecessors, (9280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:52,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 9280 transitions. [2021-06-05 00:40:52,796 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 9280 transitions. Word has length 119 [2021-06-05 00:40:52,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:52,796 INFO L482 AbstractCegarLoop]: Abstraction has 3620 states and 9280 transitions. [2021-06-05 00:40:52,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:52,797 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 9280 transitions. [2021-06-05 00:40:52,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:52,800 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:52,800 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:52,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-06-05 00:40:52,800 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 00:40:52,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:52,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1625668367, now seen corresponding path program 89 times [2021-06-05 00:40:52,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:52,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482478351] [2021-06-05 00:40:52,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:53,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:53,426 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:53,426 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482478351] [2021-06-05 00:40:53,426 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482478351] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:53,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:53,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:53,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273884479] [2021-06-05 00:40:53,427 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:53,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:53,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:53,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:53,427 INFO L87 Difference]: Start difference. First operand 3620 states and 9280 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:55,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:55,709 INFO L93 Difference]: Finished difference Result 3971 states and 9972 transitions. [2021-06-05 00:40:55,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:40:55,709 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:55,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:55,713 INFO L225 Difference]: With dead ends: 3971 [2021-06-05 00:40:55,713 INFO L226 Difference]: Without dead ends: 3737 [2021-06-05 00:40:55,713 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 2017.4ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:40:55,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3737 states. [2021-06-05 00:40:55,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3737 to 3624. [2021-06-05 00:40:55,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3623 states have (on average 2.5630692796025394) internal successors, (9286), 3623 states have internal predecessors, (9286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:55,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 9286 transitions. [2021-06-05 00:40:55,755 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 9286 transitions. Word has length 119 [2021-06-05 00:40:55,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:55,755 INFO L482 AbstractCegarLoop]: Abstraction has 3624 states and 9286 transitions. [2021-06-05 00:40:55,755 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:55,755 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 9286 transitions. [2021-06-05 00:40:55,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:55,758 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:55,758 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:55,758 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-06-05 00:40:55,758 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 00:40:55,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:55,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1211899971, now seen corresponding path program 90 times [2021-06-05 00:40:55,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:55,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978091176] [2021-06-05 00:40:55,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:40:56,428 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:56,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978091176] [2021-06-05 00:40:56,428 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978091176] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:56,428 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:56,428 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:56,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696977619] [2021-06-05 00:40:56,428 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:56,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:56,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:56,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:56,429 INFO L87 Difference]: Start difference. First operand 3624 states and 9286 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:57,745 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 00:40:58,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:40:58,612 INFO L93 Difference]: Finished difference Result 3853 states and 9720 transitions. [2021-06-05 00:40:58,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:40:58,613 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:40:58,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:40:58,616 INFO L225 Difference]: With dead ends: 3853 [2021-06-05 00:40:58,616 INFO L226 Difference]: Without dead ends: 3624 [2021-06-05 00:40:58,616 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2008.9ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:40:58,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3624 states. [2021-06-05 00:40:58,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3624 to 3608. [2021-06-05 00:40:58,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3608 states, 3607 states have (on average 2.5650124757416135) internal successors, (9252), 3607 states have internal predecessors, (9252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:58,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3608 states to 3608 states and 9252 transitions. [2021-06-05 00:40:58,653 INFO L78 Accepts]: Start accepts. Automaton has 3608 states and 9252 transitions. Word has length 119 [2021-06-05 00:40:58,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:40:58,654 INFO L482 AbstractCegarLoop]: Abstraction has 3608 states and 9252 transitions. [2021-06-05 00:40:58,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:40:58,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3608 states and 9252 transitions. [2021-06-05 00:40:58,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:40:58,656 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:40:58,657 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:40:58,657 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-06-05 00:40:58,657 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 00:40:58,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:40:58,657 INFO L82 PathProgramCache]: Analyzing trace with hash -830903603, now seen corresponding path program 91 times [2021-06-05 00:40:58,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:40:58,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455827291] [2021-06-05 00:40:58,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:40:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:40:59,239 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 00:40:59,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:40:59,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455827291] [2021-06-05 00:40:59,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455827291] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:40:59,240 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:40:59,240 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:40:59,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469376615] [2021-06-05 00:40:59,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:40:59,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:40:59,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:40:59,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:40:59,241 INFO L87 Difference]: Start difference. First operand 3608 states and 9252 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:01,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:01,512 INFO L93 Difference]: Finished difference Result 4573 states and 11573 transitions. [2021-06-05 00:41:01,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:41:01,513 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:01,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:01,517 INFO L225 Difference]: With dead ends: 4573 [2021-06-05 00:41:01,517 INFO L226 Difference]: Without dead ends: 4364 [2021-06-05 00:41:01,517 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 1965.8ms TimeCoverageRelationStatistics Valid=463, Invalid=2399, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:41:01,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4364 states. [2021-06-05 00:41:01,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4364 to 3980. [2021-06-05 00:41:01,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 3979 states have (on average 2.5594370444835386) internal successors, (10184), 3979 states have internal predecessors, (10184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:01,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 10184 transitions. [2021-06-05 00:41:01,562 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 10184 transitions. Word has length 119 [2021-06-05 00:41:01,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:01,562 INFO L482 AbstractCegarLoop]: Abstraction has 3980 states and 10184 transitions. [2021-06-05 00:41:01,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:01,562 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 10184 transitions. [2021-06-05 00:41:01,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:01,565 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:01,565 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:01,565 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-06-05 00:41:01,565 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 00:41:01,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:01,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1305609905, now seen corresponding path program 92 times [2021-06-05 00:41:01,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:01,566 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520040113] [2021-06-05 00:41:01,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:02,179 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 00:41:02,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:02,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520040113] [2021-06-05 00:41:02,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520040113] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:02,180 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:02,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:02,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58790379] [2021-06-05 00:41:02,180 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:02,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:02,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:02,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:02,181 INFO L87 Difference]: Start difference. First operand 3980 states and 10184 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:03,813 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-06-05 00:41:04,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:04,999 INFO L93 Difference]: Finished difference Result 5025 states and 12593 transitions. [2021-06-05 00:41:04,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:41:04,999 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:05,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:05,004 INFO L225 Difference]: With dead ends: 5025 [2021-06-05 00:41:05,004 INFO L226 Difference]: Without dead ends: 4036 [2021-06-05 00:41:05,005 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2376.4ms TimeCoverageRelationStatistics Valid=524, Invalid=2782, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:41:05,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4036 states. [2021-06-05 00:41:05,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4036 to 3644. [2021-06-05 00:41:05,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3644 states, 3643 states have (on average 2.5330771342300302) internal successors, (9228), 3643 states have internal predecessors, (9228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:05,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 9228 transitions. [2021-06-05 00:41:05,047 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 9228 transitions. Word has length 119 [2021-06-05 00:41:05,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:05,047 INFO L482 AbstractCegarLoop]: Abstraction has 3644 states and 9228 transitions. [2021-06-05 00:41:05,047 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:05,047 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 9228 transitions. [2021-06-05 00:41:05,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:05,050 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:05,050 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:05,050 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-06-05 00:41:05,050 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 00:41:05,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:05,051 INFO L82 PathProgramCache]: Analyzing trace with hash -70632339, now seen corresponding path program 93 times [2021-06-05 00:41:05,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:05,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787634864] [2021-06-05 00:41:05,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:05,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:05,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:05,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787634864] [2021-06-05 00:41:05,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787634864] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:05,673 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:05,673 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:05,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741420992] [2021-06-05 00:41:05,673 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:05,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:05,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:05,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:05,674 INFO L87 Difference]: Start difference. First operand 3644 states and 9228 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:08,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:08,320 INFO L93 Difference]: Finished difference Result 4193 states and 10452 transitions. [2021-06-05 00:41:08,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:41:08,320 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:08,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:08,323 INFO L225 Difference]: With dead ends: 4193 [2021-06-05 00:41:08,323 INFO L226 Difference]: Without dead ends: 3839 [2021-06-05 00:41:08,323 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 2188.7ms TimeCoverageRelationStatistics Valid=460, Invalid=2402, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:41:08,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2021-06-05 00:41:08,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 3524. [2021-06-05 00:41:08,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 3523 states have (on average 2.551234743116662) internal successors, (8988), 3523 states have internal predecessors, (8988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:08,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 8988 transitions. [2021-06-05 00:41:08,362 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 8988 transitions. Word has length 119 [2021-06-05 00:41:08,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:08,362 INFO L482 AbstractCegarLoop]: Abstraction has 3524 states and 8988 transitions. [2021-06-05 00:41:08,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:08,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 8988 transitions. [2021-06-05 00:41:08,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:08,365 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:08,365 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:08,365 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-06-05 00:41:08,365 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 00:41:08,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:08,365 INFO L82 PathProgramCache]: Analyzing trace with hash 969626369, now seen corresponding path program 94 times [2021-06-05 00:41:08,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:08,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014542631] [2021-06-05 00:41:08,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:08,963 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 00:41:08,964 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:08,964 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014542631] [2021-06-05 00:41:08,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014542631] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:08,964 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:08,964 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:08,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919025368] [2021-06-05 00:41:08,964 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:08,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:08,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:08,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:08,965 INFO L87 Difference]: Start difference. First operand 3524 states and 8988 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:11,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:11,546 INFO L93 Difference]: Finished difference Result 4011 states and 10073 transitions. [2021-06-05 00:41:11,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:41:11,546 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:11,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:11,549 INFO L225 Difference]: With dead ends: 4011 [2021-06-05 00:41:11,549 INFO L226 Difference]: Without dead ends: 3802 [2021-06-05 00:41:11,549 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 2160.9ms TimeCoverageRelationStatistics Valid=485, Invalid=2485, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:41:11,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2021-06-05 00:41:11,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3668. [2021-06-05 00:41:11,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3667 states have (on average 2.548131988001091) internal successors, (9344), 3667 states have internal predecessors, (9344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:11,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 9344 transitions. [2021-06-05 00:41:11,587 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 9344 transitions. Word has length 119 [2021-06-05 00:41:11,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:11,587 INFO L482 AbstractCegarLoop]: Abstraction has 3668 states and 9344 transitions. [2021-06-05 00:41:11,587 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:11,587 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 9344 transitions. [2021-06-05 00:41:11,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:11,590 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:11,590 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:11,590 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-06-05 00:41:11,591 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 00:41:11,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:11,591 INFO L82 PathProgramCache]: Analyzing trace with hash 494920067, now seen corresponding path program 95 times [2021-06-05 00:41:11,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:11,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263884754] [2021-06-05 00:41:11,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:12,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:12,214 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:12,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263884754] [2021-06-05 00:41:12,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263884754] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:12,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:12,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:12,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401677201] [2021-06-05 00:41:12,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:12,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:12,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:12,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:12,215 INFO L87 Difference]: Start difference. First operand 3668 states and 9344 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:13,393 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 00:41:14,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:14,977 INFO L93 Difference]: Finished difference Result 4283 states and 10649 transitions. [2021-06-05 00:41:14,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:41:14,978 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:14,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:14,980 INFO L225 Difference]: With dead ends: 4283 [2021-06-05 00:41:14,980 INFO L226 Difference]: Without dead ends: 3294 [2021-06-05 00:41:14,980 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 2374.6ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:41:14,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2021-06-05 00:41:15,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3116. [2021-06-05 00:41:15,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 2.5502407704654897) internal successors, (7944), 3115 states have internal predecessors, (7944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:15,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 7944 transitions. [2021-06-05 00:41:15,012 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 7944 transitions. Word has length 119 [2021-06-05 00:41:15,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:15,012 INFO L482 AbstractCegarLoop]: Abstraction has 3116 states and 7944 transitions. [2021-06-05 00:41:15,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:15,012 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 7944 transitions. [2021-06-05 00:41:15,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:15,015 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:15,015 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:15,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-06-05 00:41:15,015 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 00:41:15,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:15,015 INFO L82 PathProgramCache]: Analyzing trace with hash 50855405, now seen corresponding path program 96 times [2021-06-05 00:41:15,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:15,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568227601] [2021-06-05 00:41:15,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:15,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:15,628 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:15,628 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568227601] [2021-06-05 00:41:15,628 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568227601] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:15,628 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:15,628 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:15,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342333604] [2021-06-05 00:41:15,628 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:15,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:15,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:15,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:15,629 INFO L87 Difference]: Start difference. First operand 3116 states and 7944 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:17,068 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-05 00:41:18,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:18,111 INFO L93 Difference]: Finished difference Result 3337 states and 8362 transitions. [2021-06-05 00:41:18,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:41:18,111 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:18,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:18,114 INFO L225 Difference]: With dead ends: 3337 [2021-06-05 00:41:18,114 INFO L226 Difference]: Without dead ends: 3100 [2021-06-05 00:41:18,114 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 2145.0ms TimeCoverageRelationStatistics Valid=480, Invalid=2382, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:41:18,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3100 states. [2021-06-05 00:41:18,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3100 to 3092. [2021-06-05 00:41:18,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3092 states, 3091 states have (on average 2.554513102555807) internal successors, (7896), 3091 states have internal predecessors, (7896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:18,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3092 states to 3092 states and 7896 transitions. [2021-06-05 00:41:18,147 INFO L78 Accepts]: Start accepts. Automaton has 3092 states and 7896 transitions. Word has length 119 [2021-06-05 00:41:18,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:18,148 INFO L482 AbstractCegarLoop]: Abstraction has 3092 states and 7896 transitions. [2021-06-05 00:41:18,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:18,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3092 states and 7896 transitions. [2021-06-05 00:41:18,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:18,150 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:18,150 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:18,150 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-06-05 00:41:18,150 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 00:41:18,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:18,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1512238849, now seen corresponding path program 97 times [2021-06-05 00:41:18,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:18,151 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042122063] [2021-06-05 00:41:18,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:18,793 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 00:41:18,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:18,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042122063] [2021-06-05 00:41:18,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042122063] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:18,794 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:18,794 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:18,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533247756] [2021-06-05 00:41:18,794 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:18,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:18,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:18,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:18,795 INFO L87 Difference]: Start difference. First operand 3092 states and 7896 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:21,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:21,313 INFO L93 Difference]: Finished difference Result 3427 states and 8560 transitions. [2021-06-05 00:41:21,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:41:21,313 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:21,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:21,316 INFO L225 Difference]: With dead ends: 3427 [2021-06-05 00:41:21,316 INFO L226 Difference]: Without dead ends: 3193 [2021-06-05 00:41:21,316 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 2172.2ms TimeCoverageRelationStatistics Valid=467, Invalid=2395, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:41:21,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2021-06-05 00:41:21,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 3096. [2021-06-05 00:41:21,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3096 states, 3095 states have (on average 2.553150242326333) internal successors, (7902), 3095 states have internal predecessors, (7902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:21,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 7902 transitions. [2021-06-05 00:41:21,350 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 7902 transitions. Word has length 119 [2021-06-05 00:41:21,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:21,350 INFO L482 AbstractCegarLoop]: Abstraction has 3096 states and 7902 transitions. [2021-06-05 00:41:21,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:21,351 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 7902 transitions. [2021-06-05 00:41:21,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:21,353 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:21,353 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:21,353 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-06-05 00:41:21,353 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 00:41:21,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:21,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1570320461, now seen corresponding path program 98 times [2021-06-05 00:41:21,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:21,354 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584648671] [2021-06-05 00:41:21,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:21,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:21,971 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:21,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584648671] [2021-06-05 00:41:21,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584648671] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:21,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:21,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:21,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440873929] [2021-06-05 00:41:21,972 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:21,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:21,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:21,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:21,972 INFO L87 Difference]: Start difference. First operand 3096 states and 7902 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:23,378 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-05 00:41:24,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:24,325 INFO L93 Difference]: Finished difference Result 3309 states and 8308 transitions. [2021-06-05 00:41:24,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:41:24,326 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:24,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:24,329 INFO L225 Difference]: With dead ends: 3309 [2021-06-05 00:41:24,329 INFO L226 Difference]: Without dead ends: 2996 [2021-06-05 00:41:24,329 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 2102.3ms TimeCoverageRelationStatistics Valid=462, Invalid=2294, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:41:24,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2996 states. [2021-06-05 00:41:24,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2996 to 2996. [2021-06-05 00:41:24,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2996 states, 2995 states have (on average 2.5742904841402336) internal successors, (7710), 2995 states have internal predecessors, (7710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:24,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2996 states to 2996 states and 7710 transitions. [2021-06-05 00:41:24,361 INFO L78 Accepts]: Start accepts. Automaton has 2996 states and 7710 transitions. Word has length 119 [2021-06-05 00:41:24,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:24,361 INFO L482 AbstractCegarLoop]: Abstraction has 2996 states and 7710 transitions. [2021-06-05 00:41:24,361 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:24,361 INFO L276 IsEmpty]: Start isEmpty. Operand 2996 states and 7710 transitions. [2021-06-05 00:41:24,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:24,363 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:24,363 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:24,363 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-06-05 00:41:24,363 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 00:41:24,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:24,364 INFO L82 PathProgramCache]: Analyzing trace with hash 2039112753, now seen corresponding path program 99 times [2021-06-05 00:41:24,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:24,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644336641] [2021-06-05 00:41:24,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:24,972 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 00:41:24,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:24,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644336641] [2021-06-05 00:41:24,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644336641] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:24,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:24,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:24,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070427510] [2021-06-05 00:41:24,973 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:24,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:24,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:24,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:24,974 INFO L87 Difference]: Start difference. First operand 2996 states and 7710 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:26,219 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-06-05 00:41:26,432 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-06-05 00:41:27,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:27,271 INFO L93 Difference]: Finished difference Result 3221 states and 8141 transitions. [2021-06-05 00:41:27,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:41:27,271 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:27,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:27,274 INFO L225 Difference]: With dead ends: 3221 [2021-06-05 00:41:27,274 INFO L226 Difference]: Without dead ends: 2964 [2021-06-05 00:41:27,274 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 2008.5ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:41:27,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2021-06-05 00:41:27,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2964. [2021-06-05 00:41:27,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2964 states, 2963 states have (on average 2.5818427269659128) internal successors, (7650), 2963 states have internal predecessors, (7650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:27,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 7650 transitions. [2021-06-05 00:41:27,304 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 7650 transitions. Word has length 119 [2021-06-05 00:41:27,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:27,304 INFO L482 AbstractCegarLoop]: Abstraction has 2964 states and 7650 transitions. [2021-06-05 00:41:27,305 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:27,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 7650 transitions. [2021-06-05 00:41:27,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:27,307 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:27,307 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:27,307 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-06-05 00:41:27,307 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 00:41:27,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:27,307 INFO L82 PathProgramCache]: Analyzing trace with hash -144760637, now seen corresponding path program 100 times [2021-06-05 00:41:27,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:27,307 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424034189] [2021-06-05 00:41:27,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:27,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:27,941 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:27,941 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424034189] [2021-06-05 00:41:27,941 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424034189] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:27,941 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:27,941 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:27,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551441611] [2021-06-05 00:41:27,941 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:27,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:27,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:27,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:27,942 INFO L87 Difference]: Start difference. First operand 2964 states and 7650 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:29,120 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 00:41:29,326 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-05 00:41:30,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:30,206 INFO L93 Difference]: Finished difference Result 3277 states and 8257 transitions. [2021-06-05 00:41:30,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:41:30,206 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:30,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:30,209 INFO L225 Difference]: With dead ends: 3277 [2021-06-05 00:41:30,209 INFO L226 Difference]: Without dead ends: 3052 [2021-06-05 00:41:30,209 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 2031.0ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:41:30,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3052 states. [2021-06-05 00:41:30,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3052 to 2988. [2021-06-05 00:41:30,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2987 states have (on average 2.575828590559089) internal successors, (7694), 2987 states have internal predecessors, (7694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:30,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 7694 transitions. [2021-06-05 00:41:30,239 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 7694 transitions. Word has length 119 [2021-06-05 00:41:30,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:30,239 INFO L482 AbstractCegarLoop]: Abstraction has 2988 states and 7694 transitions. [2021-06-05 00:41:30,239 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:30,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 7694 transitions. [2021-06-05 00:41:30,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:30,241 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:30,241 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:30,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-06-05 00:41:30,241 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 00:41:30,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:30,242 INFO L82 PathProgramCache]: Analyzing trace with hash 374600133, now seen corresponding path program 101 times [2021-06-05 00:41:30,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:30,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602248606] [2021-06-05 00:41:30,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:30,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:30,884 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:30,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602248606] [2021-06-05 00:41:30,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602248606] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:30,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:30,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:30,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258033590] [2021-06-05 00:41:30,884 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:30,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:30,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:30,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:30,885 INFO L87 Difference]: Start difference. First operand 2988 states and 7694 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:32,271 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 00:41:33,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:33,358 INFO L93 Difference]: Finished difference Result 3257 states and 8215 transitions. [2021-06-05 00:41:33,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:41:33,358 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:33,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:33,360 INFO L225 Difference]: With dead ends: 3257 [2021-06-05 00:41:33,360 INFO L226 Difference]: Without dead ends: 3044 [2021-06-05 00:41:33,361 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 2233.1ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:41:33,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2021-06-05 00:41:33,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 2992. [2021-06-05 00:41:33,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2992 states, 2991 states have (on average 2.5743898361751922) internal successors, (7700), 2991 states have internal predecessors, (7700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:33,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 7700 transitions. [2021-06-05 00:41:33,389 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 7700 transitions. Word has length 119 [2021-06-05 00:41:33,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:33,390 INFO L482 AbstractCegarLoop]: Abstraction has 2992 states and 7700 transitions. [2021-06-05 00:41:33,390 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:33,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 7700 transitions. [2021-06-05 00:41:33,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:33,392 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:33,392 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:33,392 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-06-05 00:41:33,392 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 00:41:33,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:33,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1940515359, now seen corresponding path program 102 times [2021-06-05 00:41:33,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:33,392 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339581612] [2021-06-05 00:41:33,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:34,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:34,054 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:34,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339581612] [2021-06-05 00:41:34,054 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339581612] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:34,054 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:34,054 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:34,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910525667] [2021-06-05 00:41:34,055 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:34,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:34,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:34,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:34,055 INFO L87 Difference]: Start difference. First operand 2992 states and 7700 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:36,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:36,427 INFO L93 Difference]: Finished difference Result 3359 states and 8437 transitions. [2021-06-05 00:41:36,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:41:36,427 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:36,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:36,429 INFO L225 Difference]: With dead ends: 3359 [2021-06-05 00:41:36,429 INFO L226 Difference]: Without dead ends: 3109 [2021-06-05 00:41:36,430 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 2160.0ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:41:36,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2021-06-05 00:41:36,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2976. [2021-06-05 00:41:36,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2975 states have (on average 2.5788235294117645) internal successors, (7672), 2975 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:36,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 7672 transitions. [2021-06-05 00:41:36,459 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 7672 transitions. Word has length 119 [2021-06-05 00:41:36,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:36,460 INFO L482 AbstractCegarLoop]: Abstraction has 2976 states and 7672 transitions. [2021-06-05 00:41:36,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:36,460 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 7672 transitions. [2021-06-05 00:41:36,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:36,462 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:36,462 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:36,462 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-06-05 00:41:36,462 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 00:41:36,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:36,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1899470451, now seen corresponding path program 103 times [2021-06-05 00:41:36,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:36,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551464055] [2021-06-05 00:41:36,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:37,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:37,089 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:37,089 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551464055] [2021-06-05 00:41:37,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551464055] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:37,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:37,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:37,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702321764] [2021-06-05 00:41:37,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:37,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:37,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:37,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:37,090 INFO L87 Difference]: Start difference. First operand 2976 states and 7672 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:38,431 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-06-05 00:41:39,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:39,300 INFO L93 Difference]: Finished difference Result 3241 states and 8172 transitions. [2021-06-05 00:41:39,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:41:39,300 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:39,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:39,303 INFO L225 Difference]: With dead ends: 3241 [2021-06-05 00:41:39,303 INFO L226 Difference]: Without dead ends: 3008 [2021-06-05 00:41:39,303 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1979.2ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:41:39,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2021-06-05 00:41:39,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2968. [2021-06-05 00:41:39,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2968 states, 2967 states have (on average 2.5803842264914056) internal successors, (7656), 2967 states have internal predecessors, (7656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:39,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 7656 transitions. [2021-06-05 00:41:39,335 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 7656 transitions. Word has length 119 [2021-06-05 00:41:39,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:39,336 INFO L482 AbstractCegarLoop]: Abstraction has 2968 states and 7656 transitions. [2021-06-05 00:41:39,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:39,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 7656 transitions. [2021-06-05 00:41:39,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:39,338 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:39,338 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:39,338 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-06-05 00:41:39,338 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 00:41:39,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:39,339 INFO L82 PathProgramCache]: Analyzing trace with hash 167118335, now seen corresponding path program 104 times [2021-06-05 00:41:39,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:39,339 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720199211] [2021-06-05 00:41:39,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:39,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:39,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:39,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720199211] [2021-06-05 00:41:39,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720199211] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:39,970 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:39,970 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:39,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695009684] [2021-06-05 00:41:39,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:39,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:39,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:39,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:39,971 INFO L87 Difference]: Start difference. First operand 2968 states and 7656 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:41,172 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-05 00:41:41,380 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-06-05 00:41:42,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:42,278 INFO L93 Difference]: Finished difference Result 3233 states and 8171 transitions. [2021-06-05 00:41:42,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:41:42,278 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:42,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:42,281 INFO L225 Difference]: With dead ends: 3233 [2021-06-05 00:41:42,281 INFO L226 Difference]: Without dead ends: 3008 [2021-06-05 00:41:42,281 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 2036.7ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:41:42,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2021-06-05 00:41:42,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2976. [2021-06-05 00:41:42,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2975 states have (on average 2.5788235294117645) internal successors, (7672), 2975 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:42,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 7672 transitions. [2021-06-05 00:41:42,313 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 7672 transitions. Word has length 119 [2021-06-05 00:41:42,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:42,313 INFO L482 AbstractCegarLoop]: Abstraction has 2976 states and 7672 transitions. [2021-06-05 00:41:42,313 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:42,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 7672 transitions. [2021-06-05 00:41:42,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:42,315 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:42,315 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:42,315 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-06-05 00:41:42,315 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 00:41:42,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:42,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1293526919, now seen corresponding path program 105 times [2021-06-05 00:41:42,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:42,316 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920140146] [2021-06-05 00:41:42,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:42,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:42,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:42,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920140146] [2021-06-05 00:41:42,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920140146] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:42,966 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:42,966 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:42,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046459946] [2021-06-05 00:41:42,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:42,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:42,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:42,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:42,966 INFO L87 Difference]: Start difference. First operand 2976 states and 7672 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:44,076 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-06-05 00:41:44,254 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 00:41:45,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:45,086 INFO L93 Difference]: Finished difference Result 3221 states and 8142 transitions. [2021-06-05 00:41:45,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:41:45,087 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:45,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:45,089 INFO L225 Difference]: With dead ends: 3221 [2021-06-05 00:41:45,089 INFO L226 Difference]: Without dead ends: 2992 [2021-06-05 00:41:45,090 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1964.1ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:41:45,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2021-06-05 00:41:45,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 2984. [2021-06-05 00:41:45,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2984 states, 2983 states have (on average 2.5745893395910158) internal successors, (7680), 2983 states have internal predecessors, (7680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:45,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2984 states to 2984 states and 7680 transitions. [2021-06-05 00:41:45,120 INFO L78 Accepts]: Start accepts. Automaton has 2984 states and 7680 transitions. Word has length 119 [2021-06-05 00:41:45,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:45,120 INFO L482 AbstractCegarLoop]: Abstraction has 2984 states and 7680 transitions. [2021-06-05 00:41:45,120 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:45,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2984 states and 7680 transitions. [2021-06-05 00:41:45,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:45,123 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:45,123 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:45,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-06-05 00:41:45,123 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 00:41:45,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:45,123 INFO L82 PathProgramCache]: Analyzing trace with hash 636827677, now seen corresponding path program 106 times [2021-06-05 00:41:45,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:45,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956084647] [2021-06-05 00:41:45,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:45,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:45,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:45,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956084647] [2021-06-05 00:41:45,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956084647] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:45,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:45,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:45,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463366594] [2021-06-05 00:41:45,726 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:45,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:45,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:45,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:45,726 INFO L87 Difference]: Start difference. First operand 2984 states and 7680 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:47,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:47,986 INFO L93 Difference]: Finished difference Result 3319 states and 8344 transitions. [2021-06-05 00:41:47,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:41:47,987 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:47,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:47,989 INFO L225 Difference]: With dead ends: 3319 [2021-06-05 00:41:47,989 INFO L226 Difference]: Without dead ends: 3085 [2021-06-05 00:41:47,990 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 1980.2ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:41:47,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2021-06-05 00:41:48,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 2988. [2021-06-05 00:41:48,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2987 states have (on average 2.573150318044861) internal successors, (7686), 2987 states have internal predecessors, (7686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 7686 transitions. [2021-06-05 00:41:48,020 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 7686 transitions. Word has length 119 [2021-06-05 00:41:48,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:48,021 INFO L482 AbstractCegarLoop]: Abstraction has 2988 states and 7686 transitions. [2021-06-05 00:41:48,021 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:48,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 7686 transitions. [2021-06-05 00:41:48,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:48,023 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:48,023 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:48,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-06-05 00:41:48,023 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 00:41:48,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:48,023 INFO L82 PathProgramCache]: Analyzing trace with hash 223059281, now seen corresponding path program 107 times [2021-06-05 00:41:48,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:48,023 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726737962] [2021-06-05 00:41:48,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:48,647 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 00:41:48,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:48,648 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726737962] [2021-06-05 00:41:48,648 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726737962] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:48,648 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:48,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:48,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728238215] [2021-06-05 00:41:48,648 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:48,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:48,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:48,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:48,648 INFO L87 Difference]: Start difference. First operand 2988 states and 7686 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:49,943 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 00:41:50,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:50,844 INFO L93 Difference]: Finished difference Result 3201 states and 8092 transitions. [2021-06-05 00:41:50,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:41:50,845 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:50,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:50,847 INFO L225 Difference]: With dead ends: 3201 [2021-06-05 00:41:50,847 INFO L226 Difference]: Without dead ends: 2940 [2021-06-05 00:41:50,847 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1969.4ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:41:50,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2021-06-05 00:41:50,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2940. [2021-06-05 00:41:50,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2940 states, 2939 states have (on average 2.586594079618918) internal successors, (7602), 2939 states have internal predecessors, (7602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:50,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 7602 transitions. [2021-06-05 00:41:50,875 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 7602 transitions. Word has length 119 [2021-06-05 00:41:50,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:50,875 INFO L482 AbstractCegarLoop]: Abstraction has 2940 states and 7602 transitions. [2021-06-05 00:41:50,876 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:50,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 7602 transitions. [2021-06-05 00:41:50,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:50,878 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:50,878 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:50,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-06-05 00:41:50,878 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 00:41:50,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:50,878 INFO L82 PathProgramCache]: Analyzing trace with hash -2120060335, now seen corresponding path program 108 times [2021-06-05 00:41:50,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:50,878 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406633738] [2021-06-05 00:41:50,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:51,540 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 00:41:51,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:51,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406633738] [2021-06-05 00:41:51,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406633738] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:51,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:51,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:51,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639240885] [2021-06-05 00:41:51,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:51,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:51,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:51,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:51,541 INFO L87 Difference]: Start difference. First operand 2940 states and 7602 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:52,762 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 00:41:52,991 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-05 00:41:53,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:53,913 INFO L93 Difference]: Finished difference Result 3255 states and 8264 transitions. [2021-06-05 00:41:53,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:41:53,914 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:53,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:53,916 INFO L225 Difference]: With dead ends: 3255 [2021-06-05 00:41:53,916 INFO L226 Difference]: Without dead ends: 3102 [2021-06-05 00:41:53,916 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2093.0ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:41:53,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2021-06-05 00:41:53,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 2980. [2021-06-05 00:41:53,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2979 states have (on average 2.582074521651561) internal successors, (7692), 2979 states have internal predecessors, (7692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:53,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 7692 transitions. [2021-06-05 00:41:53,944 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 7692 transitions. Word has length 119 [2021-06-05 00:41:53,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:53,944 INFO L482 AbstractCegarLoop]: Abstraction has 2980 states and 7692 transitions. [2021-06-05 00:41:53,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:53,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 7692 transitions. [2021-06-05 00:41:53,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:53,946 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:53,946 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:53,947 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-06-05 00:41:53,947 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 00:41:53,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:53,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1600699565, now seen corresponding path program 109 times [2021-06-05 00:41:53,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:53,947 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894426011] [2021-06-05 00:41:53,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:54,618 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 00:41:54,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:54,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894426011] [2021-06-05 00:41:54,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894426011] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:54,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:54,618 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:54,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131711786] [2021-06-05 00:41:54,619 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:54,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:54,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:54,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:54,619 INFO L87 Difference]: Start difference. First operand 2980 states and 7692 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:56,092 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 00:41:57,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:41:57,165 INFO L93 Difference]: Finished difference Result 3251 states and 8252 transitions. [2021-06-05 00:41:57,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:41:57,165 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:41:57,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:41:57,168 INFO L225 Difference]: With dead ends: 3251 [2021-06-05 00:41:57,168 INFO L226 Difference]: Without dead ends: 3104 [2021-06-05 00:41:57,169 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2281.4ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:41:57,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2021-06-05 00:41:57,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 2982. [2021-06-05 00:41:57,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2982 states, 2981 states have (on average 2.581348540758135) internal successors, (7695), 2981 states have internal predecessors, (7695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:57,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2982 states to 2982 states and 7695 transitions. [2021-06-05 00:41:57,201 INFO L78 Accepts]: Start accepts. Automaton has 2982 states and 7695 transitions. Word has length 119 [2021-06-05 00:41:57,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:41:57,201 INFO L482 AbstractCegarLoop]: Abstraction has 2982 states and 7695 transitions. [2021-06-05 00:41:57,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:41:57,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2982 states and 7695 transitions. [2021-06-05 00:41:57,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:41:57,203 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:41:57,203 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:41:57,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-06-05 00:41:57,204 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 00:41:57,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:41:57,204 INFO L82 PathProgramCache]: Analyzing trace with hash 379152239, now seen corresponding path program 110 times [2021-06-05 00:41:57,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:41:57,204 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59330996] [2021-06-05 00:41:57,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:41:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:41:57,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:41:57,918 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:41:57,918 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59330996] [2021-06-05 00:41:57,918 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59330996] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:41:57,918 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:41:57,918 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:41:57,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329543492] [2021-06-05 00:41:57,919 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:41:57,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:41:57,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:41:57,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:41:57,919 INFO L87 Difference]: Start difference. First operand 2982 states and 7695 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:00,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:00,364 INFO L93 Difference]: Finished difference Result 3260 states and 8272 transitions. [2021-06-05 00:42:00,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:42:00,364 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:00,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:00,367 INFO L225 Difference]: With dead ends: 3260 [2021-06-05 00:42:00,367 INFO L226 Difference]: Without dead ends: 3092 [2021-06-05 00:42:00,367 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2173.0ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:42:00,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3092 states. [2021-06-05 00:42:00,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3092 to 2974. [2021-06-05 00:42:00,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 2973 states have (on average 2.580894719138917) internal successors, (7673), 2973 states have internal predecessors, (7673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:00,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 7673 transitions. [2021-06-05 00:42:00,399 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 7673 transitions. Word has length 119 [2021-06-05 00:42:00,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:00,399 INFO L482 AbstractCegarLoop]: Abstraction has 2974 states and 7673 transitions. [2021-06-05 00:42:00,399 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:00,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 7673 transitions. [2021-06-05 00:42:00,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:00,401 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:00,401 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:00,401 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-06-05 00:42:00,402 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 00:42:00,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:00,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1257337423, now seen corresponding path program 111 times [2021-06-05 00:42:00,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:00,402 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462307250] [2021-06-05 00:42:00,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:01,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:01,088 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:01,088 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462307250] [2021-06-05 00:42:01,088 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462307250] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:01,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:01,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:01,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145050198] [2021-06-05 00:42:01,088 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:01,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:01,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:01,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:01,089 INFO L87 Difference]: Start difference. First operand 2974 states and 7673 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:02,537 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 00:42:03,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:03,700 INFO L93 Difference]: Finished difference Result 3293 states and 8348 transitions. [2021-06-05 00:42:03,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:42:03,700 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:03,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:03,703 INFO L225 Difference]: With dead ends: 3293 [2021-06-05 00:42:03,703 INFO L226 Difference]: Without dead ends: 3146 [2021-06-05 00:42:03,704 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 2343.2ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:42:03,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2021-06-05 00:42:03,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 2982. [2021-06-05 00:42:03,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2982 states, 2981 states have (on average 2.580006709158001) internal successors, (7691), 2981 states have internal predecessors, (7691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:03,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2982 states to 2982 states and 7691 transitions. [2021-06-05 00:42:03,736 INFO L78 Accepts]: Start accepts. Automaton has 2982 states and 7691 transitions. Word has length 119 [2021-06-05 00:42:03,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:03,736 INFO L482 AbstractCegarLoop]: Abstraction has 2982 states and 7691 transitions. [2021-06-05 00:42:03,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:03,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2982 states and 7691 transitions. [2021-06-05 00:42:03,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:03,738 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:03,738 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:03,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-06-05 00:42:03,739 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 00:42:03,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:03,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1057778069, now seen corresponding path program 112 times [2021-06-05 00:42:03,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:03,739 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307716645] [2021-06-05 00:42:03,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:04,450 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 00:42:04,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:04,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307716645] [2021-06-05 00:42:04,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307716645] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:04,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:04,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:04,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329897984] [2021-06-05 00:42:04,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:04,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:04,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:04,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:04,451 INFO L87 Difference]: Start difference. First operand 2982 states and 7691 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:07,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:07,043 INFO L93 Difference]: Finished difference Result 3306 states and 8376 transitions. [2021-06-05 00:42:07,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:42:07,043 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:07,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:07,046 INFO L225 Difference]: With dead ends: 3306 [2021-06-05 00:42:07,046 INFO L226 Difference]: Without dead ends: 3144 [2021-06-05 00:42:07,047 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 2363.4ms TimeCoverageRelationStatistics Valid=483, Invalid=2487, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:42:07,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2021-06-05 00:42:07,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2980. [2021-06-05 00:42:07,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2979 states have (on average 2.580060422960725) internal successors, (7686), 2979 states have internal predecessors, (7686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:07,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 7686 transitions. [2021-06-05 00:42:07,079 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 7686 transitions. Word has length 119 [2021-06-05 00:42:07,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:07,079 INFO L482 AbstractCegarLoop]: Abstraction has 2980 states and 7686 transitions. [2021-06-05 00:42:07,079 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:07,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 7686 transitions. [2021-06-05 00:42:07,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:07,081 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:07,081 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:07,081 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-06-05 00:42:07,082 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 00:42:07,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:07,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1927565425, now seen corresponding path program 113 times [2021-06-05 00:42:07,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:07,082 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126557464] [2021-06-05 00:42:07,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:07,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:07,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:07,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126557464] [2021-06-05 00:42:07,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126557464] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:07,779 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:07,779 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:07,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785964709] [2021-06-05 00:42:07,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:07,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:07,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:07,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:07,780 INFO L87 Difference]: Start difference. First operand 2980 states and 7686 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:09,841 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-06-05 00:42:10,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:10,645 INFO L93 Difference]: Finished difference Result 3539 states and 8837 transitions. [2021-06-05 00:42:10,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:42:10,646 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:10,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:10,648 INFO L225 Difference]: With dead ends: 3539 [2021-06-05 00:42:10,649 INFO L226 Difference]: Without dead ends: 3310 [2021-06-05 00:42:10,649 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 2495.6ms TimeCoverageRelationStatistics Valid=547, Invalid=2759, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:42:10,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2021-06-05 00:42:10,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 2956. [2021-06-05 00:42:10,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2956 states, 2955 states have (on average 2.579357021996616) internal successors, (7622), 2955 states have internal predecessors, (7622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:10,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2956 states to 2956 states and 7622 transitions. [2021-06-05 00:42:10,679 INFO L78 Accepts]: Start accepts. Automaton has 2956 states and 7622 transitions. Word has length 119 [2021-06-05 00:42:10,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:10,679 INFO L482 AbstractCegarLoop]: Abstraction has 2956 states and 7622 transitions. [2021-06-05 00:42:10,679 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:10,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2956 states and 7622 transitions. [2021-06-05 00:42:10,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:10,681 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:10,682 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:10,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-06-05 00:42:10,682 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 00:42:10,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:10,682 INFO L82 PathProgramCache]: Analyzing trace with hash -738424267, now seen corresponding path program 3 times [2021-06-05 00:42:10,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:10,682 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004843313] [2021-06-05 00:42:10,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:10,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:10,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004843313] [2021-06-05 00:42:10,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004843313] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:10,831 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:10,831 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 00:42:10,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570268519] [2021-06-05 00:42:10,831 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 00:42:10,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:10,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 00:42:10,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:42:10,832 INFO L87 Difference]: Start difference. First operand 2956 states and 7622 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:11,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:11,092 INFO L93 Difference]: Finished difference Result 3233 states and 8126 transitions. [2021-06-05 00:42:11,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-05 00:42:11,093 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:11,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:11,095 INFO L225 Difference]: With dead ends: 3233 [2021-06-05 00:42:11,095 INFO L226 Difference]: Without dead ends: 3233 [2021-06-05 00:42:11,096 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 206.5ms TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2021-06-05 00:42:11,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3233 states. [2021-06-05 00:42:11,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3233 to 3024. [2021-06-05 00:42:11,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3024 states, 3023 states have (on average 2.5689712206417465) internal successors, (7766), 3023 states have internal predecessors, (7766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:11,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3024 states to 3024 states and 7766 transitions. [2021-06-05 00:42:11,126 INFO L78 Accepts]: Start accepts. Automaton has 3024 states and 7766 transitions. Word has length 119 [2021-06-05 00:42:11,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:11,126 INFO L482 AbstractCegarLoop]: Abstraction has 3024 states and 7766 transitions. [2021-06-05 00:42:11,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:11,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3024 states and 7766 transitions. [2021-06-05 00:42:11,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:11,129 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:11,129 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:11,129 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-06-05 00:42:11,129 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 00:42:11,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:11,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1044605369, now seen corresponding path program 114 times [2021-06-05 00:42:11,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:11,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956809138] [2021-06-05 00:42:11,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:11,772 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 00:42:11,773 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:11,773 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956809138] [2021-06-05 00:42:11,773 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956809138] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:11,773 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:11,773 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:11,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502348012] [2021-06-05 00:42:11,773 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:11,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:11,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:11,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:11,774 INFO L87 Difference]: Start difference. First operand 3024 states and 7766 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:13,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:13,887 INFO L93 Difference]: Finished difference Result 3327 states and 8369 transitions. [2021-06-05 00:42:13,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:42:13,887 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:13,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:13,890 INFO L225 Difference]: With dead ends: 3327 [2021-06-05 00:42:13,890 INFO L226 Difference]: Without dead ends: 3085 [2021-06-05 00:42:13,891 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 1936.9ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:42:13,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2021-06-05 00:42:13,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 2969. [2021-06-05 00:42:13,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2969 states, 2968 states have (on average 2.5785040431266846) internal successors, (7653), 2968 states have internal predecessors, (7653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:13,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2969 states to 2969 states and 7653 transitions. [2021-06-05 00:42:13,922 INFO L78 Accepts]: Start accepts. Automaton has 2969 states and 7653 transitions. Word has length 119 [2021-06-05 00:42:13,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:13,922 INFO L482 AbstractCegarLoop]: Abstraction has 2969 states and 7653 transitions. [2021-06-05 00:42:13,922 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:13,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2969 states and 7653 transitions. [2021-06-05 00:42:13,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:13,924 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:13,924 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:13,924 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-06-05 00:42:13,924 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 00:42:13,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:13,924 INFO L82 PathProgramCache]: Analyzing trace with hash -620934893, now seen corresponding path program 115 times [2021-06-05 00:42:13,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:13,925 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142391461] [2021-06-05 00:42:13,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:14,540 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 00:42:14,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:14,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142391461] [2021-06-05 00:42:14,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142391461] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:14,541 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:14,541 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:14,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386451788] [2021-06-05 00:42:14,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:14,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:14,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:14,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:14,541 INFO L87 Difference]: Start difference. First operand 2969 states and 7653 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:15,660 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 00:42:15,860 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-05 00:42:16,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:16,692 INFO L93 Difference]: Finished difference Result 3281 states and 8272 transitions. [2021-06-05 00:42:16,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:42:16,692 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:16,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:16,695 INFO L225 Difference]: With dead ends: 3281 [2021-06-05 00:42:16,695 INFO L226 Difference]: Without dead ends: 3058 [2021-06-05 00:42:16,695 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1971.1ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:42:16,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2021-06-05 00:42:16,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 2983. [2021-06-05 00:42:16,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2982 states have (on average 2.573775989268947) internal successors, (7675), 2982 states have internal predecessors, (7675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:16,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 7675 transitions. [2021-06-05 00:42:16,727 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 7675 transitions. Word has length 119 [2021-06-05 00:42:16,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:16,727 INFO L482 AbstractCegarLoop]: Abstraction has 2983 states and 7675 transitions. [2021-06-05 00:42:16,727 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:16,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 7675 transitions. [2021-06-05 00:42:16,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:16,729 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:16,729 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:16,729 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-06-05 00:42:16,729 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 00:42:16,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:16,730 INFO L82 PathProgramCache]: Analyzing trace with hash -101574123, now seen corresponding path program 116 times [2021-06-05 00:42:16,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:16,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386992466] [2021-06-05 00:42:16,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:17,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:17,360 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:17,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386992466] [2021-06-05 00:42:17,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386992466] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:17,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:17,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:17,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675487397] [2021-06-05 00:42:17,361 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:17,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:17,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:17,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:17,361 INFO L87 Difference]: Start difference. First operand 2983 states and 7675 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:18,353 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-06-05 00:42:18,666 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 00:42:19,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:19,658 INFO L93 Difference]: Finished difference Result 3263 states and 8232 transitions. [2021-06-05 00:42:19,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:42:19,658 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:19,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:19,660 INFO L225 Difference]: With dead ends: 3263 [2021-06-05 00:42:19,660 INFO L226 Difference]: Without dead ends: 3050 [2021-06-05 00:42:19,661 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2133.1ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:42:19,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2021-06-05 00:42:19,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2986. [2021-06-05 00:42:19,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2985 states have (on average 2.5721943048576215) internal successors, (7678), 2985 states have internal predecessors, (7678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:19,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 7678 transitions. [2021-06-05 00:42:19,691 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 7678 transitions. Word has length 119 [2021-06-05 00:42:19,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:19,691 INFO L482 AbstractCegarLoop]: Abstraction has 2986 states and 7678 transitions. [2021-06-05 00:42:19,691 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:19,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 7678 transitions. [2021-06-05 00:42:19,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:19,693 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:19,693 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:19,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-06-05 00:42:19,693 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 00:42:19,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:19,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1878277681, now seen corresponding path program 117 times [2021-06-05 00:42:19,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:19,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21549181] [2021-06-05 00:42:19,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:20,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:20,323 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:20,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21549181] [2021-06-05 00:42:20,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21549181] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:20,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:20,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:20,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237123826] [2021-06-05 00:42:20,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:20,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:20,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:20,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:20,324 INFO L87 Difference]: Start difference. First operand 2986 states and 7678 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:22,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:22,648 INFO L93 Difference]: Finished difference Result 3345 states and 8401 transitions. [2021-06-05 00:42:22,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:42:22,649 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:22,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:22,651 INFO L225 Difference]: With dead ends: 3345 [2021-06-05 00:42:22,651 INFO L226 Difference]: Without dead ends: 3097 [2021-06-05 00:42:22,651 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2060.6ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:42:22,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2021-06-05 00:42:22,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 2967. [2021-06-05 00:42:22,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2966 states have (on average 2.5755225893459204) internal successors, (7639), 2966 states have internal predecessors, (7639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:22,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 7639 transitions. [2021-06-05 00:42:22,681 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 7639 transitions. Word has length 119 [2021-06-05 00:42:22,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:22,681 INFO L482 AbstractCegarLoop]: Abstraction has 2967 states and 7639 transitions. [2021-06-05 00:42:22,681 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:22,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 7639 transitions. [2021-06-05 00:42:22,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:22,683 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:22,684 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:22,684 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-06-05 00:42:22,684 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 00:42:22,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:22,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1919322589, now seen corresponding path program 118 times [2021-06-05 00:42:22,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:22,684 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381896839] [2021-06-05 00:42:22,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:23,306 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 00:42:23,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:23,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381896839] [2021-06-05 00:42:23,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381896839] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:23,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:23,306 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:23,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887441117] [2021-06-05 00:42:23,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:23,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:23,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:23,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:23,307 INFO L87 Difference]: Start difference. First operand 2967 states and 7639 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:24,623 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-06-05 00:42:25,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:25,484 INFO L93 Difference]: Finished difference Result 3244 states and 8181 transitions. [2021-06-05 00:42:25,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:42:25,485 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:25,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:25,487 INFO L225 Difference]: With dead ends: 3244 [2021-06-05 00:42:25,487 INFO L226 Difference]: Without dead ends: 3015 [2021-06-05 00:42:25,487 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 1918.2ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:42:25,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3015 states. [2021-06-05 00:42:25,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3015 to 2961. [2021-06-05 00:42:25,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2961 states, 2960 states have (on average 2.5763513513513514) internal successors, (7626), 2960 states have internal predecessors, (7626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:25,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2961 states to 2961 states and 7626 transitions. [2021-06-05 00:42:25,515 INFO L78 Accepts]: Start accepts. Automaton has 2961 states and 7626 transitions. Word has length 119 [2021-06-05 00:42:25,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:25,515 INFO L482 AbstractCegarLoop]: Abstraction has 2961 states and 7626 transitions. [2021-06-05 00:42:25,515 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:25,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2961 states and 7626 transitions. [2021-06-05 00:42:25,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:25,517 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:25,517 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:25,518 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-06-05 00:42:25,518 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 00:42:25,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:25,518 INFO L82 PathProgramCache]: Analyzing trace with hash -309055921, now seen corresponding path program 119 times [2021-06-05 00:42:25,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:25,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287075932] [2021-06-05 00:42:25,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:26,119 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 00:42:26,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:26,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287075932] [2021-06-05 00:42:26,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287075932] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:26,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:26,120 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:26,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108747522] [2021-06-05 00:42:26,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:26,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:26,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:26,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:26,120 INFO L87 Difference]: Start difference. First operand 2961 states and 7626 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:27,311 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-05 00:42:27,528 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-06-05 00:42:28,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:28,425 INFO L93 Difference]: Finished difference Result 3213 states and 8115 transitions. [2021-06-05 00:42:28,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:42:28,426 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:28,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:28,428 INFO L225 Difference]: With dead ends: 3213 [2021-06-05 00:42:28,428 INFO L226 Difference]: Without dead ends: 2990 [2021-06-05 00:42:28,429 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1997.0ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:42:28,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2021-06-05 00:42:28,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2938. [2021-06-05 00:42:28,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2938 states, 2937 states have (on average 2.5757575757575757) internal successors, (7565), 2937 states have internal predecessors, (7565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:28,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2938 states to 2938 states and 7565 transitions. [2021-06-05 00:42:28,458 INFO L78 Accepts]: Start accepts. Automaton has 2938 states and 7565 transitions. Word has length 119 [2021-06-05 00:42:28,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:28,458 INFO L482 AbstractCegarLoop]: Abstraction has 2938 states and 7565 transitions. [2021-06-05 00:42:28,458 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:28,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2938 states and 7565 transitions. [2021-06-05 00:42:28,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:28,460 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:28,460 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:28,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-06-05 00:42:28,460 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 00:42:28,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:28,461 INFO L82 PathProgramCache]: Analyzing trace with hash 817352663, now seen corresponding path program 120 times [2021-06-05 00:42:28,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:28,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811043188] [2021-06-05 00:42:28,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:29,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:29,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:29,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811043188] [2021-06-05 00:42:29,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811043188] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:29,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:29,061 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:29,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117484376] [2021-06-05 00:42:29,061 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:29,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:29,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:29,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:29,062 INFO L87 Difference]: Start difference. First operand 2938 states and 7565 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:31,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:31,167 INFO L93 Difference]: Finished difference Result 3203 states and 8089 transitions. [2021-06-05 00:42:31,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:42:31,167 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:31,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:31,170 INFO L225 Difference]: With dead ends: 3203 [2021-06-05 00:42:31,170 INFO L226 Difference]: Without dead ends: 2977 [2021-06-05 00:42:31,170 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 1885.9ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:42:31,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2021-06-05 00:42:31,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 2939. [2021-06-05 00:42:31,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2939 states, 2938 states have (on average 2.572498298162015) internal successors, (7558), 2938 states have internal predecessors, (7558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:31,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2939 states to 2939 states and 7558 transitions. [2021-06-05 00:42:31,198 INFO L78 Accepts]: Start accepts. Automaton has 2939 states and 7558 transitions. Word has length 119 [2021-06-05 00:42:31,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:31,198 INFO L482 AbstractCegarLoop]: Abstraction has 2939 states and 7558 transitions. [2021-06-05 00:42:31,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:31,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2939 states and 7558 transitions. [2021-06-05 00:42:31,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:31,200 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:31,200 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:31,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-06-05 00:42:31,201 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 00:42:31,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:31,201 INFO L82 PathProgramCache]: Analyzing trace with hash 160653421, now seen corresponding path program 121 times [2021-06-05 00:42:31,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:31,201 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894302495] [2021-06-05 00:42:31,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:31,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:31,816 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:31,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894302495] [2021-06-05 00:42:31,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894302495] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:31,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:31,816 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:31,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192032849] [2021-06-05 00:42:31,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:31,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:31,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:31,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:31,816 INFO L87 Difference]: Start difference. First operand 2939 states and 7558 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:34,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:34,050 INFO L93 Difference]: Finished difference Result 3282 states and 8239 transitions. [2021-06-05 00:42:34,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:42:34,050 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:34,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:34,053 INFO L225 Difference]: With dead ends: 3282 [2021-06-05 00:42:34,053 INFO L226 Difference]: Without dead ends: 3048 [2021-06-05 00:42:34,053 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1957.3ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:42:34,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2021-06-05 00:42:34,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 2937. [2021-06-05 00:42:34,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2936 states have (on average 2.5705040871934606) internal successors, (7547), 2936 states have internal predecessors, (7547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:34,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 7547 transitions. [2021-06-05 00:42:34,082 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 7547 transitions. Word has length 119 [2021-06-05 00:42:34,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:34,082 INFO L482 AbstractCegarLoop]: Abstraction has 2937 states and 7547 transitions. [2021-06-05 00:42:34,082 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:34,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 7547 transitions. [2021-06-05 00:42:34,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:34,084 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:34,084 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:34,084 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-06-05 00:42:34,084 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 00:42:34,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:34,085 INFO L82 PathProgramCache]: Analyzing trace with hash -253114975, now seen corresponding path program 122 times [2021-06-05 00:42:34,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:34,085 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803219515] [2021-06-05 00:42:34,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:34,692 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 00:42:34,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:34,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803219515] [2021-06-05 00:42:34,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803219515] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:34,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:34,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:34,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287703979] [2021-06-05 00:42:34,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:34,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:34,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:34,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:34,693 INFO L87 Difference]: Start difference. First operand 2937 states and 7547 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:36,029 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-05 00:42:36,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:36,960 INFO L93 Difference]: Finished difference Result 3149 states and 7950 transitions. [2021-06-05 00:42:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:42:36,961 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:36,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:36,963 INFO L225 Difference]: With dead ends: 3149 [2021-06-05 00:42:36,963 INFO L226 Difference]: Without dead ends: 2826 [2021-06-05 00:42:36,963 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2032.4ms TimeCoverageRelationStatistics Valid=444, Invalid=2208, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:42:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2021-06-05 00:42:36,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 2794. [2021-06-05 00:42:36,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2793 states have (on average 2.594343000358038) internal successors, (7246), 2793 states have internal predecessors, (7246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:36,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 7246 transitions. [2021-06-05 00:42:36,992 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 7246 transitions. Word has length 119 [2021-06-05 00:42:36,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:36,992 INFO L482 AbstractCegarLoop]: Abstraction has 2794 states and 7246 transitions. [2021-06-05 00:42:36,992 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:36,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 7246 transitions. [2021-06-05 00:42:36,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:36,994 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:36,994 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:36,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-06-05 00:42:36,994 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 00:42:36,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:36,995 INFO L82 PathProgramCache]: Analyzing trace with hash 832131385, now seen corresponding path program 123 times [2021-06-05 00:42:36,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:36,995 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535153297] [2021-06-05 00:42:36,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:37,179 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 00:42:37,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:37,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535153297] [2021-06-05 00:42:37,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535153297] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:37,179 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:37,179 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 00:42:37,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800826993] [2021-06-05 00:42:37,179 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 00:42:37,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:37,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 00:42:37,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:42:37,180 INFO L87 Difference]: Start difference. First operand 2794 states and 7246 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:37,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:37,477 INFO L93 Difference]: Finished difference Result 3481 states and 8729 transitions. [2021-06-05 00:42:37,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:42:37,478 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:37,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:37,481 INFO L225 Difference]: With dead ends: 3481 [2021-06-05 00:42:37,481 INFO L226 Difference]: Without dead ends: 3481 [2021-06-05 00:42:37,481 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 278.7ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:42:37,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3481 states. [2021-06-05 00:42:37,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3481 to 2850. [2021-06-05 00:42:37,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2850 states, 2849 states have (on average 2.5805545805545806) internal successors, (7352), 2849 states have internal predecessors, (7352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:37,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 7352 transitions. [2021-06-05 00:42:37,513 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 7352 transitions. Word has length 119 [2021-06-05 00:42:37,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:37,513 INFO L482 AbstractCegarLoop]: Abstraction has 2850 states and 7352 transitions. [2021-06-05 00:42:37,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:37,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 7352 transitions. [2021-06-05 00:42:37,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:37,515 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:37,516 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:37,516 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-06-05 00:42:37,516 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 00:42:37,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:37,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1749086267, now seen corresponding path program 124 times [2021-06-05 00:42:37,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:37,516 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215617862] [2021-06-05 00:42:37,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:38,099 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 00:42:38,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:38,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215617862] [2021-06-05 00:42:38,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215617862] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:38,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:38,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:38,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232713675] [2021-06-05 00:42:38,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:38,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:38,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:38,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:38,100 INFO L87 Difference]: Start difference. First operand 2850 states and 7352 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:39,210 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-06-05 00:42:41,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:41,094 INFO L93 Difference]: Finished difference Result 4555 states and 11592 transitions. [2021-06-05 00:42:41,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:42:41,094 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:41,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:41,098 INFO L225 Difference]: With dead ends: 4555 [2021-06-05 00:42:41,098 INFO L226 Difference]: Without dead ends: 4360 [2021-06-05 00:42:41,098 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2500.7ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:42:41,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2021-06-05 00:42:41,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 3366. [2021-06-05 00:42:41,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 3365 states have (on average 2.613372956909361) internal successors, (8794), 3365 states have internal predecessors, (8794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:41,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 8794 transitions. [2021-06-05 00:42:41,139 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 8794 transitions. Word has length 119 [2021-06-05 00:42:41,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:41,139 INFO L482 AbstractCegarLoop]: Abstraction has 3366 states and 8794 transitions. [2021-06-05 00:42:41,139 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:41,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 8794 transitions. [2021-06-05 00:42:41,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:41,142 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:41,142 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:41,142 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-06-05 00:42:41,142 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 00:42:41,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:41,142 INFO L82 PathProgramCache]: Analyzing trace with hash -90610915, now seen corresponding path program 4 times [2021-06-05 00:42:41,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:41,142 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455055991] [2021-06-05 00:42:41,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:41,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:41,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:41,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455055991] [2021-06-05 00:42:41,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455055991] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:41,584 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:41,584 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-05 00:42:41,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611224721] [2021-06-05 00:42:41,584 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-05 00:42:41,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:41,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-05 00:42:41,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2021-06-05 00:42:41,584 INFO L87 Difference]: Start difference. First operand 3366 states and 8794 transitions. Second operand has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:43,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:43,512 INFO L93 Difference]: Finished difference Result 3704 states and 9432 transitions. [2021-06-05 00:42:43,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 00:42:43,513 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:43,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:43,516 INFO L225 Difference]: With dead ends: 3704 [2021-06-05 00:42:43,516 INFO L226 Difference]: Without dead ends: 3623 [2021-06-05 00:42:43,516 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 1513.5ms TimeCoverageRelationStatistics Valid=736, Invalid=2344, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:42:43,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3623 states. [2021-06-05 00:42:43,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3623 to 3351. [2021-06-05 00:42:43,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3350 states have (on average 2.6292537313432836) internal successors, (8808), 3350 states have internal predecessors, (8808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:43,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 8808 transitions. [2021-06-05 00:42:43,551 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 8808 transitions. Word has length 119 [2021-06-05 00:42:43,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:43,551 INFO L482 AbstractCegarLoop]: Abstraction has 3351 states and 8808 transitions. [2021-06-05 00:42:43,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:43,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 8808 transitions. [2021-06-05 00:42:43,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:43,553 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:43,553 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:43,553 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-06-05 00:42:43,554 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 00:42:43,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:43,554 INFO L82 PathProgramCache]: Analyzing trace with hash -2143741377, now seen corresponding path program 125 times [2021-06-05 00:42:43,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:43,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504530860] [2021-06-05 00:42:43,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:44,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:44,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:44,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504530860] [2021-06-05 00:42:44,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504530860] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:44,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:44,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:44,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087222075] [2021-06-05 00:42:44,137 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:44,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:44,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:44,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:44,137 INFO L87 Difference]: Start difference. First operand 3351 states and 8808 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:47,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:47,011 INFO L93 Difference]: Finished difference Result 4631 states and 12019 transitions. [2021-06-05 00:42:47,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:42:47,011 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:47,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:47,014 INFO L225 Difference]: With dead ends: 4631 [2021-06-05 00:42:47,014 INFO L226 Difference]: Without dead ends: 4240 [2021-06-05 00:42:47,014 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2501.1ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:42:47,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4240 states. [2021-06-05 00:42:47,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4240 to 3411. [2021-06-05 00:42:47,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3411 states, 3410 states have (on average 2.6146627565982405) internal successors, (8916), 3410 states have internal predecessors, (8916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:47,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3411 states to 3411 states and 8916 transitions. [2021-06-05 00:42:47,051 INFO L78 Accepts]: Start accepts. Automaton has 3411 states and 8916 transitions. Word has length 119 [2021-06-05 00:42:47,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:47,051 INFO L482 AbstractCegarLoop]: Abstraction has 3411 states and 8916 transitions. [2021-06-05 00:42:47,051 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:47,051 INFO L276 IsEmpty]: Start isEmpty. Operand 3411 states and 8916 transitions. [2021-06-05 00:42:47,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:47,053 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:47,054 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:47,054 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-06-05 00:42:47,054 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 00:42:47,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:47,054 INFO L82 PathProgramCache]: Analyzing trace with hash -935316013, now seen corresponding path program 126 times [2021-06-05 00:42:47,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:47,054 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864929485] [2021-06-05 00:42:47,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:47,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:47,664 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:47,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864929485] [2021-06-05 00:42:47,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864929485] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:47,664 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:47,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:47,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140198644] [2021-06-05 00:42:47,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:47,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:47,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:47,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:47,665 INFO L87 Difference]: Start difference. First operand 3411 states and 8916 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:48,558 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-06-05 00:42:50,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:50,670 INFO L93 Difference]: Finished difference Result 4346 states and 11212 transitions. [2021-06-05 00:42:50,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 00:42:50,670 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:50,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:50,673 INFO L225 Difference]: With dead ends: 4346 [2021-06-05 00:42:50,673 INFO L226 Difference]: Without dead ends: 3916 [2021-06-05 00:42:50,674 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2686.8ms TimeCoverageRelationStatistics Valid=639, Invalid=3143, Unknown=0, NotChecked=0, Total=3782 [2021-06-05 00:42:50,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2021-06-05 00:42:50,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3087. [2021-06-05 00:42:50,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3087 states, 3086 states have (on average 2.6085547634478288) internal successors, (8050), 3086 states have internal predecessors, (8050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:50,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3087 states to 3087 states and 8050 transitions. [2021-06-05 00:42:50,706 INFO L78 Accepts]: Start accepts. Automaton has 3087 states and 8050 transitions. Word has length 119 [2021-06-05 00:42:50,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:50,706 INFO L482 AbstractCegarLoop]: Abstraction has 3087 states and 8050 transitions. [2021-06-05 00:42:50,706 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:50,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3087 states and 8050 transitions. [2021-06-05 00:42:50,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:50,708 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:50,708 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:50,708 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-06-05 00:42:50,708 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 00:42:50,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:50,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1756421371, now seen corresponding path program 127 times [2021-06-05 00:42:50,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:50,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047941782] [2021-06-05 00:42:50,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:51,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:51,283 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:51,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047941782] [2021-06-05 00:42:51,283 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047941782] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:51,283 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:51,283 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:51,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828745261] [2021-06-05 00:42:51,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:51,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:51,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:51,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:51,284 INFO L87 Difference]: Start difference. First operand 3087 states and 8050 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:52,413 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-06-05 00:42:52,816 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-05 00:42:54,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:54,249 INFO L93 Difference]: Finished difference Result 3683 states and 9433 transitions. [2021-06-05 00:42:54,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:42:54,249 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:54,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:54,252 INFO L225 Difference]: With dead ends: 3683 [2021-06-05 00:42:54,252 INFO L226 Difference]: Without dead ends: 3499 [2021-06-05 00:42:54,252 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 2549.3ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:42:54,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3499 states. [2021-06-05 00:42:54,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3499 to 3083. [2021-06-05 00:42:54,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 3082 states have (on average 2.6080467229072033) internal successors, (8038), 3082 states have internal predecessors, (8038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:54,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 8038 transitions. [2021-06-05 00:42:54,285 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 8038 transitions. Word has length 119 [2021-06-05 00:42:54,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:54,285 INFO L482 AbstractCegarLoop]: Abstraction has 3083 states and 8038 transitions. [2021-06-05 00:42:54,285 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:54,285 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 8038 transitions. [2021-06-05 00:42:54,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:54,288 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:54,288 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:54,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-06-05 00:42:54,288 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 00:42:54,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:54,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1834230611, now seen corresponding path program 128 times [2021-06-05 00:42:54,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:54,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152369726] [2021-06-05 00:42:54,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:54,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:54,881 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:54,881 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152369726] [2021-06-05 00:42:54,881 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152369726] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:54,882 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:54,882 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:54,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709225222] [2021-06-05 00:42:54,882 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:54,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:54,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:54,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:54,882 INFO L87 Difference]: Start difference. First operand 3083 states and 8038 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:56,250 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-05 00:42:57,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:42:57,606 INFO L93 Difference]: Finished difference Result 3561 states and 9084 transitions. [2021-06-05 00:42:57,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:42:57,606 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:42:57,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:42:57,609 INFO L225 Difference]: With dead ends: 3561 [2021-06-05 00:42:57,609 INFO L226 Difference]: Without dead ends: 3347 [2021-06-05 00:42:57,609 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2432.8ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:42:57,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3347 states. [2021-06-05 00:42:57,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3347 to 3079. [2021-06-05 00:42:57,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3079 states, 3078 states have (on average 2.6062378167641325) internal successors, (8022), 3078 states have internal predecessors, (8022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:57,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3079 states to 3079 states and 8022 transitions. [2021-06-05 00:42:57,642 INFO L78 Accepts]: Start accepts. Automaton has 3079 states and 8022 transitions. Word has length 119 [2021-06-05 00:42:57,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:42:57,642 INFO L482 AbstractCegarLoop]: Abstraction has 3079 states and 8022 transitions. [2021-06-05 00:42:57,642 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:42:57,642 INFO L276 IsEmpty]: Start isEmpty. Operand 3079 states and 8022 transitions. [2021-06-05 00:42:57,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:42:57,645 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:42:57,645 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:42:57,646 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-06-05 00:42:57,646 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 00:42:57,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:42:57,646 INFO L82 PathProgramCache]: Analyzing trace with hash -667295235, now seen corresponding path program 129 times [2021-06-05 00:42:57,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:42:57,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482240899] [2021-06-05 00:42:57,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:42:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:42:58,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:42:58,232 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:42:58,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482240899] [2021-06-05 00:42:58,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482240899] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:42:58,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:42:58,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:42:58,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139381559] [2021-06-05 00:42:58,232 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:42:58,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:42:58,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:42:58,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:42:58,233 INFO L87 Difference]: Start difference. First operand 3079 states and 8022 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:00,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:00,766 INFO L93 Difference]: Finished difference Result 3687 states and 9494 transitions. [2021-06-05 00:43:00,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:43:00,766 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:00,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:00,769 INFO L225 Difference]: With dead ends: 3687 [2021-06-05 00:43:00,769 INFO L226 Difference]: Without dead ends: 3557 [2021-06-05 00:43:00,769 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2146.3ms TimeCoverageRelationStatistics Valid=487, Invalid=2483, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:43:00,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3557 states. [2021-06-05 00:43:00,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3557 to 3247. [2021-06-05 00:43:00,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3247 states, 3246 states have (on average 2.6001232285890326) internal successors, (8440), 3246 states have internal predecessors, (8440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:00,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 8440 transitions. [2021-06-05 00:43:00,802 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 8440 transitions. Word has length 119 [2021-06-05 00:43:00,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:00,802 INFO L482 AbstractCegarLoop]: Abstraction has 3247 states and 8440 transitions. [2021-06-05 00:43:00,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:00,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 8440 transitions. [2021-06-05 00:43:00,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:00,805 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:00,805 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:00,805 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-06-05 00:43:00,805 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 00:43:00,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:00,806 INFO L82 PathProgramCache]: Analyzing trace with hash -265155583, now seen corresponding path program 130 times [2021-06-05 00:43:00,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:00,806 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724135392] [2021-06-05 00:43:00,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:01,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:01,383 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:01,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724135392] [2021-06-05 00:43:01,383 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724135392] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:01,383 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:01,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:01,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725070213] [2021-06-05 00:43:01,383 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:01,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:01,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:01,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:01,384 INFO L87 Difference]: Start difference. First operand 3247 states and 8440 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:03,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:03,894 INFO L93 Difference]: Finished difference Result 3861 states and 9900 transitions. [2021-06-05 00:43:03,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:43:03,894 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:03,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:03,898 INFO L225 Difference]: With dead ends: 3861 [2021-06-05 00:43:03,898 INFO L226 Difference]: Without dead ends: 3610 [2021-06-05 00:43:03,898 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2165.5ms TimeCoverageRelationStatistics Valid=518, Invalid=2562, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:43:03,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2021-06-05 00:43:03,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 3283. [2021-06-05 00:43:03,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 3282 states have (on average 2.5898842169408898) internal successors, (8500), 3282 states have internal predecessors, (8500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:03,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 8500 transitions. [2021-06-05 00:43:03,936 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 8500 transitions. Word has length 119 [2021-06-05 00:43:03,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:03,936 INFO L482 AbstractCegarLoop]: Abstraction has 3283 states and 8500 transitions. [2021-06-05 00:43:03,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:03,936 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 8500 transitions. [2021-06-05 00:43:03,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:03,939 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:03,939 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:03,939 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-06-05 00:43:03,939 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 00:43:03,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:03,939 INFO L82 PathProgramCache]: Analyzing trace with hash 943269781, now seen corresponding path program 131 times [2021-06-05 00:43:03,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:03,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365065981] [2021-06-05 00:43:03,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:04,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:04,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:04,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365065981] [2021-06-05 00:43:04,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365065981] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:04,553 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:04,554 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:04,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354432110] [2021-06-05 00:43:04,554 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:04,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:04,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:04,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:04,554 INFO L87 Difference]: Start difference. First operand 3283 states and 8500 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:05,645 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-06-05 00:43:07,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:07,204 INFO L93 Difference]: Finished difference Result 3692 states and 9443 transitions. [2021-06-05 00:43:07,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:43:07,205 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:07,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:07,208 INFO L225 Difference]: With dead ends: 3692 [2021-06-05 00:43:07,208 INFO L226 Difference]: Without dead ends: 3406 [2021-06-05 00:43:07,209 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 2286.3ms TimeCoverageRelationStatistics Valid=520, Invalid=2672, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:43:07,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3406 states. [2021-06-05 00:43:07,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3406 to 3079. [2021-06-05 00:43:07,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3079 states, 3078 states have (on average 2.6023391812865495) internal successors, (8010), 3078 states have internal predecessors, (8010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:07,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3079 states to 3079 states and 8010 transitions. [2021-06-05 00:43:07,245 INFO L78 Accepts]: Start accepts. Automaton has 3079 states and 8010 transitions. Word has length 119 [2021-06-05 00:43:07,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:07,245 INFO L482 AbstractCegarLoop]: Abstraction has 3079 states and 8010 transitions. [2021-06-05 00:43:07,245 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:07,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3079 states and 8010 transitions. [2021-06-05 00:43:07,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:07,248 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:07,248 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:07,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-06-05 00:43:07,248 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 00:43:07,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:07,248 INFO L82 PathProgramCache]: Analyzing trace with hash -659960131, now seen corresponding path program 132 times [2021-06-05 00:43:07,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:07,248 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862941978] [2021-06-05 00:43:07,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:07,862 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 00:43:07,863 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:07,863 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862941978] [2021-06-05 00:43:07,863 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862941978] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:07,863 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:07,863 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:07,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552227002] [2021-06-05 00:43:07,863 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:07,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:07,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:07,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:07,863 INFO L87 Difference]: Start difference. First operand 3079 states and 8010 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:09,363 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-06-05 00:43:10,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:10,309 INFO L93 Difference]: Finished difference Result 3437 states and 8851 transitions. [2021-06-05 00:43:10,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:43:10,310 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:10,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:10,313 INFO L225 Difference]: With dead ends: 3437 [2021-06-05 00:43:10,313 INFO L226 Difference]: Without dead ends: 3293 [2021-06-05 00:43:10,313 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 2201.3ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:43:10,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3293 states. [2021-06-05 00:43:10,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3293 to 3067. [2021-06-05 00:43:10,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 3066 states have (on average 2.604696673189824) internal successors, (7986), 3066 states have internal predecessors, (7986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:10,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 7986 transitions. [2021-06-05 00:43:10,344 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 7986 transitions. Word has length 119 [2021-06-05 00:43:10,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:10,344 INFO L482 AbstractCegarLoop]: Abstraction has 3067 states and 7986 transitions. [2021-06-05 00:43:10,344 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:10,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 7986 transitions. [2021-06-05 00:43:10,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:10,346 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:10,346 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:10,346 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-06-05 00:43:10,346 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 00:43:10,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:10,347 INFO L82 PathProgramCache]: Analyzing trace with hash -562381799, now seen corresponding path program 133 times [2021-06-05 00:43:10,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:10,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585512661] [2021-06-05 00:43:10,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:10,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:10,936 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:10,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585512661] [2021-06-05 00:43:10,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585512661] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:10,936 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:10,936 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:10,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620728170] [2021-06-05 00:43:10,936 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:10,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:10,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:10,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:10,937 INFO L87 Difference]: Start difference. First operand 3067 states and 7986 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:13,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:13,469 INFO L93 Difference]: Finished difference Result 4134 states and 10644 transitions. [2021-06-05 00:43:13,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:43:13,470 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:13,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:13,473 INFO L225 Difference]: With dead ends: 4134 [2021-06-05 00:43:13,474 INFO L226 Difference]: Without dead ends: 4004 [2021-06-05 00:43:13,474 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 2091.8ms TimeCoverageRelationStatistics Valid=477, Invalid=2493, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:43:13,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4004 states. [2021-06-05 00:43:13,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4004 to 3211. [2021-06-05 00:43:13,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3210 states have (on average 2.6031152647975078) internal successors, (8356), 3210 states have internal predecessors, (8356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:13,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 8356 transitions. [2021-06-05 00:43:13,510 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 8356 transitions. Word has length 119 [2021-06-05 00:43:13,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:13,510 INFO L482 AbstractCegarLoop]: Abstraction has 3211 states and 8356 transitions. [2021-06-05 00:43:13,510 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:13,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 8356 transitions. [2021-06-05 00:43:13,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:13,512 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:13,512 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:13,512 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-06-05 00:43:13,513 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 00:43:13,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:13,513 INFO L82 PathProgramCache]: Analyzing trace with hash -160242147, now seen corresponding path program 134 times [2021-06-05 00:43:13,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:13,513 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69584260] [2021-06-05 00:43:13,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:14,096 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:14,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69584260] [2021-06-05 00:43:14,096 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69584260] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:14,096 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:14,096 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:14,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904375007] [2021-06-05 00:43:14,097 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:14,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:14,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:14,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:14,097 INFO L87 Difference]: Start difference. First operand 3211 states and 8356 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:16,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:16,620 INFO L93 Difference]: Finished difference Result 4308 states and 11050 transitions. [2021-06-05 00:43:16,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:43:16,620 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:16,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:16,624 INFO L225 Difference]: With dead ends: 4308 [2021-06-05 00:43:16,624 INFO L226 Difference]: Without dead ends: 4057 [2021-06-05 00:43:16,625 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 2202.1ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:43:16,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4057 states. [2021-06-05 00:43:16,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4057 to 3247. [2021-06-05 00:43:16,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3247 states, 3246 states have (on average 2.592729513247073) internal successors, (8416), 3246 states have internal predecessors, (8416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:16,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 8416 transitions. [2021-06-05 00:43:16,662 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 8416 transitions. Word has length 119 [2021-06-05 00:43:16,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:16,662 INFO L482 AbstractCegarLoop]: Abstraction has 3247 states and 8416 transitions. [2021-06-05 00:43:16,662 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:16,662 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 8416 transitions. [2021-06-05 00:43:16,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:16,665 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:16,665 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:16,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-06-05 00:43:16,665 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 00:43:16,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:16,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1048183217, now seen corresponding path program 135 times [2021-06-05 00:43:16,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:16,665 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705735331] [2021-06-05 00:43:16,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:17,263 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 00:43:17,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:17,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705735331] [2021-06-05 00:43:17,263 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705735331] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:17,263 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:17,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:17,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449513630] [2021-06-05 00:43:17,264 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:17,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:17,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:17,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:17,264 INFO L87 Difference]: Start difference. First operand 3247 states and 8416 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:19,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:19,938 INFO L93 Difference]: Finished difference Result 4139 states and 10593 transitions. [2021-06-05 00:43:19,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:43:19,938 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:19,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:19,941 INFO L225 Difference]: With dead ends: 4139 [2021-06-05 00:43:19,942 INFO L226 Difference]: Without dead ends: 3853 [2021-06-05 00:43:19,942 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 2296.9ms TimeCoverageRelationStatistics Valid=509, Invalid=2683, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:43:19,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2021-06-05 00:43:19,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 3043. [2021-06-05 00:43:19,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 3042 states have (on average 2.58974358974359) internal successors, (7878), 3042 states have internal predecessors, (7878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:19,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 7878 transitions. [2021-06-05 00:43:19,975 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 7878 transitions. Word has length 119 [2021-06-05 00:43:19,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:19,976 INFO L482 AbstractCegarLoop]: Abstraction has 3043 states and 7878 transitions. [2021-06-05 00:43:19,976 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:19,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 7878 transitions. [2021-06-05 00:43:19,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:19,978 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:19,978 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:19,978 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-06-05 00:43:19,978 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 00:43:19,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:19,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1028140911, now seen corresponding path program 136 times [2021-06-05 00:43:19,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:19,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906190693] [2021-06-05 00:43:19,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:20,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:20,568 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:20,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906190693] [2021-06-05 00:43:20,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906190693] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:20,568 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:20,568 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:20,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801476854] [2021-06-05 00:43:20,569 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:20,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:20,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:20,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:20,569 INFO L87 Difference]: Start difference. First operand 3043 states and 7878 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:23,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:23,199 INFO L93 Difference]: Finished difference Result 4063 states and 10313 transitions. [2021-06-05 00:43:23,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:43:23,199 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:23,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:23,202 INFO L225 Difference]: With dead ends: 4063 [2021-06-05 00:43:23,202 INFO L226 Difference]: Without dead ends: 3858 [2021-06-05 00:43:23,203 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 2245.3ms TimeCoverageRelationStatistics Valid=520, Invalid=2786, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:43:23,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2021-06-05 00:43:23,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 2983. [2021-06-05 00:43:23,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2982 states have (on average 2.601609657947686) internal successors, (7758), 2982 states have internal predecessors, (7758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:23,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 7758 transitions. [2021-06-05 00:43:23,238 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 7758 transitions. Word has length 119 [2021-06-05 00:43:23,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:23,239 INFO L482 AbstractCegarLoop]: Abstraction has 2983 states and 7758 transitions. [2021-06-05 00:43:23,239 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:23,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 7758 transitions. [2021-06-05 00:43:23,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:23,241 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:23,241 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:23,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-06-05 00:43:23,241 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 00:43:23,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:23,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1908947921, now seen corresponding path program 137 times [2021-06-05 00:43:23,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:23,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951362] [2021-06-05 00:43:23,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:23,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:23,846 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:23,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951362] [2021-06-05 00:43:23,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951362] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:23,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:23,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:23,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566749073] [2021-06-05 00:43:23,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:23,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:23,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:23,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:23,846 INFO L87 Difference]: Start difference. First operand 2983 states and 7758 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:25,123 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2021-06-05 00:43:25,247 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-06-05 00:43:26,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:26,284 INFO L93 Difference]: Finished difference Result 3389 states and 8711 transitions. [2021-06-05 00:43:26,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:43:26,284 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:26,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:26,287 INFO L225 Difference]: With dead ends: 3389 [2021-06-05 00:43:26,287 INFO L226 Difference]: Without dead ends: 3257 [2021-06-05 00:43:26,287 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 2182.3ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:43:26,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2021-06-05 00:43:26,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 2985. [2021-06-05 00:43:26,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2985 states, 2984 states have (on average 2.6008713136729225) internal successors, (7761), 2984 states have internal predecessors, (7761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:26,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 7761 transitions. [2021-06-05 00:43:26,317 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 7761 transitions. Word has length 119 [2021-06-05 00:43:26,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:26,318 INFO L482 AbstractCegarLoop]: Abstraction has 2985 states and 7761 transitions. [2021-06-05 00:43:26,318 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:26,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 7761 transitions. [2021-06-05 00:43:26,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:26,320 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:26,320 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:26,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-06-05 00:43:26,320 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 00:43:26,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:26,320 INFO L82 PathProgramCache]: Analyzing trace with hash 242127883, now seen corresponding path program 138 times [2021-06-05 00:43:26,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:26,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210026568] [2021-06-05 00:43:26,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:26,924 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 00:43:26,924 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:26,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210026568] [2021-06-05 00:43:26,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210026568] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:26,925 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:26,925 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:26,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21638119] [2021-06-05 00:43:26,925 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:26,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:26,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:26,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:26,925 INFO L87 Difference]: Start difference. First operand 2985 states and 7761 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:29,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:29,515 INFO L93 Difference]: Finished difference Result 3566 states and 9064 transitions. [2021-06-05 00:43:29,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:43:29,516 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:29,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:29,518 INFO L225 Difference]: With dead ends: 3566 [2021-06-05 00:43:29,518 INFO L226 Difference]: Without dead ends: 3407 [2021-06-05 00:43:29,519 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 2293.7ms TimeCoverageRelationStatistics Valid=559, Invalid=2747, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:43:29,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3407 states. [2021-06-05 00:43:29,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3407 to 2971. [2021-06-05 00:43:29,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2971 states, 2970 states have (on average 2.604040404040404) internal successors, (7734), 2970 states have internal predecessors, (7734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:29,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2971 states to 2971 states and 7734 transitions. [2021-06-05 00:43:29,549 INFO L78 Accepts]: Start accepts. Automaton has 2971 states and 7734 transitions. Word has length 119 [2021-06-05 00:43:29,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:29,549 INFO L482 AbstractCegarLoop]: Abstraction has 2971 states and 7734 transitions. [2021-06-05 00:43:29,549 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:29,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2971 states and 7734 transitions. [2021-06-05 00:43:29,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:29,551 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:29,551 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:29,551 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-06-05 00:43:29,552 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 00:43:29,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:29,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1898146437, now seen corresponding path program 139 times [2021-06-05 00:43:29,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:29,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062183538] [2021-06-05 00:43:29,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:30,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:30,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:30,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062183538] [2021-06-05 00:43:30,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062183538] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:30,160 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:30,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:30,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350591449] [2021-06-05 00:43:30,161 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:30,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:30,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:30,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:30,161 INFO L87 Difference]: Start difference. First operand 2971 states and 7734 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:31,482 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-05 00:43:32,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:32,817 INFO L93 Difference]: Finished difference Result 3377 states and 8570 transitions. [2021-06-05 00:43:32,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:43:32,817 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:32,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:32,819 INFO L225 Difference]: With dead ends: 3377 [2021-06-05 00:43:32,819 INFO L226 Difference]: Without dead ends: 3199 [2021-06-05 00:43:32,820 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2366.9ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:43:32,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3199 states. [2021-06-05 00:43:32,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3199 to 2979. [2021-06-05 00:43:32,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2978 states have (on average 2.6017461383478846) internal successors, (7748), 2978 states have internal predecessors, (7748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:32,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 7748 transitions. [2021-06-05 00:43:32,849 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 7748 transitions. Word has length 119 [2021-06-05 00:43:32,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:32,849 INFO L482 AbstractCegarLoop]: Abstraction has 2979 states and 7748 transitions. [2021-06-05 00:43:32,849 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:32,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 7748 transitions. [2021-06-05 00:43:32,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:32,852 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:32,852 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:32,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-06-05 00:43:32,852 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 00:43:32,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:32,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1378785667, now seen corresponding path program 140 times [2021-06-05 00:43:32,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:32,852 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543974625] [2021-06-05 00:43:32,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:33,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:33,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:33,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543974625] [2021-06-05 00:43:33,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543974625] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:33,480 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:33,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:33,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051476578] [2021-06-05 00:43:33,481 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:33,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:33,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:33,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:33,481 INFO L87 Difference]: Start difference. First operand 2979 states and 7748 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:34,779 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-05 00:43:35,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:35,842 INFO L93 Difference]: Finished difference Result 3203 states and 8200 transitions. [2021-06-05 00:43:35,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:43:35,842 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:35,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:35,844 INFO L225 Difference]: With dead ends: 3203 [2021-06-05 00:43:35,844 INFO L226 Difference]: Without dead ends: 3071 [2021-06-05 00:43:35,845 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2137.9ms TimeCoverageRelationStatistics Valid=481, Invalid=2381, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:43:35,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3071 states. [2021-06-05 00:43:35,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3071 to 2981. [2021-06-05 00:43:35,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2981 states, 2980 states have (on average 2.6010067114093958) internal successors, (7751), 2980 states have internal predecessors, (7751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:35,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2981 states to 2981 states and 7751 transitions. [2021-06-05 00:43:35,873 INFO L78 Accepts]: Start accepts. Automaton has 2981 states and 7751 transitions. Word has length 119 [2021-06-05 00:43:35,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:35,873 INFO L482 AbstractCegarLoop]: Abstraction has 2981 states and 7751 transitions. [2021-06-05 00:43:35,874 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:35,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2981 states and 7751 transitions. [2021-06-05 00:43:35,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:35,876 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:35,876 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:35,876 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-06-05 00:43:35,876 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 00:43:35,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:35,876 INFO L82 PathProgramCache]: Analyzing trace with hash 601066137, now seen corresponding path program 141 times [2021-06-05 00:43:35,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:35,876 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671880063] [2021-06-05 00:43:35,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:36,549 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 00:43:36,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:36,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671880063] [2021-06-05 00:43:36,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671880063] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:36,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:36,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:36,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549953939] [2021-06-05 00:43:36,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:36,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:36,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:36,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:36,551 INFO L87 Difference]: Start difference. First operand 2981 states and 7751 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:39,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:39,186 INFO L93 Difference]: Finished difference Result 3370 states and 8528 transitions. [2021-06-05 00:43:39,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:43:39,187 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:39,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:39,189 INFO L225 Difference]: With dead ends: 3370 [2021-06-05 00:43:39,190 INFO L226 Difference]: Without dead ends: 3181 [2021-06-05 00:43:39,190 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 2369.4ms TimeCoverageRelationStatistics Valid=536, Invalid=2656, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:43:39,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3181 states. [2021-06-05 00:43:39,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3181 to 2937. [2021-06-05 00:43:39,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2936 states have (on average 2.6106948228882834) internal successors, (7665), 2936 states have internal predecessors, (7665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:39,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 7665 transitions. [2021-06-05 00:43:39,234 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 7665 transitions. Word has length 119 [2021-06-05 00:43:39,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:39,234 INFO L482 AbstractCegarLoop]: Abstraction has 2937 states and 7665 transitions. [2021-06-05 00:43:39,234 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:39,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 7665 transitions. [2021-06-05 00:43:39,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:39,236 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:39,236 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:39,236 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-06-05 00:43:39,236 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 00:43:39,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:39,237 INFO L82 PathProgramCache]: Analyzing trace with hash 811371103, now seen corresponding path program 142 times [2021-06-05 00:43:39,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:39,237 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437823273] [2021-06-05 00:43:39,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:39,466 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 00:43:39,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:39,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437823273] [2021-06-05 00:43:39,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437823273] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:39,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:39,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 00:43:39,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859585432] [2021-06-05 00:43:39,467 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 00:43:39,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:39,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 00:43:39,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:43:39,467 INFO L87 Difference]: Start difference. First operand 2937 states and 7665 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:39,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:39,902 INFO L93 Difference]: Finished difference Result 3503 states and 8715 transitions. [2021-06-05 00:43:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 00:43:39,902 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:39,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:39,905 INFO L225 Difference]: With dead ends: 3503 [2021-06-05 00:43:39,905 INFO L226 Difference]: Without dead ends: 3447 [2021-06-05 00:43:39,905 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 377.6ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-06-05 00:43:39,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2021-06-05 00:43:39,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 2749. [2021-06-05 00:43:39,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 2748 states have (on average 2.5782387190684135) internal successors, (7085), 2748 states have internal predecessors, (7085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:39,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 7085 transitions. [2021-06-05 00:43:39,935 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 7085 transitions. Word has length 119 [2021-06-05 00:43:39,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:39,936 INFO L482 AbstractCegarLoop]: Abstraction has 2749 states and 7085 transitions. [2021-06-05 00:43:39,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:39,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 7085 transitions. [2021-06-05 00:43:39,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:39,938 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:39,938 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:39,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-06-05 00:43:39,938 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 00:43:39,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:39,938 INFO L82 PathProgramCache]: Analyzing trace with hash 239606275, now seen corresponding path program 143 times [2021-06-05 00:43:39,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:39,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563777764] [2021-06-05 00:43:39,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:40,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:40,568 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:40,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563777764] [2021-06-05 00:43:40,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563777764] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:40,568 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:40,568 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:40,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568331763] [2021-06-05 00:43:40,568 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:40,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:40,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:40,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:40,569 INFO L87 Difference]: Start difference. First operand 2749 states and 7085 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:41,479 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2021-06-05 00:43:42,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:42,838 INFO L93 Difference]: Finished difference Result 2870 states and 7294 transitions. [2021-06-05 00:43:42,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:43:42,838 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:42,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:42,840 INFO L225 Difference]: With dead ends: 2870 [2021-06-05 00:43:42,840 INFO L226 Difference]: Without dead ends: 2765 [2021-06-05 00:43:42,840 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1947.9ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:43:42,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2021-06-05 00:43:42,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 2749. [2021-06-05 00:43:42,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 2748 states have (on average 2.576783114992722) internal successors, (7081), 2748 states have internal predecessors, (7081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:42,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 7081 transitions. [2021-06-05 00:43:42,866 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 7081 transitions. Word has length 119 [2021-06-05 00:43:42,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:42,866 INFO L482 AbstractCegarLoop]: Abstraction has 2749 states and 7081 transitions. [2021-06-05 00:43:42,866 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:42,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 7081 transitions. [2021-06-05 00:43:42,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:42,868 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:42,868 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:42,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-06-05 00:43:42,868 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 00:43:42,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:42,869 INFO L82 PathProgramCache]: Analyzing trace with hash 235188135, now seen corresponding path program 144 times [2021-06-05 00:43:42,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:42,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744184754] [2021-06-05 00:43:42,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:43,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:43,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:43,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744184754] [2021-06-05 00:43:43,464 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744184754] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:43,465 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:43,465 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:43,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990681755] [2021-06-05 00:43:43,465 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:43,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:43,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:43,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:43,465 INFO L87 Difference]: Start difference. First operand 2749 states and 7081 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:45,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:45,782 INFO L93 Difference]: Finished difference Result 3076 states and 7832 transitions. [2021-06-05 00:43:45,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:43:45,783 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:45,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:45,785 INFO L225 Difference]: With dead ends: 3076 [2021-06-05 00:43:45,786 INFO L226 Difference]: Without dead ends: 2981 [2021-06-05 00:43:45,786 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1964.3ms TimeCoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:43:45,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-06-05 00:43:45,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2893. [2021-06-05 00:43:45,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2892 states have (on average 2.576417704011065) internal successors, (7451), 2892 states have internal predecessors, (7451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:45,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 7451 transitions. [2021-06-05 00:43:45,818 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 7451 transitions. Word has length 119 [2021-06-05 00:43:45,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:45,818 INFO L482 AbstractCegarLoop]: Abstraction has 2893 states and 7451 transitions. [2021-06-05 00:43:45,818 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:45,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 7451 transitions. [2021-06-05 00:43:45,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:45,820 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:45,820 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:45,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-06-05 00:43:45,820 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 00:43:45,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:45,821 INFO L82 PathProgramCache]: Analyzing trace with hash -239518167, now seen corresponding path program 145 times [2021-06-05 00:43:45,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:45,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119035356] [2021-06-05 00:43:45,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:46,441 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 00:43:46,441 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:46,441 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119035356] [2021-06-05 00:43:46,441 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119035356] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:46,441 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:46,441 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:46,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990216228] [2021-06-05 00:43:46,441 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:46,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:46,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:46,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:46,442 INFO L87 Difference]: Start difference. First operand 2893 states and 7451 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:48,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:48,820 INFO L93 Difference]: Finished difference Result 3299 states and 8335 transitions. [2021-06-05 00:43:48,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:43:48,820 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:48,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:48,822 INFO L225 Difference]: With dead ends: 3299 [2021-06-05 00:43:48,823 INFO L226 Difference]: Without dead ends: 2804 [2021-06-05 00:43:48,823 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 2081.3ms TimeCoverageRelationStatistics Valid=502, Invalid=2578, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:43:48,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2021-06-05 00:43:48,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2725. [2021-06-05 00:43:48,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2725 states, 2724 states have (on average 2.577459618208517) internal successors, (7021), 2724 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:48,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 7021 transitions. [2021-06-05 00:43:48,852 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 7021 transitions. Word has length 119 [2021-06-05 00:43:48,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:48,852 INFO L482 AbstractCegarLoop]: Abstraction has 2725 states and 7021 transitions. [2021-06-05 00:43:48,852 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:48,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 7021 transitions. [2021-06-05 00:43:48,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:48,854 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:48,854 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:48,854 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-06-05 00:43:48,854 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 00:43:48,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:48,855 INFO L82 PathProgramCache]: Analyzing trace with hash -683582829, now seen corresponding path program 146 times [2021-06-05 00:43:48,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:48,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32790931] [2021-06-05 00:43:48,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:49,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:49,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:49,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32790931] [2021-06-05 00:43:49,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32790931] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:49,476 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:49,476 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:49,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380091350] [2021-06-05 00:43:49,476 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:49,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:49,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:49,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:49,476 INFO L87 Difference]: Start difference. First operand 2725 states and 7021 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:50,842 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-06-05 00:43:51,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:51,708 INFO L93 Difference]: Finished difference Result 2837 states and 7216 transitions. [2021-06-05 00:43:51,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:43:51,708 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:51,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:51,711 INFO L225 Difference]: With dead ends: 2837 [2021-06-05 00:43:51,711 INFO L226 Difference]: Without dead ends: 2680 [2021-06-05 00:43:51,711 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 2013.7ms TimeCoverageRelationStatistics Valid=464, Invalid=2292, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:43:51,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2021-06-05 00:43:51,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 2665. [2021-06-05 00:43:51,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2664 states have (on average 2.591966966966967) internal successors, (6905), 2664 states have internal predecessors, (6905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:51,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 6905 transitions. [2021-06-05 00:43:51,736 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 6905 transitions. Word has length 119 [2021-06-05 00:43:51,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:51,736 INFO L482 AbstractCegarLoop]: Abstraction has 2665 states and 6905 transitions. [2021-06-05 00:43:51,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:51,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 6905 transitions. [2021-06-05 00:43:51,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:51,738 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:51,738 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:51,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-06-05 00:43:51,738 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 00:43:51,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:51,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1038992181, now seen corresponding path program 147 times [2021-06-05 00:43:51,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:51,739 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55615044] [2021-06-05 00:43:51,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:52,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:52,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:52,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55615044] [2021-06-05 00:43:52,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55615044] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:52,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:52,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:52,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481089346] [2021-06-05 00:43:52,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:52,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:52,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:52,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:52,326 INFO L87 Difference]: Start difference. First operand 2665 states and 6905 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:54,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:54,468 INFO L93 Difference]: Finished difference Result 2810 states and 7181 transitions. [2021-06-05 00:43:54,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:43:54,468 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:54,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:54,470 INFO L225 Difference]: With dead ends: 2810 [2021-06-05 00:43:54,470 INFO L226 Difference]: Without dead ends: 2691 [2021-06-05 00:43:54,471 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1881.7ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:43:54,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2021-06-05 00:43:54,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2649. [2021-06-05 00:43:54,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2649 states, 2648 states have (on average 2.596299093655589) internal successors, (6875), 2648 states have internal predecessors, (6875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:54,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 6875 transitions. [2021-06-05 00:43:54,497 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 6875 transitions. Word has length 119 [2021-06-05 00:43:54,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:54,497 INFO L482 AbstractCegarLoop]: Abstraction has 2649 states and 6875 transitions. [2021-06-05 00:43:54,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:54,497 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 6875 transitions. [2021-06-05 00:43:54,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:54,499 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:54,499 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:54,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-06-05 00:43:54,499 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 00:43:54,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:54,500 INFO L82 PathProgramCache]: Analyzing trace with hash 2077494909, now seen corresponding path program 148 times [2021-06-05 00:43:54,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:54,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058927185] [2021-06-05 00:43:54,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:54,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:54,688 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:54,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058927185] [2021-06-05 00:43:54,688 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058927185] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:54,688 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:54,688 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 00:43:54,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008778882] [2021-06-05 00:43:54,688 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 00:43:54,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:54,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 00:43:54,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:43:54,688 INFO L87 Difference]: Start difference. First operand 2649 states and 6875 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:54,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:54,968 INFO L93 Difference]: Finished difference Result 5195 states and 13221 transitions. [2021-06-05 00:43:54,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:43:54,969 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:54,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:54,973 INFO L225 Difference]: With dead ends: 5195 [2021-06-05 00:43:54,973 INFO L226 Difference]: Without dead ends: 5195 [2021-06-05 00:43:54,973 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 255.7ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:43:54,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5195 states. [2021-06-05 00:43:55,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5195 to 2819. [2021-06-05 00:43:55,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2818 states have (on average 2.5691980127750176) internal successors, (7240), 2818 states have internal predecessors, (7240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:55,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 7240 transitions. [2021-06-05 00:43:55,012 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 7240 transitions. Word has length 119 [2021-06-05 00:43:55,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:55,012 INFO L482 AbstractCegarLoop]: Abstraction has 2819 states and 7240 transitions. [2021-06-05 00:43:55,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:55,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 7240 transitions. [2021-06-05 00:43:55,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:55,015 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:55,015 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:55,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-06-05 00:43:55,015 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 00:43:55,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:55,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1300517505, now seen corresponding path program 149 times [2021-06-05 00:43:55,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:55,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513455403] [2021-06-05 00:43:55,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:55,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:55,600 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:55,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513455403] [2021-06-05 00:43:55,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513455403] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:55,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:55,600 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:55,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983527731] [2021-06-05 00:43:55,600 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:55,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:55,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:55,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:55,600 INFO L87 Difference]: Start difference. First operand 2819 states and 7240 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:58,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:43:58,534 INFO L93 Difference]: Finished difference Result 4283 states and 10970 transitions. [2021-06-05 00:43:58,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:43:58,535 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:43:58,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:43:58,538 INFO L225 Difference]: With dead ends: 4283 [2021-06-05 00:43:58,539 INFO L226 Difference]: Without dead ends: 4117 [2021-06-05 00:43:58,539 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2424.5ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:43:58,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2021-06-05 00:43:58,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 3251. [2021-06-05 00:43:58,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3251 states, 3250 states have (on average 2.6055384615384614) internal successors, (8468), 3250 states have internal predecessors, (8468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:58,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3251 states to 3251 states and 8468 transitions. [2021-06-05 00:43:58,579 INFO L78 Accepts]: Start accepts. Automaton has 3251 states and 8468 transitions. Word has length 119 [2021-06-05 00:43:58,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:43:58,579 INFO L482 AbstractCegarLoop]: Abstraction has 3251 states and 8468 transitions. [2021-06-05 00:43:58,579 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:43:58,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3251 states and 8468 transitions. [2021-06-05 00:43:58,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:43:58,581 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:43:58,582 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:43:58,582 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-06-05 00:43:58,582 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 00:43:58,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:43:58,582 INFO L82 PathProgramCache]: Analyzing trace with hash -898377853, now seen corresponding path program 150 times [2021-06-05 00:43:58,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:43:58,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601248325] [2021-06-05 00:43:58,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:43:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:43:59,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:43:59,203 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:43:59,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601248325] [2021-06-05 00:43:59,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601248325] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:43:59,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:43:59,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:43:59,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075585802] [2021-06-05 00:43:59,203 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:43:59,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:43:59,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:43:59,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:43:59,204 INFO L87 Difference]: Start difference. First operand 3251 states and 8468 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:02,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:02,016 INFO L93 Difference]: Finished difference Result 4555 states and 11728 transitions. [2021-06-05 00:44:02,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:44:02,017 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:02,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:02,020 INFO L225 Difference]: With dead ends: 4555 [2021-06-05 00:44:02,021 INFO L226 Difference]: Without dead ends: 4164 [2021-06-05 00:44:02,021 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2487.0ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:44:02,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4164 states. [2021-06-05 00:44:02,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4164 to 3311. [2021-06-05 00:44:02,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3311 states, 3310 states have (on average 2.5909365558912385) internal successors, (8576), 3310 states have internal predecessors, (8576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:02,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3311 states to 3311 states and 8576 transitions. [2021-06-05 00:44:02,058 INFO L78 Accepts]: Start accepts. Automaton has 3311 states and 8576 transitions. Word has length 119 [2021-06-05 00:44:02,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:02,058 INFO L482 AbstractCegarLoop]: Abstraction has 3311 states and 8576 transitions. [2021-06-05 00:44:02,058 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:02,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3311 states and 8576 transitions. [2021-06-05 00:44:02,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:02,061 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:02,061 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:02,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-06-05 00:44:02,061 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 00:44:02,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:02,062 INFO L82 PathProgramCache]: Analyzing trace with hash 310047511, now seen corresponding path program 151 times [2021-06-05 00:44:02,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:02,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703214216] [2021-06-05 00:44:02,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:02,647 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 00:44:02,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:02,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703214216] [2021-06-05 00:44:02,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703214216] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:02,647 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:02,647 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:02,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375641551] [2021-06-05 00:44:02,647 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:02,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:02,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:02,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:02,648 INFO L87 Difference]: Start difference. First operand 3311 states and 8576 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:05,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:05,552 INFO L93 Difference]: Finished difference Result 4270 states and 10921 transitions. [2021-06-05 00:44:05,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 00:44:05,553 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:05,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:05,556 INFO L225 Difference]: With dead ends: 4270 [2021-06-05 00:44:05,556 INFO L226 Difference]: Without dead ends: 3864 [2021-06-05 00:44:05,557 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2584.5ms TimeCoverageRelationStatistics Valid=639, Invalid=3143, Unknown=0, NotChecked=0, Total=3782 [2021-06-05 00:44:05,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3864 states. [2021-06-05 00:44:05,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3864 to 3011. [2021-06-05 00:44:05,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3011 states, 3010 states have (on average 2.5887043189368772) internal successors, (7792), 3010 states have internal predecessors, (7792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:05,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3011 states to 3011 states and 7792 transitions. [2021-06-05 00:44:05,591 INFO L78 Accepts]: Start accepts. Automaton has 3011 states and 7792 transitions. Word has length 119 [2021-06-05 00:44:05,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:05,591 INFO L482 AbstractCegarLoop]: Abstraction has 3011 states and 7792 transitions. [2021-06-05 00:44:05,592 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:05,592 INFO L276 IsEmpty]: Start isEmpty. Operand 3011 states and 7792 transitions. [2021-06-05 00:44:05,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:05,594 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:05,594 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:05,594 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-06-05 00:44:05,594 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 00:44:05,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:05,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1293182401, now seen corresponding path program 152 times [2021-06-05 00:44:05,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:05,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361044072] [2021-06-05 00:44:05,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:06,193 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 00:44:06,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:06,193 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361044072] [2021-06-05 00:44:06,193 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361044072] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:06,193 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:06,193 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:06,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947105848] [2021-06-05 00:44:06,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:06,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:06,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:06,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:06,194 INFO L87 Difference]: Start difference. First operand 3011 states and 7792 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:07,110 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-06-05 00:44:07,696 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-05 00:44:09,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:09,078 INFO L93 Difference]: Finished difference Result 3627 states and 9214 transitions. [2021-06-05 00:44:09,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:44:09,078 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:09,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:09,081 INFO L225 Difference]: With dead ends: 3627 [2021-06-05 00:44:09,082 INFO L226 Difference]: Without dead ends: 3447 [2021-06-05 00:44:09,082 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 2531.1ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:44:09,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2021-06-05 00:44:09,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 3005. [2021-06-05 00:44:09,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3005 states, 3004 states have (on average 2.5888814913448734) internal successors, (7777), 3004 states have internal predecessors, (7777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:09,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3005 states to 3005 states and 7777 transitions. [2021-06-05 00:44:09,116 INFO L78 Accepts]: Start accepts. Automaton has 3005 states and 7777 transitions. Word has length 119 [2021-06-05 00:44:09,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:09,116 INFO L482 AbstractCegarLoop]: Abstraction has 3005 states and 7777 transitions. [2021-06-05 00:44:09,116 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:09,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3005 states and 7777 transitions. [2021-06-05 00:44:09,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:09,118 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:09,119 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:09,119 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-06-05 00:44:09,119 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 00:44:09,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:09,119 INFO L82 PathProgramCache]: Analyzing trace with hash -588867087, now seen corresponding path program 153 times [2021-06-05 00:44:09,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:09,119 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858846345] [2021-06-05 00:44:09,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:09,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:09,712 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:09,712 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858846345] [2021-06-05 00:44:09,712 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858846345] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:09,712 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:09,712 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:09,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448579621] [2021-06-05 00:44:09,712 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:09,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:09,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:09,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:09,713 INFO L87 Difference]: Start difference. First operand 3005 states and 7777 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:11,108 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-05 00:44:12,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:12,434 INFO L93 Difference]: Finished difference Result 3507 states and 8864 transitions. [2021-06-05 00:44:12,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:44:12,434 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:12,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:12,437 INFO L225 Difference]: With dead ends: 3507 [2021-06-05 00:44:12,437 INFO L226 Difference]: Without dead ends: 3297 [2021-06-05 00:44:12,438 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2372.6ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:44:12,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2021-06-05 00:44:12,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 2995. [2021-06-05 00:44:12,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2995 states, 2994 states have (on average 2.594522378089512) internal successors, (7768), 2994 states have internal predecessors, (7768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:12,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 7768 transitions. [2021-06-05 00:44:12,469 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 7768 transitions. Word has length 119 [2021-06-05 00:44:12,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:12,470 INFO L482 AbstractCegarLoop]: Abstraction has 2995 states and 7768 transitions. [2021-06-05 00:44:12,470 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:12,470 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 7768 transitions. [2021-06-05 00:44:12,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:12,472 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:12,472 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:12,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-06-05 00:44:12,472 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 00:44:12,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:12,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1214591945, now seen corresponding path program 154 times [2021-06-05 00:44:12,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:12,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943088391] [2021-06-05 00:44:12,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:13,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:13,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:13,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943088391] [2021-06-05 00:44:13,110 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943088391] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:13,110 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:13,110 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:13,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395909365] [2021-06-05 00:44:13,110 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:13,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:13,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:13,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:13,110 INFO L87 Difference]: Start difference. First operand 2995 states and 7768 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:15,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:15,859 INFO L93 Difference]: Finished difference Result 3451 states and 8756 transitions. [2021-06-05 00:44:15,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:44:15,859 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:15,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:15,862 INFO L225 Difference]: With dead ends: 3451 [2021-06-05 00:44:15,862 INFO L226 Difference]: Without dead ends: 3296 [2021-06-05 00:44:15,863 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 2426.5ms TimeCoverageRelationStatistics Valid=604, Invalid=2818, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:44:15,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2021-06-05 00:44:15,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 3001. [2021-06-05 00:44:15,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3001 states, 3000 states have (on average 2.591) internal successors, (7773), 3000 states have internal predecessors, (7773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:15,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 7773 transitions. [2021-06-05 00:44:15,896 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 7773 transitions. Word has length 119 [2021-06-05 00:44:15,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:15,896 INFO L482 AbstractCegarLoop]: Abstraction has 3001 states and 7773 transitions. [2021-06-05 00:44:15,896 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:15,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 7773 transitions. [2021-06-05 00:44:15,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:15,899 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:15,899 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:15,899 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-06-05 00:44:15,899 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 00:44:15,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:15,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1210173805, now seen corresponding path program 155 times [2021-06-05 00:44:15,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:15,899 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284935064] [2021-06-05 00:44:15,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:16,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:16,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:16,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284935064] [2021-06-05 00:44:16,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284935064] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:16,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:16,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:16,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078610262] [2021-06-05 00:44:16,510 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:16,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:16,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:16,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:16,511 INFO L87 Difference]: Start difference. First operand 3001 states and 7773 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:19,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:19,496 INFO L93 Difference]: Finished difference Result 4347 states and 11130 transitions. [2021-06-05 00:44:19,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:44:19,496 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:19,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:19,500 INFO L225 Difference]: With dead ends: 4347 [2021-06-05 00:44:19,500 INFO L226 Difference]: Without dead ends: 4202 [2021-06-05 00:44:19,500 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 2449.7ms TimeCoverageRelationStatistics Valid=579, Invalid=2961, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:44:19,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4202 states. [2021-06-05 00:44:19,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4202 to 3289. [2021-06-05 00:44:19,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3289 states, 3288 states have (on average 2.605535279805353) internal successors, (8567), 3288 states have internal predecessors, (8567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:19,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3289 states to 3289 states and 8567 transitions. [2021-06-05 00:44:19,540 INFO L78 Accepts]: Start accepts. Automaton has 3289 states and 8567 transitions. Word has length 119 [2021-06-05 00:44:19,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:19,540 INFO L482 AbstractCegarLoop]: Abstraction has 3289 states and 8567 transitions. [2021-06-05 00:44:19,540 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:19,540 INFO L276 IsEmpty]: Start isEmpty. Operand 3289 states and 8567 transitions. [2021-06-05 00:44:19,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:19,543 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:19,543 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:19,543 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-06-05 00:44:19,543 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 00:44:19,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:19,543 INFO L82 PathProgramCache]: Analyzing trace with hash 735467503, now seen corresponding path program 156 times [2021-06-05 00:44:19,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:19,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122855418] [2021-06-05 00:44:19,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:20,130 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 00:44:20,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:20,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122855418] [2021-06-05 00:44:20,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122855418] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:20,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:20,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:20,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061343781] [2021-06-05 00:44:20,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:20,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:20,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:20,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:20,131 INFO L87 Difference]: Start difference. First operand 3289 states and 8567 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:23,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:23,162 INFO L93 Difference]: Finished difference Result 4682 states and 12014 transitions. [2021-06-05 00:44:23,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 00:44:23,163 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:23,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:23,167 INFO L225 Difference]: With dead ends: 4682 [2021-06-05 00:44:23,167 INFO L226 Difference]: Without dead ends: 3900 [2021-06-05 00:44:23,167 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 2617.5ms TimeCoverageRelationStatistics Valid=655, Invalid=3251, Unknown=0, NotChecked=0, Total=3906 [2021-06-05 00:44:23,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3900 states. [2021-06-05 00:44:23,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3900 to 3025. [2021-06-05 00:44:23,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 3024 states have (on average 2.5823412698412698) internal successors, (7809), 3024 states have internal predecessors, (7809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:23,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 7809 transitions. [2021-06-05 00:44:23,204 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 7809 transitions. Word has length 119 [2021-06-05 00:44:23,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:23,204 INFO L482 AbstractCegarLoop]: Abstraction has 3025 states and 7809 transitions. [2021-06-05 00:44:23,204 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:23,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 7809 transitions. [2021-06-05 00:44:23,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:23,206 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:23,206 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:23,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-06-05 00:44:23,206 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 00:44:23,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:23,207 INFO L82 PathProgramCache]: Analyzing trace with hash 291402841, now seen corresponding path program 157 times [2021-06-05 00:44:23,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:23,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620726533] [2021-06-05 00:44:23,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:23,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:23,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:23,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:23,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620726533] [2021-06-05 00:44:23,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620726533] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:23,818 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:23,819 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:23,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117999628] [2021-06-05 00:44:23,819 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:23,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:23,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:23,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:23,819 INFO L87 Difference]: Start difference. First operand 3025 states and 7809 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:25,298 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-05 00:44:26,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:26,639 INFO L93 Difference]: Finished difference Result 3661 states and 9292 transitions. [2021-06-05 00:44:26,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:44:26,640 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:26,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:26,643 INFO L225 Difference]: With dead ends: 3661 [2021-06-05 00:44:26,643 INFO L226 Difference]: Without dead ends: 3454 [2021-06-05 00:44:26,643 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 2465.1ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:44:26,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2021-06-05 00:44:26,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 2965. [2021-06-05 00:44:26,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2964 states have (on average 2.5954790823211877) internal successors, (7693), 2964 states have internal predecessors, (7693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:26,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 7693 transitions. [2021-06-05 00:44:26,676 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 7693 transitions. Word has length 119 [2021-06-05 00:44:26,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:26,676 INFO L482 AbstractCegarLoop]: Abstraction has 2965 states and 7693 transitions. [2021-06-05 00:44:26,676 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:26,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 7693 transitions. [2021-06-05 00:44:26,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:26,678 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:26,678 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:26,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-06-05 00:44:26,678 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 00:44:26,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:26,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1535248097, now seen corresponding path program 158 times [2021-06-05 00:44:26,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:26,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378408783] [2021-06-05 00:44:26,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:26,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:26,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:26,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378408783] [2021-06-05 00:44:26,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378408783] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:26,903 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:26,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 00:44:26,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077319093] [2021-06-05 00:44:26,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 00:44:26,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:26,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 00:44:26,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:44:26,903 INFO L87 Difference]: Start difference. First operand 2965 states and 7693 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:27,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:27,353 INFO L93 Difference]: Finished difference Result 3573 states and 8938 transitions. [2021-06-05 00:44:27,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 00:44:27,354 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:27,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:27,357 INFO L225 Difference]: With dead ends: 3573 [2021-06-05 00:44:27,357 INFO L226 Difference]: Without dead ends: 3517 [2021-06-05 00:44:27,357 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 393.6ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-06-05 00:44:27,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3517 states. [2021-06-05 00:44:27,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3517 to 2775. [2021-06-05 00:44:27,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2774 states have (on average 2.5847152126892574) internal successors, (7170), 2774 states have internal predecessors, (7170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:27,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 7170 transitions. [2021-06-05 00:44:27,389 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 7170 transitions. Word has length 119 [2021-06-05 00:44:27,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:27,389 INFO L482 AbstractCegarLoop]: Abstraction has 2775 states and 7170 transitions. [2021-06-05 00:44:27,389 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:27,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 7170 transitions. [2021-06-05 00:44:27,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:27,391 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:27,391 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:27,391 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-06-05 00:44:27,391 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 00:44:27,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:27,392 INFO L82 PathProgramCache]: Analyzing trace with hash -290631401, now seen corresponding path program 159 times [2021-06-05 00:44:27,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:27,392 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152983339] [2021-06-05 00:44:27,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:28,014 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 00:44:28,015 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:28,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152983339] [2021-06-05 00:44:28,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152983339] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:28,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:28,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:28,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846867636] [2021-06-05 00:44:28,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:28,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:28,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:28,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:28,016 INFO L87 Difference]: Start difference. First operand 2775 states and 7170 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:30,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:30,255 INFO L93 Difference]: Finished difference Result 2918 states and 7427 transitions. [2021-06-05 00:44:30,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:44:30,255 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:30,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:30,257 INFO L225 Difference]: With dead ends: 2918 [2021-06-05 00:44:30,258 INFO L226 Difference]: Without dead ends: 2815 [2021-06-05 00:44:30,258 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1926.4ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:44:30,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2021-06-05 00:44:30,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2785. [2021-06-05 00:44:30,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2784 states have (on average 2.581537356321839) internal successors, (7187), 2784 states have internal predecessors, (7187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:30,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 7187 transitions. [2021-06-05 00:44:30,285 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 7187 transitions. Word has length 119 [2021-06-05 00:44:30,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:30,286 INFO L482 AbstractCegarLoop]: Abstraction has 2785 states and 7187 transitions. [2021-06-05 00:44:30,286 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:30,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 7187 transitions. [2021-06-05 00:44:30,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:30,288 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:30,288 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:30,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-06-05 00:44:30,288 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 00:44:30,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:30,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1831846923, now seen corresponding path program 160 times [2021-06-05 00:44:30,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:30,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495771145] [2021-06-05 00:44:30,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:30,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:30,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:30,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495771145] [2021-06-05 00:44:30,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495771145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:30,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:30,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:30,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953537811] [2021-06-05 00:44:30,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:30,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:30,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:30,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:30,874 INFO L87 Difference]: Start difference. First operand 2785 states and 7187 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:33,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:33,213 INFO L93 Difference]: Finished difference Result 2952 states and 7500 transitions. [2021-06-05 00:44:33,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:44:33,213 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:33,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:33,216 INFO L225 Difference]: With dead ends: 2952 [2021-06-05 00:44:33,216 INFO L226 Difference]: Without dead ends: 2847 [2021-06-05 00:44:33,216 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 2039.9ms TimeCoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:44:33,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2021-06-05 00:44:33,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 2787. [2021-06-05 00:44:33,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2786 states have (on average 2.5807609475951185) internal successors, (7190), 2786 states have internal predecessors, (7190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:33,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 7190 transitions. [2021-06-05 00:44:33,243 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 7190 transitions. Word has length 119 [2021-06-05 00:44:33,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:33,243 INFO L482 AbstractCegarLoop]: Abstraction has 2787 states and 7190 transitions. [2021-06-05 00:44:33,244 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:33,244 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 7190 transitions. [2021-06-05 00:44:33,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:33,246 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:33,246 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:33,246 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-06-05 00:44:33,246 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 00:44:33,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:33,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1418078527, now seen corresponding path program 161 times [2021-06-05 00:44:33,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:33,246 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239901572] [2021-06-05 00:44:33,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:33,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:33,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:33,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239901572] [2021-06-05 00:44:33,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239901572] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:33,897 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:33,897 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:33,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567297553] [2021-06-05 00:44:33,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:33,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:33,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:33,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:33,897 INFO L87 Difference]: Start difference. First operand 2787 states and 7190 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:36,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:36,069 INFO L93 Difference]: Finished difference Result 2908 states and 7404 transitions. [2021-06-05 00:44:36,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:44:36,069 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:36,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:36,072 INFO L225 Difference]: With dead ends: 2908 [2021-06-05 00:44:36,072 INFO L226 Difference]: Without dead ends: 2803 [2021-06-05 00:44:36,072 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1938.0ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:44:36,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2021-06-05 00:44:36,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2779. [2021-06-05 00:44:36,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2779 states, 2778 states have (on average 2.58207343412527) internal successors, (7173), 2778 states have internal predecessors, (7173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:36,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 7173 transitions. [2021-06-05 00:44:36,100 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 7173 transitions. Word has length 119 [2021-06-05 00:44:36,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:36,100 INFO L482 AbstractCegarLoop]: Abstraction has 2779 states and 7173 transitions. [2021-06-05 00:44:36,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:36,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 7173 transitions. [2021-06-05 00:44:36,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:36,102 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:36,102 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:36,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-06-05 00:44:36,102 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 00:44:36,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:36,103 INFO L82 PathProgramCache]: Analyzing trace with hash -624725047, now seen corresponding path program 162 times [2021-06-05 00:44:36,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:36,103 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310624436] [2021-06-05 00:44:36,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:36,665 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 00:44:36,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:36,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310624436] [2021-06-05 00:44:36,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310624436] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:36,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:36,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:36,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83857200] [2021-06-05 00:44:36,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:36,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:36,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:36,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:36,666 INFO L87 Difference]: Start difference. First operand 2779 states and 7173 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:39,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:39,030 INFO L93 Difference]: Finished difference Result 3390 states and 8642 transitions. [2021-06-05 00:44:39,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:44:39,031 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:39,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:39,033 INFO L225 Difference]: With dead ends: 3390 [2021-06-05 00:44:39,033 INFO L226 Difference]: Without dead ends: 3295 [2021-06-05 00:44:39,033 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2037.1ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:44:39,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3295 states. [2021-06-05 00:44:39,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3295 to 2983. [2021-06-05 00:44:39,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2982 states have (on average 2.5778001341381622) internal successors, (7687), 2982 states have internal predecessors, (7687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:39,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 7687 transitions. [2021-06-05 00:44:39,063 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 7687 transitions. Word has length 119 [2021-06-05 00:44:39,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:39,063 INFO L482 AbstractCegarLoop]: Abstraction has 2983 states and 7687 transitions. [2021-06-05 00:44:39,063 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:39,063 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 7687 transitions. [2021-06-05 00:44:39,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:39,065 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:39,066 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:39,066 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-06-05 00:44:39,066 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 00:44:39,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:39,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1099431349, now seen corresponding path program 163 times [2021-06-05 00:44:39,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:39,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899845832] [2021-06-05 00:44:39,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:39,656 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 00:44:39,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:39,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899845832] [2021-06-05 00:44:39,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899845832] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:39,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:39,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:39,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528967314] [2021-06-05 00:44:39,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:39,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:39,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:39,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:39,657 INFO L87 Difference]: Start difference. First operand 2983 states and 7687 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:42,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:42,150 INFO L93 Difference]: Finished difference Result 3613 states and 9145 transitions. [2021-06-05 00:44:42,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:44:42,151 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:42,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:42,153 INFO L225 Difference]: With dead ends: 3613 [2021-06-05 00:44:42,153 INFO L226 Difference]: Without dead ends: 3118 [2021-06-05 00:44:42,153 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 2218.5ms TimeCoverageRelationStatistics Valid=511, Invalid=2681, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:44:42,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3118 states. [2021-06-05 00:44:42,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3118 to 2815. [2021-06-05 00:44:42,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2814 states have (on average 2.5618336886993602) internal successors, (7209), 2814 states have internal predecessors, (7209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:42,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 7209 transitions. [2021-06-05 00:44:42,180 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 7209 transitions. Word has length 119 [2021-06-05 00:44:42,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:42,180 INFO L482 AbstractCegarLoop]: Abstraction has 2815 states and 7209 transitions. [2021-06-05 00:44:42,180 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:42,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 7209 transitions. [2021-06-05 00:44:42,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:42,182 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:42,182 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:42,182 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-06-05 00:44:42,183 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 00:44:42,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:42,183 INFO L82 PathProgramCache]: Analyzing trace with hash 135546217, now seen corresponding path program 164 times [2021-06-05 00:44:42,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:42,183 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760283380] [2021-06-05 00:44:42,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:42,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:42,742 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:42,742 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760283380] [2021-06-05 00:44:42,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760283380] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:42,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:42,743 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:42,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534095663] [2021-06-05 00:44:42,743 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:42,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:42,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:42,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:42,743 INFO L87 Difference]: Start difference. First operand 2815 states and 7209 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:44,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:44,988 INFO L93 Difference]: Finished difference Result 3190 states and 8064 transitions. [2021-06-05 00:44:44,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:44:44,989 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:44,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:44,991 INFO L225 Difference]: With dead ends: 3190 [2021-06-05 00:44:44,991 INFO L226 Difference]: Without dead ends: 3025 [2021-06-05 00:44:44,992 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2025.4ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:44:44,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2021-06-05 00:44:45,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 2755. [2021-06-05 00:44:45,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2754 states have (on average 2.574074074074074) internal successors, (7089), 2754 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:45,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 7089 transitions. [2021-06-05 00:44:45,021 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 7089 transitions. Word has length 119 [2021-06-05 00:44:45,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:45,021 INFO L482 AbstractCegarLoop]: Abstraction has 2755 states and 7089 transitions. [2021-06-05 00:44:45,021 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:45,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 7089 transitions. [2021-06-05 00:44:45,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:45,023 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:45,023 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:45,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-06-05 00:44:45,023 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 00:44:45,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:45,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1175804925, now seen corresponding path program 165 times [2021-06-05 00:44:45,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:45,023 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222227128] [2021-06-05 00:44:45,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:45,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:45,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:45,651 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222227128] [2021-06-05 00:44:45,651 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222227128] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:45,651 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:45,651 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:45,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787991499] [2021-06-05 00:44:45,651 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:45,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:45,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:45,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:45,651 INFO L87 Difference]: Start difference. First operand 2755 states and 7089 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:48,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:48,002 INFO L93 Difference]: Finished difference Result 3092 states and 7859 transitions. [2021-06-05 00:44:48,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:44:48,002 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:48,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:48,005 INFO L225 Difference]: With dead ends: 3092 [2021-06-05 00:44:48,005 INFO L226 Difference]: Without dead ends: 2997 [2021-06-05 00:44:48,006 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 2155.9ms TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:44:48,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2021-06-05 00:44:48,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2899. [2021-06-05 00:44:48,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2899 states, 2898 states have (on average 2.5738440303657697) internal successors, (7459), 2898 states have internal predecessors, (7459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:48,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 7459 transitions. [2021-06-05 00:44:48,035 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 7459 transitions. Word has length 119 [2021-06-05 00:44:48,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:48,035 INFO L482 AbstractCegarLoop]: Abstraction has 2899 states and 7459 transitions. [2021-06-05 00:44:48,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:48,035 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 7459 transitions. [2021-06-05 00:44:48,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:48,037 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:48,037 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:48,037 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-06-05 00:44:48,037 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 00:44:48,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:48,037 INFO L82 PathProgramCache]: Analyzing trace with hash 701098623, now seen corresponding path program 166 times [2021-06-05 00:44:48,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:48,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356461009] [2021-06-05 00:44:48,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:48,660 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 00:44:48,661 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:48,661 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356461009] [2021-06-05 00:44:48,661 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356461009] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:48,661 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:48,661 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:48,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824373124] [2021-06-05 00:44:48,661 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:48,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:48,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:48,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:48,662 INFO L87 Difference]: Start difference. First operand 2899 states and 7459 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:51,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:51,196 INFO L93 Difference]: Finished difference Result 3315 states and 8362 transitions. [2021-06-05 00:44:51,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:44:51,196 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:51,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:51,198 INFO L225 Difference]: With dead ends: 3315 [2021-06-05 00:44:51,198 INFO L226 Difference]: Without dead ends: 2820 [2021-06-05 00:44:51,199 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 2339.2ms TimeCoverageRelationStatistics Valid=536, Invalid=2770, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:44:51,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2021-06-05 00:44:51,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2731. [2021-06-05 00:44:51,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2731 states, 2730 states have (on average 2.574725274725275) internal successors, (7029), 2730 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:51,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2731 states to 2731 states and 7029 transitions. [2021-06-05 00:44:51,226 INFO L78 Accepts]: Start accepts. Automaton has 2731 states and 7029 transitions. Word has length 119 [2021-06-05 00:44:51,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:51,226 INFO L482 AbstractCegarLoop]: Abstraction has 2731 states and 7029 transitions. [2021-06-05 00:44:51,226 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:51,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2731 states and 7029 transitions. [2021-06-05 00:44:51,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:51,228 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:51,228 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:51,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-06-05 00:44:51,228 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 00:44:51,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:51,228 INFO L82 PathProgramCache]: Analyzing trace with hash 257033961, now seen corresponding path program 167 times [2021-06-05 00:44:51,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:51,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201267993] [2021-06-05 00:44:51,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:51,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:51,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:51,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201267993] [2021-06-05 00:44:51,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201267993] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:51,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:51,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:51,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362326515] [2021-06-05 00:44:51,855 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:51,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:51,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:51,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:51,856 INFO L87 Difference]: Start difference. First operand 2731 states and 7029 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:53,198 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-05 00:44:54,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:54,205 INFO L93 Difference]: Finished difference Result 2850 states and 7238 transitions. [2021-06-05 00:44:54,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:44:54,205 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:54,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:54,208 INFO L225 Difference]: With dead ends: 2850 [2021-06-05 00:44:54,208 INFO L226 Difference]: Without dead ends: 2741 [2021-06-05 00:44:54,208 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2175.9ms TimeCoverageRelationStatistics Valid=484, Invalid=2378, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:44:54,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2021-06-05 00:44:54,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 2719. [2021-06-05 00:44:54,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2719 states, 2718 states have (on average 2.577262693156733) internal successors, (7005), 2718 states have internal predecessors, (7005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:54,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 7005 transitions. [2021-06-05 00:44:54,234 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 7005 transitions. Word has length 119 [2021-06-05 00:44:54,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:54,235 INFO L482 AbstractCegarLoop]: Abstraction has 2719 states and 7005 transitions. [2021-06-05 00:44:54,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:54,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 7005 transitions. [2021-06-05 00:44:54,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:54,237 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:54,237 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:54,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-06-05 00:44:54,237 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 00:44:54,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:54,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1718417405, now seen corresponding path program 168 times [2021-06-05 00:44:54,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:54,237 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623635494] [2021-06-05 00:44:54,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:54,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:54,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:54,802 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:54,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623635494] [2021-06-05 00:44:54,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623635494] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:54,802 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:54,802 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:54,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380592533] [2021-06-05 00:44:54,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:54,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:54,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:54,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:54,803 INFO L87 Difference]: Start difference. First operand 2719 states and 7005 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:57,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:57,105 INFO L93 Difference]: Finished difference Result 2880 states and 7307 transitions. [2021-06-05 00:44:57,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:44:57,105 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:57,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:57,107 INFO L225 Difference]: With dead ends: 2880 [2021-06-05 00:44:57,107 INFO L226 Difference]: Without dead ends: 2775 [2021-06-05 00:44:57,107 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 2041.9ms TimeCoverageRelationStatistics Valid=471, Invalid=2391, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:44:57,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2021-06-05 00:44:57,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2721. [2021-06-05 00:44:57,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2721 states, 2720 states have (on average 2.5764705882352943) internal successors, (7008), 2720 states have internal predecessors, (7008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:57,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 7008 transitions. [2021-06-05 00:44:57,134 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 7008 transitions. Word has length 119 [2021-06-05 00:44:57,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:44:57,134 INFO L482 AbstractCegarLoop]: Abstraction has 2721 states and 7008 transitions. [2021-06-05 00:44:57,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:57,134 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 7008 transitions. [2021-06-05 00:44:57,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:44:57,136 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:44:57,136 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:44:57,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-06-05 00:44:57,136 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 00:44:57,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:44:57,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1776499017, now seen corresponding path program 169 times [2021-06-05 00:44:57,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:44:57,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412300266] [2021-06-05 00:44:57,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:44:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:44:57,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:44:57,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:44:57,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412300266] [2021-06-05 00:44:57,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412300266] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:44:57,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:44:57,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:44:57,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756883723] [2021-06-05 00:44:57,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:44:57,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:44:57,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:44:57,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:44:57,751 INFO L87 Difference]: Start difference. First operand 2721 states and 7008 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:44:59,030 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-05 00:44:59,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:44:59,974 INFO L93 Difference]: Finished difference Result 2836 states and 7211 transitions. [2021-06-05 00:44:59,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:44:59,975 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:44:59,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:44:59,976 INFO L225 Difference]: With dead ends: 2836 [2021-06-05 00:44:59,976 INFO L226 Difference]: Without dead ends: 2689 [2021-06-05 00:44:59,977 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 2084.2ms TimeCoverageRelationStatistics Valid=466, Invalid=2290, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:44:59,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2689 states. [2021-06-05 00:44:59,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2689 to 2671. [2021-06-05 00:44:59,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2671 states, 2670 states have (on average 2.58876404494382) internal successors, (6912), 2670 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:00,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2671 states to 2671 states and 6912 transitions. [2021-06-05 00:45:00,002 INFO L78 Accepts]: Start accepts. Automaton has 2671 states and 6912 transitions. Word has length 119 [2021-06-05 00:45:00,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:00,002 INFO L482 AbstractCegarLoop]: Abstraction has 2671 states and 6912 transitions. [2021-06-05 00:45:00,002 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:00,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2671 states and 6912 transitions. [2021-06-05 00:45:00,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:00,004 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:00,004 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:00,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-06-05 00:45:00,004 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 00:45:00,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:00,004 INFO L82 PathProgramCache]: Analyzing trace with hash -2049675987, now seen corresponding path program 170 times [2021-06-05 00:45:00,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:00,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398867319] [2021-06-05 00:45:00,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:00,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:00,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:00,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398867319] [2021-06-05 00:45:00,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398867319] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:00,594 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:00,594 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:00,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743701765] [2021-06-05 00:45:00,594 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:00,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:00,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:00,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:00,595 INFO L87 Difference]: Start difference. First operand 2671 states and 6912 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:01,728 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-06-05 00:45:01,915 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-05 00:45:02,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:02,804 INFO L93 Difference]: Finished difference Result 2825 states and 7191 transitions. [2021-06-05 00:45:02,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:45:02,805 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:02,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:02,807 INFO L225 Difference]: With dead ends: 2825 [2021-06-05 00:45:02,807 INFO L226 Difference]: Without dead ends: 2671 [2021-06-05 00:45:02,808 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 2011.2ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:45:02,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2021-06-05 00:45:02,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2655. [2021-06-05 00:45:02,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2655 states, 2654 states have (on average 2.593067068575735) internal successors, (6882), 2654 states have internal predecessors, (6882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:02,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 6882 transitions. [2021-06-05 00:45:02,834 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 6882 transitions. Word has length 119 [2021-06-05 00:45:02,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:02,834 INFO L482 AbstractCegarLoop]: Abstraction has 2655 states and 6882 transitions. [2021-06-05 00:45:02,835 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:02,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 6882 transitions. [2021-06-05 00:45:02,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:02,836 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:02,837 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:02,837 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-06-05 00:45:02,837 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 00:45:02,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:02,837 INFO L82 PathProgramCache]: Analyzing trace with hash 61417919, now seen corresponding path program 171 times [2021-06-05 00:45:02,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:02,837 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623642395] [2021-06-05 00:45:02,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:03,485 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 00:45:03,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:03,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623642395] [2021-06-05 00:45:03,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623642395] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:03,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:03,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:03,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733278480] [2021-06-05 00:45:03,485 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:03,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:03,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:03,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:03,486 INFO L87 Difference]: Start difference. First operand 2655 states and 6882 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:04,437 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2021-06-05 00:45:04,710 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-06-05 00:45:04,926 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 00:45:05,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:05,824 INFO L93 Difference]: Finished difference Result 2903 states and 7378 transitions. [2021-06-05 00:45:05,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:45:05,824 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:05,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:05,827 INFO L225 Difference]: With dead ends: 2903 [2021-06-05 00:45:05,827 INFO L226 Difference]: Without dead ends: 2765 [2021-06-05 00:45:05,827 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 2079.8ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:45:05,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2021-06-05 00:45:05,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 2667. [2021-06-05 00:45:05,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2666 states have (on average 2.589647411852963) internal successors, (6904), 2666 states have internal predecessors, (6904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:05,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 6904 transitions. [2021-06-05 00:45:05,855 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 6904 transitions. Word has length 119 [2021-06-05 00:45:05,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:05,855 INFO L482 AbstractCegarLoop]: Abstraction has 2667 states and 6904 transitions. [2021-06-05 00:45:05,855 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:05,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 6904 transitions. [2021-06-05 00:45:05,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:05,857 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:05,857 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:05,857 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-06-05 00:45:05,857 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 00:45:05,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:05,858 INFO L82 PathProgramCache]: Analyzing trace with hash 580778689, now seen corresponding path program 172 times [2021-06-05 00:45:05,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:05,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360816211] [2021-06-05 00:45:05,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:06,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:06,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:06,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360816211] [2021-06-05 00:45:06,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360816211] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:06,506 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:06,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:06,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234491151] [2021-06-05 00:45:06,507 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:06,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:06,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:06,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:06,507 INFO L87 Difference]: Start difference. First operand 2667 states and 6904 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:07,928 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-06-05 00:45:09,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:09,020 INFO L93 Difference]: Finished difference Result 2927 states and 7438 transitions. [2021-06-05 00:45:09,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:45:09,020 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:09,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:09,023 INFO L225 Difference]: With dead ends: 2927 [2021-06-05 00:45:09,023 INFO L226 Difference]: Without dead ends: 2795 [2021-06-05 00:45:09,023 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2223.5ms TimeCoverageRelationStatistics Valid=481, Invalid=2381, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:45:09,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2021-06-05 00:45:09,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2669. [2021-06-05 00:45:09,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 2668 states have (on average 2.588830584707646) internal successors, (6907), 2668 states have internal predecessors, (6907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:09,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 6907 transitions. [2021-06-05 00:45:09,051 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 6907 transitions. Word has length 119 [2021-06-05 00:45:09,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:09,051 INFO L482 AbstractCegarLoop]: Abstraction has 2669 states and 6907 transitions. [2021-06-05 00:45:09,051 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:09,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 6907 transitions. [2021-06-05 00:45:09,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:09,053 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:09,053 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:09,053 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-06-05 00:45:09,054 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 00:45:09,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:09,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1734336803, now seen corresponding path program 173 times [2021-06-05 00:45:09,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:09,054 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869299841] [2021-06-05 00:45:09,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:09,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:09,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:09,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869299841] [2021-06-05 00:45:09,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869299841] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:09,689 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:09,689 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:09,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449559501] [2021-06-05 00:45:09,689 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:09,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:09,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:09,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:09,690 INFO L87 Difference]: Start difference. First operand 2669 states and 6907 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:10,839 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-06-05 00:45:12,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:12,187 INFO L93 Difference]: Finished difference Result 3096 states and 7769 transitions. [2021-06-05 00:45:12,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-05 00:45:12,187 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:12,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:12,190 INFO L225 Difference]: With dead ends: 3096 [2021-06-05 00:45:12,190 INFO L226 Difference]: Without dead ends: 2943 [2021-06-05 00:45:12,190 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 2305.4ms TimeCoverageRelationStatistics Valid=536, Invalid=2656, Unknown=0, NotChecked=0, Total=3192 [2021-06-05 00:45:12,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states. [2021-06-05 00:45:12,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 2661. [2021-06-05 00:45:12,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2660 states have (on average 2.5913533834586464) internal successors, (6893), 2660 states have internal predecessors, (6893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:12,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 6893 transitions. [2021-06-05 00:45:12,222 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 6893 transitions. Word has length 119 [2021-06-05 00:45:12,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:12,222 INFO L482 AbstractCegarLoop]: Abstraction has 2661 states and 6893 transitions. [2021-06-05 00:45:12,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:12,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 6893 transitions. [2021-06-05 00:45:12,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:12,225 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:12,225 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:12,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-06-05 00:45:12,225 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 00:45:12,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:12,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1693291895, now seen corresponding path program 174 times [2021-06-05 00:45:12,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:12,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932665945] [2021-06-05 00:45:12,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:12,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:12,871 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:12,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932665945] [2021-06-05 00:45:12,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932665945] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:12,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:12,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:12,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074314067] [2021-06-05 00:45:12,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:12,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:12,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:12,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:12,871 INFO L87 Difference]: Start difference. First operand 2661 states and 6893 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:14,166 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-06-05 00:45:14,638 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-06-05 00:45:15,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:15,066 INFO L93 Difference]: Finished difference Result 2850 states and 7269 transitions. [2021-06-05 00:45:15,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:45:15,066 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:15,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:15,069 INFO L225 Difference]: With dead ends: 2850 [2021-06-05 00:45:15,069 INFO L226 Difference]: Without dead ends: 2743 [2021-06-05 00:45:15,069 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 2042.1ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:45:15,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2021-06-05 00:45:15,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 2657. [2021-06-05 00:45:15,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2657 states, 2656 states have (on average 2.5922439759036147) internal successors, (6885), 2656 states have internal predecessors, (6885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:15,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 6885 transitions. [2021-06-05 00:45:15,096 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 6885 transitions. Word has length 119 [2021-06-05 00:45:15,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:15,096 INFO L482 AbstractCegarLoop]: Abstraction has 2657 states and 6885 transitions. [2021-06-05 00:45:15,096 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:15,096 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 6885 transitions. [2021-06-05 00:45:15,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:15,098 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:15,098 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:15,098 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-06-05 00:45:15,098 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 00:45:15,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:15,098 INFO L82 PathProgramCache]: Analyzing trace with hash 373296891, now seen corresponding path program 175 times [2021-06-05 00:45:15,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:15,098 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338709358] [2021-06-05 00:45:15,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:15,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:15,738 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:15,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338709358] [2021-06-05 00:45:15,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338709358] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:15,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:15,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:15,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941331377] [2021-06-05 00:45:15,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:15,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:15,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:15,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:15,739 INFO L87 Difference]: Start difference. First operand 2657 states and 6885 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:16,849 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-06-05 00:45:17,038 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-06-05 00:45:17,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:17,896 INFO L93 Difference]: Finished difference Result 2851 states and 7260 transitions. [2021-06-05 00:45:17,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:45:17,896 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:17,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:17,898 INFO L225 Difference]: With dead ends: 2851 [2021-06-05 00:45:17,898 INFO L226 Difference]: Without dead ends: 2713 [2021-06-05 00:45:17,898 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 2038.7ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:45:17,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2021-06-05 00:45:17,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2661. [2021-06-05 00:45:17,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2660 states have (on average 2.5913533834586464) internal successors, (6893), 2660 states have internal predecessors, (6893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:17,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 6893 transitions. [2021-06-05 00:45:17,924 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 6893 transitions. Word has length 119 [2021-06-05 00:45:17,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:17,924 INFO L482 AbstractCegarLoop]: Abstraction has 2661 states and 6893 transitions. [2021-06-05 00:45:17,924 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:17,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 6893 transitions. [2021-06-05 00:45:17,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:17,926 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:17,926 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:17,926 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-06-05 00:45:17,926 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 00:45:17,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:17,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1499705475, now seen corresponding path program 176 times [2021-06-05 00:45:17,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:17,926 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153299121] [2021-06-05 00:45:17,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:18,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:18,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:18,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153299121] [2021-06-05 00:45:18,554 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153299121] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:18,554 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:18,554 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:18,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610340374] [2021-06-05 00:45:18,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:18,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:18,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:18,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:18,555 INFO L87 Difference]: Start difference. First operand 2661 states and 6893 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:20,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:20,642 INFO L93 Difference]: Finished difference Result 2810 states and 7179 transitions. [2021-06-05 00:45:20,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:45:20,642 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:20,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:20,645 INFO L225 Difference]: With dead ends: 2810 [2021-06-05 00:45:20,645 INFO L226 Difference]: Without dead ends: 2705 [2021-06-05 00:45:20,645 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 1937.2ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:45:20,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2021-06-05 00:45:20,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2665. [2021-06-05 00:45:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2664 states have (on average 2.588963963963964) internal successors, (6897), 2664 states have internal predecessors, (6897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:20,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 6897 transitions. [2021-06-05 00:45:20,671 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 6897 transitions. Word has length 119 [2021-06-05 00:45:20,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:20,671 INFO L482 AbstractCegarLoop]: Abstraction has 2665 states and 6897 transitions. [2021-06-05 00:45:20,671 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:20,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 6897 transitions. [2021-06-05 00:45:20,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:20,673 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:20,673 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:20,673 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-06-05 00:45:20,673 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 00:45:20,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:20,673 INFO L82 PathProgramCache]: Analyzing trace with hash 843006233, now seen corresponding path program 177 times [2021-06-05 00:45:20,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:20,673 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258238677] [2021-06-05 00:45:20,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:21,307 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 00:45:21,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:21,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258238677] [2021-06-05 00:45:21,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258238677] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:21,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:21,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:21,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067493177] [2021-06-05 00:45:21,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:21,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:21,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:21,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:21,308 INFO L87 Difference]: Start difference. First operand 2665 states and 6897 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:23,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:23,506 INFO L93 Difference]: Finished difference Result 2844 states and 7250 transitions. [2021-06-05 00:45:23,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:45:23,507 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:23,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:23,509 INFO L225 Difference]: With dead ends: 2844 [2021-06-05 00:45:23,509 INFO L226 Difference]: Without dead ends: 2739 [2021-06-05 00:45:23,510 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2017.2ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:45:23,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2021-06-05 00:45:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 2667. [2021-06-05 00:45:23,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2666 states have (on average 2.5881470367591897) internal successors, (6900), 2666 states have internal predecessors, (6900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:23,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 6900 transitions. [2021-06-05 00:45:23,536 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 6900 transitions. Word has length 119 [2021-06-05 00:45:23,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:23,536 INFO L482 AbstractCegarLoop]: Abstraction has 2667 states and 6900 transitions. [2021-06-05 00:45:23,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:23,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 6900 transitions. [2021-06-05 00:45:23,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:23,538 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:23,538 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:23,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-06-05 00:45:23,538 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 00:45:23,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:23,539 INFO L82 PathProgramCache]: Analyzing trace with hash 429237837, now seen corresponding path program 178 times [2021-06-05 00:45:23,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:23,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107858284] [2021-06-05 00:45:23,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:24,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:24,182 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:24,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107858284] [2021-06-05 00:45:24,183 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107858284] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:24,183 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:24,183 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:24,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90769616] [2021-06-05 00:45:24,183 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:24,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:24,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:24,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:24,183 INFO L87 Difference]: Start difference. First operand 2667 states and 6900 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:25,459 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 00:45:26,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:26,288 INFO L93 Difference]: Finished difference Result 2800 states and 7154 transitions. [2021-06-05 00:45:26,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:45:26,289 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:26,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:26,291 INFO L225 Difference]: With dead ends: 2800 [2021-06-05 00:45:26,291 INFO L226 Difference]: Without dead ends: 2679 [2021-06-05 00:45:26,292 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 1981.2ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:45:26,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2679 states. [2021-06-05 00:45:26,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2679 to 2643. [2021-06-05 00:45:26,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2642 states have (on average 2.595760787282362) internal successors, (6858), 2642 states have internal predecessors, (6858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:26,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 6858 transitions. [2021-06-05 00:45:26,320 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 6858 transitions. Word has length 119 [2021-06-05 00:45:26,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:26,320 INFO L482 AbstractCegarLoop]: Abstraction has 2643 states and 6858 transitions. [2021-06-05 00:45:26,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:26,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 6858 transitions. [2021-06-05 00:45:26,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:26,322 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:26,322 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:26,322 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-06-05 00:45:26,322 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 00:45:26,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:26,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1564224277, now seen corresponding path program 179 times [2021-06-05 00:45:26,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:26,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900168930] [2021-06-05 00:45:26,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:26,521 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 00:45:26,521 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:26,521 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900168930] [2021-06-05 00:45:26,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900168930] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:26,521 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:26,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 00:45:26,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903181671] [2021-06-05 00:45:26,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 00:45:26,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:26,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 00:45:26,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:45:26,522 INFO L87 Difference]: Start difference. First operand 2643 states and 6858 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:26,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:26,805 INFO L93 Difference]: Finished difference Result 3437 states and 8645 transitions. [2021-06-05 00:45:26,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 00:45:26,806 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:26,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:26,809 INFO L225 Difference]: With dead ends: 3437 [2021-06-05 00:45:26,809 INFO L226 Difference]: Without dead ends: 3437 [2021-06-05 00:45:26,809 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 269.1ms TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2021-06-05 00:45:26,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3437 states. [2021-06-05 00:45:26,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3437 to 2701. [2021-06-05 00:45:26,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2700 states have (on average 2.553703703703704) internal successors, (6895), 2700 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:26,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 6895 transitions. [2021-06-05 00:45:26,840 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 6895 transitions. Word has length 119 [2021-06-05 00:45:26,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:26,840 INFO L482 AbstractCegarLoop]: Abstraction has 2701 states and 6895 transitions. [2021-06-05 00:45:26,840 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:26,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 6895 transitions. [2021-06-05 00:45:26,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:26,842 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:26,842 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:26,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-06-05 00:45:26,842 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 00:45:26,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:26,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1813788137, now seen corresponding path program 180 times [2021-06-05 00:45:26,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:26,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618089010] [2021-06-05 00:45:26,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:27,431 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 00:45:27,431 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:27,431 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618089010] [2021-06-05 00:45:27,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618089010] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:27,431 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:27,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:27,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762808715] [2021-06-05 00:45:27,432 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:27,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:27,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:27,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:27,432 INFO L87 Difference]: Start difference. First operand 2701 states and 6895 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:30,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:30,108 INFO L93 Difference]: Finished difference Result 3527 states and 8819 transitions. [2021-06-05 00:45:30,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:45:30,109 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:30,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:30,112 INFO L225 Difference]: With dead ends: 3527 [2021-06-05 00:45:30,112 INFO L226 Difference]: Without dead ends: 3361 [2021-06-05 00:45:30,112 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 2390.4ms TimeCoverageRelationStatistics Valid=576, Invalid=2964, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:45:30,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3361 states. [2021-06-05 00:45:30,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3361 to 2701. [2021-06-05 00:45:30,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2700 states have (on average 2.5462962962962963) internal successors, (6875), 2700 states have internal predecessors, (6875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:30,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 6875 transitions. [2021-06-05 00:45:30,141 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 6875 transitions. Word has length 119 [2021-06-05 00:45:30,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:30,141 INFO L482 AbstractCegarLoop]: Abstraction has 2701 states and 6875 transitions. [2021-06-05 00:45:30,141 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:30,141 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 6875 transitions. [2021-06-05 00:45:30,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:30,143 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:30,143 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:30,143 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-06-05 00:45:30,143 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 00:45:30,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:30,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1411648485, now seen corresponding path program 181 times [2021-06-05 00:45:30,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:30,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573457170] [2021-06-05 00:45:30,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:30,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:30,756 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:30,756 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573457170] [2021-06-05 00:45:30,756 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573457170] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:30,756 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:30,756 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:30,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977303534] [2021-06-05 00:45:30,756 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:30,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:30,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:30,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:30,757 INFO L87 Difference]: Start difference. First operand 2701 states and 6875 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:33,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:33,608 INFO L93 Difference]: Finished difference Result 3799 states and 9577 transitions. [2021-06-05 00:45:33,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:45:33,608 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:33,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:33,612 INFO L225 Difference]: With dead ends: 3799 [2021-06-05 00:45:33,612 INFO L226 Difference]: Without dead ends: 3408 [2021-06-05 00:45:33,612 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 2495.5ms TimeCoverageRelationStatistics Valid=619, Invalid=2921, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:45:33,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3408 states. [2021-06-05 00:45:33,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3408 to 2761. [2021-06-05 00:45:33,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2761 states, 2760 states have (on average 2.530072463768116) internal successors, (6983), 2760 states have internal predecessors, (6983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:33,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2761 states to 2761 states and 6983 transitions. [2021-06-05 00:45:33,641 INFO L78 Accepts]: Start accepts. Automaton has 2761 states and 6983 transitions. Word has length 119 [2021-06-05 00:45:33,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:33,641 INFO L482 AbstractCegarLoop]: Abstraction has 2761 states and 6983 transitions. [2021-06-05 00:45:33,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2761 states and 6983 transitions. [2021-06-05 00:45:33,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:33,643 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:33,643 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:33,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-06-05 00:45:33,644 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 00:45:33,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:33,644 INFO L82 PathProgramCache]: Analyzing trace with hash -203223121, now seen corresponding path program 182 times [2021-06-05 00:45:33,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:33,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107402978] [2021-06-05 00:45:33,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:34,234 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 00:45:34,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:34,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107402978] [2021-06-05 00:45:34,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107402978] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:34,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:34,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:34,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583960802] [2021-06-05 00:45:34,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:34,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:34,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:34,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:34,235 INFO L87 Difference]: Start difference. First operand 2761 states and 6983 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:35,341 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-06-05 00:45:37,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:37,379 INFO L93 Difference]: Finished difference Result 3514 states and 8770 transitions. [2021-06-05 00:45:37,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-05 00:45:37,379 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:37,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:37,382 INFO L225 Difference]: With dead ends: 3514 [2021-06-05 00:45:37,382 INFO L226 Difference]: Without dead ends: 3108 [2021-06-05 00:45:37,382 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 2675.4ms TimeCoverageRelationStatistics Valid=640, Invalid=3142, Unknown=0, NotChecked=0, Total=3782 [2021-06-05 00:45:37,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2021-06-05 00:45:37,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 2461. [2021-06-05 00:45:37,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2461 states, 2460 states have (on average 2.519918699186992) internal successors, (6199), 2460 states have internal predecessors, (6199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:37,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 6199 transitions. [2021-06-05 00:45:37,410 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 6199 transitions. Word has length 119 [2021-06-05 00:45:37,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:37,410 INFO L482 AbstractCegarLoop]: Abstraction has 2461 states and 6199 transitions. [2021-06-05 00:45:37,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:37,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 6199 transitions. [2021-06-05 00:45:37,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:37,412 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:37,412 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:37,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-06-05 00:45:37,412 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 00:45:37,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:37,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1806453033, now seen corresponding path program 183 times [2021-06-05 00:45:37,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:37,412 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448773452] [2021-06-05 00:45:37,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:38,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:38,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:38,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448773452] [2021-06-05 00:45:38,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448773452] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:38,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:38,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:38,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171455526] [2021-06-05 00:45:38,040 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:38,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:38,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:38,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:38,040 INFO L87 Difference]: Start difference. First operand 2461 states and 6199 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:39,481 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-05 00:45:40,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:40,865 INFO L93 Difference]: Finished difference Result 2927 states and 7215 transitions. [2021-06-05 00:45:40,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:45:40,866 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:40,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:40,868 INFO L225 Difference]: With dead ends: 2927 [2021-06-05 00:45:40,868 INFO L226 Difference]: Without dead ends: 2747 [2021-06-05 00:45:40,869 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 2526.2ms TimeCoverageRelationStatistics Valid=629, Invalid=2911, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:45:40,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states. [2021-06-05 00:45:40,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 2455. [2021-06-05 00:45:40,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2455 states, 2454 states have (on average 2.519967400162999) internal successors, (6184), 2454 states have internal predecessors, (6184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:40,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 6184 transitions. [2021-06-05 00:45:40,894 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 6184 transitions. Word has length 119 [2021-06-05 00:45:40,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:40,894 INFO L482 AbstractCegarLoop]: Abstraction has 2455 states and 6184 transitions. [2021-06-05 00:45:40,894 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:40,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 6184 transitions. [2021-06-05 00:45:40,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:40,896 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:40,896 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:40,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-06-05 00:45:40,896 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 00:45:40,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:40,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1102137719, now seen corresponding path program 184 times [2021-06-05 00:45:40,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:40,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246572554] [2021-06-05 00:45:40,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:41,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:41,567 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:41,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246572554] [2021-06-05 00:45:41,567 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246572554] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:41,567 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:41,567 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:41,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30649626] [2021-06-05 00:45:41,568 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:41,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:41,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:41,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:41,568 INFO L87 Difference]: Start difference. First operand 2455 states and 6184 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:42,419 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-06-05 00:45:42,976 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-05 00:45:44,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:44,339 INFO L93 Difference]: Finished difference Result 2827 states and 6921 transitions. [2021-06-05 00:45:44,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:45:44,339 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:44,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:44,341 INFO L225 Difference]: With dead ends: 2827 [2021-06-05 00:45:44,341 INFO L226 Difference]: Without dead ends: 2617 [2021-06-05 00:45:44,342 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 2494.3ms TimeCoverageRelationStatistics Valid=602, Invalid=2820, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:45:44,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2021-06-05 00:45:44,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 2445. [2021-06-05 00:45:44,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2445 states, 2444 states have (on average 2.526595744680851) internal successors, (6175), 2444 states have internal predecessors, (6175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:44,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2445 states to 2445 states and 6175 transitions. [2021-06-05 00:45:44,366 INFO L78 Accepts]: Start accepts. Automaton has 2445 states and 6175 transitions. Word has length 119 [2021-06-05 00:45:44,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:44,366 INFO L482 AbstractCegarLoop]: Abstraction has 2445 states and 6175 transitions. [2021-06-05 00:45:44,366 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:44,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2445 states and 6175 transitions. [2021-06-05 00:45:44,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:44,368 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:44,368 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:44,368 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-06-05 00:45:44,368 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 00:45:44,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:44,369 INFO L82 PathProgramCache]: Analyzing trace with hash 701321313, now seen corresponding path program 185 times [2021-06-05 00:45:44,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:44,369 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955572901] [2021-06-05 00:45:44,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:45,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:45,022 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:45,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955572901] [2021-06-05 00:45:45,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955572901] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:45,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:45,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:45,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988100380] [2021-06-05 00:45:45,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:45,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:45,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:45,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:45,023 INFO L87 Difference]: Start difference. First operand 2445 states and 6175 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:46,416 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 00:45:47,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:47,841 INFO L93 Difference]: Finished difference Result 2771 states and 6813 transitions. [2021-06-05 00:45:47,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:45:47,842 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:47,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:47,844 INFO L225 Difference]: With dead ends: 2771 [2021-06-05 00:45:47,844 INFO L226 Difference]: Without dead ends: 2616 [2021-06-05 00:45:47,844 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 2437.3ms TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:45:47,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2021-06-05 00:45:47,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 2451. [2021-06-05 00:45:47,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2451 states, 2450 states have (on average 2.522448979591837) internal successors, (6180), 2450 states have internal predecessors, (6180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:47,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 2451 states and 6180 transitions. [2021-06-05 00:45:47,868 INFO L78 Accepts]: Start accepts. Automaton has 2451 states and 6180 transitions. Word has length 119 [2021-06-05 00:45:47,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:47,868 INFO L482 AbstractCegarLoop]: Abstraction has 2451 states and 6180 transitions. [2021-06-05 00:45:47,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:47,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2451 states and 6180 transitions. [2021-06-05 00:45:47,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:47,870 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:47,870 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:47,870 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-06-05 00:45:47,870 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 00:45:47,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:47,870 INFO L82 PathProgramCache]: Analyzing trace with hash 696903173, now seen corresponding path program 186 times [2021-06-05 00:45:47,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:47,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644025304] [2021-06-05 00:45:47,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:48,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:48,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:48,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644025304] [2021-06-05 00:45:48,504 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644025304] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:48,504 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:48,504 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:48,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410559598] [2021-06-05 00:45:48,504 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:48,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:48,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:48,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:48,504 INFO L87 Difference]: Start difference. First operand 2451 states and 6180 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:51,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:51,382 INFO L93 Difference]: Finished difference Result 3667 states and 9187 transitions. [2021-06-05 00:45:51,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:45:51,382 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:51,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:51,385 INFO L225 Difference]: With dead ends: 3667 [2021-06-05 00:45:51,386 INFO L226 Difference]: Without dead ends: 3522 [2021-06-05 00:45:51,386 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 2478.8ms TimeCoverageRelationStatistics Valid=580, Invalid=2960, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:45:51,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2021-06-05 00:45:51,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 2739. [2021-06-05 00:45:51,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2739 states, 2738 states have (on average 2.547114682249817) internal successors, (6974), 2738 states have internal predecessors, (6974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:51,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 6974 transitions. [2021-06-05 00:45:51,417 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 6974 transitions. Word has length 119 [2021-06-05 00:45:51,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:51,417 INFO L482 AbstractCegarLoop]: Abstraction has 2739 states and 6974 transitions. [2021-06-05 00:45:51,417 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:51,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 6974 transitions. [2021-06-05 00:45:51,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:51,419 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:51,419 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:51,419 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-06-05 00:45:51,420 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 00:45:51,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:51,420 INFO L82 PathProgramCache]: Analyzing trace with hash 222196871, now seen corresponding path program 187 times [2021-06-05 00:45:51,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:51,420 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094147513] [2021-06-05 00:45:51,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:52,014 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 00:45:52,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:52,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094147513] [2021-06-05 00:45:52,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094147513] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:52,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:52,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:52,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082680377] [2021-06-05 00:45:52,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:52,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:52,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:52,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:52,015 INFO L87 Difference]: Start difference. First operand 2739 states and 6974 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:53,071 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 00:45:55,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:55,016 INFO L93 Difference]: Finished difference Result 4002 states and 10071 transitions. [2021-06-05 00:45:55,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-05 00:45:55,016 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:55,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:55,019 INFO L225 Difference]: With dead ends: 4002 [2021-06-05 00:45:55,019 INFO L226 Difference]: Without dead ends: 3220 [2021-06-05 00:45:55,019 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 2593.9ms TimeCoverageRelationStatistics Valid=656, Invalid=3250, Unknown=0, NotChecked=0, Total=3906 [2021-06-05 00:45:55,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2021-06-05 00:45:55,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 2475. [2021-06-05 00:45:55,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2475 states, 2474 states have (on average 2.5125303152789007) internal successors, (6216), 2474 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:55,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 6216 transitions. [2021-06-05 00:45:55,045 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 6216 transitions. Word has length 119 [2021-06-05 00:45:55,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:55,045 INFO L482 AbstractCegarLoop]: Abstraction has 2475 states and 6216 transitions. [2021-06-05 00:45:55,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:55,045 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 6216 transitions. [2021-06-05 00:45:55,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:55,047 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:55,047 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:55,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-06-05 00:45:55,047 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 00:45:55,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:55,047 INFO L82 PathProgramCache]: Analyzing trace with hash -221867791, now seen corresponding path program 188 times [2021-06-05 00:45:55,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:55,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129298130] [2021-06-05 00:45:55,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:55,647 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 00:45:55,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:55,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129298130] [2021-06-05 00:45:55,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129298130] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:55,647 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:55,647 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:55,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479092583] [2021-06-05 00:45:55,647 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:55,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:55,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:55,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:55,648 INFO L87 Difference]: Start difference. First operand 2475 states and 6216 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:57,194 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-05 00:45:58,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:58,603 INFO L93 Difference]: Finished difference Result 2981 states and 7349 transitions. [2021-06-05 00:45:58,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:45:58,603 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:58,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:58,605 INFO L225 Difference]: With dead ends: 2981 [2021-06-05 00:45:58,606 INFO L226 Difference]: Without dead ends: 2774 [2021-06-05 00:45:58,606 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 2494.6ms TimeCoverageRelationStatistics Valid=629, Invalid=2911, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:45:58,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2021-06-05 00:45:58,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2415. [2021-06-05 00:45:58,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2415 states, 2414 states have (on average 2.5269262634631318) internal successors, (6100), 2414 states have internal predecessors, (6100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:58,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 6100 transitions. [2021-06-05 00:45:58,631 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 6100 transitions. Word has length 119 [2021-06-05 00:45:58,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:58,631 INFO L482 AbstractCegarLoop]: Abstraction has 2415 states and 6100 transitions. [2021-06-05 00:45:58,631 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:58,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 6100 transitions. [2021-06-05 00:45:58,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:58,633 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:58,633 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:58,633 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-06-05 00:45:58,633 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 00:45:58,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:58,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1021977465, now seen corresponding path program 189 times [2021-06-05 00:45:58,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:58,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495707535] [2021-06-05 00:45:58,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:58,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:45:58,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:58,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495707535] [2021-06-05 00:45:58,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495707535] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:58,875 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:58,875 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 00:45:58,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351044357] [2021-06-05 00:45:58,875 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 00:45:58,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:58,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 00:45:58,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:45:58,875 INFO L87 Difference]: Start difference. First operand 2415 states and 6100 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:59,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:45:59,311 INFO L93 Difference]: Finished difference Result 2871 states and 7050 transitions. [2021-06-05 00:45:59,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 00:45:59,312 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:45:59,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:45:59,314 INFO L225 Difference]: With dead ends: 2871 [2021-06-05 00:45:59,314 INFO L226 Difference]: Without dead ends: 2815 [2021-06-05 00:45:59,314 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 411.7ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-06-05 00:45:59,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2021-06-05 00:45:59,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2521. [2021-06-05 00:45:59,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 2520 states have (on average 2.5186507936507936) internal successors, (6347), 2520 states have internal predecessors, (6347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:59,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 6347 transitions. [2021-06-05 00:45:59,338 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 6347 transitions. Word has length 119 [2021-06-05 00:45:59,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:45:59,338 INFO L482 AbstractCegarLoop]: Abstraction has 2521 states and 6347 transitions. [2021-06-05 00:45:59,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:45:59,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 6347 transitions. [2021-06-05 00:45:59,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:45:59,340 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:45:59,340 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:45:59,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-06-05 00:45:59,340 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 00:45:59,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:45:59,341 INFO L82 PathProgramCache]: Analyzing trace with hash -803902033, now seen corresponding path program 190 times [2021-06-05 00:45:59,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:45:59,341 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159047778] [2021-06-05 00:45:59,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:45:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:45:59,962 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 00:45:59,963 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:45:59,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159047778] [2021-06-05 00:45:59,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159047778] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:45:59,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:45:59,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:45:59,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729264845] [2021-06-05 00:45:59,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:45:59,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:45:59,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:45:59,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:45:59,964 INFO L87 Difference]: Start difference. First operand 2521 states and 6347 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:01,201 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 00:46:02,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:02,535 INFO L93 Difference]: Finished difference Result 2919 states and 7159 transitions. [2021-06-05 00:46:02,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:46:02,536 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:02,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:02,538 INFO L225 Difference]: With dead ends: 2919 [2021-06-05 00:46:02,538 INFO L226 Difference]: Without dead ends: 2766 [2021-06-05 00:46:02,539 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 2339.2ms TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:46:02,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2021-06-05 00:46:02,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 2561. [2021-06-05 00:46:02,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2561 states, 2560 states have (on average 2.515234375) internal successors, (6439), 2560 states have internal predecessors, (6439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:02,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 6439 transitions. [2021-06-05 00:46:02,565 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 6439 transitions. Word has length 119 [2021-06-05 00:46:02,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:02,565 INFO L482 AbstractCegarLoop]: Abstraction has 2561 states and 6439 transitions. [2021-06-05 00:46:02,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:02,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 6439 transitions. [2021-06-05 00:46:02,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:02,568 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:02,568 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:02,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-06-05 00:46:02,568 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 00:46:02,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:02,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1318576291, now seen corresponding path program 191 times [2021-06-05 00:46:02,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:02,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857547253] [2021-06-05 00:46:02,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:03,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:03,156 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:03,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857547253] [2021-06-05 00:46:03,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857547253] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:03,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:03,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:03,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810162791] [2021-06-05 00:46:03,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:03,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:03,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:03,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:03,157 INFO L87 Difference]: Start difference. First operand 2561 states and 6439 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:06,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:06,123 INFO L93 Difference]: Finished difference Result 2961 states and 7246 transitions. [2021-06-05 00:46:06,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:46:06,124 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:06,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:06,126 INFO L225 Difference]: With dead ends: 2961 [2021-06-05 00:46:06,126 INFO L226 Difference]: Without dead ends: 2802 [2021-06-05 00:46:06,127 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 2584.1ms TimeCoverageRelationStatistics Valid=615, Invalid=2925, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:46:06,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2802 states. [2021-06-05 00:46:06,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2802 to 2565. [2021-06-05 00:46:06,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2565 states, 2564 states have (on average 2.513650546021841) internal successors, (6445), 2564 states have internal predecessors, (6445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:06,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 6445 transitions. [2021-06-05 00:46:06,152 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 6445 transitions. Word has length 119 [2021-06-05 00:46:06,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:06,152 INFO L482 AbstractCegarLoop]: Abstraction has 2565 states and 6445 transitions. [2021-06-05 00:46:06,152 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:06,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 6445 transitions. [2021-06-05 00:46:06,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:06,154 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:06,154 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:06,154 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-06-05 00:46:06,154 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 00:46:06,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:06,154 INFO L82 PathProgramCache]: Analyzing trace with hash 904807895, now seen corresponding path program 192 times [2021-06-05 00:46:06,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:06,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330222480] [2021-06-05 00:46:06,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:06,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:06,805 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:06,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330222480] [2021-06-05 00:46:06,805 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330222480] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:06,805 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:06,805 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:06,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535590303] [2021-06-05 00:46:06,805 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:06,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:06,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:06,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:06,806 INFO L87 Difference]: Start difference. First operand 2565 states and 6445 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:08,168 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 00:46:09,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:09,723 INFO L93 Difference]: Finished difference Result 2937 states and 7187 transitions. [2021-06-05 00:46:09,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 00:46:09,723 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:09,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:09,726 INFO L225 Difference]: With dead ends: 2937 [2021-06-05 00:46:09,726 INFO L226 Difference]: Without dead ends: 2782 [2021-06-05 00:46:09,726 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 2618.2ms TimeCoverageRelationStatistics Valid=632, Invalid=2908, Unknown=0, NotChecked=0, Total=3540 [2021-06-05 00:46:09,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2021-06-05 00:46:09,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 2557. [2021-06-05 00:46:09,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2556 states have (on average 2.514866979655712) internal successors, (6428), 2556 states have internal predecessors, (6428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:09,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 6428 transitions. [2021-06-05 00:46:09,751 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 6428 transitions. Word has length 119 [2021-06-05 00:46:09,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:09,751 INFO L482 AbstractCegarLoop]: Abstraction has 2557 states and 6428 transitions. [2021-06-05 00:46:09,751 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:09,751 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 6428 transitions. [2021-06-05 00:46:09,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:09,753 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:09,753 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:09,753 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-06-05 00:46:09,753 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 00:46:09,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:09,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1137995679, now seen corresponding path program 193 times [2021-06-05 00:46:09,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:09,754 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948593911] [2021-06-05 00:46:09,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:10,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:10,323 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:10,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948593911] [2021-06-05 00:46:10,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948593911] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:10,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:10,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:10,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502346341] [2021-06-05 00:46:10,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:10,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:10,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:10,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:10,324 INFO L87 Difference]: Start difference. First operand 2557 states and 6428 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:13,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:13,055 INFO L93 Difference]: Finished difference Result 4166 states and 10564 transitions. [2021-06-05 00:46:13,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:46:13,055 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:13,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:13,059 INFO L225 Difference]: With dead ends: 4166 [2021-06-05 00:46:13,059 INFO L226 Difference]: Without dead ends: 4021 [2021-06-05 00:46:13,059 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 2318.2ms TimeCoverageRelationStatistics Valid=553, Invalid=2753, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:46:13,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4021 states. [2021-06-05 00:46:13,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4021 to 2893. [2021-06-05 00:46:13,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2892 states have (on average 2.5345781466113415) internal successors, (7330), 2892 states have internal predecessors, (7330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:13,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 7330 transitions. [2021-06-05 00:46:13,094 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 7330 transitions. Word has length 119 [2021-06-05 00:46:13,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:13,094 INFO L482 AbstractCegarLoop]: Abstraction has 2893 states and 7330 transitions. [2021-06-05 00:46:13,094 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:13,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 7330 transitions. [2021-06-05 00:46:13,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:13,096 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:13,096 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:13,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-06-05 00:46:13,096 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 00:46:13,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:13,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1612701981, now seen corresponding path program 194 times [2021-06-05 00:46:13,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:13,097 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31340461] [2021-06-05 00:46:13,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:13,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:13,685 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:13,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31340461] [2021-06-05 00:46:13,685 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31340461] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:13,685 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:13,685 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:13,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727699770] [2021-06-05 00:46:13,685 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:13,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:13,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:13,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:13,686 INFO L87 Difference]: Start difference. First operand 2893 states and 7330 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:16,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:16,974 INFO L93 Difference]: Finished difference Result 4537 states and 11453 transitions. [2021-06-05 00:46:16,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-05 00:46:16,974 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:16,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:16,977 INFO L225 Difference]: With dead ends: 4537 [2021-06-05 00:46:16,978 INFO L226 Difference]: Without dead ends: 3742 [2021-06-05 00:46:16,978 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 2907.5ms TimeCoverageRelationStatistics Valid=696, Invalid=3464, Unknown=0, NotChecked=0, Total=4160 [2021-06-05 00:46:16,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-06-05 00:46:17,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 2629. [2021-06-05 00:46:17,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2629 states, 2628 states have (on average 2.4916286149162863) internal successors, (6548), 2628 states have internal predecessors, (6548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:17,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 6548 transitions. [2021-06-05 00:46:17,011 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 6548 transitions. Word has length 119 [2021-06-05 00:46:17,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:17,011 INFO L482 AbstractCegarLoop]: Abstraction has 2629 states and 6548 transitions. [2021-06-05 00:46:17,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:17,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 6548 transitions. [2021-06-05 00:46:17,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:17,013 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:17,013 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:17,014 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-06-05 00:46:17,014 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 00:46:17,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:17,014 INFO L82 PathProgramCache]: Analyzing trace with hash -377724415, now seen corresponding path program 195 times [2021-06-05 00:46:17,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:17,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017648111] [2021-06-05 00:46:17,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:17,578 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 00:46:17,578 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:17,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017648111] [2021-06-05 00:46:17,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017648111] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:17,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:17,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:17,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853327600] [2021-06-05 00:46:17,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:17,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:17,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:17,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:17,579 INFO L87 Difference]: Start difference. First operand 2629 states and 6548 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:20,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:20,462 INFO L93 Difference]: Finished difference Result 3939 states and 9770 transitions. [2021-06-05 00:46:20,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:46:20,462 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:20,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:20,465 INFO L225 Difference]: With dead ends: 3939 [2021-06-05 00:46:20,465 INFO L226 Difference]: Without dead ends: 3696 [2021-06-05 00:46:20,466 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 2496.2ms TimeCoverageRelationStatistics Valid=602, Invalid=3058, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 00:46:20,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3696 states. [2021-06-05 00:46:20,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3696 to 2545. [2021-06-05 00:46:20,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2545 states, 2544 states have (on average 2.50314465408805) internal successors, (6368), 2544 states have internal predecessors, (6368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:20,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2545 states to 2545 states and 6368 transitions. [2021-06-05 00:46:20,494 INFO L78 Accepts]: Start accepts. Automaton has 2545 states and 6368 transitions. Word has length 119 [2021-06-05 00:46:20,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:20,494 INFO L482 AbstractCegarLoop]: Abstraction has 2545 states and 6368 transitions. [2021-06-05 00:46:20,494 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:20,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2545 states and 6368 transitions. [2021-06-05 00:46:20,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:20,496 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:20,496 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:20,496 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-06-05 00:46:20,496 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 00:46:20,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:20,497 INFO L82 PathProgramCache]: Analyzing trace with hash 662534293, now seen corresponding path program 196 times [2021-06-05 00:46:20,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:20,497 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127950644] [2021-06-05 00:46:20,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:21,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:21,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:21,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127950644] [2021-06-05 00:46:21,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127950644] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:21,079 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:21,079 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:21,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59084025] [2021-06-05 00:46:21,079 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:21,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:21,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:21,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:21,080 INFO L87 Difference]: Start difference. First operand 2545 states and 6368 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:22,139 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-06-05 00:46:24,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:24,122 INFO L93 Difference]: Finished difference Result 4005 states and 10006 transitions. [2021-06-05 00:46:24,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:46:24,123 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:24,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:24,126 INFO L225 Difference]: With dead ends: 4005 [2021-06-05 00:46:24,126 INFO L226 Difference]: Without dead ends: 3860 [2021-06-05 00:46:24,127 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 2589.5ms TimeCoverageRelationStatistics Valid=607, Invalid=3053, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 00:46:24,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3860 states. [2021-06-05 00:46:24,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3860 to 2833. [2021-06-05 00:46:24,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2833 states, 2832 states have (on average 2.528954802259887) internal successors, (7162), 2832 states have internal predecessors, (7162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:24,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 7162 transitions. [2021-06-05 00:46:24,158 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 7162 transitions. Word has length 119 [2021-06-05 00:46:24,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:24,159 INFO L482 AbstractCegarLoop]: Abstraction has 2833 states and 7162 transitions. [2021-06-05 00:46:24,159 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:24,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 7162 transitions. [2021-06-05 00:46:24,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:24,161 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:24,161 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:24,161 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-06-05 00:46:24,161 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 00:46:24,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:24,161 INFO L82 PathProgramCache]: Analyzing trace with hash 187827991, now seen corresponding path program 197 times [2021-06-05 00:46:24,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:24,161 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834011436] [2021-06-05 00:46:24,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:24,778 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 00:46:24,778 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:24,778 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834011436] [2021-06-05 00:46:24,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834011436] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:24,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:24,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:24,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754029652] [2021-06-05 00:46:24,778 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:24,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:24,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:24,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:24,779 INFO L87 Difference]: Start difference. First operand 2833 states and 7162 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:28,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:28,067 INFO L93 Difference]: Finished difference Result 4340 states and 10890 transitions. [2021-06-05 00:46:28,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-05 00:46:28,068 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:28,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:28,071 INFO L225 Difference]: With dead ends: 4340 [2021-06-05 00:46:28,071 INFO L226 Difference]: Without dead ends: 3558 [2021-06-05 00:46:28,071 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 2893.1ms TimeCoverageRelationStatistics Valid=687, Invalid=3345, Unknown=0, NotChecked=0, Total=4032 [2021-06-05 00:46:28,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2021-06-05 00:46:28,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 2569. [2021-06-05 00:46:28,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2569 states, 2568 states have (on average 2.4937694704049846) internal successors, (6404), 2568 states have internal predecessors, (6404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:28,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 6404 transitions. [2021-06-05 00:46:28,099 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 6404 transitions. Word has length 119 [2021-06-05 00:46:28,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:28,100 INFO L482 AbstractCegarLoop]: Abstraction has 2569 states and 6404 transitions. [2021-06-05 00:46:28,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:28,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 6404 transitions. [2021-06-05 00:46:28,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:28,102 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:28,102 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:28,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-06-05 00:46:28,102 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 00:46:28,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:28,102 INFO L82 PathProgramCache]: Analyzing trace with hash -256236671, now seen corresponding path program 198 times [2021-06-05 00:46:28,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:28,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110101599] [2021-06-05 00:46:28,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:28,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:28,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:28,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110101599] [2021-06-05 00:46:28,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110101599] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:28,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:28,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:28,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417190028] [2021-06-05 00:46:28,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:28,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:28,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:28,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:28,725 INFO L87 Difference]: Start difference. First operand 2569 states and 6404 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:30,252 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-06-05 00:46:31,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:31,767 INFO L93 Difference]: Finished difference Result 3307 states and 8140 transitions. [2021-06-05 00:46:31,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:46:31,768 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:31,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:31,771 INFO L225 Difference]: With dead ends: 3307 [2021-06-05 00:46:31,771 INFO L226 Difference]: Without dead ends: 3148 [2021-06-05 00:46:31,771 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 2677.0ms TimeCoverageRelationStatistics Valid=659, Invalid=3001, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 00:46:31,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2021-06-05 00:46:31,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 2509. [2021-06-05 00:46:31,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2509 states, 2508 states have (on average 2.5055821371610847) internal successors, (6284), 2508 states have internal predecessors, (6284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:31,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 6284 transitions. [2021-06-05 00:46:31,797 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 6284 transitions. Word has length 119 [2021-06-05 00:46:31,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:31,797 INFO L482 AbstractCegarLoop]: Abstraction has 2509 states and 6284 transitions. [2021-06-05 00:46:31,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:31,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 6284 transitions. [2021-06-05 00:46:31,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:31,798 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:31,799 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:31,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-06-05 00:46:31,799 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 00:46:31,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:31,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1205146773, now seen corresponding path program 199 times [2021-06-05 00:46:31,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:31,799 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847611496] [2021-06-05 00:46:31,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:32,364 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 00:46:32,364 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:32,364 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847611496] [2021-06-05 00:46:32,364 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847611496] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:32,364 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:32,364 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:32,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623864501] [2021-06-05 00:46:32,365 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:32,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:32,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:32,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:32,365 INFO L87 Difference]: Start difference. First operand 2509 states and 6284 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:35,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:35,234 INFO L93 Difference]: Finished difference Result 3111 states and 7631 transitions. [2021-06-05 00:46:35,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:46:35,235 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:35,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:35,237 INFO L225 Difference]: With dead ends: 3111 [2021-06-05 00:46:35,237 INFO L226 Difference]: Without dead ends: 2952 [2021-06-05 00:46:35,238 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 2488.5ms TimeCoverageRelationStatistics Valid=644, Invalid=3016, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 00:46:35,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-06-05 00:46:35,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2513. [2021-06-05 00:46:35,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2513 states, 2512 states have (on average 2.503980891719745) internal successors, (6290), 2512 states have internal predecessors, (6290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:35,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2513 states to 2513 states and 6290 transitions. [2021-06-05 00:46:35,263 INFO L78 Accepts]: Start accepts. Automaton has 2513 states and 6290 transitions. Word has length 119 [2021-06-05 00:46:35,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:35,263 INFO L482 AbstractCegarLoop]: Abstraction has 2513 states and 6290 transitions. [2021-06-05 00:46:35,263 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:35,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2513 states and 6290 transitions. [2021-06-05 00:46:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:35,265 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:35,265 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:35,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-06-05 00:46:35,265 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 00:46:35,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:35,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1263228385, now seen corresponding path program 200 times [2021-06-05 00:46:35,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:35,266 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824291802] [2021-06-05 00:46:35,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:35,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:35,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:35,880 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824291802] [2021-06-05 00:46:35,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824291802] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:35,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:35,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:35,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69764957] [2021-06-05 00:46:35,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:35,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:35,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:35,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:35,880 INFO L87 Difference]: Start difference. First operand 2513 states and 6290 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:37,193 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-06-05 00:46:37,331 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-06-05 00:46:38,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:38,994 INFO L93 Difference]: Finished difference Result 3085 states and 7567 transitions. [2021-06-05 00:46:38,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-05 00:46:38,994 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:38,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:38,997 INFO L225 Difference]: With dead ends: 3085 [2021-06-05 00:46:38,997 INFO L226 Difference]: Without dead ends: 2888 [2021-06-05 00:46:38,997 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 2702.9ms TimeCoverageRelationStatistics Valid=659, Invalid=3001, Unknown=0, NotChecked=0, Total=3660 [2021-06-05 00:46:39,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2021-06-05 00:46:39,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2461. [2021-06-05 00:46:39,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2461 states, 2460 states have (on average 2.5166666666666666) internal successors, (6191), 2460 states have internal predecessors, (6191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:39,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 6191 transitions. [2021-06-05 00:46:39,022 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 6191 transitions. Word has length 119 [2021-06-05 00:46:39,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:39,022 INFO L482 AbstractCegarLoop]: Abstraction has 2461 states and 6191 transitions. [2021-06-05 00:46:39,022 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:39,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 6191 transitions. [2021-06-05 00:46:39,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:39,024 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:39,024 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:39,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-06-05 00:46:39,024 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 00:46:39,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:39,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1732020677, now seen corresponding path program 201 times [2021-06-05 00:46:39,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:39,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758693320] [2021-06-05 00:46:39,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:39,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:39,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:39,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758693320] [2021-06-05 00:46:39,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758693320] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:39,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:39,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:39,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890193009] [2021-06-05 00:46:39,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:39,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:39,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:39,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:39,604 INFO L87 Difference]: Start difference. First operand 2461 states and 6191 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:40,905 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-05 00:46:42,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:42,283 INFO L93 Difference]: Finished difference Result 2819 states and 6897 transitions. [2021-06-05 00:46:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:46:42,283 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:42,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:42,286 INFO L225 Difference]: With dead ends: 2819 [2021-06-05 00:46:42,286 INFO L226 Difference]: Without dead ends: 2629 [2021-06-05 00:46:42,286 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 2385.3ms TimeCoverageRelationStatistics Valid=602, Invalid=2820, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:46:42,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2021-06-05 00:46:42,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 2421. [2021-06-05 00:46:42,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2420 states have (on average 2.521074380165289) internal successors, (6101), 2420 states have internal predecessors, (6101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:42,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 6101 transitions. [2021-06-05 00:46:42,309 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 6101 transitions. Word has length 119 [2021-06-05 00:46:42,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:42,310 INFO L482 AbstractCegarLoop]: Abstraction has 2421 states and 6101 transitions. [2021-06-05 00:46:42,310 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:42,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 6101 transitions. [2021-06-05 00:46:42,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:42,311 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:42,311 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:42,311 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-06-05 00:46:42,312 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 00:46:42,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:42,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1787237757, now seen corresponding path program 202 times [2021-06-05 00:46:42,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:42,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978556239] [2021-06-05 00:46:42,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:42,552 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 00:46:42,552 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:42,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978556239] [2021-06-05 00:46:42,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978556239] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:42,552 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:42,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-05 00:46:42,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749492813] [2021-06-05 00:46:42,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 00:46:42,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:42,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 00:46:42,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:46:42,553 INFO L87 Difference]: Start difference. First operand 2421 states and 6101 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:42,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:42,966 INFO L93 Difference]: Finished difference Result 1815 states and 4350 transitions. [2021-06-05 00:46:42,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 00:46:42,966 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:42,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:42,968 INFO L225 Difference]: With dead ends: 1815 [2021-06-05 00:46:42,968 INFO L226 Difference]: Without dead ends: 1703 [2021-06-05 00:46:42,968 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 406.2ms TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2021-06-05 00:46:42,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2021-06-05 00:46:42,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1679. [2021-06-05 00:46:42,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1678 states have (on average 2.3969010727056017) internal successors, (4022), 1678 states have internal predecessors, (4022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:42,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 4022 transitions. [2021-06-05 00:46:42,982 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 4022 transitions. Word has length 119 [2021-06-05 00:46:42,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:42,982 INFO L482 AbstractCegarLoop]: Abstraction has 1679 states and 4022 transitions. [2021-06-05 00:46:42,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:42,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 4022 transitions. [2021-06-05 00:46:42,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:42,984 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:42,984 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:42,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-06-05 00:46:42,984 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 00:46:42,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:42,984 INFO L82 PathProgramCache]: Analyzing trace with hash 348133955, now seen corresponding path program 203 times [2021-06-05 00:46:42,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:42,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904890362] [2021-06-05 00:46:42,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:43,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:43,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:43,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904890362] [2021-06-05 00:46:43,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904890362] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:43,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:43,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:43,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961770072] [2021-06-05 00:46:43,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:43,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:43,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:43,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:43,591 INFO L87 Difference]: Start difference. First operand 1679 states and 4022 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:44,922 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 00:46:45,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:45,743 INFO L93 Difference]: Finished difference Result 1838 states and 4333 transitions. [2021-06-05 00:46:45,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:46:45,743 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:45,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:45,744 INFO L225 Difference]: With dead ends: 1838 [2021-06-05 00:46:45,745 INFO L226 Difference]: Without dead ends: 1735 [2021-06-05 00:46:45,745 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1872.8ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:46:45,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2021-06-05 00:46:45,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1713. [2021-06-05 00:46:45,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1712 states have (on average 2.3942757009345796) internal successors, (4099), 1712 states have internal predecessors, (4099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:45,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 4099 transitions. [2021-06-05 00:46:45,759 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 4099 transitions. Word has length 119 [2021-06-05 00:46:45,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:45,759 INFO L482 AbstractCegarLoop]: Abstraction has 1713 states and 4099 transitions. [2021-06-05 00:46:45,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:45,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 4099 transitions. [2021-06-05 00:46:45,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:45,761 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:45,761 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:45,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-06-05 00:46:45,761 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 00:46:45,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:45,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1824355017, now seen corresponding path program 204 times [2021-06-05 00:46:45,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:45,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184931538] [2021-06-05 00:46:45,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:46,352 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 00:46:46,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:46,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184931538] [2021-06-05 00:46:46,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184931538] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:46,352 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:46,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:46,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349924200] [2021-06-05 00:46:46,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:46,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:46,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:46,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:46,353 INFO L87 Difference]: Start difference. First operand 1713 states and 4099 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:48,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:48,563 INFO L93 Difference]: Finished difference Result 1874 states and 4409 transitions. [2021-06-05 00:46:48,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:46:48,564 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:48,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:48,565 INFO L225 Difference]: With dead ends: 1874 [2021-06-05 00:46:48,565 INFO L226 Difference]: Without dead ends: 1769 [2021-06-05 00:46:48,565 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 1945.6ms TimeCoverageRelationStatistics Valid=456, Invalid=2300, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:46:48,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2021-06-05 00:46:48,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1715. [2021-06-05 00:46:48,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1714 states have (on average 2.3932322053675614) internal successors, (4102), 1714 states have internal predecessors, (4102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:48,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 4102 transitions. [2021-06-05 00:46:48,580 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 4102 transitions. Word has length 119 [2021-06-05 00:46:48,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:48,580 INFO L482 AbstractCegarLoop]: Abstraction has 1715 states and 4102 transitions. [2021-06-05 00:46:48,580 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:48,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 4102 transitions. [2021-06-05 00:46:48,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:48,581 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:48,582 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:48,582 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-06-05 00:46:48,582 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 00:46:48,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:48,582 INFO L82 PathProgramCache]: Analyzing trace with hash 2056843883, now seen corresponding path program 205 times [2021-06-05 00:46:48,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:48,582 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044991445] [2021-06-05 00:46:48,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:49,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:49,172 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:49,172 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044991445] [2021-06-05 00:46:49,172 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044991445] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:49,172 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:49,172 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:49,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538660223] [2021-06-05 00:46:49,172 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:49,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:49,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:49,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:49,173 INFO L87 Difference]: Start difference. First operand 1715 states and 4102 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:50,460 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-06-05 00:46:51,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:51,299 INFO L93 Difference]: Finished difference Result 1830 states and 4313 transitions. [2021-06-05 00:46:51,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:46:51,299 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:51,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:51,300 INFO L225 Difference]: With dead ends: 1830 [2021-06-05 00:46:51,300 INFO L226 Difference]: Without dead ends: 1725 [2021-06-05 00:46:51,301 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1920.0ms TimeCoverageRelationStatistics Valid=452, Invalid=2200, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:46:51,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2021-06-05 00:46:51,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1707. [2021-06-05 00:46:51,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 2.392731535756155) internal successors, (4082), 1706 states have internal predecessors, (4082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:51,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 4082 transitions. [2021-06-05 00:46:51,315 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 4082 transitions. Word has length 119 [2021-06-05 00:46:51,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:51,315 INFO L482 AbstractCegarLoop]: Abstraction has 1707 states and 4082 transitions. [2021-06-05 00:46:51,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:51,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 4082 transitions. [2021-06-05 00:46:51,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:51,316 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:51,316 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:51,316 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-06-05 00:46:51,316 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 00:46:51,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:51,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1353455165, now seen corresponding path program 206 times [2021-06-05 00:46:51,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:51,317 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997947957] [2021-06-05 00:46:51,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:51,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:51,923 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:51,923 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997947957] [2021-06-05 00:46:51,923 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997947957] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:51,923 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:51,923 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:51,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184990599] [2021-06-05 00:46:51,924 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:51,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:51,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:51,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:51,924 INFO L87 Difference]: Start difference. First operand 1707 states and 4082 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:54,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:54,261 INFO L93 Difference]: Finished difference Result 1910 states and 4491 transitions. [2021-06-05 00:46:54,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-05 00:46:54,262 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:54,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:54,263 INFO L225 Difference]: With dead ends: 1910 [2021-06-05 00:46:54,263 INFO L226 Difference]: Without dead ends: 1775 [2021-06-05 00:46:54,263 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 2095.5ms TimeCoverageRelationStatistics Valid=468, Invalid=2394, Unknown=0, NotChecked=0, Total=2862 [2021-06-05 00:46:54,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2021-06-05 00:46:54,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1713. [2021-06-05 00:46:54,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1712 states have (on average 2.3896028037383177) internal successors, (4091), 1712 states have internal predecessors, (4091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:54,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 4091 transitions. [2021-06-05 00:46:54,277 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 4091 transitions. Word has length 119 [2021-06-05 00:46:54,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:54,278 INFO L482 AbstractCegarLoop]: Abstraction has 1713 states and 4091 transitions. [2021-06-05 00:46:54,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:54,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 4091 transitions. [2021-06-05 00:46:54,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:54,279 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:54,279 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:54,279 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-06-05 00:46:54,279 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 00:46:54,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:54,279 INFO L82 PathProgramCache]: Analyzing trace with hash 652802029, now seen corresponding path program 207 times [2021-06-05 00:46:54,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:54,280 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838663491] [2021-06-05 00:46:54,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:54,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:54,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:54,864 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838663491] [2021-06-05 00:46:54,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838663491] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:54,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:54,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:54,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058178665] [2021-06-05 00:46:54,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:54,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:54,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:54,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:54,865 INFO L87 Difference]: Start difference. First operand 1713 states and 4091 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:57,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:57,070 INFO L93 Difference]: Finished difference Result 1870 states and 4393 transitions. [2021-06-05 00:46:57,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 00:46:57,070 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:57,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:57,072 INFO L225 Difference]: With dead ends: 1870 [2021-06-05 00:46:57,072 INFO L226 Difference]: Without dead ends: 1765 [2021-06-05 00:46:57,072 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 1951.7ms TimeCoverageRelationStatistics Valid=458, Invalid=2298, Unknown=0, NotChecked=0, Total=2756 [2021-06-05 00:46:57,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2021-06-05 00:46:57,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1715. [2021-06-05 00:46:57,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1714 states have (on average 2.3885647607934657) internal successors, (4094), 1714 states have internal predecessors, (4094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:57,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 4094 transitions. [2021-06-05 00:46:57,087 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 4094 transitions. Word has length 119 [2021-06-05 00:46:57,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:57,087 INFO L482 AbstractCegarLoop]: Abstraction has 1715 states and 4094 transitions. [2021-06-05 00:46:57,087 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:57,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 4094 transitions. [2021-06-05 00:46:57,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:57,088 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:57,088 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:57,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-06-05 00:46:57,088 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 00:46:57,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:57,089 INFO L82 PathProgramCache]: Analyzing trace with hash 239033633, now seen corresponding path program 208 times [2021-06-05 00:46:57,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:57,089 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428363374] [2021-06-05 00:46:57,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:46:57,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:46:57,694 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:46:57,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428363374] [2021-06-05 00:46:57,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428363374] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:46:57,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:46:57,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:46:57,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898269659] [2021-06-05 00:46:57,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:46:57,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:46:57,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:46:57,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:46:57,695 INFO L87 Difference]: Start difference. First operand 1715 states and 4094 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:59,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:46:59,806 INFO L93 Difference]: Finished difference Result 1826 states and 4297 transitions. [2021-06-05 00:46:59,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-05 00:46:59,806 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:46:59,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:46:59,808 INFO L225 Difference]: With dead ends: 1826 [2021-06-05 00:46:59,808 INFO L226 Difference]: Without dead ends: 1703 [2021-06-05 00:46:59,808 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1897.9ms TimeCoverageRelationStatistics Valid=453, Invalid=2199, Unknown=0, NotChecked=0, Total=2652 [2021-06-05 00:46:59,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2021-06-05 00:46:59,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1689. [2021-06-05 00:46:59,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1688 states have (on average 2.3862559241706163) internal successors, (4028), 1688 states have internal predecessors, (4028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:59,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 4028 transitions. [2021-06-05 00:46:59,823 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 4028 transitions. Word has length 119 [2021-06-05 00:46:59,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:46:59,823 INFO L482 AbstractCegarLoop]: Abstraction has 1689 states and 4028 transitions. [2021-06-05 00:46:59,823 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:46:59,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 4028 transitions. [2021-06-05 00:46:59,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:46:59,824 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:46:59,824 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:46:59,824 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-06-05 00:46:59,824 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 00:46:59,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:46:59,825 INFO L82 PathProgramCache]: Analyzing trace with hash 852774503, now seen corresponding path program 209 times [2021-06-05 00:46:59,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:46:59,825 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97554667] [2021-06-05 00:46:59,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:46:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:47:00,405 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 00:47:00,405 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:47:00,406 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97554667] [2021-06-05 00:47:00,406 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97554667] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:47:00,406 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:47:00,406 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:47:00,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385722963] [2021-06-05 00:47:00,406 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:47:00,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:47:00,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:47:00,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:47:00,406 INFO L87 Difference]: Start difference. First operand 1689 states and 4028 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:02,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:47:02,951 INFO L93 Difference]: Finished difference Result 2098 states and 5002 transitions. [2021-06-05 00:47:02,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:47:02,951 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:47:02,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:47:02,953 INFO L225 Difference]: With dead ends: 2098 [2021-06-05 00:47:02,953 INFO L226 Difference]: Without dead ends: 2003 [2021-06-05 00:47:02,953 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2207.3ms TimeCoverageRelationStatistics Valid=484, Invalid=2486, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:47:02,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2021-06-05 00:47:02,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 1917. [2021-06-05 00:47:02,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1916 states have (on average 2.4081419624217117) internal successors, (4614), 1916 states have internal predecessors, (4614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:02,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 4614 transitions. [2021-06-05 00:47:02,970 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 4614 transitions. Word has length 119 [2021-06-05 00:47:02,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:47:02,970 INFO L482 AbstractCegarLoop]: Abstraction has 1917 states and 4614 transitions. [2021-06-05 00:47:02,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:02,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 4614 transitions. [2021-06-05 00:47:02,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:47:02,971 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:47:02,971 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:47:02,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-06-05 00:47:02,972 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 00:47:02,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:47:02,972 INFO L82 PathProgramCache]: Analyzing trace with hash 378068201, now seen corresponding path program 210 times [2021-06-05 00:47:02,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:47:02,972 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198845527] [2021-06-05 00:47:02,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:47:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:47:03,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:47:03,555 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:47:03,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198845527] [2021-06-05 00:47:03,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198845527] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:47:03,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:47:03,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:47:03,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144583229] [2021-06-05 00:47:03,556 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:47:03,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:47:03,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:47:03,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:47:03,556 INFO L87 Difference]: Start difference. First operand 1917 states and 4614 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:05,524 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-06-05 00:47:06,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:47:06,200 INFO L93 Difference]: Finished difference Result 2321 states and 5505 transitions. [2021-06-05 00:47:06,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-05 00:47:06,200 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:47:06,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:47:06,202 INFO L225 Difference]: With dead ends: 2321 [2021-06-05 00:47:06,202 INFO L226 Difference]: Without dead ends: 1826 [2021-06-05 00:47:06,202 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 2369.5ms TimeCoverageRelationStatistics Valid=528, Invalid=2778, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 00:47:06,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2021-06-05 00:47:06,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1749. [2021-06-05 00:47:06,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1748 states have (on average 2.3661327231121283) internal successors, (4136), 1748 states have internal predecessors, (4136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:06,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 4136 transitions. [2021-06-05 00:47:06,219 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 4136 transitions. Word has length 119 [2021-06-05 00:47:06,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:47:06,219 INFO L482 AbstractCegarLoop]: Abstraction has 1749 states and 4136 transitions. [2021-06-05 00:47:06,219 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:06,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 4136 transitions. [2021-06-05 00:47:06,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:47:06,221 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:47:06,221 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:47:06,221 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-06-05 00:47:06,221 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 00:47:06,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:47:06,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1613045767, now seen corresponding path program 211 times [2021-06-05 00:47:06,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:47:06,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652413587] [2021-06-05 00:47:06,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:47:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:47:06,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:47:06,832 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:47:06,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652413587] [2021-06-05 00:47:06,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652413587] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:47:06,832 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:47:06,832 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:47:06,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806489999] [2021-06-05 00:47:06,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:47:06,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:47:06,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:47:06,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:47:06,832 INFO L87 Difference]: Start difference. First operand 1749 states and 4136 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:09,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:47:09,420 INFO L93 Difference]: Finished difference Result 1898 states and 4424 transitions. [2021-06-05 00:47:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:47:09,420 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:47:09,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:47:09,421 INFO L225 Difference]: With dead ends: 1898 [2021-06-05 00:47:09,421 INFO L226 Difference]: Without dead ends: 1733 [2021-06-05 00:47:09,422 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 2288.4ms TimeCoverageRelationStatistics Valid=484, Invalid=2486, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:47:09,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2021-06-05 00:47:09,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1689. [2021-06-05 00:47:09,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1688 states have (on average 2.3507109004739335) internal successors, (3968), 1688 states have internal predecessors, (3968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:09,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 3968 transitions. [2021-06-05 00:47:09,435 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 3968 transitions. Word has length 119 [2021-06-05 00:47:09,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:47:09,436 INFO L482 AbstractCegarLoop]: Abstraction has 1689 states and 3968 transitions. [2021-06-05 00:47:09,436 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:09,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 3968 transitions. [2021-06-05 00:47:09,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:47:09,437 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:47:09,437 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:47:09,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-06-05 00:47:09,437 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 00:47:09,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:47:09,437 INFO L82 PathProgramCache]: Analyzing trace with hash -363529467, now seen corresponding path program 212 times [2021-06-05 00:47:09,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:47:09,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560655360] [2021-06-05 00:47:09,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:47:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:47:10,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:47:10,030 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:47:10,030 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560655360] [2021-06-05 00:47:10,030 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560655360] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:47:10,030 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:47:10,030 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:47:10,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531960838] [2021-06-05 00:47:10,031 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:47:10,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:47:10,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:47:10,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:47:10,031 INFO L87 Difference]: Start difference. First operand 1689 states and 3968 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:11,672 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2021-06-05 00:47:11,984 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-06-05 00:47:12,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:47:12,530 INFO L93 Difference]: Finished difference Result 1868 states and 4325 transitions. [2021-06-05 00:47:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-05 00:47:12,530 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:47:12,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:47:12,531 INFO L225 Difference]: With dead ends: 1868 [2021-06-05 00:47:12,531 INFO L226 Difference]: Without dead ends: 1553 [2021-06-05 00:47:12,532 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 2259.3ms TimeCoverageRelationStatistics Valid=484, Invalid=2486, Unknown=0, NotChecked=0, Total=2970 [2021-06-05 00:47:12,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2021-06-05 00:47:12,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1509. [2021-06-05 00:47:12,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 2.312997347480106) internal successors, (3488), 1508 states have internal predecessors, (3488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:12,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 3488 transitions. [2021-06-05 00:47:12,544 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 3488 transitions. Word has length 119 [2021-06-05 00:47:12,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:47:12,544 INFO L482 AbstractCegarLoop]: Abstraction has 1509 states and 3488 transitions. [2021-06-05 00:47:12,544 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:12,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 3488 transitions. [2021-06-05 00:47:12,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:47:12,545 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:47:12,545 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:47:12,545 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-06-05 00:47:12,545 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 00:47:12,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:47:12,546 INFO L82 PathProgramCache]: Analyzing trace with hash 425622033, now seen corresponding path program 213 times [2021-06-05 00:47:12,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:47:12,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637948692] [2021-06-05 00:47:12,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:47:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:47:13,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:47:13,103 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:47:13,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637948692] [2021-06-05 00:47:13,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637948692] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:47:13,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:47:13,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:47:13,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117642697] [2021-06-05 00:47:13,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:47:13,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:47:13,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:47:13,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:47:13,104 INFO L87 Difference]: Start difference. First operand 1509 states and 3488 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:15,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:47:15,555 INFO L93 Difference]: Finished difference Result 1900 states and 4381 transitions. [2021-06-05 00:47:15,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:47:15,555 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:47:15,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:47:15,557 INFO L225 Difference]: With dead ends: 1900 [2021-06-05 00:47:15,557 INFO L226 Difference]: Without dead ends: 1805 [2021-06-05 00:47:15,557 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 2143.4ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:47:15,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2021-06-05 00:47:15,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1677. [2021-06-05 00:47:15,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1677 states, 1676 states have (on average 2.3305489260143197) internal successors, (3906), 1676 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:15,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1677 states to 1677 states and 3906 transitions. [2021-06-05 00:47:15,572 INFO L78 Accepts]: Start accepts. Automaton has 1677 states and 3906 transitions. Word has length 119 [2021-06-05 00:47:15,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:47:15,572 INFO L482 AbstractCegarLoop]: Abstraction has 1677 states and 3906 transitions. [2021-06-05 00:47:15,573 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:15,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1677 states and 3906 transitions. [2021-06-05 00:47:15,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:47:15,574 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:47:15,574 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:47:15,574 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-06-05 00:47:15,574 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 00:47:15,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:47:15,574 INFO L82 PathProgramCache]: Analyzing trace with hash -49084269, now seen corresponding path program 214 times [2021-06-05 00:47:15,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:47:15,575 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703882549] [2021-06-05 00:47:15,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:47:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:47:16,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:47:16,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:47:16,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703882549] [2021-06-05 00:47:16,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703882549] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:47:16,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:47:16,190 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:47:16,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800389809] [2021-06-05 00:47:16,190 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:47:16,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:47:16,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:47:16,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:47:16,191 INFO L87 Difference]: Start difference. First operand 1677 states and 3906 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:18,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:47:18,798 INFO L93 Difference]: Finished difference Result 2123 states and 4884 transitions. [2021-06-05 00:47:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 00:47:18,800 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:47:18,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:47:18,801 INFO L225 Difference]: With dead ends: 2123 [2021-06-05 00:47:18,801 INFO L226 Difference]: Without dead ends: 1628 [2021-06-05 00:47:18,802 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 2372.4ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-06-05 00:47:18,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2021-06-05 00:47:18,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1509. [2021-06-05 00:47:18,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 2.273209549071618) internal successors, (3428), 1508 states have internal predecessors, (3428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:18,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 3428 transitions. [2021-06-05 00:47:18,815 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 3428 transitions. Word has length 119 [2021-06-05 00:47:18,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:47:18,815 INFO L482 AbstractCegarLoop]: Abstraction has 1509 states and 3428 transitions. [2021-06-05 00:47:18,815 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:18,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 3428 transitions. [2021-06-05 00:47:18,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:47:18,817 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:47:18,817 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:47:18,817 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-06-05 00:47:18,817 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 00:47:18,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:47:18,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1185893297, now seen corresponding path program 215 times [2021-06-05 00:47:18,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:47:18,817 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058970774] [2021-06-05 00:47:18,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:47:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:47:19,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:47:19,415 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:47:19,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058970774] [2021-06-05 00:47:19,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058970774] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:47:19,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:47:19,416 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:47:19,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671482323] [2021-06-05 00:47:19,416 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:47:19,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:47:19,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:47:19,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:47:19,416 INFO L87 Difference]: Start difference. First operand 1509 states and 3428 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:21,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:47:21,875 INFO L93 Difference]: Finished difference Result 1700 states and 3803 transitions. [2021-06-05 00:47:21,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 00:47:21,875 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-06-05 00:47:21,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:47:21,876 INFO L225 Difference]: With dead ends: 1700 [2021-06-05 00:47:21,876 INFO L226 Difference]: Without dead ends: 1535 [2021-06-05 00:47:21,877 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 2253.1ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-06-05 00:47:21,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2021-06-05 00:47:21,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1449. [2021-06-05 00:47:21,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1448 states have (on average 2.2845303867403315) internal successors, (3308), 1448 states have internal predecessors, (3308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:21,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 3308 transitions. [2021-06-05 00:47:21,889 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 3308 transitions. Word has length 119 [2021-06-05 00:47:21,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:47:21,889 INFO L482 AbstractCegarLoop]: Abstraction has 1449 states and 3308 transitions. [2021-06-05 00:47:21,889 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:47:21,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 3308 transitions. [2021-06-05 00:47:21,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-06-05 00:47:21,890 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:47:21,890 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:47:21,890 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-06-05 00:47:21,890 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 00:47:21,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:47:21,891 INFO L82 PathProgramCache]: Analyzing trace with hash -2068815291, now seen corresponding path program 216 times [2021-06-05 00:47:21,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:47:21,891 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664594536] [2021-06-05 00:47:21,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:47:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:47:22,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:47:22,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:47:22,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664594536] [2021-06-05 00:47:22,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664594536] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:47:22,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:47:22,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 00:47:22,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316629956] [2021-06-05 00:47:22,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 00:47:22,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:47:22,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 00:47:22,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-06-05 00:47:22,496 INFO L87 Difference]: Start difference. First operand 1449 states and 3308 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-06-05 00:47:22,972 WARN L222 SmtUtils]: Removed 18 from assertion stack [2021-06-05 00:47:22,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:47:22,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-06-05 00:47:22,972 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 00:47:22,973 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 00:47:22,975 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 00:47:22,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:47:22 BasicIcfg [2021-06-05 00:47:22,975 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 00:47:22,975 INFO L168 Benchmark]: Toolchain (without parser) took 742991.56 ms. Allocated memory was 343.9 MB in the beginning and 1.8 GB in the end (delta: 1.4 GB). Free memory was 303.9 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 173.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:47:22,975 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 343.9 MB. Free memory was 324.0 MB in the beginning and 323.9 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:47:22,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.24 ms. Allocated memory is still 343.9 MB. Free memory was 303.7 MB in the beginning and 281.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 79.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:47:22,976 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.60 ms. Allocated memory is still 343.9 MB. Free memory was 281.9 MB in the beginning and 278.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:47:22,976 INFO L168 Benchmark]: Boogie Preprocessor took 38.13 ms. Allocated memory is still 343.9 MB. Free memory was 278.7 MB in the beginning and 275.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:47:22,976 INFO L168 Benchmark]: RCFGBuilder took 562.67 ms. Allocated memory is still 343.9 MB. Free memory was 275.6 MB in the beginning and 226.3 MB in the end (delta: 49.3 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:47:22,976 INFO L168 Benchmark]: TraceAbstraction took 741473.13 ms. Allocated memory was 343.9 MB in the beginning and 1.8 GB in the end (delta: 1.4 GB). Free memory was 226.3 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 92.9 MB. Max. memory is 16.0 GB. [2021-06-05 00:47:22,976 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 343.9 MB. Free memory was 324.0 MB in the beginning and 323.9 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 842.24 ms. Allocated memory is still 343.9 MB. Free memory was 303.7 MB in the beginning and 281.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 79.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 67.60 ms. Allocated memory is still 343.9 MB. Free memory was 281.9 MB in the beginning and 278.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 38.13 ms. Allocated memory is still 343.9 MB. Free memory was 278.7 MB in the beginning and 275.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 562.67 ms. Allocated memory is still 343.9 MB. Free memory was 275.6 MB in the beginning and 226.3 MB in the end (delta: 49.3 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 741473.13 ms. Allocated memory was 343.9 MB in the beginning and 1.8 GB in the end (delta: 1.4 GB). Free memory was 226.3 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 92.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (1449states) and FLOYD_HOARE automaton (currently 10 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 65 for 35ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (1449states) and FLOYD_HOARE automaton (currently 10 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 65 for 35ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (1449states) and FLOYD_HOARE automaton (currently 10 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 65 for 35ms.. - TimeoutResultAtElement [Line: 1726]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (1449states) and FLOYD_HOARE automaton (currently 10 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 65 for 35ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (1449states) and FLOYD_HOARE automaton (currently 10 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 65 for 35ms.. - TimeoutResultAtElement [Line: 1727]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (1449states) and FLOYD_HOARE automaton (currently 10 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 65 for 35ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (1449states) and FLOYD_HOARE automaton (currently 10 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 65 for 35ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (1449states) and FLOYD_HOARE automaton (currently 10 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 65 for 35ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 176 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 741331.6ms, OverallIterations: 258, TraceHistogramMax: 1, EmptinessCheckTime: 829.6ms, AutomataDifference: 585524.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 247.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 49751 SDtfs, 232633 SDslu, 579834 SDs, 0 SdLazy, 338706 SolverSat, 23665 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 147268.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13967 GetRequests, 802 SyntacticMatches, 523 SemanticMatches, 12641 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115692 ImplicationChecksByTransitivity, 503809.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8253occurred in iteration=4, InterpolantAutomatonStates: 7862, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 12168.5ms AutomataMinimizationTime, 257 MinimizatonAttempts, 209303 StatesRemovedByMinimization, 251 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 399.1ms SsaConstructionTime, 3403.3ms SatisfiabilityAnalysisTime, 136891.5ms InterpolantComputationTime, 30193 NumberOfCodeBlocks, 30193 NumberOfCodeBlocksAsserted, 258 NumberOfCheckSat, 29935 ConstructedInterpolants, 0 QuantifiedInterpolants, 629828 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 258 InterpolantComputations, 258 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