/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 17:25:32,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 17:25:32,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 17:25:32,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-12 17:25:32,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 17:25:32,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 17:25:32,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 17:25:32,316 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 [2021-06-12 17:25:32,331 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 17:25:32,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 17:25:32,331 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 17:25:32,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 17:25:32,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 17:25:32,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 17:25:32,333 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 17:25:32,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 17:25:32,333 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 17:25:32,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 17:25:32,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 17:25:32,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 17:25:32,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 17:25:32,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 17:25:32,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 17:25:32,334 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 17:25:32,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 17:25:32,334 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 17:25:32,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 17:25:32,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 17:25:32,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 17:25:32,335 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 17:25:32,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 17:25:32,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 17:25:32,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 17:25:32,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 17:25:32,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 17:25:32,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 17:25:32,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 17:25:32,336 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 17:25:32,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 17:25:32,336 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 17:25:32,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 17:25:32,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 17:25:32,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 17:25:32,540 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 17:25:32,540 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 17:25:32,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-06-12 17:25:32,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5a81ff8/baa7de5cb8094ab29993d3cc659d3080/FLAG71f504f8e [2021-06-12 17:25:32,988 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 17:25:32,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-06-12 17:25:33,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5a81ff8/baa7de5cb8094ab29993d3cc659d3080/FLAG71f504f8e [2021-06-12 17:25:33,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5a81ff8/baa7de5cb8094ab29993d3cc659d3080 [2021-06-12 17:25:33,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 17:25:33,323 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 17:25:33,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 17:25:33,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 17:25:33,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 17:25:33,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:25:33" (1/1) ... [2021-06-12 17:25:33,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3427789f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:33, skipping insertion in model container [2021-06-12 17:25:33,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:25:33" (1/1) ... [2021-06-12 17:25:33,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 17:25:33,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 17:25:33,770 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2021-06-12 17:25:33,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:25:33,834 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 17:25:33,858 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2021-06-12 17:25:33,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:25:34,035 INFO L208 MainTranslator]: Completed translation [2021-06-12 17:25:34,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:34 WrapperNode [2021-06-12 17:25:34,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 17:25:34,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 17:25:34,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 17:25:34,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 17:25:34,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:34" (1/1) ... [2021-06-12 17:25:34,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:34" (1/1) ... [2021-06-12 17:25:34,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 17:25:34,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 17:25:34,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 17:25:34,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 17:25:34,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:34" (1/1) ... [2021-06-12 17:25:34,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:34" (1/1) ... [2021-06-12 17:25:34,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:34" (1/1) ... [2021-06-12 17:25:34,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:34" (1/1) ... [2021-06-12 17:25:34,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:34" (1/1) ... [2021-06-12 17:25:34,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:34" (1/1) ... [2021-06-12 17:25:34,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:34" (1/1) ... [2021-06-12 17:25:34,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 17:25:34,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 17:25:34,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 17:25:34,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 17:25:34,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:34" (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 [2021-06-12 17:25:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 17:25:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-12 17:25:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-12 17:25:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-12 17:25:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 17:25:34,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 17:25:34,167 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-06-12 17:25:34,167 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-06-12 17:25:34,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 17:25:34,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 17:25:34,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 17:25:34,168 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 17:25:34,629 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 17:25:34,629 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-06-12 17:25:34,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:25:34 BoogieIcfgContainer [2021-06-12 17:25:34,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 17:25:34,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 17:25:34,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 17:25:34,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 17:25:34,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 05:25:33" (1/3) ... [2021-06-12 17:25:34,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f52fcb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:25:34, skipping insertion in model container [2021-06-12 17:25:34,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:25:34" (2/3) ... [2021-06-12 17:25:34,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f52fcb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:25:34, skipping insertion in model container [2021-06-12 17:25:34,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:25:34" (3/3) ... [2021-06-12 17:25:34,638 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2021-06-12 17:25:34,642 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 17:25:34,642 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 17:25:34,643 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-06-12 17:25:34,643 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 17:25:34,676 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,676 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,676 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,676 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,677 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,677 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,678 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,678 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,678 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,678 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,678 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,678 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,679 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,679 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,679 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,679 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,679 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,679 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,679 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,679 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,679 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,680 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,680 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,680 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,680 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,680 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,680 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,680 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,680 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,680 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,681 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,681 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,681 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,681 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,681 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,682 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,682 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,682 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,682 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,682 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,682 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,682 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,682 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,683 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,683 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,683 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,683 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,683 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,683 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,683 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,683 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,683 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,683 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,683 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,684 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,684 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,684 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,684 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,684 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,684 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,684 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,684 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,684 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,685 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,685 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,685 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,685 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,685 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,685 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,685 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,685 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,685 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,685 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,685 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,685 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,686 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,686 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,686 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,686 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,686 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,686 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,686 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,686 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,686 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,686 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,687 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,687 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,687 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,687 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,687 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,687 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,687 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,687 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,688 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,688 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,689 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,690 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,691 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,691 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,691 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,694 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,694 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,695 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,695 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,695 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,695 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,695 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,696 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,696 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,696 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,696 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,696 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,696 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,696 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,696 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,696 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,696 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,697 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,697 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,697 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,697 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,697 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,697 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,697 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,697 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,697 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,697 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,697 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,697 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,698 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,698 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,698 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,698 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,698 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,698 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,698 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,700 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,700 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,700 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,700 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,700 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,700 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,700 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,700 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,700 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,700 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,701 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,701 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,704 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,704 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,704 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,704 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,704 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,704 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,705 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,705 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,705 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,705 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,705 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,705 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:25:34,712 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-12 17:25:34,724 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-06-12 17:25:34,746 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 17:25:34,746 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 17:25:34,747 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 17:25:34,747 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 17:25:34,747 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 17:25:34,747 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 17:25:34,747 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 17:25:34,747 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 17:25:34,760 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 167 places, 171 transitions, 364 flow [2021-06-12 17:25:34,986 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9357 states, 9346 states have (on average 2.8477423496683074) internal successors, (26615), 9356 states have internal predecessors, (26615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:35,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 9357 states, 9346 states have (on average 2.8477423496683074) internal successors, (26615), 9356 states have internal predecessors, (26615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:35,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-12 17:25:35,023 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:35,024 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:35,024 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]=== [2021-06-12 17:25:35,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:35,028 INFO L82 PathProgramCache]: Analyzing trace with hash 4312800, now seen corresponding path program 1 times [2021-06-12 17:25:35,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:35,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477797612] [2021-06-12 17:25:35,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:35,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:35,278 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:35,278 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477797612] [2021-06-12 17:25:35,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477797612] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:35,279 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:35,279 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:25:35,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027274062] [2021-06-12 17:25:35,281 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:25:35,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:35,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:25:35,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:25:35,306 INFO L87 Difference]: Start difference. First operand has 9357 states, 9346 states have (on average 2.8477423496683074) internal successors, (26615), 9356 states have internal predecessors, (26615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:35,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:35,510 INFO L93 Difference]: Finished difference Result 8904 states and 24865 transitions. [2021-06-12 17:25:35,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:25:35,511 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 [2021-06-12 17:25:35,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:35,551 INFO L225 Difference]: With dead ends: 8904 [2021-06-12 17:25:35,551 INFO L226 Difference]: Without dead ends: 7312 [2021-06-12 17:25:35,552 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 51.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:25:35,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7312 states. [2021-06-12 17:25:35,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7312 to 7311. [2021-06-12 17:25:35,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7311 states, 7304 states have (on average 2.7836801752464404) internal successors, (20332), 7310 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:35,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7311 states to 7311 states and 20332 transitions. [2021-06-12 17:25:35,851 INFO L78 Accepts]: Start accepts. Automaton has 7311 states and 20332 transitions. Word has length 36 [2021-06-12 17:25:35,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:35,851 INFO L482 AbstractCegarLoop]: Abstraction has 7311 states and 20332 transitions. [2021-06-12 17:25:35,851 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) [2021-06-12 17:25:35,851 INFO L276 IsEmpty]: Start isEmpty. Operand 7311 states and 20332 transitions. [2021-06-12 17:25:35,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-06-12 17:25:35,852 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:35,852 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:35,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 17:25:35,852 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]=== [2021-06-12 17:25:35,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:35,853 INFO L82 PathProgramCache]: Analyzing trace with hash -334882016, now seen corresponding path program 1 times [2021-06-12 17:25:35,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:35,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935402849] [2021-06-12 17:25:35,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:35,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:35,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:35,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935402849] [2021-06-12 17:25:35,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935402849] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:35,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:35,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:25:35,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567227865] [2021-06-12 17:25:35,918 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:25:35,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:35,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:25:35,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:25:35,919 INFO L87 Difference]: Start difference. First operand 7311 states and 20332 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:36,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:36,099 INFO L93 Difference]: Finished difference Result 7313 states and 20334 transitions. [2021-06-12 17:25:36,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:25:36,099 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 [2021-06-12 17:25:36,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:36,122 INFO L225 Difference]: With dead ends: 7313 [2021-06-12 17:25:36,122 INFO L226 Difference]: Without dead ends: 7313 [2021-06-12 17:25:36,122 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 102.0ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-12 17:25:36,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7313 states. [2021-06-12 17:25:36,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7313 to 7309. [2021-06-12 17:25:36,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7303 states have (on average 2.7837874845953716) internal successors, (20330), 7308 states have internal predecessors, (20330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:36,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 20330 transitions. [2021-06-12 17:25:36,262 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 20330 transitions. Word has length 42 [2021-06-12 17:25:36,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:36,262 INFO L482 AbstractCegarLoop]: Abstraction has 7309 states and 20330 transitions. [2021-06-12 17:25:36,263 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) [2021-06-12 17:25:36,263 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 20330 transitions. [2021-06-12 17:25:36,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-12 17:25:36,264 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:36,264 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:36,264 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 17:25:36,264 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]=== [2021-06-12 17:25:36,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:36,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1888111070, now seen corresponding path program 1 times [2021-06-12 17:25:36,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:36,265 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430853130] [2021-06-12 17:25:36,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:36,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:36,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:36,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430853130] [2021-06-12 17:25:36,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430853130] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:36,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:36,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:25:36,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787782866] [2021-06-12 17:25:36,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:25:36,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:36,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:25:36,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:25:36,331 INFO L87 Difference]: Start difference. First operand 7309 states and 20330 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:36,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:36,601 INFO L93 Difference]: Finished difference Result 10560 states and 29296 transitions. [2021-06-12 17:25:36,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-12 17:25:36,601 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 [2021-06-12 17:25:36,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:36,637 INFO L225 Difference]: With dead ends: 10560 [2021-06-12 17:25:36,638 INFO L226 Difference]: Without dead ends: 10560 [2021-06-12 17:25:36,638 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 77.9ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:25:36,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10560 states. [2021-06-12 17:25:36,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10560 to 8145. [2021-06-12 17:25:36,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8145 states, 8140 states have (on average 2.784029484029484) internal successors, (22662), 8144 states have internal predecessors, (22662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:36,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8145 states to 8145 states and 22662 transitions. [2021-06-12 17:25:36,858 INFO L78 Accepts]: Start accepts. Automaton has 8145 states and 22662 transitions. Word has length 60 [2021-06-12 17:25:36,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:36,858 INFO L482 AbstractCegarLoop]: Abstraction has 8145 states and 22662 transitions. [2021-06-12 17:25:36,858 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) [2021-06-12 17:25:36,858 INFO L276 IsEmpty]: Start isEmpty. Operand 8145 states and 22662 transitions. [2021-06-12 17:25:36,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-12 17:25:36,864 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:36,864 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:36,865 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 17:25:36,865 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]=== [2021-06-12 17:25:36,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:36,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1332255701, now seen corresponding path program 1 times [2021-06-12 17:25:36,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:36,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298219538] [2021-06-12 17:25:36,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:36,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:36,948 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:36,948 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298219538] [2021-06-12 17:25:36,948 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298219538] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:36,948 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:36,948 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:25:36,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020070051] [2021-06-12 17:25:36,949 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:25:36,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:36,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:25:36,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:25:36,952 INFO L87 Difference]: Start difference. First operand 8145 states and 22662 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:37,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:37,190 INFO L93 Difference]: Finished difference Result 11396 states and 31467 transitions. [2021-06-12 17:25:37,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-12 17:25:37,190 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 [2021-06-12 17:25:37,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:37,205 INFO L225 Difference]: With dead ends: 11396 [2021-06-12 17:25:37,205 INFO L226 Difference]: Without dead ends: 9607 [2021-06-12 17:25:37,205 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 88.4ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-06-12 17:25:37,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9607 states. [2021-06-12 17:25:37,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9607 to 9285. [2021-06-12 17:25:37,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9285 states, 9281 states have (on average 2.7852602090291994) internal successors, (25850), 9284 states have internal predecessors, (25850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:37,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9285 states to 9285 states and 25850 transitions. [2021-06-12 17:25:37,368 INFO L78 Accepts]: Start accepts. Automaton has 9285 states and 25850 transitions. Word has length 66 [2021-06-12 17:25:37,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:37,368 INFO L482 AbstractCegarLoop]: Abstraction has 9285 states and 25850 transitions. [2021-06-12 17:25:37,368 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) [2021-06-12 17:25:37,369 INFO L276 IsEmpty]: Start isEmpty. Operand 9285 states and 25850 transitions. [2021-06-12 17:25:37,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-12 17:25:37,375 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:37,375 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:37,375 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 17:25:37,376 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]=== [2021-06-12 17:25:37,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:37,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1121796277, now seen corresponding path program 1 times [2021-06-12 17:25:37,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:37,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893259289] [2021-06-12 17:25:37,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:37,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:37,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:37,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893259289] [2021-06-12 17:25:37,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893259289] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:37,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:37,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-12 17:25:37,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965499048] [2021-06-12 17:25:37,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-12 17:25:37,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:37,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-12 17:25:37,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-12 17:25:37,465 INFO L87 Difference]: Start difference. First operand 9285 states and 25850 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:37,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:37,493 INFO L93 Difference]: Finished difference Result 3460 states and 9340 transitions. [2021-06-12 17:25:37,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-12 17:25:37,494 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 [2021-06-12 17:25:37,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:37,498 INFO L225 Difference]: With dead ends: 3460 [2021-06-12 17:25:37,498 INFO L226 Difference]: Without dead ends: 3460 [2021-06-12 17:25:37,498 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 17.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:25:37,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2021-06-12 17:25:37,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 3460. [2021-06-12 17:25:37,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3460 states, 3458 states have (on average 2.700983227299017) internal successors, (9340), 3459 states have internal predecessors, (9340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:37,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 9340 transitions. [2021-06-12 17:25:37,545 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 9340 transitions. Word has length 80 [2021-06-12 17:25:37,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:37,545 INFO L482 AbstractCegarLoop]: Abstraction has 3460 states and 9340 transitions. [2021-06-12 17:25:37,545 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) [2021-06-12 17:25:37,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 9340 transitions. [2021-06-12 17:25:37,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:25:37,550 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:37,550 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:37,550 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 17:25:37,551 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]=== [2021-06-12 17:25:37,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:37,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1306089738, now seen corresponding path program 1 times [2021-06-12 17:25:37,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:37,551 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254477627] [2021-06-12 17:25:37,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:38,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:38,115 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:38,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254477627] [2021-06-12 17:25:38,116 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254477627] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:38,116 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:38,116 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:25:38,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19408537] [2021-06-12 17:25:38,116 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:25:38,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:38,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:25:38,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:25:38,117 INFO L87 Difference]: Start difference. First operand 3460 states and 9340 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:38,976 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-12 17:25:39,157 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:25:39,338 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:25:39,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:39,480 INFO L93 Difference]: Finished difference Result 4246 states and 11446 transitions. [2021-06-12 17:25:39,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:25:39,480 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:25:39,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:39,487 INFO L225 Difference]: With dead ends: 4246 [2021-06-12 17:25:39,487 INFO L226 Difference]: Without dead ends: 4246 [2021-06-12 17:25:39,488 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1260.5ms TimeCoverageRelationStatistics Valid=292, Invalid=700, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:25:39,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2021-06-12 17:25:39,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 3964. [2021-06-12 17:25:39,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3964 states, 3962 states have (on average 2.708732963149924) internal successors, (10732), 3963 states have internal predecessors, (10732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:39,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 10732 transitions. [2021-06-12 17:25:39,561 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 10732 transitions. Word has length 114 [2021-06-12 17:25:39,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:39,562 INFO L482 AbstractCegarLoop]: Abstraction has 3964 states and 10732 transitions. [2021-06-12 17:25:39,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:39,562 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 10732 transitions. [2021-06-12 17:25:39,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:25:39,573 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:39,573 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:39,573 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 17:25:39,573 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]=== [2021-06-12 17:25:39,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:39,573 INFO L82 PathProgramCache]: Analyzing trace with hash -433846006, now seen corresponding path program 2 times [2021-06-12 17:25:39,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:39,574 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822932190] [2021-06-12 17:25:39,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:40,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:40,007 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:40,007 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822932190] [2021-06-12 17:25:40,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822932190] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:40,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:40,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 17:25:40,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129161491] [2021-06-12 17:25:40,008 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 17:25:40,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:40,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 17:25:40,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:25:40,008 INFO L87 Difference]: Start difference. First operand 3964 states and 10732 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:41,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:41,074 INFO L93 Difference]: Finished difference Result 4833 states and 12790 transitions. [2021-06-12 17:25:41,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-12 17:25:41,074 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:25:41,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:41,080 INFO L225 Difference]: With dead ends: 4833 [2021-06-12 17:25:41,081 INFO L226 Difference]: Without dead ends: 4833 [2021-06-12 17:25:41,081 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 884.7ms TimeCoverageRelationStatistics Valid=329, Invalid=793, Unknown=0, NotChecked=0, Total=1122 [2021-06-12 17:25:41,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4833 states. [2021-06-12 17:25:41,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4833 to 4524. [2021-06-12 17:25:41,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4522 states have (on average 2.680451127819549) internal successors, (12121), 4523 states have internal predecessors, (12121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:41,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 12121 transitions. [2021-06-12 17:25:41,148 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 12121 transitions. Word has length 114 [2021-06-12 17:25:41,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:41,149 INFO L482 AbstractCegarLoop]: Abstraction has 4524 states and 12121 transitions. [2021-06-12 17:25:41,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:41,149 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 12121 transitions. [2021-06-12 17:25:41,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:25:41,155 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:41,156 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:41,156 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-12 17:25:41,156 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]=== [2021-06-12 17:25:41,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:41,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1490642374, now seen corresponding path program 3 times [2021-06-12 17:25:41,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:41,156 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035547518] [2021-06-12 17:25:41,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:41,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:41,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035547518] [2021-06-12 17:25:41,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035547518] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:41,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:41,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 17:25:41,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264680536] [2021-06-12 17:25:41,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 17:25:41,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:41,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 17:25:41,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:25:41,604 INFO L87 Difference]: Start difference. First operand 4524 states and 12121 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:42,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:42,653 INFO L93 Difference]: Finished difference Result 5240 states and 13612 transitions. [2021-06-12 17:25:42,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-12 17:25:42,653 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:25:42,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:42,660 INFO L225 Difference]: With dead ends: 5240 [2021-06-12 17:25:42,660 INFO L226 Difference]: Without dead ends: 5240 [2021-06-12 17:25:42,661 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 907.7ms TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2021-06-12 17:25:42,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5240 states. [2021-06-12 17:25:42,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5240 to 4641. [2021-06-12 17:25:42,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4641 states, 4639 states have (on average 2.6704031041172667) internal successors, (12388), 4640 states have internal predecessors, (12388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:42,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4641 states to 4641 states and 12388 transitions. [2021-06-12 17:25:42,722 INFO L78 Accepts]: Start accepts. Automaton has 4641 states and 12388 transitions. Word has length 114 [2021-06-12 17:25:42,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:42,722 INFO L482 AbstractCegarLoop]: Abstraction has 4641 states and 12388 transitions. [2021-06-12 17:25:42,722 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:42,722 INFO L276 IsEmpty]: Start isEmpty. Operand 4641 states and 12388 transitions. [2021-06-12 17:25:42,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:25:42,728 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:42,728 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:42,728 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-12 17:25:42,729 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]=== [2021-06-12 17:25:42,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:42,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1794343348, now seen corresponding path program 4 times [2021-06-12 17:25:42,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:42,729 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501092167] [2021-06-12 17:25:42,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:43,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:43,076 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:43,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501092167] [2021-06-12 17:25:43,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501092167] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:43,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:43,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 17:25:43,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926725741] [2021-06-12 17:25:43,076 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 17:25:43,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:43,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 17:25:43,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:25:43,077 INFO L87 Difference]: Start difference. First operand 4641 states and 12388 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:44,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:44,139 INFO L93 Difference]: Finished difference Result 5618 states and 14458 transitions. [2021-06-12 17:25:44,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-12 17:25:44,140 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:25:44,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:44,145 INFO L225 Difference]: With dead ends: 5618 [2021-06-12 17:25:44,146 INFO L226 Difference]: Without dead ends: 5618 [2021-06-12 17:25:44,146 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 914.9ms TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2021-06-12 17:25:44,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2021-06-12 17:25:44,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 4688. [2021-06-12 17:25:44,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4688 states, 4686 states have (on average 2.667733674775928) internal successors, (12501), 4687 states have internal predecessors, (12501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:44,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4688 states to 4688 states and 12501 transitions. [2021-06-12 17:25:44,204 INFO L78 Accepts]: Start accepts. Automaton has 4688 states and 12501 transitions. Word has length 114 [2021-06-12 17:25:44,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:44,204 INFO L482 AbstractCegarLoop]: Abstraction has 4688 states and 12501 transitions. [2021-06-12 17:25:44,204 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:44,204 INFO L276 IsEmpty]: Start isEmpty. Operand 4688 states and 12501 transitions. [2021-06-12 17:25:44,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:25:44,213 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:44,213 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:44,213 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-12 17:25:44,213 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]=== [2021-06-12 17:25:44,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:44,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1346419364, now seen corresponding path program 5 times [2021-06-12 17:25:44,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:44,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634572964] [2021-06-12 17:25:44,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:44,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:44,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:44,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634572964] [2021-06-12 17:25:44,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634572964] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:44,533 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:44,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 17:25:44,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097524541] [2021-06-12 17:25:44,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 17:25:44,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:44,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 17:25:44,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:25:44,534 INFO L87 Difference]: Start difference. First operand 4688 states and 12501 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:45,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:45,553 INFO L93 Difference]: Finished difference Result 5759 states and 14797 transitions. [2021-06-12 17:25:45,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-12 17:25:45,553 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:25:45,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:45,558 INFO L225 Difference]: With dead ends: 5759 [2021-06-12 17:25:45,558 INFO L226 Difference]: Without dead ends: 5759 [2021-06-12 17:25:45,559 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 831.9ms TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2021-06-12 17:25:45,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2021-06-12 17:25:45,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 4782. [2021-06-12 17:25:45,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 4780 states have (on average 2.6625523012552303) internal successors, (12727), 4781 states have internal predecessors, (12727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:45,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 12727 transitions. [2021-06-12 17:25:45,629 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 12727 transitions. Word has length 114 [2021-06-12 17:25:45,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:45,629 INFO L482 AbstractCegarLoop]: Abstraction has 4782 states and 12727 transitions. [2021-06-12 17:25:45,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:45,629 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 12727 transitions. [2021-06-12 17:25:45,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:25:45,634 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:45,634 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:45,635 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-12 17:25:45,635 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]=== [2021-06-12 17:25:45,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:45,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1912760540, now seen corresponding path program 6 times [2021-06-12 17:25:45,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:45,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955229271] [2021-06-12 17:25:45,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:45,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:45,971 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:45,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955229271] [2021-06-12 17:25:45,972 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955229271] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:45,972 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:45,972 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 17:25:45,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215356499] [2021-06-12 17:25:45,972 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 17:25:45,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:45,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 17:25:45,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:25:45,973 INFO L87 Difference]: Start difference. First operand 4782 states and 12727 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:46,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:46,928 INFO L93 Difference]: Finished difference Result 5900 states and 15136 transitions. [2021-06-12 17:25:46,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-12 17:25:46,929 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:25:46,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:46,932 INFO L225 Difference]: With dead ends: 5900 [2021-06-12 17:25:46,932 INFO L226 Difference]: Without dead ends: 5900 [2021-06-12 17:25:46,933 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 831.7ms TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2021-06-12 17:25:46,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5900 states. [2021-06-12 17:25:46,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5900 to 4829. [2021-06-12 17:25:46,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4829 states, 4827 states have (on average 2.6600372902423866) internal successors, (12840), 4828 states have internal predecessors, (12840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:46,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4829 states to 4829 states and 12840 transitions. [2021-06-12 17:25:46,994 INFO L78 Accepts]: Start accepts. Automaton has 4829 states and 12840 transitions. Word has length 114 [2021-06-12 17:25:46,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:46,994 INFO L482 AbstractCegarLoop]: Abstraction has 4829 states and 12840 transitions. [2021-06-12 17:25:46,994 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:46,995 INFO L276 IsEmpty]: Start isEmpty. Operand 4829 states and 12840 transitions. [2021-06-12 17:25:47,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:25:47,000 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:47,000 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:47,000 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-12 17:25:47,000 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]=== [2021-06-12 17:25:47,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:47,000 INFO L82 PathProgramCache]: Analyzing trace with hash 650659916, now seen corresponding path program 7 times [2021-06-12 17:25:47,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:47,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376381716] [2021-06-12 17:25:47,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:47,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:47,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:47,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376381716] [2021-06-12 17:25:47,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376381716] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:47,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:47,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 17:25:47,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769937378] [2021-06-12 17:25:47,334 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 17:25:47,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:47,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 17:25:47,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:25:47,334 INFO L87 Difference]: Start difference. First operand 4829 states and 12840 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:48,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:48,197 INFO L93 Difference]: Finished difference Result 5302 states and 13818 transitions. [2021-06-12 17:25:48,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-12 17:25:48,198 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:25:48,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:48,203 INFO L225 Difference]: With dead ends: 5302 [2021-06-12 17:25:48,203 INFO L226 Difference]: Without dead ends: 5302 [2021-06-12 17:25:48,203 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 791.9ms TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2021-06-12 17:25:48,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2021-06-12 17:25:48,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 4524. [2021-06-12 17:25:48,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4522 states have (on average 2.680451127819549) internal successors, (12121), 4523 states have internal predecessors, (12121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:48,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 12121 transitions. [2021-06-12 17:25:48,288 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 12121 transitions. Word has length 114 [2021-06-12 17:25:48,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:48,288 INFO L482 AbstractCegarLoop]: Abstraction has 4524 states and 12121 transitions. [2021-06-12 17:25:48,288 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:48,288 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 12121 transitions. [2021-06-12 17:25:48,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:25:48,293 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:48,293 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:48,293 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-12 17:25:48,293 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]=== [2021-06-12 17:25:48,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:48,294 INFO L82 PathProgramCache]: Analyzing trace with hash 325025038, now seen corresponding path program 8 times [2021-06-12 17:25:48,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:48,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318362889] [2021-06-12 17:25:48,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:48,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:48,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:48,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318362889] [2021-06-12 17:25:48,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318362889] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:48,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:48,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:25:48,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965274599] [2021-06-12 17:25:48,666 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:25:48,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:48,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:25:48,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:25:48,666 INFO L87 Difference]: Start difference. First operand 4524 states and 12121 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:49,449 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-12 17:25:49,614 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:25:49,797 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:25:49,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:49,920 INFO L93 Difference]: Finished difference Result 8731 states and 23481 transitions. [2021-06-12 17:25:49,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:25:49,920 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:25:49,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:49,927 INFO L225 Difference]: With dead ends: 8731 [2021-06-12 17:25:49,927 INFO L226 Difference]: Without dead ends: 8731 [2021-06-12 17:25:49,928 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1167.7ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:25:49,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8731 states. [2021-06-12 17:25:50,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8731 to 4580. [2021-06-12 17:25:50,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4580 states, 4578 states have (on average 2.68348623853211) internal successors, (12285), 4579 states have internal predecessors, (12285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:50,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 12285 transitions. [2021-06-12 17:25:50,013 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 12285 transitions. Word has length 114 [2021-06-12 17:25:50,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:50,013 INFO L482 AbstractCegarLoop]: Abstraction has 4580 states and 12285 transitions. [2021-06-12 17:25:50,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:50,014 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 12285 transitions. [2021-06-12 17:25:50,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:25:50,019 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:50,019 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:50,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-12 17:25:50,019 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]=== [2021-06-12 17:25:50,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:50,019 INFO L82 PathProgramCache]: Analyzing trace with hash -2056705522, now seen corresponding path program 9 times [2021-06-12 17:25:50,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:50,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425233664] [2021-06-12 17:25:50,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:50,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:50,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:50,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425233664] [2021-06-12 17:25:50,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425233664] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:50,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:50,397 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:25:50,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795582612] [2021-06-12 17:25:50,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:25:50,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:50,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:25:50,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:25:50,398 INFO L87 Difference]: Start difference. First operand 4580 states and 12285 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:51,172 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:25:51,315 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:25:51,487 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:25:51,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:51,588 INFO L93 Difference]: Finished difference Result 8479 states and 22743 transitions. [2021-06-12 17:25:51,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:25:51,588 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:25:51,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:51,595 INFO L225 Difference]: With dead ends: 8479 [2021-06-12 17:25:51,595 INFO L226 Difference]: Without dead ends: 8479 [2021-06-12 17:25:51,595 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1134.0ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:25:51,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8479 states. [2021-06-12 17:25:51,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8479 to 4594. [2021-06-12 17:25:51,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4594 states, 4592 states have (on average 2.684233449477352) internal successors, (12326), 4593 states have internal predecessors, (12326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:51,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4594 states to 4594 states and 12326 transitions. [2021-06-12 17:25:51,670 INFO L78 Accepts]: Start accepts. Automaton has 4594 states and 12326 transitions. Word has length 114 [2021-06-12 17:25:51,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:51,670 INFO L482 AbstractCegarLoop]: Abstraction has 4594 states and 12326 transitions. [2021-06-12 17:25:51,670 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:51,670 INFO L276 IsEmpty]: Start isEmpty. Operand 4594 states and 12326 transitions. [2021-06-12 17:25:51,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:25:51,675 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:51,675 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:51,675 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-12 17:25:51,675 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]=== [2021-06-12 17:25:51,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:51,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1149788588, now seen corresponding path program 10 times [2021-06-12 17:25:51,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:51,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341762407] [2021-06-12 17:25:51,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:52,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:52,034 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:52,034 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341762407] [2021-06-12 17:25:52,034 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341762407] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:52,034 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:52,034 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:25:52,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014358579] [2021-06-12 17:25:52,034 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:25:52,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:52,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:25:52,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:25:52,035 INFO L87 Difference]: Start difference. First operand 4594 states and 12326 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:52,800 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:25:52,961 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:25:53,119 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:25:53,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:53,232 INFO L93 Difference]: Finished difference Result 7977 states and 21077 transitions. [2021-06-12 17:25:53,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:25:53,232 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:25:53,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:53,237 INFO L225 Difference]: With dead ends: 7977 [2021-06-12 17:25:53,237 INFO L226 Difference]: Without dead ends: 7977 [2021-06-12 17:25:53,238 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1159.1ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:25:53,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7977 states. [2021-06-12 17:25:53,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7977 to 4692. [2021-06-12 17:25:53,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4692 states, 4690 states have (on average 2.6714285714285713) internal successors, (12529), 4691 states have internal predecessors, (12529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:53,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4692 states to 4692 states and 12529 transitions. [2021-06-12 17:25:53,307 INFO L78 Accepts]: Start accepts. Automaton has 4692 states and 12529 transitions. Word has length 114 [2021-06-12 17:25:53,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:53,307 INFO L482 AbstractCegarLoop]: Abstraction has 4692 states and 12529 transitions. [2021-06-12 17:25:53,307 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:53,307 INFO L276 IsEmpty]: Start isEmpty. Operand 4692 states and 12529 transitions. [2021-06-12 17:25:53,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:25:53,312 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:53,312 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:53,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-12 17:25:53,312 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]=== [2021-06-12 17:25:53,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:53,313 INFO L82 PathProgramCache]: Analyzing trace with hash -9117170, now seen corresponding path program 11 times [2021-06-12 17:25:53,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:53,313 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269465231] [2021-06-12 17:25:53,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:53,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:53,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:53,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269465231] [2021-06-12 17:25:53,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269465231] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:53,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:53,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 17:25:53,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796147464] [2021-06-12 17:25:53,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 17:25:53,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:53,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 17:25:53,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:25:53,634 INFO L87 Difference]: Start difference. First operand 4692 states and 12529 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:54,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:54,627 INFO L93 Difference]: Finished difference Result 6412 states and 16826 transitions. [2021-06-12 17:25:54,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-12 17:25:54,627 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:25:54,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:54,633 INFO L225 Difference]: With dead ends: 6412 [2021-06-12 17:25:54,633 INFO L226 Difference]: Without dead ends: 6412 [2021-06-12 17:25:54,633 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 793.4ms TimeCoverageRelationStatistics Valid=329, Invalid=793, Unknown=0, NotChecked=0, Total=1122 [2021-06-12 17:25:54,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2021-06-12 17:25:54,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 4842. [2021-06-12 17:25:54,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4842 states, 4840 states have (on average 2.671694214876033) internal successors, (12931), 4841 states have internal predecessors, (12931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:54,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4842 states to 4842 states and 12931 transitions. [2021-06-12 17:25:54,691 INFO L78 Accepts]: Start accepts. Automaton has 4842 states and 12931 transitions. Word has length 114 [2021-06-12 17:25:54,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:54,691 INFO L482 AbstractCegarLoop]: Abstraction has 4842 states and 12931 transitions. [2021-06-12 17:25:54,691 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:54,691 INFO L276 IsEmpty]: Start isEmpty. Operand 4842 states and 12931 transitions. [2021-06-12 17:25:54,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:25:54,696 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:54,697 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:54,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-12 17:25:54,697 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]=== [2021-06-12 17:25:54,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:54,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1506201982, now seen corresponding path program 1 times [2021-06-12 17:25:54,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:54,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650452922] [2021-06-12 17:25:54,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:55,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:55,317 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:55,317 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650452922] [2021-06-12 17:25:55,317 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650452922] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:55,317 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:55,317 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 17:25:55,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785373206] [2021-06-12 17:25:55,317 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-12 17:25:55,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:55,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-12 17:25:55,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2021-06-12 17:25:55,318 INFO L87 Difference]: Start difference. First operand 4842 states and 12931 transitions. Second operand has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:58,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:58,358 INFO L93 Difference]: Finished difference Result 11566 states and 31075 transitions. [2021-06-12 17:25:58,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-12 17:25:58,358 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:25:58,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:58,368 INFO L225 Difference]: With dead ends: 11566 [2021-06-12 17:25:58,368 INFO L226 Difference]: Without dead ends: 11481 [2021-06-12 17:25:58,369 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 929 ImplicationChecksByTransitivity, 2135.5ms TimeCoverageRelationStatistics Valid=960, Invalid=3732, Unknown=0, NotChecked=0, Total=4692 [2021-06-12 17:25:58,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11481 states. [2021-06-12 17:25:58,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11481 to 8109. [2021-06-12 17:25:58,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8109 states, 8107 states have (on average 2.685703712840755) internal successors, (21773), 8108 states have internal predecessors, (21773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:58,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8109 states to 8109 states and 21773 transitions. [2021-06-12 17:25:58,474 INFO L78 Accepts]: Start accepts. Automaton has 8109 states and 21773 transitions. Word has length 114 [2021-06-12 17:25:58,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:25:58,475 INFO L482 AbstractCegarLoop]: Abstraction has 8109 states and 21773 transitions. [2021-06-12 17:25:58,475 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:58,475 INFO L276 IsEmpty]: Start isEmpty. Operand 8109 states and 21773 transitions. [2021-06-12 17:25:58,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:25:58,484 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:25:58,484 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:25:58,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-12 17:25:58,484 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:25:58,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:25:58,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1116270854, now seen corresponding path program 12 times [2021-06-12 17:25:58,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:25:58,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076081065] [2021-06-12 17:25:58,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:25:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:25:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:25:58,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:25:58,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076081065] [2021-06-12 17:25:58,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076081065] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:25:58,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:25:58,858 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 17:25:58,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950617675] [2021-06-12 17:25:58,859 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 17:25:58,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:25:58,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 17:25:58,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:25:58,860 INFO L87 Difference]: Start difference. First operand 8109 states and 21773 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:25:59,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:25:59,938 INFO L93 Difference]: Finished difference Result 11359 states and 29724 transitions. [2021-06-12 17:25:59,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-12 17:25:59,938 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:25:59,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:25:59,948 INFO L225 Difference]: With dead ends: 11359 [2021-06-12 17:25:59,948 INFO L226 Difference]: Without dead ends: 11359 [2021-06-12 17:25:59,948 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 911.7ms TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2021-06-12 17:25:59,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11359 states. [2021-06-12 17:26:00,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11359 to 8214. [2021-06-12 17:26:00,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8214 states, 8212 states have (on average 2.681685338528982) internal successors, (22022), 8213 states have internal predecessors, (22022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:00,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8214 states to 8214 states and 22022 transitions. [2021-06-12 17:26:00,058 INFO L78 Accepts]: Start accepts. Automaton has 8214 states and 22022 transitions. Word has length 114 [2021-06-12 17:26:00,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:00,058 INFO L482 AbstractCegarLoop]: Abstraction has 8214 states and 22022 transitions. [2021-06-12 17:26:00,058 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:00,058 INFO L276 IsEmpty]: Start isEmpty. Operand 8214 states and 22022 transitions. [2021-06-12 17:26:00,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:00,066 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:00,066 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:00,066 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-12 17:26:00,066 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]=== [2021-06-12 17:26:00,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:00,066 INFO L82 PathProgramCache]: Analyzing trace with hash -53792276, now seen corresponding path program 13 times [2021-06-12 17:26:00,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:00,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816052575] [2021-06-12 17:26:00,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:00,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:00,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:00,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816052575] [2021-06-12 17:26:00,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816052575] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:00,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:00,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:00,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210442001] [2021-06-12 17:26:00,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:00,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:00,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:00,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:00,433 INFO L87 Difference]: Start difference. First operand 8214 states and 22022 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:01,239 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-12 17:26:01,414 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:01,585 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:01,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:01,693 INFO L93 Difference]: Finished difference Result 13047 states and 34842 transitions. [2021-06-12 17:26:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:01,693 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:01,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:01,704 INFO L225 Difference]: With dead ends: 13047 [2021-06-12 17:26:01,704 INFO L226 Difference]: Without dead ends: 13047 [2021-06-12 17:26:01,704 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1175.2ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:01,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13047 states. [2021-06-12 17:26:01,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13047 to 8214. [2021-06-12 17:26:01,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8214 states, 8212 states have (on average 2.681685338528982) internal successors, (22022), 8213 states have internal predecessors, (22022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:01,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8214 states to 8214 states and 22022 transitions. [2021-06-12 17:26:01,812 INFO L78 Accepts]: Start accepts. Automaton has 8214 states and 22022 transitions. Word has length 114 [2021-06-12 17:26:01,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:01,812 INFO L482 AbstractCegarLoop]: Abstraction has 8214 states and 22022 transitions. [2021-06-12 17:26:01,813 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:01,813 INFO L276 IsEmpty]: Start isEmpty. Operand 8214 states and 22022 transitions. [2021-06-12 17:26:01,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:01,820 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:01,820 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:01,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-12 17:26:01,820 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]=== [2021-06-12 17:26:01,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:01,820 INFO L82 PathProgramCache]: Analyzing trace with hash 286452082, now seen corresponding path program 14 times [2021-06-12 17:26:01,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:01,820 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988127244] [2021-06-12 17:26:01,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:02,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:02,232 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:02,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988127244] [2021-06-12 17:26:02,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988127244] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:02,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:02,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:02,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077466292] [2021-06-12 17:26:02,232 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:02,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:02,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:02,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:02,233 INFO L87 Difference]: Start difference. First operand 8214 states and 22022 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:03,157 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:03,325 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:03,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:03,433 INFO L93 Difference]: Finished difference Result 9491 states and 25105 transitions. [2021-06-12 17:26:03,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:03,434 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:03,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:03,442 INFO L225 Difference]: With dead ends: 9491 [2021-06-12 17:26:03,442 INFO L226 Difference]: Without dead ends: 9491 [2021-06-12 17:26:03,442 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1136.0ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:03,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9491 states. [2021-06-12 17:26:03,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9491 to 6576. [2021-06-12 17:26:03,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6576 states, 6574 states have (on average 2.648919987830849) internal successors, (17414), 6575 states have internal predecessors, (17414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:03,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6576 states to 6576 states and 17414 transitions. [2021-06-12 17:26:03,527 INFO L78 Accepts]: Start accepts. Automaton has 6576 states and 17414 transitions. Word has length 114 [2021-06-12 17:26:03,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:03,527 INFO L482 AbstractCegarLoop]: Abstraction has 6576 states and 17414 transitions. [2021-06-12 17:26:03,527 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:03,527 INFO L276 IsEmpty]: Start isEmpty. Operand 6576 states and 17414 transitions. [2021-06-12 17:26:03,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:03,532 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:03,533 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:03,533 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-12 17:26:03,533 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]=== [2021-06-12 17:26:03,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:03,533 INFO L82 PathProgramCache]: Analyzing trace with hash 533718860, now seen corresponding path program 15 times [2021-06-12 17:26:03,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:03,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984594877] [2021-06-12 17:26:03,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:03,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:03,892 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:03,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984594877] [2021-06-12 17:26:03,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984594877] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:03,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:03,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:03,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232100570] [2021-06-12 17:26:03,893 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:03,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:03,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:03,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:03,893 INFO L87 Difference]: Start difference. First operand 6576 states and 17414 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:04,824 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:04,986 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:05,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:05,128 INFO L93 Difference]: Finished difference Result 13133 states and 34661 transitions. [2021-06-12 17:26:05,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:05,128 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:05,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:05,139 INFO L225 Difference]: With dead ends: 13133 [2021-06-12 17:26:05,139 INFO L226 Difference]: Without dead ends: 13133 [2021-06-12 17:26:05,140 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1143.6ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:05,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13133 states. [2021-06-12 17:26:05,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13133 to 6664. [2021-06-12 17:26:05,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6664 states, 6662 states have (on average 2.652356649654758) internal successors, (17670), 6663 states have internal predecessors, (17670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:05,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6664 states to 6664 states and 17670 transitions. [2021-06-12 17:26:05,235 INFO L78 Accepts]: Start accepts. Automaton has 6664 states and 17670 transitions. Word has length 114 [2021-06-12 17:26:05,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:05,236 INFO L482 AbstractCegarLoop]: Abstraction has 6664 states and 17670 transitions. [2021-06-12 17:26:05,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:05,236 INFO L276 IsEmpty]: Start isEmpty. Operand 6664 states and 17670 transitions. [2021-06-12 17:26:05,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:05,241 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:05,241 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:05,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-12 17:26:05,241 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]=== [2021-06-12 17:26:05,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:05,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1848011700, now seen corresponding path program 16 times [2021-06-12 17:26:05,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:05,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20447462] [2021-06-12 17:26:05,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:05,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:05,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:05,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20447462] [2021-06-12 17:26:05,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20447462] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:05,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:05,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:05,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631859687] [2021-06-12 17:26:05,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:05,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:05,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:05,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:05,580 INFO L87 Difference]: Start difference. First operand 6664 states and 17670 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:06,387 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:06,531 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:06,699 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:06,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:06,830 INFO L93 Difference]: Finished difference Result 15661 states and 41210 transitions. [2021-06-12 17:26:06,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:06,830 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:06,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:06,843 INFO L225 Difference]: With dead ends: 15661 [2021-06-12 17:26:06,844 INFO L226 Difference]: Without dead ends: 15661 [2021-06-12 17:26:06,844 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1158.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:06,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15661 states. [2021-06-12 17:26:06,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15661 to 6680. [2021-06-12 17:26:06,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6680 states, 6678 states have (on average 2.652890086852351) internal successors, (17716), 6679 states have internal predecessors, (17716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:06,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6680 states to 6680 states and 17716 transitions. [2021-06-12 17:26:06,953 INFO L78 Accepts]: Start accepts. Automaton has 6680 states and 17716 transitions. Word has length 114 [2021-06-12 17:26:06,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:06,953 INFO L482 AbstractCegarLoop]: Abstraction has 6680 states and 17716 transitions. [2021-06-12 17:26:06,953 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:06,953 INFO L276 IsEmpty]: Start isEmpty. Operand 6680 states and 17716 transitions. [2021-06-12 17:26:06,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:06,959 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:06,959 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:06,959 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-12 17:26:06,959 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]=== [2021-06-12 17:26:06,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:06,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1358482410, now seen corresponding path program 17 times [2021-06-12 17:26:06,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:06,960 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487285628] [2021-06-12 17:26:06,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:07,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:07,290 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:07,290 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487285628] [2021-06-12 17:26:07,290 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487285628] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:07,290 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:07,290 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:07,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604033734] [2021-06-12 17:26:07,290 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:07,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:07,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:07,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:07,291 INFO L87 Difference]: Start difference. First operand 6680 states and 17716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:08,068 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:08,223 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:26:08,385 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:26:08,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:08,513 INFO L93 Difference]: Finished difference Result 14001 states and 36610 transitions. [2021-06-12 17:26:08,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:08,513 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:08,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:08,525 INFO L225 Difference]: With dead ends: 14001 [2021-06-12 17:26:08,525 INFO L226 Difference]: Without dead ends: 14001 [2021-06-12 17:26:08,525 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1108.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:08,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14001 states. [2021-06-12 17:26:08,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14001 to 6652. [2021-06-12 17:26:08,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6652 states, 6650 states have (on average 2.6490225563909773) internal successors, (17616), 6651 states have internal predecessors, (17616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:08,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6652 states to 6652 states and 17616 transitions. [2021-06-12 17:26:08,656 INFO L78 Accepts]: Start accepts. Automaton has 6652 states and 17616 transitions. Word has length 114 [2021-06-12 17:26:08,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:08,656 INFO L482 AbstractCegarLoop]: Abstraction has 6652 states and 17616 transitions. [2021-06-12 17:26:08,657 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:08,657 INFO L276 IsEmpty]: Start isEmpty. Operand 6652 states and 17616 transitions. [2021-06-12 17:26:08,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:08,662 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:08,662 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:08,662 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-12 17:26:08,662 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]=== [2021-06-12 17:26:08,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:08,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1526265076, now seen corresponding path program 18 times [2021-06-12 17:26:08,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:08,663 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817981963] [2021-06-12 17:26:08,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:08,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:08,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:08,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817981963] [2021-06-12 17:26:08,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817981963] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:08,966 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:08,966 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:08,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031747307] [2021-06-12 17:26:08,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:08,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:08,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:08,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:08,966 INFO L87 Difference]: Start difference. First operand 6652 states and 17616 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:09,736 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:09,881 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:10,042 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:10,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:10,159 INFO L93 Difference]: Finished difference Result 12763 states and 33601 transitions. [2021-06-12 17:26:10,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:10,159 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:10,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:10,171 INFO L225 Difference]: With dead ends: 12763 [2021-06-12 17:26:10,171 INFO L226 Difference]: Without dead ends: 12763 [2021-06-12 17:26:10,171 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1123.4ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:10,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12763 states. [2021-06-12 17:26:10,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12763 to 6682. [2021-06-12 17:26:10,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6682 states, 6680 states have (on average 2.6501497005988024) internal successors, (17703), 6681 states have internal predecessors, (17703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:10,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6682 states to 6682 states and 17703 transitions. [2021-06-12 17:26:10,288 INFO L78 Accepts]: Start accepts. Automaton has 6682 states and 17703 transitions. Word has length 114 [2021-06-12 17:26:10,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:10,288 INFO L482 AbstractCegarLoop]: Abstraction has 6682 states and 17703 transitions. [2021-06-12 17:26:10,288 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:10,289 INFO L276 IsEmpty]: Start isEmpty. Operand 6682 states and 17703 transitions. [2021-06-12 17:26:10,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:10,294 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:10,294 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:10,294 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-12 17:26:10,295 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]=== [2021-06-12 17:26:10,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:10,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1680229034, now seen corresponding path program 19 times [2021-06-12 17:26:10,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:10,295 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424556337] [2021-06-12 17:26:10,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:10,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:10,591 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:10,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424556337] [2021-06-12 17:26:10,591 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424556337] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:10,591 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:10,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:10,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117104166] [2021-06-12 17:26:10,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:10,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:10,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:10,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:10,592 INFO L87 Difference]: Start difference. First operand 6682 states and 17703 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:11,373 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:11,549 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:26:11,705 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:26:11,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:11,831 INFO L93 Difference]: Finished difference Result 13576 states and 35405 transitions. [2021-06-12 17:26:11,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:11,831 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:11,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:11,842 INFO L225 Difference]: With dead ends: 13576 [2021-06-12 17:26:11,842 INFO L226 Difference]: Without dead ends: 13576 [2021-06-12 17:26:11,843 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1122.1ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:11,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13576 states. [2021-06-12 17:26:11,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13576 to 6666. [2021-06-12 17:26:11,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6666 states, 6664 states have (on average 2.649609843937575) internal successors, (17657), 6665 states have internal predecessors, (17657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:11,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6666 states to 6666 states and 17657 transitions. [2021-06-12 17:26:11,960 INFO L78 Accepts]: Start accepts. Automaton has 6666 states and 17657 transitions. Word has length 114 [2021-06-12 17:26:11,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:11,961 INFO L482 AbstractCegarLoop]: Abstraction has 6666 states and 17657 transitions. [2021-06-12 17:26:11,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:11,961 INFO L276 IsEmpty]: Start isEmpty. Operand 6666 states and 17657 transitions. [2021-06-12 17:26:11,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:11,966 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:11,966 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:11,966 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-12 17:26:11,966 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]=== [2021-06-12 17:26:11,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:11,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1816874802, now seen corresponding path program 20 times [2021-06-12 17:26:11,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:11,966 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121378546] [2021-06-12 17:26:11,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:12,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:12,262 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:12,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121378546] [2021-06-12 17:26:12,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121378546] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:12,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:12,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:12,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282052605] [2021-06-12 17:26:12,262 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:12,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:12,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:12,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:12,263 INFO L87 Difference]: Start difference. First operand 6666 states and 17657 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:13,017 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:13,167 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:26:13,326 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:26:13,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:13,453 INFO L93 Difference]: Finished difference Result 12902 states and 33818 transitions. [2021-06-12 17:26:13,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:13,453 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:13,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:13,464 INFO L225 Difference]: With dead ends: 12902 [2021-06-12 17:26:13,465 INFO L226 Difference]: Without dead ends: 12902 [2021-06-12 17:26:13,465 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1076.4ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:13,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12902 states. [2021-06-12 17:26:13,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12902 to 6680. [2021-06-12 17:26:13,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6680 states, 6678 states have (on average 2.6501946690625937) internal successors, (17698), 6679 states have internal predecessors, (17698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:13,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6680 states to 6680 states and 17698 transitions. [2021-06-12 17:26:13,577 INFO L78 Accepts]: Start accepts. Automaton has 6680 states and 17698 transitions. Word has length 114 [2021-06-12 17:26:13,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:13,577 INFO L482 AbstractCegarLoop]: Abstraction has 6680 states and 17698 transitions. [2021-06-12 17:26:13,577 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:13,577 INFO L276 IsEmpty]: Start isEmpty. Operand 6680 states and 17698 transitions. [2021-06-12 17:26:13,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:13,582 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:13,582 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:13,582 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-12 17:26:13,582 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]=== [2021-06-12 17:26:13,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:13,583 INFO L82 PathProgramCache]: Analyzing trace with hash -2065421782, now seen corresponding path program 21 times [2021-06-12 17:26:13,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:13,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289384685] [2021-06-12 17:26:13,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:13,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:13,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:13,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289384685] [2021-06-12 17:26:13,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289384685] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:13,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:13,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:13,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919205080] [2021-06-12 17:26:13,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:13,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:13,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:13,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:13,860 INFO L87 Difference]: Start difference. First operand 6680 states and 17698 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:14,609 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:14,764 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:14,923 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:15,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:15,028 INFO L93 Difference]: Finished difference Result 10249 states and 27058 transitions. [2021-06-12 17:26:15,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:15,028 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:15,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:15,037 INFO L225 Difference]: With dead ends: 10249 [2021-06-12 17:26:15,037 INFO L226 Difference]: Without dead ends: 10249 [2021-06-12 17:26:15,037 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1087.6ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:15,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10249 states. [2021-06-12 17:26:15,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10249 to 6764. [2021-06-12 17:26:15,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6764 states, 6762 states have (on average 2.653652765454008) internal successors, (17944), 6763 states have internal predecessors, (17944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:15,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6764 states to 6764 states and 17944 transitions. [2021-06-12 17:26:15,135 INFO L78 Accepts]: Start accepts. Automaton has 6764 states and 17944 transitions. Word has length 114 [2021-06-12 17:26:15,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:15,135 INFO L482 AbstractCegarLoop]: Abstraction has 6764 states and 17944 transitions. [2021-06-12 17:26:15,135 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:15,135 INFO L276 IsEmpty]: Start isEmpty. Operand 6764 states and 17944 transitions. [2021-06-12 17:26:15,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:15,140 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:15,140 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:15,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-12 17:26:15,140 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]=== [2021-06-12 17:26:15,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:15,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1068406510, now seen corresponding path program 2 times [2021-06-12 17:26:15,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:15,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255035107] [2021-06-12 17:26:15,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:15,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:15,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:15,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255035107] [2021-06-12 17:26:15,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255035107] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:15,696 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:15,696 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 17:26:15,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079346583] [2021-06-12 17:26:15,696 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-12 17:26:15,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:15,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-12 17:26:15,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2021-06-12 17:26:15,697 INFO L87 Difference]: Start difference. First operand 6764 states and 17944 transitions. Second operand has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:19,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:19,359 INFO L93 Difference]: Finished difference Result 11039 states and 28924 transitions. [2021-06-12 17:26:19,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-06-12 17:26:19,359 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:19,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:19,367 INFO L225 Difference]: With dead ends: 11039 [2021-06-12 17:26:19,367 INFO L226 Difference]: Without dead ends: 10934 [2021-06-12 17:26:19,367 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 2270.3ms TimeCoverageRelationStatistics Valid=1066, Invalid=4046, Unknown=0, NotChecked=0, Total=5112 [2021-06-12 17:26:19,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2021-06-12 17:26:19,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 8083. [2021-06-12 17:26:19,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8083 states, 8081 states have (on average 2.658458111619849) internal successors, (21483), 8082 states have internal predecessors, (21483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:19,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8083 states to 8083 states and 21483 transitions. [2021-06-12 17:26:19,463 INFO L78 Accepts]: Start accepts. Automaton has 8083 states and 21483 transitions. Word has length 114 [2021-06-12 17:26:19,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:19,464 INFO L482 AbstractCegarLoop]: Abstraction has 8083 states and 21483 transitions. [2021-06-12 17:26:19,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:19,464 INFO L276 IsEmpty]: Start isEmpty. Operand 8083 states and 21483 transitions. [2021-06-12 17:26:19,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:19,469 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:19,470 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:19,470 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-12 17:26:19,470 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]=== [2021-06-12 17:26:19,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:19,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1458337638, now seen corresponding path program 22 times [2021-06-12 17:26:19,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:19,470 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499314360] [2021-06-12 17:26:19,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:19,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:19,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:19,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499314360] [2021-06-12 17:26:19,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499314360] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:19,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:19,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 17:26:19,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374262964] [2021-06-12 17:26:19,764 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 17:26:19,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:19,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 17:26:19,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:26:19,764 INFO L87 Difference]: Start difference. First operand 8083 states and 21483 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:20,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:20,772 INFO L93 Difference]: Finished difference Result 9579 states and 24648 transitions. [2021-06-12 17:26:20,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-12 17:26:20,772 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:20,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:20,781 INFO L225 Difference]: With dead ends: 9579 [2021-06-12 17:26:20,781 INFO L226 Difference]: Without dead ends: 9579 [2021-06-12 17:26:20,781 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 869.1ms TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2021-06-12 17:26:20,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9579 states. [2021-06-12 17:26:20,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9579 to 8068. [2021-06-12 17:26:20,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8068 states, 8066 states have (on average 2.6619142077857676) internal successors, (21471), 8067 states have internal predecessors, (21471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:20,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8068 states to 8068 states and 21471 transitions. [2021-06-12 17:26:20,902 INFO L78 Accepts]: Start accepts. Automaton has 8068 states and 21471 transitions. Word has length 114 [2021-06-12 17:26:20,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:20,903 INFO L482 AbstractCegarLoop]: Abstraction has 8068 states and 21471 transitions. [2021-06-12 17:26:20,903 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:20,903 INFO L276 IsEmpty]: Start isEmpty. Operand 8068 states and 21471 transitions. [2021-06-12 17:26:20,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:20,909 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:20,910 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:20,910 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-12 17:26:20,910 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]=== [2021-06-12 17:26:20,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:20,910 INFO L82 PathProgramCache]: Analyzing trace with hash 439040622, now seen corresponding path program 23 times [2021-06-12 17:26:20,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:20,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336802080] [2021-06-12 17:26:20,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:21,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:21,229 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:21,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336802080] [2021-06-12 17:26:21,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336802080] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:21,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:21,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:21,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526306467] [2021-06-12 17:26:21,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:21,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:21,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:21,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:21,230 INFO L87 Difference]: Start difference. First operand 8068 states and 21471 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:22,147 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:22,312 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:22,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:22,477 INFO L93 Difference]: Finished difference Result 18855 states and 49905 transitions. [2021-06-12 17:26:22,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:22,478 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:22,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:22,493 INFO L225 Difference]: With dead ends: 18855 [2021-06-12 17:26:22,493 INFO L226 Difference]: Without dead ends: 18855 [2021-06-12 17:26:22,493 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1127.4ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:22,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18855 states. [2021-06-12 17:26:22,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18855 to 8158. [2021-06-12 17:26:22,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8158 states, 8156 states have (on average 2.664541441883276) internal successors, (21732), 8157 states have internal predecessors, (21732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:22,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8158 states to 8158 states and 21732 transitions. [2021-06-12 17:26:22,625 INFO L78 Accepts]: Start accepts. Automaton has 8158 states and 21732 transitions. Word has length 114 [2021-06-12 17:26:22,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:22,625 INFO L482 AbstractCegarLoop]: Abstraction has 8158 states and 21732 transitions. [2021-06-12 17:26:22,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:22,625 INFO L276 IsEmpty]: Start isEmpty. Operand 8158 states and 21732 transitions. [2021-06-12 17:26:22,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:22,631 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:22,631 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:22,631 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-12 17:26:22,631 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]=== [2021-06-12 17:26:22,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:22,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1942689938, now seen corresponding path program 24 times [2021-06-12 17:26:22,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:22,632 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813954897] [2021-06-12 17:26:22,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:22,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:22,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:22,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813954897] [2021-06-12 17:26:22,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813954897] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:22,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:22,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:22,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247523092] [2021-06-12 17:26:22,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:22,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:22,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:22,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:22,935 INFO L87 Difference]: Start difference. First operand 8158 states and 21732 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:23,725 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:23,873 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:24,057 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:24,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:24,201 INFO L93 Difference]: Finished difference Result 18867 states and 49839 transitions. [2021-06-12 17:26:24,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:24,202 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:24,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:24,219 INFO L225 Difference]: With dead ends: 18867 [2021-06-12 17:26:24,219 INFO L226 Difference]: Without dead ends: 18867 [2021-06-12 17:26:24,220 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1126.6ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:24,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18867 states. [2021-06-12 17:26:24,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18867 to 8188. [2021-06-12 17:26:24,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8188 states, 8186 states have (on average 2.665404348888346) internal successors, (21819), 8187 states have internal predecessors, (21819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:24,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8188 states to 8188 states and 21819 transitions. [2021-06-12 17:26:24,357 INFO L78 Accepts]: Start accepts. Automaton has 8188 states and 21819 transitions. Word has length 114 [2021-06-12 17:26:24,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:24,358 INFO L482 AbstractCegarLoop]: Abstraction has 8188 states and 21819 transitions. [2021-06-12 17:26:24,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:24,358 INFO L276 IsEmpty]: Start isEmpty. Operand 8188 states and 21819 transitions. [2021-06-12 17:26:24,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:24,364 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:24,364 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:24,365 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-12 17:26:24,365 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]=== [2021-06-12 17:26:24,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:24,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1263804172, now seen corresponding path program 25 times [2021-06-12 17:26:24,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:24,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159691079] [2021-06-12 17:26:24,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:24,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:24,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159691079] [2021-06-12 17:26:24,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159691079] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:24,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:24,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:24,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696978636] [2021-06-12 17:26:24,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:24,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:24,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:24,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:24,693 INFO L87 Difference]: Start difference. First operand 8188 states and 21819 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:25,527 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:25,708 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:26:25,888 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:26:26,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:26,031 INFO L93 Difference]: Finished difference Result 18001 states and 47041 transitions. [2021-06-12 17:26:26,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:26,031 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:26,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:26,047 INFO L225 Difference]: With dead ends: 18001 [2021-06-12 17:26:26,047 INFO L226 Difference]: Without dead ends: 18001 [2021-06-12 17:26:26,047 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1182.4ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:26,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18001 states. [2021-06-12 17:26:26,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18001 to 8098. [2021-06-12 17:26:26,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8098 states, 8096 states have (on average 2.662796442687747) internal successors, (21558), 8097 states have internal predecessors, (21558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:26,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8098 states to 8098 states and 21558 transitions. [2021-06-12 17:26:26,183 INFO L78 Accepts]: Start accepts. Automaton has 8098 states and 21558 transitions. Word has length 114 [2021-06-12 17:26:26,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:26,183 INFO L482 AbstractCegarLoop]: Abstraction has 8098 states and 21558 transitions. [2021-06-12 17:26:26,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:26,183 INFO L276 IsEmpty]: Start isEmpty. Operand 8098 states and 21558 transitions. [2021-06-12 17:26:26,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:26,190 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:26,190 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:26,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-12 17:26:26,190 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]=== [2021-06-12 17:26:26,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:26,190 INFO L82 PathProgramCache]: Analyzing trace with hash 60223308, now seen corresponding path program 26 times [2021-06-12 17:26:26,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:26,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613289047] [2021-06-12 17:26:26,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:26,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:26,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:26,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613289047] [2021-06-12 17:26:26,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613289047] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:26,514 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:26,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:26,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37051366] [2021-06-12 17:26:26,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:26,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:26,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:26,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:26,515 INFO L87 Difference]: Start difference. First operand 8098 states and 21558 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:27,173 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-06-12 17:26:27,297 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-12 17:26:27,462 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:27,629 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:27,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:27,744 INFO L93 Difference]: Finished difference Result 13688 states and 36021 transitions. [2021-06-12 17:26:27,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:27,745 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:27,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:27,756 INFO L225 Difference]: With dead ends: 13688 [2021-06-12 17:26:27,756 INFO L226 Difference]: Without dead ends: 13688 [2021-06-12 17:26:27,757 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1142.9ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:27,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13688 states. [2021-06-12 17:26:27,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13688 to 8068. [2021-06-12 17:26:27,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8068 states, 8066 states have (on average 2.6619142077857676) internal successors, (21471), 8067 states have internal predecessors, (21471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:27,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8068 states to 8068 states and 21471 transitions. [2021-06-12 17:26:27,868 INFO L78 Accepts]: Start accepts. Automaton has 8068 states and 21471 transitions. Word has length 114 [2021-06-12 17:26:27,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:27,868 INFO L482 AbstractCegarLoop]: Abstraction has 8068 states and 21471 transitions. [2021-06-12 17:26:27,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:27,868 INFO L276 IsEmpty]: Start isEmpty. Operand 8068 states and 21471 transitions. [2021-06-12 17:26:27,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:27,874 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:27,874 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:27,874 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-12 17:26:27,874 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]=== [2021-06-12 17:26:27,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:27,875 INFO L82 PathProgramCache]: Analyzing trace with hash 33138314, now seen corresponding path program 27 times [2021-06-12 17:26:27,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:27,875 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865967610] [2021-06-12 17:26:27,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:28,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:28,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:28,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865967610] [2021-06-12 17:26:28,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865967610] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:28,202 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:28,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:28,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433691181] [2021-06-12 17:26:28,203 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:28,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:28,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:28,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:28,203 INFO L87 Difference]: Start difference. First operand 8068 states and 21471 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:29,165 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:29,333 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:29,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:29,474 INFO L93 Difference]: Finished difference Result 16591 states and 43642 transitions. [2021-06-12 17:26:29,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:29,475 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:29,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:29,490 INFO L225 Difference]: With dead ends: 16591 [2021-06-12 17:26:29,490 INFO L226 Difference]: Without dead ends: 16591 [2021-06-12 17:26:29,490 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1153.9ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:29,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16591 states. [2021-06-12 17:26:29,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16591 to 8124. [2021-06-12 17:26:29,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8124 states, 8122 states have (on average 2.663752770253632) internal successors, (21635), 8123 states have internal predecessors, (21635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:29,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8124 states to 8124 states and 21635 transitions. [2021-06-12 17:26:29,619 INFO L78 Accepts]: Start accepts. Automaton has 8124 states and 21635 transitions. Word has length 114 [2021-06-12 17:26:29,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:29,620 INFO L482 AbstractCegarLoop]: Abstraction has 8124 states and 21635 transitions. [2021-06-12 17:26:29,620 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:29,620 INFO L276 IsEmpty]: Start isEmpty. Operand 8124 states and 21635 transitions. [2021-06-12 17:26:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:29,626 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:29,626 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:29,626 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-12 17:26:29,626 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]=== [2021-06-12 17:26:29,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:29,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1946375050, now seen corresponding path program 28 times [2021-06-12 17:26:29,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:29,626 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618678598] [2021-06-12 17:26:29,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:29,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:29,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:29,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618678598] [2021-06-12 17:26:29,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618678598] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:29,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:29,956 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:29,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643787317] [2021-06-12 17:26:29,956 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:29,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:29,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:29,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:29,956 INFO L87 Difference]: Start difference. First operand 8124 states and 21635 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:30,764 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:30,912 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:31,078 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:31,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:31,215 INFO L93 Difference]: Finished difference Result 16603 states and 43576 transitions. [2021-06-12 17:26:31,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:31,216 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:31,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:31,231 INFO L225 Difference]: With dead ends: 16603 [2021-06-12 17:26:31,231 INFO L226 Difference]: Without dead ends: 16603 [2021-06-12 17:26:31,231 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1168.7ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:31,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16603 states. [2021-06-12 17:26:31,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16603 to 8138. [2021-06-12 17:26:31,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8138 states, 8136 states have (on average 2.6642084562438546) internal successors, (21676), 8137 states have internal predecessors, (21676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:31,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8138 states to 8138 states and 21676 transitions. [2021-06-12 17:26:31,361 INFO L78 Accepts]: Start accepts. Automaton has 8138 states and 21676 transitions. Word has length 114 [2021-06-12 17:26:31,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:31,361 INFO L482 AbstractCegarLoop]: Abstraction has 8138 states and 21676 transitions. [2021-06-12 17:26:31,361 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:31,362 INFO L276 IsEmpty]: Start isEmpty. Operand 8138 states and 21676 transitions. [2021-06-12 17:26:31,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:31,368 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:31,368 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:31,368 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-12 17:26:31,368 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]=== [2021-06-12 17:26:31,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:31,368 INFO L82 PathProgramCache]: Analyzing trace with hash 857901864, now seen corresponding path program 29 times [2021-06-12 17:26:31,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:31,369 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482961388] [2021-06-12 17:26:31,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:31,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:31,694 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:31,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482961388] [2021-06-12 17:26:31,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482961388] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:31,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:31,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:31,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572683189] [2021-06-12 17:26:31,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:31,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:31,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:31,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:31,695 INFO L87 Difference]: Start difference. First operand 8138 states and 21676 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:32,501 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:32,656 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:26:32,815 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:26:32,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:32,940 INFO L93 Difference]: Finished difference Result 15737 states and 40778 transitions. [2021-06-12 17:26:32,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:32,941 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:32,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:32,954 INFO L225 Difference]: With dead ends: 15737 [2021-06-12 17:26:32,954 INFO L226 Difference]: Without dead ends: 15737 [2021-06-12 17:26:32,954 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1173.8ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:32,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15737 states. [2021-06-12 17:26:33,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15737 to 7936. [2021-06-12 17:26:33,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7936 states, 7934 states have (on average 2.6585581043609783) internal successors, (21093), 7935 states have internal predecessors, (21093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:33,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7936 states to 7936 states and 21093 transitions. [2021-06-12 17:26:33,069 INFO L78 Accepts]: Start accepts. Automaton has 7936 states and 21093 transitions. Word has length 114 [2021-06-12 17:26:33,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:33,069 INFO L482 AbstractCegarLoop]: Abstraction has 7936 states and 21093 transitions. [2021-06-12 17:26:33,069 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:33,069 INFO L276 IsEmpty]: Start isEmpty. Operand 7936 states and 21093 transitions. [2021-06-12 17:26:33,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:33,075 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:33,075 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:33,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-12 17:26:33,076 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]=== [2021-06-12 17:26:33,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:33,076 INFO L82 PathProgramCache]: Analyzing trace with hash -345679000, now seen corresponding path program 30 times [2021-06-12 17:26:33,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:33,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51489214] [2021-06-12 17:26:33,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:33,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:33,403 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:33,403 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51489214] [2021-06-12 17:26:33,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51489214] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:33,404 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:33,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:33,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978659055] [2021-06-12 17:26:33,404 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:33,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:33,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:33,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:33,404 INFO L87 Difference]: Start difference. First operand 7936 states and 21093 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:34,361 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:34,530 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:34,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:34,660 INFO L93 Difference]: Finished difference Result 15915 states and 41412 transitions. [2021-06-12 17:26:34,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:34,661 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:34,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:34,674 INFO L225 Difference]: With dead ends: 15915 [2021-06-12 17:26:34,675 INFO L226 Difference]: Without dead ends: 15915 [2021-06-12 17:26:34,675 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1132.1ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:34,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15915 states. [2021-06-12 17:26:34,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15915 to 7906. [2021-06-12 17:26:34,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7906 states, 7904 states have (on average 2.6576417004048585) internal successors, (21006), 7905 states have internal predecessors, (21006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:34,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7906 states to 7906 states and 21006 transitions. [2021-06-12 17:26:34,789 INFO L78 Accepts]: Start accepts. Automaton has 7906 states and 21006 transitions. Word has length 114 [2021-06-12 17:26:34,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:34,789 INFO L482 AbstractCegarLoop]: Abstraction has 7906 states and 21006 transitions. [2021-06-12 17:26:34,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:34,789 INFO L276 IsEmpty]: Start isEmpty. Operand 7906 states and 21006 transitions. [2021-06-12 17:26:34,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:34,795 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:34,795 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:34,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-12 17:26:34,795 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]=== [2021-06-12 17:26:34,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:34,796 INFO L82 PathProgramCache]: Analyzing trace with hash -5434642, now seen corresponding path program 31 times [2021-06-12 17:26:34,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:34,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122683721] [2021-06-12 17:26:34,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:35,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:35,143 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:35,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122683721] [2021-06-12 17:26:35,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122683721] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:35,143 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:35,143 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:35,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899738198] [2021-06-12 17:26:35,143 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:35,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:35,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:35,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:35,144 INFO L87 Difference]: Start difference. First operand 7906 states and 21006 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:36,072 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:36,237 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:36,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:36,353 INFO L93 Difference]: Finished difference Result 11341 states and 29538 transitions. [2021-06-12 17:26:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:36,353 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:36,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:36,362 INFO L225 Difference]: With dead ends: 11341 [2021-06-12 17:26:36,363 INFO L226 Difference]: Without dead ends: 11341 [2021-06-12 17:26:36,363 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1146.9ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:36,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11341 states. [2021-06-12 17:26:36,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11341 to 7306. [2021-06-12 17:26:36,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7306 states, 7304 states have (on average 2.6521084337349397) internal successors, (19371), 7305 states have internal predecessors, (19371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:36,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7306 states to 7306 states and 19371 transitions. [2021-06-12 17:26:36,453 INFO L78 Accepts]: Start accepts. Automaton has 7306 states and 19371 transitions. Word has length 114 [2021-06-12 17:26:36,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:36,453 INFO L482 AbstractCegarLoop]: Abstraction has 7306 states and 19371 transitions. [2021-06-12 17:26:36,453 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:36,453 INFO L276 IsEmpty]: Start isEmpty. Operand 7306 states and 19371 transitions. [2021-06-12 17:26:36,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:36,458 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:36,459 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:36,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-12 17:26:36,459 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]=== [2021-06-12 17:26:36,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:36,459 INFO L82 PathProgramCache]: Analyzing trace with hash 79385358, now seen corresponding path program 32 times [2021-06-12 17:26:36,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:36,459 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197719359] [2021-06-12 17:26:36,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:36,791 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:36,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197719359] [2021-06-12 17:26:36,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197719359] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:36,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:36,791 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:36,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37551922] [2021-06-12 17:26:36,791 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:36,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:36,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:36,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:36,792 INFO L87 Difference]: Start difference. First operand 7306 states and 19371 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:37,590 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-12 17:26:37,748 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:37,914 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:38,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:38,060 INFO L93 Difference]: Finished difference Result 20447 states and 54112 transitions. [2021-06-12 17:26:38,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:38,061 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:38,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:38,080 INFO L225 Difference]: With dead ends: 20447 [2021-06-12 17:26:38,080 INFO L226 Difference]: Without dead ends: 20447 [2021-06-12 17:26:38,081 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1149.9ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:38,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20447 states. [2021-06-12 17:26:38,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20447 to 7442. [2021-06-12 17:26:38,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7442 states, 7440 states have (on average 2.6565860215053765) internal successors, (19765), 7441 states have internal predecessors, (19765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:38,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7442 states to 7442 states and 19765 transitions. [2021-06-12 17:26:38,253 INFO L78 Accepts]: Start accepts. Automaton has 7442 states and 19765 transitions. Word has length 114 [2021-06-12 17:26:38,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:38,254 INFO L482 AbstractCegarLoop]: Abstraction has 7442 states and 19765 transitions. [2021-06-12 17:26:38,254 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:38,254 INFO L276 IsEmpty]: Start isEmpty. Operand 7442 states and 19765 transitions. [2021-06-12 17:26:38,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:38,259 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:38,259 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:38,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-12 17:26:38,259 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]=== [2021-06-12 17:26:38,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:38,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1992622094, now seen corresponding path program 33 times [2021-06-12 17:26:38,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:38,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880889333] [2021-06-12 17:26:38,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:38,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:38,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:38,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880889333] [2021-06-12 17:26:38,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880889333] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:38,559 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:38,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:38,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247859791] [2021-06-12 17:26:38,560 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:38,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:38,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:38,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:38,560 INFO L87 Difference]: Start difference. First operand 7442 states and 19765 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:39,347 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:39,491 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:39,658 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:39,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:39,810 INFO L93 Difference]: Finished difference Result 22975 states and 60661 transitions. [2021-06-12 17:26:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:39,810 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:39,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:39,830 INFO L225 Difference]: With dead ends: 22975 [2021-06-12 17:26:39,830 INFO L226 Difference]: Without dead ends: 22975 [2021-06-12 17:26:39,830 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1104.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:39,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22975 states. [2021-06-12 17:26:39,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22975 to 7458. [2021-06-12 17:26:39,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7458 states, 7456 states have (on average 2.657054721030043) internal successors, (19811), 7457 states have internal predecessors, (19811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:39,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7458 states to 7458 states and 19811 transitions. [2021-06-12 17:26:39,996 INFO L78 Accepts]: Start accepts. Automaton has 7458 states and 19811 transitions. Word has length 114 [2021-06-12 17:26:39,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:39,997 INFO L482 AbstractCegarLoop]: Abstraction has 7458 states and 19811 transitions. [2021-06-12 17:26:39,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:39,997 INFO L276 IsEmpty]: Start isEmpty. Operand 7458 states and 19811 transitions. [2021-06-12 17:26:40,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:40,002 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:40,002 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:40,002 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-12 17:26:40,002 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]=== [2021-06-12 17:26:40,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:40,003 INFO L82 PathProgramCache]: Analyzing trace with hash 904148908, now seen corresponding path program 34 times [2021-06-12 17:26:40,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:40,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706121299] [2021-06-12 17:26:40,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:40,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:40,309 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:40,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706121299] [2021-06-12 17:26:40,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706121299] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:40,309 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:40,309 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:40,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307543387] [2021-06-12 17:26:40,309 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:40,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:40,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:40,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:40,310 INFO L87 Difference]: Start difference. First operand 7458 states and 19811 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:41,078 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:41,243 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:26:41,422 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:26:41,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:41,554 INFO L93 Difference]: Finished difference Result 21315 states and 56061 transitions. [2021-06-12 17:26:41,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:41,554 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:41,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:41,572 INFO L225 Difference]: With dead ends: 21315 [2021-06-12 17:26:41,572 INFO L226 Difference]: Without dead ends: 21315 [2021-06-12 17:26:41,572 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1152.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:41,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21315 states. [2021-06-12 17:26:41,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21315 to 7430. [2021-06-12 17:26:41,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7430 states, 7428 states have (on average 2.653607969843834) internal successors, (19711), 7429 states have internal predecessors, (19711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:41,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 19711 transitions. [2021-06-12 17:26:41,718 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 19711 transitions. Word has length 114 [2021-06-12 17:26:41,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:41,718 INFO L482 AbstractCegarLoop]: Abstraction has 7430 states and 19711 transitions. [2021-06-12 17:26:41,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:41,718 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 19711 transitions. [2021-06-12 17:26:41,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:41,724 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:41,724 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:41,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-12 17:26:41,724 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]=== [2021-06-12 17:26:41,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:41,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1980598578, now seen corresponding path program 35 times [2021-06-12 17:26:41,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:41,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945985975] [2021-06-12 17:26:41,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:42,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:42,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:42,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945985975] [2021-06-12 17:26:42,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945985975] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:42,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:42,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:42,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092958501] [2021-06-12 17:26:42,014 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:42,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:42,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:42,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:42,015 INFO L87 Difference]: Start difference. First operand 7430 states and 19711 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:42,775 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:42,935 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:43,095 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:43,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:43,227 INFO L93 Difference]: Finished difference Result 20553 states and 54278 transitions. [2021-06-12 17:26:43,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:43,227 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:43,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:43,245 INFO L225 Difference]: With dead ends: 20553 [2021-06-12 17:26:43,245 INFO L226 Difference]: Without dead ends: 20553 [2021-06-12 17:26:43,246 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1109.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:43,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20553 states. [2021-06-12 17:26:43,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20553 to 7462. [2021-06-12 17:26:43,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7462 states, 7460 states have (on average 2.6545576407506704) internal successors, (19803), 7461 states have internal predecessors, (19803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:43,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7462 states to 7462 states and 19803 transitions. [2021-06-12 17:26:43,382 INFO L78 Accepts]: Start accepts. Automaton has 7462 states and 19803 transitions. Word has length 114 [2021-06-12 17:26:43,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:43,382 INFO L482 AbstractCegarLoop]: Abstraction has 7462 states and 19803 transitions. [2021-06-12 17:26:43,382 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:43,382 INFO L276 IsEmpty]: Start isEmpty. Operand 7462 states and 19803 transitions. [2021-06-12 17:26:43,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:43,388 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:43,388 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:43,388 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-12 17:26:43,388 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]=== [2021-06-12 17:26:43,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:43,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1225895532, now seen corresponding path program 36 times [2021-06-12 17:26:43,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:43,388 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120556498] [2021-06-12 17:26:43,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:43,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:43,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:43,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120556498] [2021-06-12 17:26:43,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120556498] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:43,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:43,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:43,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917968897] [2021-06-12 17:26:43,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:43,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:43,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:43,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:43,660 INFO L87 Difference]: Start difference. First operand 7462 states and 19803 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:44,467 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:44,625 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:26:44,784 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:26:44,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:44,933 INFO L93 Difference]: Finished difference Result 21366 states and 56082 transitions. [2021-06-12 17:26:44,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:44,934 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:44,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:44,951 INFO L225 Difference]: With dead ends: 21366 [2021-06-12 17:26:44,951 INFO L226 Difference]: Without dead ends: 21366 [2021-06-12 17:26:44,952 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1122.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:44,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21366 states. [2021-06-12 17:26:45,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21366 to 7446. [2021-06-12 17:26:45,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7446 states, 7444 states have (on average 2.6540838259000537) internal successors, (19757), 7445 states have internal predecessors, (19757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:45,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7446 states to 7446 states and 19757 transitions. [2021-06-12 17:26:45,092 INFO L78 Accepts]: Start accepts. Automaton has 7446 states and 19757 transitions. Word has length 114 [2021-06-12 17:26:45,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:45,092 INFO L482 AbstractCegarLoop]: Abstraction has 7446 states and 19757 transitions. [2021-06-12 17:26:45,092 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:45,092 INFO L276 IsEmpty]: Start isEmpty. Operand 7446 states and 19757 transitions. [2021-06-12 17:26:45,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:45,098 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:45,098 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:45,098 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-12 17:26:45,098 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]=== [2021-06-12 17:26:45,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:45,098 INFO L82 PathProgramCache]: Analyzing trace with hash 2023758992, now seen corresponding path program 37 times [2021-06-12 17:26:45,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:45,098 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675877944] [2021-06-12 17:26:45,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:45,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:45,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:45,376 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675877944] [2021-06-12 17:26:45,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675877944] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:45,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:45,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:45,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762909779] [2021-06-12 17:26:45,377 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:45,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:45,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:45,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:45,377 INFO L87 Difference]: Start difference. First operand 7446 states and 19757 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:46,023 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-12 17:26:46,152 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:46,304 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:26:46,464 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:26:46,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:46,595 INFO L93 Difference]: Finished difference Result 20692 states and 54495 transitions. [2021-06-12 17:26:46,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:46,595 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:46,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:46,613 INFO L225 Difference]: With dead ends: 20692 [2021-06-12 17:26:46,613 INFO L226 Difference]: Without dead ends: 20692 [2021-06-12 17:26:46,614 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1113.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:46,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20692 states. [2021-06-12 17:26:46,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20692 to 7462. [2021-06-12 17:26:46,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7462 states, 7460 states have (on average 2.6545576407506704) internal successors, (19803), 7461 states have internal predecessors, (19803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:46,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7462 states to 7462 states and 19803 transitions. [2021-06-12 17:26:46,746 INFO L78 Accepts]: Start accepts. Automaton has 7462 states and 19803 transitions. Word has length 114 [2021-06-12 17:26:46,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:46,746 INFO L482 AbstractCegarLoop]: Abstraction has 7462 states and 19803 transitions. [2021-06-12 17:26:46,747 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:46,747 INFO L276 IsEmpty]: Start isEmpty. Operand 7462 states and 19803 transitions. [2021-06-12 17:26:46,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:46,752 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:46,752 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:46,752 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-12 17:26:46,752 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]=== [2021-06-12 17:26:46,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:46,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1775212012, now seen corresponding path program 38 times [2021-06-12 17:26:46,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:46,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293362167] [2021-06-12 17:26:46,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:47,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:47,026 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:47,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293362167] [2021-06-12 17:26:47,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293362167] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:47,027 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:47,027 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:47,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336596978] [2021-06-12 17:26:47,027 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:47,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:47,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:47,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:47,027 INFO L87 Difference]: Start difference. First operand 7462 states and 19803 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:47,567 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-12 17:26:47,828 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:47,972 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:48,135 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:48,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:48,267 INFO L93 Difference]: Finished difference Result 18039 states and 47735 transitions. [2021-06-12 17:26:48,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:48,267 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:48,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:48,283 INFO L225 Difference]: With dead ends: 18039 [2021-06-12 17:26:48,283 INFO L226 Difference]: Without dead ends: 18039 [2021-06-12 17:26:48,283 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1112.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:48,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18039 states. [2021-06-12 17:26:48,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18039 to 7418. [2021-06-12 17:26:48,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7418 states, 7416 states have (on average 2.6522384034519955) internal successors, (19669), 7417 states have internal predecessors, (19669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:48,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7418 states to 7418 states and 19669 transitions. [2021-06-12 17:26:48,420 INFO L78 Accepts]: Start accepts. Automaton has 7418 states and 19669 transitions. Word has length 114 [2021-06-12 17:26:48,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:48,420 INFO L482 AbstractCegarLoop]: Abstraction has 7418 states and 19669 transitions. [2021-06-12 17:26:48,420 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:48,420 INFO L276 IsEmpty]: Start isEmpty. Operand 7418 states and 19669 transitions. [2021-06-12 17:26:48,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:48,426 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:48,426 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:48,426 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-12 17:26:48,426 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]=== [2021-06-12 17:26:48,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:48,426 INFO L82 PathProgramCache]: Analyzing trace with hash -15292880, now seen corresponding path program 39 times [2021-06-12 17:26:48,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:48,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950455785] [2021-06-12 17:26:48,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:48,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:48,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:48,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950455785] [2021-06-12 17:26:48,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950455785] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:48,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:48,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:48,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6772183] [2021-06-12 17:26:48,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:48,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:48,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:48,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:48,719 INFO L87 Difference]: Start difference. First operand 7418 states and 19669 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:49,645 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:49,808 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:49,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:49,944 INFO L93 Difference]: Finished difference Result 19175 states and 51027 transitions. [2021-06-12 17:26:49,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:49,945 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:49,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:49,961 INFO L225 Difference]: With dead ends: 19175 [2021-06-12 17:26:49,961 INFO L226 Difference]: Without dead ends: 19175 [2021-06-12 17:26:49,962 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1111.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:49,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19175 states. [2021-06-12 17:26:50,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19175 to 7466. [2021-06-12 17:26:50,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7466 states, 7464 states have (on average 2.6536709539121115) internal successors, (19807), 7465 states have internal predecessors, (19807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7466 states to 7466 states and 19807 transitions. [2021-06-12 17:26:50,089 INFO L78 Accepts]: Start accepts. Automaton has 7466 states and 19807 transitions. Word has length 114 [2021-06-12 17:26:50,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:50,089 INFO L482 AbstractCegarLoop]: Abstraction has 7466 states and 19807 transitions. [2021-06-12 17:26:50,090 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:50,090 INFO L276 IsEmpty]: Start isEmpty. Operand 7466 states and 19807 transitions. [2021-06-12 17:26:50,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:50,095 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:50,095 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:50,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-12 17:26:50,096 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]=== [2021-06-12 17:26:50,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:50,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1897943856, now seen corresponding path program 40 times [2021-06-12 17:26:50,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:50,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890779940] [2021-06-12 17:26:50,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:50,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:50,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:50,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890779940] [2021-06-12 17:26:50,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890779940] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:50,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:50,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:50,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008196019] [2021-06-12 17:26:50,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:50,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:50,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:50,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:50,388 INFO L87 Difference]: Start difference. First operand 7466 states and 19807 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:51,184 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:51,326 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:51,487 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:51,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:51,619 INFO L93 Difference]: Finished difference Result 19247 states and 51159 transitions. [2021-06-12 17:26:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:51,619 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:51,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:51,637 INFO L225 Difference]: With dead ends: 19247 [2021-06-12 17:26:51,637 INFO L226 Difference]: Without dead ends: 19247 [2021-06-12 17:26:51,638 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1119.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:51,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19247 states. [2021-06-12 17:26:51,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19247 to 7482. [2021-06-12 17:26:51,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7482 states, 7480 states have (on average 2.654144385026738) internal successors, (19853), 7481 states have internal predecessors, (19853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:51,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7482 states to 7482 states and 19853 transitions. [2021-06-12 17:26:51,773 INFO L78 Accepts]: Start accepts. Automaton has 7482 states and 19853 transitions. Word has length 114 [2021-06-12 17:26:51,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:51,773 INFO L482 AbstractCegarLoop]: Abstraction has 7482 states and 19853 transitions. [2021-06-12 17:26:51,773 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:51,773 INFO L276 IsEmpty]: Start isEmpty. Operand 7482 states and 19853 transitions. [2021-06-12 17:26:51,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:51,779 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:51,779 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:51,779 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-12 17:26:51,779 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]=== [2021-06-12 17:26:51,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:51,779 INFO L82 PathProgramCache]: Analyzing trace with hash 809470670, now seen corresponding path program 41 times [2021-06-12 17:26:51,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:51,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983266909] [2021-06-12 17:26:51,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:52,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:52,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:52,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983266909] [2021-06-12 17:26:52,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983266909] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:52,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:52,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:52,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791452404] [2021-06-12 17:26:52,098 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:52,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:52,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:52,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:52,098 INFO L87 Difference]: Start difference. First operand 7482 states and 19853 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:52,890 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:53,046 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:26:53,206 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:26:53,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:53,346 INFO L93 Difference]: Finished difference Result 18657 states and 49237 transitions. [2021-06-12 17:26:53,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:53,346 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:53,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:53,363 INFO L225 Difference]: With dead ends: 18657 [2021-06-12 17:26:53,363 INFO L226 Difference]: Without dead ends: 18657 [2021-06-12 17:26:53,363 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1137.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:53,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18657 states. [2021-06-12 17:26:53,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18657 to 7434. [2021-06-12 17:26:53,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7434 states, 7432 states have (on average 2.6527179763186224) internal successors, (19715), 7433 states have internal predecessors, (19715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:53,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7434 states to 7434 states and 19715 transitions. [2021-06-12 17:26:53,496 INFO L78 Accepts]: Start accepts. Automaton has 7434 states and 19715 transitions. Word has length 114 [2021-06-12 17:26:53,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:53,496 INFO L482 AbstractCegarLoop]: Abstraction has 7434 states and 19715 transitions. [2021-06-12 17:26:53,496 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:53,496 INFO L276 IsEmpty]: Start isEmpty. Operand 7434 states and 19715 transitions. [2021-06-12 17:26:53,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:53,501 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:53,502 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:53,502 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-12 17:26:53,502 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]=== [2021-06-12 17:26:53,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:53,502 INFO L82 PathProgramCache]: Analyzing trace with hash -394110194, now seen corresponding path program 42 times [2021-06-12 17:26:53,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:53,502 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766019449] [2021-06-12 17:26:53,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:53,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:53,840 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:53,840 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766019449] [2021-06-12 17:26:53,840 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766019449] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:53,840 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:53,840 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:53,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986175931] [2021-06-12 17:26:53,840 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:53,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:53,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:53,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:53,841 INFO L87 Difference]: Start difference. First operand 7434 states and 19715 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:54,767 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:54,931 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:55,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:55,063 INFO L93 Difference]: Finished difference Result 15545 states and 41228 transitions. [2021-06-12 17:26:55,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:55,063 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:55,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:55,076 INFO L225 Difference]: With dead ends: 15545 [2021-06-12 17:26:55,077 INFO L226 Difference]: Without dead ends: 15545 [2021-06-12 17:26:55,077 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1101.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:55,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15545 states. [2021-06-12 17:26:55,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15545 to 7406. [2021-06-12 17:26:55,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7406 states, 7404 states have (on average 2.6516747703943815) internal successors, (19633), 7405 states have internal predecessors, (19633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:55,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7406 states to 7406 states and 19633 transitions. [2021-06-12 17:26:55,221 INFO L78 Accepts]: Start accepts. Automaton has 7406 states and 19633 transitions. Word has length 114 [2021-06-12 17:26:55,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:55,221 INFO L482 AbstractCegarLoop]: Abstraction has 7406 states and 19633 transitions. [2021-06-12 17:26:55,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:55,221 INFO L276 IsEmpty]: Start isEmpty. Operand 7406 states and 19633 transitions. [2021-06-12 17:26:55,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:55,228 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:55,228 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:55,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-12 17:26:55,228 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]=== [2021-06-12 17:26:55,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:55,229 INFO L82 PathProgramCache]: Analyzing trace with hash 917405998, now seen corresponding path program 43 times [2021-06-12 17:26:55,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:55,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136969492] [2021-06-12 17:26:55,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:55,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:55,563 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:55,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136969492] [2021-06-12 17:26:55,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136969492] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:55,564 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:55,564 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:55,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738764539] [2021-06-12 17:26:55,564 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:55,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:55,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:55,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:55,564 INFO L87 Difference]: Start difference. First operand 7406 states and 19633 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:56,498 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:56,661 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:56,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:56,786 INFO L93 Difference]: Finished difference Result 14590 states and 38623 transitions. [2021-06-12 17:26:56,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:56,787 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:56,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:56,799 INFO L225 Difference]: With dead ends: 14590 [2021-06-12 17:26:56,799 INFO L226 Difference]: Without dead ends: 14590 [2021-06-12 17:26:56,799 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1144.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:56,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14590 states. [2021-06-12 17:26:56,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14590 to 7526. [2021-06-12 17:26:56,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7524 states have (on average 2.6556353003721425) internal successors, (19981), 7525 states have internal predecessors, (19981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:56,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19981 transitions. [2021-06-12 17:26:56,906 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19981 transitions. Word has length 114 [2021-06-12 17:26:56,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:56,906 INFO L482 AbstractCegarLoop]: Abstraction has 7526 states and 19981 transitions. [2021-06-12 17:26:56,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:56,906 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19981 transitions. [2021-06-12 17:26:56,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:56,912 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:56,912 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:56,912 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-12 17:26:56,912 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]=== [2021-06-12 17:26:56,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:56,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1464324562, now seen corresponding path program 44 times [2021-06-12 17:26:56,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:56,912 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458451124] [2021-06-12 17:26:56,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:57,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:57,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:57,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458451124] [2021-06-12 17:26:57,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458451124] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:57,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:57,221 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:57,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500873761] [2021-06-12 17:26:57,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:57,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:57,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:57,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:57,222 INFO L87 Difference]: Start difference. First operand 7526 states and 19981 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:57,988 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:58,128 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:26:58,291 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:26:58,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:26:58,414 INFO L93 Difference]: Finished difference Result 17118 states and 45172 transitions. [2021-06-12 17:26:58,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:26:58,414 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:26:58,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:26:58,429 INFO L225 Difference]: With dead ends: 17118 [2021-06-12 17:26:58,429 INFO L226 Difference]: Without dead ends: 17118 [2021-06-12 17:26:58,429 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1092.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:26:58,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17118 states. [2021-06-12 17:26:58,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17118 to 7542. [2021-06-12 17:26:58,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7542 states, 7540 states have (on average 2.656100795755968) internal successors, (20027), 7541 states have internal predecessors, (20027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:58,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7542 states to 7542 states and 20027 transitions. [2021-06-12 17:26:58,551 INFO L78 Accepts]: Start accepts. Automaton has 7542 states and 20027 transitions. Word has length 114 [2021-06-12 17:26:58,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:26:58,551 INFO L482 AbstractCegarLoop]: Abstraction has 7542 states and 20027 transitions. [2021-06-12 17:26:58,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:58,551 INFO L276 IsEmpty]: Start isEmpty. Operand 7542 states and 20027 transitions. [2021-06-12 17:26:58,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:26:58,557 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:26:58,557 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:26:58,557 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-12 17:26:58,557 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]=== [2021-06-12 17:26:58,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:26:58,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1742169548, now seen corresponding path program 45 times [2021-06-12 17:26:58,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:26:58,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926236274] [2021-06-12 17:26:58,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:26:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:26:58,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:26:58,886 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:26:58,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926236274] [2021-06-12 17:26:58,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926236274] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:26:58,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:26:58,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:26:58,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692110000] [2021-06-12 17:26:58,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:26:58,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:26:58,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:26:58,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:26:58,887 INFO L87 Difference]: Start difference. First operand 7542 states and 20027 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:26:59,665 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:26:59,818 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:26:59,978 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:27:00,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:00,107 INFO L93 Difference]: Finished difference Result 15458 states and 40572 transitions. [2021-06-12 17:27:00,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:00,108 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:00,120 INFO L225 Difference]: With dead ends: 15458 [2021-06-12 17:27:00,120 INFO L226 Difference]: Without dead ends: 15458 [2021-06-12 17:27:00,121 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1106.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:00,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15458 states. [2021-06-12 17:27:00,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15458 to 7494. [2021-06-12 17:27:00,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7494 states, 7492 states have (on average 2.654698344901228) internal successors, (19889), 7493 states have internal predecessors, (19889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:00,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7494 states to 7494 states and 19889 transitions. [2021-06-12 17:27:00,234 INFO L78 Accepts]: Start accepts. Automaton has 7494 states and 19889 transitions. Word has length 114 [2021-06-12 17:27:00,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:00,234 INFO L482 AbstractCegarLoop]: Abstraction has 7494 states and 19889 transitions. [2021-06-12 17:27:00,234 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:00,234 INFO L276 IsEmpty]: Start isEmpty. Operand 7494 states and 19889 transitions. [2021-06-12 17:27:00,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:00,240 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:00,240 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:00,240 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-12 17:27:00,240 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]=== [2021-06-12 17:27:00,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:00,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1142577938, now seen corresponding path program 46 times [2021-06-12 17:27:00,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:00,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262725024] [2021-06-12 17:27:00,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:00,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:00,505 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:00,505 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262725024] [2021-06-12 17:27:00,505 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262725024] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:00,505 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:00,505 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:00,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138679655] [2021-06-12 17:27:00,505 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:00,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:00,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:00,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:00,506 INFO L87 Difference]: Start difference. First operand 7494 states and 19889 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:01,289 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:01,446 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:01,611 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:01,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:01,740 INFO L93 Difference]: Finished difference Result 18448 states and 48351 transitions. [2021-06-12 17:27:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:01,741 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:01,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:01,756 INFO L225 Difference]: With dead ends: 18448 [2021-06-12 17:27:01,756 INFO L226 Difference]: Without dead ends: 18448 [2021-06-12 17:27:01,757 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1122.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:01,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18448 states. [2021-06-12 17:27:01,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18448 to 7526. [2021-06-12 17:27:01,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7524 states have (on average 2.6556353003721425) internal successors, (19981), 7525 states have internal predecessors, (19981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:01,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19981 transitions. [2021-06-12 17:27:01,898 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19981 transitions. Word has length 114 [2021-06-12 17:27:01,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:01,898 INFO L482 AbstractCegarLoop]: Abstraction has 7526 states and 19981 transitions. [2021-06-12 17:27:01,898 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:01,898 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19981 transitions. [2021-06-12 17:27:01,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:01,903 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:01,903 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:01,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-12 17:27:01,904 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]=== [2021-06-12 17:27:01,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:01,904 INFO L82 PathProgramCache]: Analyzing trace with hash 2063916172, now seen corresponding path program 47 times [2021-06-12 17:27:01,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:01,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351223412] [2021-06-12 17:27:01,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:02,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:02,166 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:02,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351223412] [2021-06-12 17:27:02,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351223412] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:02,166 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:02,166 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:02,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253189517] [2021-06-12 17:27:02,166 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:02,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:02,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:02,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:02,167 INFO L87 Difference]: Start difference. First operand 7526 states and 19981 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:02,702 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-12 17:27:02,949 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:03,100 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:27:03,255 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:27:03,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:03,387 INFO L93 Difference]: Finished difference Result 19261 states and 50155 transitions. [2021-06-12 17:27:03,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:03,387 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:03,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:03,405 INFO L225 Difference]: With dead ends: 19261 [2021-06-12 17:27:03,405 INFO L226 Difference]: Without dead ends: 19261 [2021-06-12 17:27:03,405 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1110.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:03,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19261 states. [2021-06-12 17:27:03,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19261 to 7510. [2021-06-12 17:27:03,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7510 states, 7508 states have (on average 2.655167820990943) internal successors, (19935), 7509 states have internal predecessors, (19935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:03,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 19935 transitions. [2021-06-12 17:27:03,543 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 19935 transitions. Word has length 114 [2021-06-12 17:27:03,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:03,543 INFO L482 AbstractCegarLoop]: Abstraction has 7510 states and 19935 transitions. [2021-06-12 17:27:03,543 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:03,543 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 19935 transitions. [2021-06-12 17:27:03,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:03,549 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:03,549 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:03,549 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-12 17:27:03,549 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]=== [2021-06-12 17:27:03,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:03,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1433187664, now seen corresponding path program 48 times [2021-06-12 17:27:03,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:03,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81430387] [2021-06-12 17:27:03,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:03,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:03,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:03,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81430387] [2021-06-12 17:27:03,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81430387] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:03,823 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:03,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:03,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449184407] [2021-06-12 17:27:03,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:03,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:03,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:03,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:03,823 INFO L87 Difference]: Start difference. First operand 7510 states and 19935 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:04,623 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:04,775 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:27:04,939 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:27:05,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:05,080 INFO L93 Difference]: Finished difference Result 18587 states and 48568 transitions. [2021-06-12 17:27:05,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:05,081 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:05,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:05,096 INFO L225 Difference]: With dead ends: 18587 [2021-06-12 17:27:05,096 INFO L226 Difference]: Without dead ends: 18587 [2021-06-12 17:27:05,096 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1106.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:05,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18587 states. [2021-06-12 17:27:05,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18587 to 7526. [2021-06-12 17:27:05,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7524 states have (on average 2.6556353003721425) internal successors, (19981), 7525 states have internal predecessors, (19981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:05,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19981 transitions. [2021-06-12 17:27:05,224 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19981 transitions. Word has length 114 [2021-06-12 17:27:05,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:05,225 INFO L482 AbstractCegarLoop]: Abstraction has 7526 states and 19981 transitions. [2021-06-12 17:27:05,225 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:05,225 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19981 transitions. [2021-06-12 17:27:05,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:05,230 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:05,230 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:05,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-12 17:27:05,230 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]=== [2021-06-12 17:27:05,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:05,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1681734644, now seen corresponding path program 49 times [2021-06-12 17:27:05,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:05,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811264863] [2021-06-12 17:27:05,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:05,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:05,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:05,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811264863] [2021-06-12 17:27:05,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811264863] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:05,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:05,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:05,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461023761] [2021-06-12 17:27:05,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:05,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:05,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:05,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:05,517 INFO L87 Difference]: Start difference. First operand 7526 states and 19981 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:06,277 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:06,417 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:06,594 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:06,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:06,704 INFO L93 Difference]: Finished difference Result 15652 states and 41094 transitions. [2021-06-12 17:27:06,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:06,705 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:06,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:06,718 INFO L225 Difference]: With dead ends: 15652 [2021-06-12 17:27:06,718 INFO L226 Difference]: Without dead ends: 15652 [2021-06-12 17:27:06,718 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1113.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:06,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15652 states. [2021-06-12 17:27:06,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15652 to 7462. [2021-06-12 17:27:06,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7462 states, 7460 states have (on average 2.653753351206434) internal successors, (19797), 7461 states have internal predecessors, (19797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:06,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7462 states to 7462 states and 19797 transitions. [2021-06-12 17:27:06,831 INFO L78 Accepts]: Start accepts. Automaton has 7462 states and 19797 transitions. Word has length 114 [2021-06-12 17:27:06,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:06,831 INFO L482 AbstractCegarLoop]: Abstraction has 7462 states and 19797 transitions. [2021-06-12 17:27:06,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:06,831 INFO L276 IsEmpty]: Start isEmpty. Operand 7462 states and 19797 transitions. [2021-06-12 17:27:06,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:06,837 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:06,837 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:06,837 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-12 17:27:06,837 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]=== [2021-06-12 17:27:06,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:06,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1277780112, now seen corresponding path program 50 times [2021-06-12 17:27:06,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:06,838 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398942181] [2021-06-12 17:27:06,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:07,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:07,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:07,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398942181] [2021-06-12 17:27:07,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398942181] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:07,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:07,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:07,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823872716] [2021-06-12 17:27:07,098 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:07,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:07,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:07,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:07,098 INFO L87 Difference]: Start difference. First operand 7462 states and 19797 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:07,889 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:08,035 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:08,199 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:08,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:08,324 INFO L93 Difference]: Finished difference Result 14168 states and 37433 transitions. [2021-06-12 17:27:08,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:08,324 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:08,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:08,363 INFO L225 Difference]: With dead ends: 14168 [2021-06-12 17:27:08,363 INFO L226 Difference]: Without dead ends: 14168 [2021-06-12 17:27:08,363 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1092.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:08,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14168 states. [2021-06-12 17:27:08,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14168 to 7522. [2021-06-12 17:27:08,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7522 states, 7520 states have (on average 2.655718085106383) internal successors, (19971), 7521 states have internal predecessors, (19971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:08,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7522 states to 7522 states and 19971 transitions. [2021-06-12 17:27:08,463 INFO L78 Accepts]: Start accepts. Automaton has 7522 states and 19971 transitions. Word has length 114 [2021-06-12 17:27:08,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:08,463 INFO L482 AbstractCegarLoop]: Abstraction has 7522 states and 19971 transitions. [2021-06-12 17:27:08,463 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:08,463 INFO L276 IsEmpty]: Start isEmpty. Operand 7522 states and 19971 transitions. [2021-06-12 17:27:08,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:08,469 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:08,469 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:08,469 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-12 17:27:08,469 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]=== [2021-06-12 17:27:08,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:08,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1928713998, now seen corresponding path program 51 times [2021-06-12 17:27:08,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:08,469 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365490652] [2021-06-12 17:27:08,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:08,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:08,744 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:08,744 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365490652] [2021-06-12 17:27:08,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365490652] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:08,744 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:08,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:08,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261839020] [2021-06-12 17:27:08,744 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:08,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:08,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:08,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:08,745 INFO L87 Difference]: Start difference. First operand 7522 states and 19971 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:09,505 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:09,658 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:27:09,815 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:27:09,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:09,931 INFO L93 Difference]: Finished difference Result 14981 states and 39237 transitions. [2021-06-12 17:27:09,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:09,932 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:09,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:09,944 INFO L225 Difference]: With dead ends: 14981 [2021-06-12 17:27:09,944 INFO L226 Difference]: Without dead ends: 14981 [2021-06-12 17:27:09,945 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1096.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:09,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14981 states. [2021-06-12 17:27:10,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14981 to 7506. [2021-06-12 17:27:10,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7506 states, 7504 states have (on average 2.6552505330490406) internal successors, (19925), 7505 states have internal predecessors, (19925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:10,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7506 states to 7506 states and 19925 transitions. [2021-06-12 17:27:10,098 INFO L78 Accepts]: Start accepts. Automaton has 7506 states and 19925 transitions. Word has length 114 [2021-06-12 17:27:10,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:10,099 INFO L482 AbstractCegarLoop]: Abstraction has 7506 states and 19925 transitions. [2021-06-12 17:27:10,099 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:10,099 INFO L276 IsEmpty]: Start isEmpty. Operand 7506 states and 19925 transitions. [2021-06-12 17:27:10,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:10,105 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:10,105 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:10,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-12 17:27:10,105 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]=== [2021-06-12 17:27:10,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:10,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1568389838, now seen corresponding path program 52 times [2021-06-12 17:27:10,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:10,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024383033] [2021-06-12 17:27:10,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:10,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:10,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:10,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024383033] [2021-06-12 17:27:10,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024383033] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:10,377 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:10,377 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:10,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407058570] [2021-06-12 17:27:10,377 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:10,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:10,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:10,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:10,377 INFO L87 Difference]: Start difference. First operand 7506 states and 19925 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:11,156 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:11,314 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:27:11,478 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:27:11,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:11,620 INFO L93 Difference]: Finished difference Result 18094 states and 47187 transitions. [2021-06-12 17:27:11,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:11,620 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:11,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:11,636 INFO L225 Difference]: With dead ends: 18094 [2021-06-12 17:27:11,636 INFO L226 Difference]: Without dead ends: 18094 [2021-06-12 17:27:11,636 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1103.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:11,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18094 states. [2021-06-12 17:27:11,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18094 to 7522. [2021-06-12 17:27:11,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7522 states, 7520 states have (on average 2.655718085106383) internal successors, (19971), 7521 states have internal predecessors, (19971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:11,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7522 states to 7522 states and 19971 transitions. [2021-06-12 17:27:11,767 INFO L78 Accepts]: Start accepts. Automaton has 7522 states and 19971 transitions. Word has length 114 [2021-06-12 17:27:11,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:11,768 INFO L482 AbstractCegarLoop]: Abstraction has 7522 states and 19971 transitions. [2021-06-12 17:27:11,768 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:11,768 INFO L276 IsEmpty]: Start isEmpty. Operand 7522 states and 19971 transitions. [2021-06-12 17:27:11,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:11,774 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:11,774 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:11,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-06-12 17:27:11,774 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]=== [2021-06-12 17:27:11,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:11,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1816936818, now seen corresponding path program 53 times [2021-06-12 17:27:11,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:11,774 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213740459] [2021-06-12 17:27:11,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:12,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:12,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:12,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213740459] [2021-06-12 17:27:12,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213740459] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:12,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:12,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:12,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345289118] [2021-06-12 17:27:12,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:12,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:12,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:12,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:12,069 INFO L87 Difference]: Start difference. First operand 7522 states and 19971 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:12,848 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:12,991 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:13,152 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:13,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:13,266 INFO L93 Difference]: Finished difference Result 15159 states and 39713 transitions. [2021-06-12 17:27:13,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:13,266 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:13,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:13,279 INFO L225 Difference]: With dead ends: 15159 [2021-06-12 17:27:13,279 INFO L226 Difference]: Without dead ends: 15159 [2021-06-12 17:27:13,279 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1087.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:13,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15159 states. [2021-06-12 17:27:13,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15159 to 7490. [2021-06-12 17:27:13,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7490 states, 7488 states have (on average 2.654780982905983) internal successors, (19879), 7489 states have internal predecessors, (19879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:13,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7490 states to 7490 states and 19879 transitions. [2021-06-12 17:27:13,391 INFO L78 Accepts]: Start accepts. Automaton has 7490 states and 19879 transitions. Word has length 114 [2021-06-12 17:27:13,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:13,391 INFO L482 AbstractCegarLoop]: Abstraction has 7490 states and 19879 transitions. [2021-06-12 17:27:13,391 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:13,391 INFO L276 IsEmpty]: Start isEmpty. Operand 7490 states and 19879 transitions. [2021-06-12 17:27:13,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:13,397 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:13,397 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:13,397 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-06-12 17:27:13,397 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]=== [2021-06-12 17:27:13,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:13,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1457760172, now seen corresponding path program 54 times [2021-06-12 17:27:13,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:13,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163356500] [2021-06-12 17:27:13,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:13,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:13,695 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:13,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163356500] [2021-06-12 17:27:13,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163356500] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:13,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:13,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:13,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564450806] [2021-06-12 17:27:13,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:13,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:13,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:13,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:13,696 INFO L87 Difference]: Start difference. First operand 7490 states and 19879 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:14,469 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:14,622 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:27:14,782 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:27:14,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:14,906 INFO L93 Difference]: Finished difference Result 14291 states and 37604 transitions. [2021-06-12 17:27:14,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:14,906 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:14,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:14,918 INFO L225 Difference]: With dead ends: 14291 [2021-06-12 17:27:14,918 INFO L226 Difference]: Without dead ends: 14291 [2021-06-12 17:27:14,918 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1114.9ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:14,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14291 states. [2021-06-12 17:27:15,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14291 to 7534. [2021-06-12 17:27:15,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7532 states have (on average 2.656266595857674) internal successors, (20007), 7533 states have internal predecessors, (20007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:15,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 20007 transitions. [2021-06-12 17:27:15,027 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 20007 transitions. Word has length 114 [2021-06-12 17:27:15,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:15,027 INFO L482 AbstractCegarLoop]: Abstraction has 7534 states and 20007 transitions. [2021-06-12 17:27:15,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:15,027 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 20007 transitions. [2021-06-12 17:27:15,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:15,033 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:15,033 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:15,033 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-12 17:27:15,033 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]=== [2021-06-12 17:27:15,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:15,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1209213192, now seen corresponding path program 55 times [2021-06-12 17:27:15,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:15,033 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360262473] [2021-06-12 17:27:15,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:15,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:15,298 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:15,298 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360262473] [2021-06-12 17:27:15,298 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360262473] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:15,299 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:15,299 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:15,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363873005] [2021-06-12 17:27:15,299 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:15,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:15,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:15,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:15,299 INFO L87 Difference]: Start difference. First operand 7534 states and 20007 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:16,083 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:16,228 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:16,391 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:16,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:16,507 INFO L93 Difference]: Finished difference Result 14131 states and 37202 transitions. [2021-06-12 17:27:16,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:16,507 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:16,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:16,520 INFO L225 Difference]: With dead ends: 14131 [2021-06-12 17:27:16,520 INFO L226 Difference]: Without dead ends: 14131 [2021-06-12 17:27:16,520 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1098.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:16,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14131 states. [2021-06-12 17:27:16,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14131 to 7518. [2021-06-12 17:27:16,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 7516 states have (on average 2.6558009579563597) internal successors, (19961), 7517 states have internal predecessors, (19961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:16,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 19961 transitions. [2021-06-12 17:27:16,627 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 19961 transitions. Word has length 114 [2021-06-12 17:27:16,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:16,627 INFO L482 AbstractCegarLoop]: Abstraction has 7518 states and 19961 transitions. [2021-06-12 17:27:16,627 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:16,627 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 19961 transitions. [2021-06-12 17:27:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:16,632 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:16,632 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:16,632 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-06-12 17:27:16,632 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]=== [2021-06-12 17:27:16,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:16,633 INFO L82 PathProgramCache]: Analyzing trace with hash 52395888, now seen corresponding path program 56 times [2021-06-12 17:27:16,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:16,633 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936148106] [2021-06-12 17:27:16,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:16,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:16,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:16,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936148106] [2021-06-12 17:27:16,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936148106] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:16,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:16,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:16,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293314418] [2021-06-12 17:27:16,902 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:16,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:16,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:16,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:16,902 INFO L87 Difference]: Start difference. First operand 7518 states and 19961 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:17,550 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-12 17:27:17,681 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-12 17:27:17,836 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:17,998 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:18,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:18,108 INFO L93 Difference]: Finished difference Result 11564 states and 30656 transitions. [2021-06-12 17:27:18,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:18,109 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:18,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:18,118 INFO L225 Difference]: With dead ends: 11564 [2021-06-12 17:27:18,118 INFO L226 Difference]: Without dead ends: 11564 [2021-06-12 17:27:18,118 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1116.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:18,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11564 states. [2021-06-12 17:27:18,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11564 to 7686. [2021-06-12 17:27:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7684 states have (on average 2.661764705882353) internal successors, (20453), 7685 states have internal predecessors, (20453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:18,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20453 transitions. [2021-06-12 17:27:18,220 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20453 transitions. Word has length 114 [2021-06-12 17:27:18,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:18,220 INFO L482 AbstractCegarLoop]: Abstraction has 7686 states and 20453 transitions. [2021-06-12 17:27:18,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:18,220 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20453 transitions. [2021-06-12 17:27:18,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:18,226 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:18,226 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:18,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-06-12 17:27:18,226 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]=== [2021-06-12 17:27:18,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:18,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1938511328, now seen corresponding path program 3 times [2021-06-12 17:27:18,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:18,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200762723] [2021-06-12 17:27:18,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:18,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:18,762 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:18,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200762723] [2021-06-12 17:27:18,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200762723] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:18,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:18,762 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-12 17:27:18,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153998517] [2021-06-12 17:27:18,762 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-12 17:27:18,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:18,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-12 17:27:18,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2021-06-12 17:27:18,763 INFO L87 Difference]: Start difference. First operand 7686 states and 20453 transitions. Second operand has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:22,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:22,880 INFO L93 Difference]: Finished difference Result 12859 states and 34350 transitions. [2021-06-12 17:27:22,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-06-12 17:27:22,881 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:22,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:22,891 INFO L225 Difference]: With dead ends: 12859 [2021-06-12 17:27:22,891 INFO L226 Difference]: Without dead ends: 12859 [2021-06-12 17:27:22,892 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1737 ImplicationChecksByTransitivity, 3013.4ms TimeCoverageRelationStatistics Valid=1658, Invalid=5824, Unknown=0, NotChecked=0, Total=7482 [2021-06-12 17:27:22,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12859 states. [2021-06-12 17:27:22,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12859 to 10747. [2021-06-12 17:27:23,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10747 states, 10745 states have (on average 2.7100977198697067) internal successors, (29120), 10746 states have internal predecessors, (29120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:23,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10747 states to 10747 states and 29120 transitions. [2021-06-12 17:27:23,015 INFO L78 Accepts]: Start accepts. Automaton has 10747 states and 29120 transitions. Word has length 114 [2021-06-12 17:27:23,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:23,016 INFO L482 AbstractCegarLoop]: Abstraction has 10747 states and 29120 transitions. [2021-06-12 17:27:23,016 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:23,016 INFO L276 IsEmpty]: Start isEmpty. Operand 10747 states and 29120 transitions. [2021-06-12 17:27:23,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:23,024 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:23,024 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:23,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-06-12 17:27:23,024 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]=== [2021-06-12 17:27:23,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:23,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1548580200, now seen corresponding path program 57 times [2021-06-12 17:27:23,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:23,025 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994819257] [2021-06-12 17:27:23,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:23,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:23,308 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:23,308 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994819257] [2021-06-12 17:27:23,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994819257] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:23,308 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:23,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 17:27:23,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944883872] [2021-06-12 17:27:23,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 17:27:23,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:23,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 17:27:23,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:27:23,309 INFO L87 Difference]: Start difference. First operand 10747 states and 29120 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:24,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:24,275 INFO L93 Difference]: Finished difference Result 12515 states and 32935 transitions. [2021-06-12 17:27:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-12 17:27:24,276 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:24,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:24,287 INFO L225 Difference]: With dead ends: 12515 [2021-06-12 17:27:24,287 INFO L226 Difference]: Without dead ends: 12515 [2021-06-12 17:27:24,288 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 827.6ms TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2021-06-12 17:27:24,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12515 states. [2021-06-12 17:27:24,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12515 to 10609. [2021-06-12 17:27:24,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10609 states, 10607 states have (on average 2.71499952861318) internal successors, (28798), 10608 states have internal predecessors, (28798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:24,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10609 states to 10609 states and 28798 transitions. [2021-06-12 17:27:24,449 INFO L78 Accepts]: Start accepts. Automaton has 10609 states and 28798 transitions. Word has length 114 [2021-06-12 17:27:24,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:24,450 INFO L482 AbstractCegarLoop]: Abstraction has 10609 states and 28798 transitions. [2021-06-12 17:27:24,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:24,450 INFO L276 IsEmpty]: Start isEmpty. Operand 10609 states and 28798 transitions. [2021-06-12 17:27:24,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:24,458 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:24,458 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:24,458 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-06-12 17:27:24,458 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]=== [2021-06-12 17:27:24,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:24,459 INFO L82 PathProgramCache]: Analyzing trace with hash 125932496, now seen corresponding path program 58 times [2021-06-12 17:27:24,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:24,459 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039554602] [2021-06-12 17:27:24,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:24,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:24,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:24,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039554602] [2021-06-12 17:27:24,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039554602] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:24,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:24,754 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:24,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102973538] [2021-06-12 17:27:24,754 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:24,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:24,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:24,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:24,755 INFO L87 Difference]: Start difference. First operand 10609 states and 28798 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:25,683 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:25,846 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:26,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:26,011 INFO L93 Difference]: Finished difference Result 25217 states and 67035 transitions. [2021-06-12 17:27:26,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:26,011 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:26,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:26,034 INFO L225 Difference]: With dead ends: 25217 [2021-06-12 17:27:26,034 INFO L226 Difference]: Without dead ends: 25217 [2021-06-12 17:27:26,034 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1100.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:26,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25217 states. [2021-06-12 17:27:26,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25217 to 10721. [2021-06-12 17:27:26,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10721 states, 10719 states have (on average 2.7172310849892716) internal successors, (29126), 10720 states have internal predecessors, (29126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:26,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10721 states to 10721 states and 29126 transitions. [2021-06-12 17:27:26,238 INFO L78 Accepts]: Start accepts. Automaton has 10721 states and 29126 transitions. Word has length 114 [2021-06-12 17:27:26,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:26,238 INFO L482 AbstractCegarLoop]: Abstraction has 10721 states and 29126 transitions. [2021-06-12 17:27:26,238 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:26,238 INFO L276 IsEmpty]: Start isEmpty. Operand 10721 states and 29126 transitions. [2021-06-12 17:27:26,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:26,246 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:26,246 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:26,246 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-06-12 17:27:26,247 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]=== [2021-06-12 17:27:26,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:26,247 INFO L82 PathProgramCache]: Analyzing trace with hash 2039169232, now seen corresponding path program 59 times [2021-06-12 17:27:26,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:26,247 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009070485] [2021-06-12 17:27:26,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:26,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:26,518 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:26,518 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009070485] [2021-06-12 17:27:26,518 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009070485] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:26,518 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:26,519 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:26,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020143406] [2021-06-12 17:27:26,519 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:26,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:26,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:26,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:26,519 INFO L87 Difference]: Start difference. First operand 10721 states and 29126 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:27,282 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:27,425 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:27,590 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:27,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:27,755 INFO L93 Difference]: Finished difference Result 29930 states and 79470 transitions. [2021-06-12 17:27:27,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:27,756 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:27,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:27,783 INFO L225 Difference]: With dead ends: 29930 [2021-06-12 17:27:27,783 INFO L226 Difference]: Without dead ends: 29930 [2021-06-12 17:27:27,784 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1086.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:27,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29930 states. [2021-06-12 17:27:27,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29930 to 10749. [2021-06-12 17:27:27,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10749 states, 10747 states have (on average 2.7177817065227505) internal successors, (29208), 10748 states have internal predecessors, (29208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:28,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10749 states to 10749 states and 29208 transitions. [2021-06-12 17:27:28,009 INFO L78 Accepts]: Start accepts. Automaton has 10749 states and 29208 transitions. Word has length 114 [2021-06-12 17:27:28,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:28,009 INFO L482 AbstractCegarLoop]: Abstraction has 10749 states and 29208 transitions. [2021-06-12 17:27:28,009 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:28,009 INFO L276 IsEmpty]: Start isEmpty. Operand 10749 states and 29208 transitions. [2021-06-12 17:27:28,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:28,018 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:28,018 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:28,018 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-06-12 17:27:28,018 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]=== [2021-06-12 17:27:28,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:28,018 INFO L82 PathProgramCache]: Analyzing trace with hash 950696046, now seen corresponding path program 60 times [2021-06-12 17:27:28,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:28,019 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632893026] [2021-06-12 17:27:28,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:28,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:28,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:28,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632893026] [2021-06-12 17:27:28,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632893026] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:28,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:28,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:28,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923859935] [2021-06-12 17:27:28,319 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:28,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:28,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:28,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:28,319 INFO L87 Difference]: Start difference. First operand 10749 states and 29208 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:29,130 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:29,288 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:27:29,454 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:27:29,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:29,629 INFO L93 Difference]: Finished difference Result 26710 states and 70549 transitions. [2021-06-12 17:27:29,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:29,629 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:29,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:29,654 INFO L225 Difference]: With dead ends: 26710 [2021-06-12 17:27:29,654 INFO L226 Difference]: Without dead ends: 26710 [2021-06-12 17:27:29,654 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1134.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:29,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26710 states. [2021-06-12 17:27:29,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26710 to 10665. [2021-06-12 17:27:29,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10665 states, 10663 states have (on average 2.7161211666510363) internal successors, (28962), 10664 states have internal predecessors, (28962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:29,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10665 states to 10665 states and 28962 transitions. [2021-06-12 17:27:29,856 INFO L78 Accepts]: Start accepts. Automaton has 10665 states and 28962 transitions. Word has length 114 [2021-06-12 17:27:29,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:29,856 INFO L482 AbstractCegarLoop]: Abstraction has 10665 states and 28962 transitions. [2021-06-12 17:27:29,856 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:29,856 INFO L276 IsEmpty]: Start isEmpty. Operand 10665 states and 28962 transitions. [2021-06-12 17:27:29,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:29,864 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:29,864 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:29,864 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-06-12 17:27:29,864 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]=== [2021-06-12 17:27:29,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:29,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1934051440, now seen corresponding path program 61 times [2021-06-12 17:27:29,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:29,865 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235019975] [2021-06-12 17:27:29,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:30,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:30,146 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:30,146 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235019975] [2021-06-12 17:27:30,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235019975] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:30,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:30,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:30,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499992811] [2021-06-12 17:27:30,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:30,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:30,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:30,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:30,147 INFO L87 Difference]: Start difference. First operand 10665 states and 28962 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:30,912 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:31,056 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:31,218 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:31,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:31,377 INFO L93 Difference]: Finished difference Result 25431 states and 67389 transitions. [2021-06-12 17:27:31,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:31,377 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:31,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:31,402 INFO L225 Difference]: With dead ends: 25431 [2021-06-12 17:27:31,403 INFO L226 Difference]: Without dead ends: 25431 [2021-06-12 17:27:31,403 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1106.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:31,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25431 states. [2021-06-12 17:27:31,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25431 to 10707. [2021-06-12 17:27:31,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10707 states, 10705 states have (on average 2.7169546940681926) internal successors, (29085), 10706 states have internal predecessors, (29085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:31,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10707 states to 10707 states and 29085 transitions. [2021-06-12 17:27:31,628 INFO L78 Accepts]: Start accepts. Automaton has 10707 states and 29085 transitions. Word has length 114 [2021-06-12 17:27:31,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:31,628 INFO L482 AbstractCegarLoop]: Abstraction has 10707 states and 29085 transitions. [2021-06-12 17:27:31,628 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:31,628 INFO L276 IsEmpty]: Start isEmpty. Operand 10707 states and 29085 transitions. [2021-06-12 17:27:31,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:31,638 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:31,638 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:31,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-06-12 17:27:31,638 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]=== [2021-06-12 17:27:31,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:31,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1272442670, now seen corresponding path program 62 times [2021-06-12 17:27:31,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:31,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741145667] [2021-06-12 17:27:31,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:31,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:31,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741145667] [2021-06-12 17:27:31,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741145667] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:31,911 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:31,911 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:31,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803727581] [2021-06-12 17:27:31,911 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:31,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:31,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:31,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:31,912 INFO L87 Difference]: Start difference. First operand 10707 states and 29085 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:32,690 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:32,843 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:27:32,999 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:27:33,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:33,157 INFO L93 Difference]: Finished difference Result 26807 states and 70592 transitions. [2021-06-12 17:27:33,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:33,157 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:33,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:33,182 INFO L225 Difference]: With dead ends: 26807 [2021-06-12 17:27:33,182 INFO L226 Difference]: Without dead ends: 26807 [2021-06-12 17:27:33,182 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1108.9ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:33,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26807 states. [2021-06-12 17:27:33,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26807 to 10679. [2021-06-12 17:27:33,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10679 states, 10677 states have (on average 2.7163997377540507) internal successors, (29003), 10678 states have internal predecessors, (29003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:33,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10679 states to 10679 states and 29003 transitions. [2021-06-12 17:27:33,393 INFO L78 Accepts]: Start accepts. Automaton has 10679 states and 29003 transitions. Word has length 114 [2021-06-12 17:27:33,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:33,394 INFO L482 AbstractCegarLoop]: Abstraction has 10679 states and 29003 transitions. [2021-06-12 17:27:33,394 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:33,394 INFO L276 IsEmpty]: Start isEmpty. Operand 10679 states and 29003 transitions. [2021-06-12 17:27:33,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:33,402 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:33,403 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:33,403 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-06-12 17:27:33,403 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]=== [2021-06-12 17:27:33,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:33,403 INFO L82 PathProgramCache]: Analyzing trace with hash 2070306130, now seen corresponding path program 63 times [2021-06-12 17:27:33,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:33,403 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553161616] [2021-06-12 17:27:33,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:33,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:33,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:33,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553161616] [2021-06-12 17:27:33,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553161616] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:33,672 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:33,672 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:33,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752500539] [2021-06-12 17:27:33,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:33,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:33,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:33,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:33,672 INFO L87 Difference]: Start difference. First operand 10679 states and 29003 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:34,444 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:34,598 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:27:34,763 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:27:34,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:34,966 INFO L93 Difference]: Finished difference Result 25680 states and 67792 transitions. [2021-06-12 17:27:34,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:34,966 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:34,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:34,981 INFO L225 Difference]: With dead ends: 25680 [2021-06-12 17:27:34,981 INFO L226 Difference]: Without dead ends: 25680 [2021-06-12 17:27:34,981 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1092.9ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:35,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25680 states. [2021-06-12 17:27:35,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25680 to 10693. [2021-06-12 17:27:35,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10693 states, 10691 states have (on average 2.716677579272285) internal successors, (29044), 10692 states have internal predecessors, (29044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:35,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10693 states to 10693 states and 29044 transitions. [2021-06-12 17:27:35,139 INFO L78 Accepts]: Start accepts. Automaton has 10693 states and 29044 transitions. Word has length 114 [2021-06-12 17:27:35,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:35,140 INFO L482 AbstractCegarLoop]: Abstraction has 10693 states and 29044 transitions. [2021-06-12 17:27:35,140 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:35,140 INFO L276 IsEmpty]: Start isEmpty. Operand 10693 states and 29044 transitions. [2021-06-12 17:27:35,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:35,147 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:35,147 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:35,148 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-06-12 17:27:35,148 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]=== [2021-06-12 17:27:35,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:35,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1821759150, now seen corresponding path program 64 times [2021-06-12 17:27:35,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:35,148 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959763092] [2021-06-12 17:27:35,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:35,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:35,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:35,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959763092] [2021-06-12 17:27:35,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959763092] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:35,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:35,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:35,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351023933] [2021-06-12 17:27:35,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:35,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:35,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:35,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:35,410 INFO L87 Difference]: Start difference. First operand 10693 states and 29044 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:36,166 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:36,308 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:36,467 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:36,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:36,601 INFO L93 Difference]: Finished difference Result 20886 states and 55284 transitions. [2021-06-12 17:27:36,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:36,601 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:36,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:36,619 INFO L225 Difference]: With dead ends: 20886 [2021-06-12 17:27:36,619 INFO L226 Difference]: Without dead ends: 20886 [2021-06-12 17:27:36,619 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1076.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:36,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20886 states. [2021-06-12 17:27:36,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20886 to 10497. [2021-06-12 17:27:36,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10497 states, 10495 states have (on average 2.712720343020486) internal successors, (28470), 10496 states have internal predecessors, (28470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:36,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10497 states to 10497 states and 28470 transitions. [2021-06-12 17:27:36,792 INFO L78 Accepts]: Start accepts. Automaton has 10497 states and 28470 transitions. Word has length 114 [2021-06-12 17:27:36,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:36,793 INFO L482 AbstractCegarLoop]: Abstraction has 10497 states and 28470 transitions. [2021-06-12 17:27:36,793 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:36,793 INFO L276 IsEmpty]: Start isEmpty. Operand 10497 states and 28470 transitions. [2021-06-12 17:27:36,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:36,801 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:36,801 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:36,801 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-06-12 17:27:36,801 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]=== [2021-06-12 17:27:36,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:36,801 INFO L82 PathProgramCache]: Analyzing trace with hash 31254258, now seen corresponding path program 65 times [2021-06-12 17:27:36,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:36,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574284850] [2021-06-12 17:27:36,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:37,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:37,098 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:37,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574284850] [2021-06-12 17:27:37,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574284850] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:37,098 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:37,098 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:37,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412442489] [2021-06-12 17:27:37,098 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:37,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:37,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:37,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:37,099 INFO L87 Difference]: Start difference. First operand 10497 states and 28470 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:38,008 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:38,173 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:38,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:38,346 INFO L93 Difference]: Finished difference Result 30283 states and 80722 transitions. [2021-06-12 17:27:38,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:38,346 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:38,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:38,376 INFO L225 Difference]: With dead ends: 30283 [2021-06-12 17:27:38,376 INFO L226 Difference]: Without dead ends: 30283 [2021-06-12 17:27:38,376 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1100.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:38,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30283 states. [2021-06-12 17:27:38,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30283 to 10581. [2021-06-12 17:27:38,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10581 states, 10579 states have (on average 2.7144342565459874) internal successors, (28716), 10580 states have internal predecessors, (28716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:38,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10581 states to 10581 states and 28716 transitions. [2021-06-12 17:27:38,591 INFO L78 Accepts]: Start accepts. Automaton has 10581 states and 28716 transitions. Word has length 114 [2021-06-12 17:27:38,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:38,591 INFO L482 AbstractCegarLoop]: Abstraction has 10581 states and 28716 transitions. [2021-06-12 17:27:38,591 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:38,591 INFO L276 IsEmpty]: Start isEmpty. Operand 10581 states and 28716 transitions. [2021-06-12 17:27:38,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:38,599 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:38,599 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:38,599 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-06-12 17:27:38,599 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]=== [2021-06-12 17:27:38,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:38,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1944490994, now seen corresponding path program 66 times [2021-06-12 17:27:38,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:38,600 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575272790] [2021-06-12 17:27:38,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:38,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:38,881 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:38,881 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575272790] [2021-06-12 17:27:38,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575272790] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:38,882 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:38,882 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:38,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238207108] [2021-06-12 17:27:38,882 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:38,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:38,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:38,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:38,882 INFO L87 Difference]: Start difference. First operand 10581 states and 28716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:39,653 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:39,799 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:39,962 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:40,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:40,172 INFO L93 Difference]: Finished difference Result 30451 states and 81046 transitions. [2021-06-12 17:27:40,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:40,173 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:40,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:40,197 INFO L225 Difference]: With dead ends: 30451 [2021-06-12 17:27:40,197 INFO L226 Difference]: Without dead ends: 30451 [2021-06-12 17:27:40,198 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1098.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:40,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30451 states. [2021-06-12 17:27:40,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30451 to 10609. [2021-06-12 17:27:40,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10609 states, 10607 states have (on average 2.71499952861318) internal successors, (28798), 10608 states have internal predecessors, (28798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:40,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10609 states to 10609 states and 28798 transitions. [2021-06-12 17:27:40,388 INFO L78 Accepts]: Start accepts. Automaton has 10609 states and 28798 transitions. Word has length 114 [2021-06-12 17:27:40,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:40,388 INFO L482 AbstractCegarLoop]: Abstraction has 10609 states and 28798 transitions. [2021-06-12 17:27:40,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:40,388 INFO L276 IsEmpty]: Start isEmpty. Operand 10609 states and 28798 transitions. [2021-06-12 17:27:40,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:40,396 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:40,396 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:40,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-06-12 17:27:40,396 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]=== [2021-06-12 17:27:40,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:40,396 INFO L82 PathProgramCache]: Analyzing trace with hash 856017808, now seen corresponding path program 67 times [2021-06-12 17:27:40,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:40,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008226678] [2021-06-12 17:27:40,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:40,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:40,685 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:40,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008226678] [2021-06-12 17:27:40,685 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008226678] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:40,685 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:40,685 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:40,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770764951] [2021-06-12 17:27:40,685 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:40,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:40,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:40,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:40,686 INFO L87 Difference]: Start difference. First operand 10609 states and 28798 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:41,451 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:41,606 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:27:41,764 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:27:41,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:41,949 INFO L93 Difference]: Finished difference Result 29305 states and 77332 transitions. [2021-06-12 17:27:41,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:41,949 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:41,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:41,974 INFO L225 Difference]: With dead ends: 29305 [2021-06-12 17:27:41,974 INFO L226 Difference]: Without dead ends: 29305 [2021-06-12 17:27:41,974 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1105.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:42,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29305 states. [2021-06-12 17:27:42,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29305 to 10525. [2021-06-12 17:27:42,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10525 states, 10523 states have (on average 2.7132946878266653) internal successors, (28552), 10524 states have internal predecessors, (28552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:42,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10525 states to 10525 states and 28552 transitions. [2021-06-12 17:27:42,167 INFO L78 Accepts]: Start accepts. Automaton has 10525 states and 28552 transitions. Word has length 114 [2021-06-12 17:27:42,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:42,167 INFO L482 AbstractCegarLoop]: Abstraction has 10525 states and 28552 transitions. [2021-06-12 17:27:42,167 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:42,167 INFO L276 IsEmpty]: Start isEmpty. Operand 10525 states and 28552 transitions. [2021-06-12 17:27:42,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:42,176 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:42,176 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:42,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-06-12 17:27:42,176 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]=== [2021-06-12 17:27:42,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:42,176 INFO L82 PathProgramCache]: Analyzing trace with hash -347563056, now seen corresponding path program 68 times [2021-06-12 17:27:42,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:42,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069544553] [2021-06-12 17:27:42,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:42,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:42,484 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:42,484 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069544553] [2021-06-12 17:27:42,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069544553] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:42,484 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:42,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:42,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160847634] [2021-06-12 17:27:42,484 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:42,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:42,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:42,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:42,485 INFO L87 Difference]: Start difference. First operand 10525 states and 28552 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:43,421 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:43,587 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:43,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:43,750 INFO L93 Difference]: Finished difference Result 22954 states and 60717 transitions. [2021-06-12 17:27:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:43,750 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:43,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:43,769 INFO L225 Difference]: With dead ends: 22954 [2021-06-12 17:27:43,769 INFO L226 Difference]: Without dead ends: 22954 [2021-06-12 17:27:43,773 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1111.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:43,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22954 states. [2021-06-12 17:27:43,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22954 to 10469. [2021-06-12 17:27:43,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10469 states, 10467 states have (on average 2.712142925384542) internal successors, (28388), 10468 states have internal predecessors, (28388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:43,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10469 states to 10469 states and 28388 transitions. [2021-06-12 17:27:43,935 INFO L78 Accepts]: Start accepts. Automaton has 10469 states and 28388 transitions. Word has length 114 [2021-06-12 17:27:43,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:43,935 INFO L482 AbstractCegarLoop]: Abstraction has 10469 states and 28388 transitions. [2021-06-12 17:27:43,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:43,935 INFO L276 IsEmpty]: Start isEmpty. Operand 10469 states and 28388 transitions. [2021-06-12 17:27:43,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:43,944 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:43,944 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:43,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-06-12 17:27:43,944 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]=== [2021-06-12 17:27:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:43,944 INFO L82 PathProgramCache]: Analyzing trace with hash -374648050, now seen corresponding path program 69 times [2021-06-12 17:27:43,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:43,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223187679] [2021-06-12 17:27:43,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:44,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:44,262 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:44,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223187679] [2021-06-12 17:27:44,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223187679] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:44,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:44,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:44,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803136162] [2021-06-12 17:27:44,263 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:44,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:44,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:44,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:44,263 INFO L87 Difference]: Start difference. First operand 10469 states and 28388 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:45,200 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:45,363 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:45,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:45,536 INFO L93 Difference]: Finished difference Result 21721 states and 58092 transitions. [2021-06-12 17:27:45,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:45,536 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:45,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:45,554 INFO L225 Difference]: With dead ends: 21721 [2021-06-12 17:27:45,555 INFO L226 Difference]: Without dead ends: 21721 [2021-06-12 17:27:45,555 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1123.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:45,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21721 states. [2021-06-12 17:27:45,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21721 to 10525. [2021-06-12 17:27:45,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10525 states, 10523 states have (on average 2.7132946878266653) internal successors, (28552), 10524 states have internal predecessors, (28552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:45,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10525 states to 10525 states and 28552 transitions. [2021-06-12 17:27:45,712 INFO L78 Accepts]: Start accepts. Automaton has 10525 states and 28552 transitions. Word has length 114 [2021-06-12 17:27:45,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:45,712 INFO L482 AbstractCegarLoop]: Abstraction has 10525 states and 28552 transitions. [2021-06-12 17:27:45,713 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:45,713 INFO L276 IsEmpty]: Start isEmpty. Operand 10525 states and 28552 transitions. [2021-06-12 17:27:45,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:45,720 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:45,720 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:45,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-06-12 17:27:45,721 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]=== [2021-06-12 17:27:45,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:45,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1538588686, now seen corresponding path program 70 times [2021-06-12 17:27:45,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:45,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4471227] [2021-06-12 17:27:45,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:46,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:46,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:46,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4471227] [2021-06-12 17:27:46,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4471227] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:46,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:46,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:46,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581504791] [2021-06-12 17:27:46,039 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:46,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:46,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:46,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:46,040 INFO L87 Difference]: Start difference. First operand 10525 states and 28552 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:46,811 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:46,954 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:47,116 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:47,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:47,291 INFO L93 Difference]: Finished difference Result 21889 states and 58416 transitions. [2021-06-12 17:27:47,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:47,291 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:47,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:47,306 INFO L225 Difference]: With dead ends: 21889 [2021-06-12 17:27:47,306 INFO L226 Difference]: Without dead ends: 21889 [2021-06-12 17:27:47,306 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1132.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:47,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21889 states. [2021-06-12 17:27:47,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21889 to 10539. [2021-06-12 17:27:47,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10539 states, 10537 states have (on average 2.7135807155736926) internal successors, (28593), 10538 states have internal predecessors, (28593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:47,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10539 states to 10539 states and 28593 transitions. [2021-06-12 17:27:47,458 INFO L78 Accepts]: Start accepts. Automaton has 10539 states and 28593 transitions. Word has length 114 [2021-06-12 17:27:47,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:47,459 INFO L482 AbstractCegarLoop]: Abstraction has 10539 states and 28593 transitions. [2021-06-12 17:27:47,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:47,459 INFO L276 IsEmpty]: Start isEmpty. Operand 10539 states and 28593 transitions. [2021-06-12 17:27:47,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:47,466 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:47,466 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:47,466 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-06-12 17:27:47,467 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]=== [2021-06-12 17:27:47,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:47,467 INFO L82 PathProgramCache]: Analyzing trace with hash 450115500, now seen corresponding path program 71 times [2021-06-12 17:27:47,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:47,467 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389730130] [2021-06-12 17:27:47,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:47,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:47,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:47,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389730130] [2021-06-12 17:27:47,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389730130] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:47,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:47,760 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:47,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763364384] [2021-06-12 17:27:47,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:47,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:47,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:47,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:47,761 INFO L87 Difference]: Start difference. First operand 10539 states and 28593 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:48,544 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:48,701 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:27:48,862 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:27:49,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:49,043 INFO L93 Difference]: Finished difference Result 20743 states and 54702 transitions. [2021-06-12 17:27:49,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:49,043 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:49,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:49,057 INFO L225 Difference]: With dead ends: 20743 [2021-06-12 17:27:49,057 INFO L226 Difference]: Without dead ends: 20743 [2021-06-12 17:27:49,057 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1108.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:49,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20743 states. [2021-06-12 17:27:49,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20743 to 10357. [2021-06-12 17:27:49,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10357 states, 10355 states have (on average 2.7098020280057944) internal successors, (28060), 10356 states have internal predecessors, (28060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:49,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10357 states to 10357 states and 28060 transitions. [2021-06-12 17:27:49,202 INFO L78 Accepts]: Start accepts. Automaton has 10357 states and 28060 transitions. Word has length 114 [2021-06-12 17:27:49,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:49,202 INFO L482 AbstractCegarLoop]: Abstraction has 10357 states and 28060 transitions. [2021-06-12 17:27:49,202 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:49,202 INFO L276 IsEmpty]: Start isEmpty. Operand 10357 states and 28060 transitions. [2021-06-12 17:27:49,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:49,210 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:49,210 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:49,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-06-12 17:27:49,210 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]=== [2021-06-12 17:27:49,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:49,210 INFO L82 PathProgramCache]: Analyzing trace with hash -753465364, now seen corresponding path program 72 times [2021-06-12 17:27:49,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:49,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101270118] [2021-06-12 17:27:49,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:49,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:49,531 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:49,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101270118] [2021-06-12 17:27:49,531 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101270118] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:49,531 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:49,531 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:49,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679085848] [2021-06-12 17:27:49,531 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:49,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:49,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:49,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:49,531 INFO L87 Difference]: Start difference. First operand 10357 states and 28060 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:50,472 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:50,643 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:50,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:50,784 INFO L93 Difference]: Finished difference Result 20881 states and 55296 transitions. [2021-06-12 17:27:50,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:50,784 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:50,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:50,803 INFO L225 Difference]: With dead ends: 20881 [2021-06-12 17:27:50,803 INFO L226 Difference]: Without dead ends: 20881 [2021-06-12 17:27:50,803 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1129.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:50,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20881 states. [2021-06-12 17:27:50,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20881 to 10329. [2021-06-12 17:27:50,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10329 states, 10327 states have (on average 2.7092088699525516) internal successors, (27978), 10328 states have internal predecessors, (27978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:50,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10329 states to 10329 states and 27978 transitions. [2021-06-12 17:27:50,976 INFO L78 Accepts]: Start accepts. Automaton has 10329 states and 27978 transitions. Word has length 114 [2021-06-12 17:27:50,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:50,976 INFO L482 AbstractCegarLoop]: Abstraction has 10329 states and 27978 transitions. [2021-06-12 17:27:50,977 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:50,977 INFO L276 IsEmpty]: Start isEmpty. Operand 10329 states and 27978 transitions. [2021-06-12 17:27:50,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:50,984 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:50,985 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:50,985 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-06-12 17:27:50,985 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]=== [2021-06-12 17:27:50,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:50,985 INFO L82 PathProgramCache]: Analyzing trace with hash -413221006, now seen corresponding path program 73 times [2021-06-12 17:27:50,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:50,985 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9424574] [2021-06-12 17:27:50,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:51,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:51,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:51,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9424574] [2021-06-12 17:27:51,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9424574] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:51,287 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:51,287 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:51,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898488114] [2021-06-12 17:27:51,287 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:51,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:51,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:51,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:51,288 INFO L87 Difference]: Start difference. First operand 10329 states and 27978 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:52,196 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:52,360 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:52,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:52,483 INFO L93 Difference]: Finished difference Result 14275 states and 37776 transitions. [2021-06-12 17:27:52,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:52,484 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:52,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:52,497 INFO L225 Difference]: With dead ends: 14275 [2021-06-12 17:27:52,497 INFO L226 Difference]: Without dead ends: 14275 [2021-06-12 17:27:52,497 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1101.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:52,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14275 states. [2021-06-12 17:27:52,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14275 to 8647. [2021-06-12 17:27:52,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8647 states, 8645 states have (on average 2.6884904569115093) internal successors, (23242), 8646 states have internal predecessors, (23242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:52,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8647 states to 8647 states and 23242 transitions. [2021-06-12 17:27:52,636 INFO L78 Accepts]: Start accepts. Automaton has 8647 states and 23242 transitions. Word has length 114 [2021-06-12 17:27:52,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:52,636 INFO L482 AbstractCegarLoop]: Abstraction has 8647 states and 23242 transitions. [2021-06-12 17:27:52,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:52,637 INFO L276 IsEmpty]: Start isEmpty. Operand 8647 states and 23242 transitions. [2021-06-12 17:27:52,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:52,643 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:52,643 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:52,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-06-12 17:27:52,643 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]=== [2021-06-12 17:27:52,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:52,644 INFO L82 PathProgramCache]: Analyzing trace with hash -2052546514, now seen corresponding path program 74 times [2021-06-12 17:27:52,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:52,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445959111] [2021-06-12 17:27:52,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:52,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:52,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:52,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445959111] [2021-06-12 17:27:52,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445959111] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:52,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:52,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:52,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417713856] [2021-06-12 17:27:52,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:52,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:52,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:52,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:52,939 INFO L87 Difference]: Start difference. First operand 8647 states and 23242 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:53,878 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:54,044 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:54,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:54,208 INFO L93 Difference]: Finished difference Result 26892 states and 71356 transitions. [2021-06-12 17:27:54,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:54,209 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:54,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:54,233 INFO L225 Difference]: With dead ends: 26892 [2021-06-12 17:27:54,233 INFO L226 Difference]: Without dead ends: 26892 [2021-06-12 17:27:54,234 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1099.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:54,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26892 states. [2021-06-12 17:27:54,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26892 to 8805. [2021-06-12 17:27:54,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8805 states, 8803 states have (on average 2.6919232079972737) internal successors, (23697), 8804 states have internal predecessors, (23697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:54,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8805 states to 8805 states and 23697 transitions. [2021-06-12 17:27:54,440 INFO L78 Accepts]: Start accepts. Automaton has 8805 states and 23697 transitions. Word has length 114 [2021-06-12 17:27:54,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:54,440 INFO L482 AbstractCegarLoop]: Abstraction has 8805 states and 23697 transitions. [2021-06-12 17:27:54,440 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:54,440 INFO L276 IsEmpty]: Start isEmpty. Operand 8805 states and 23697 transitions. [2021-06-12 17:27:54,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:54,447 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:54,447 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:54,447 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-06-12 17:27:54,447 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]=== [2021-06-12 17:27:54,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:54,447 INFO L82 PathProgramCache]: Analyzing trace with hash -139309778, now seen corresponding path program 75 times [2021-06-12 17:27:54,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:54,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49357741] [2021-06-12 17:27:54,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:54,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:54,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:54,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49357741] [2021-06-12 17:27:54,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49357741] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:54,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:54,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:54,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774316938] [2021-06-12 17:27:54,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:54,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:54,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:54,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:54,750 INFO L87 Difference]: Start difference. First operand 8805 states and 23697 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:55,565 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:55,711 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:55,877 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:56,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:56,043 INFO L93 Difference]: Finished difference Result 29420 states and 77905 transitions. [2021-06-12 17:27:56,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:56,044 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:56,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:56,071 INFO L225 Difference]: With dead ends: 29420 [2021-06-12 17:27:56,071 INFO L226 Difference]: Without dead ends: 29420 [2021-06-12 17:27:56,071 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1136.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:56,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29420 states. [2021-06-12 17:27:56,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29420 to 8821. [2021-06-12 17:27:56,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8821 states, 8819 states have (on average 2.692255357750312) internal successors, (23743), 8820 states have internal predecessors, (23743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:56,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8821 states to 8821 states and 23743 transitions. [2021-06-12 17:27:56,288 INFO L78 Accepts]: Start accepts. Automaton has 8821 states and 23743 transitions. Word has length 114 [2021-06-12 17:27:56,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:56,288 INFO L482 AbstractCegarLoop]: Abstraction has 8821 states and 23743 transitions. [2021-06-12 17:27:56,288 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:56,288 INFO L276 IsEmpty]: Start isEmpty. Operand 8821 states and 23743 transitions. [2021-06-12 17:27:56,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:56,295 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:56,295 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:56,295 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-06-12 17:27:56,295 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]=== [2021-06-12 17:27:56,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:56,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1227782964, now seen corresponding path program 76 times [2021-06-12 17:27:56,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:56,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542523260] [2021-06-12 17:27:56,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:56,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:56,575 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:56,575 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542523260] [2021-06-12 17:27:56,575 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542523260] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:56,575 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:56,575 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:56,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607517913] [2021-06-12 17:27:56,575 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:56,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:56,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:56,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:56,575 INFO L87 Difference]: Start difference. First operand 8821 states and 23743 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:57,339 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:57,489 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:27:57,648 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:27:57,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:57,798 INFO L93 Difference]: Finished difference Result 27760 states and 73305 transitions. [2021-06-12 17:27:57,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:57,798 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:57,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:57,823 INFO L225 Difference]: With dead ends: 27760 [2021-06-12 17:27:57,823 INFO L226 Difference]: Without dead ends: 27760 [2021-06-12 17:27:57,824 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1097.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:57,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27760 states. [2021-06-12 17:27:58,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27760 to 8793. [2021-06-12 17:27:58,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8793 states, 8791 states have (on average 2.6894551245592084) internal successors, (23643), 8792 states have internal predecessors, (23643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:58,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8793 states to 8793 states and 23643 transitions. [2021-06-12 17:27:58,027 INFO L78 Accepts]: Start accepts. Automaton has 8793 states and 23643 transitions. Word has length 114 [2021-06-12 17:27:58,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:58,027 INFO L482 AbstractCegarLoop]: Abstraction has 8793 states and 23643 transitions. [2021-06-12 17:27:58,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:58,027 INFO L276 IsEmpty]: Start isEmpty. Operand 8793 states and 23643 transitions. [2021-06-12 17:27:58,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:58,033 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:58,033 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:58,033 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-06-12 17:27:58,033 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]=== [2021-06-12 17:27:58,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:58,034 INFO L82 PathProgramCache]: Analyzing trace with hash 182436846, now seen corresponding path program 77 times [2021-06-12 17:27:58,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:58,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822212228] [2021-06-12 17:27:58,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:27:58,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:27:58,319 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:27:58,319 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822212228] [2021-06-12 17:27:58,319 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822212228] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:27:58,319 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:27:58,319 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:27:58,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528072027] [2021-06-12 17:27:58,319 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:27:58,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:27:58,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:27:58,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:27:58,320 INFO L87 Difference]: Start difference. First operand 8793 states and 23643 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:59,109 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:27:59,253 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:27:59,415 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:27:59,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:27:59,579 INFO L93 Difference]: Finished difference Result 26998 states and 71522 transitions. [2021-06-12 17:27:59,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:27:59,580 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:27:59,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:27:59,605 INFO L225 Difference]: With dead ends: 26998 [2021-06-12 17:27:59,605 INFO L226 Difference]: Without dead ends: 26998 [2021-06-12 17:27:59,605 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1081.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:27:59,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26998 states. [2021-06-12 17:27:59,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26998 to 8825. [2021-06-12 17:27:59,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8825 states, 8823 states have (on average 2.6901280743511276) internal successors, (23735), 8824 states have internal predecessors, (23735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:59,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8825 states to 8825 states and 23735 transitions. [2021-06-12 17:27:59,807 INFO L78 Accepts]: Start accepts. Automaton has 8825 states and 23735 transitions. Word has length 114 [2021-06-12 17:27:59,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:27:59,808 INFO L482 AbstractCegarLoop]: Abstraction has 8825 states and 23735 transitions. [2021-06-12 17:27:59,808 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:27:59,808 INFO L276 IsEmpty]: Start isEmpty. Operand 8825 states and 23735 transitions. [2021-06-12 17:27:59,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:27:59,814 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:27:59,814 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:27:59,815 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-06-12 17:27:59,815 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]=== [2021-06-12 17:27:59,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:27:59,815 INFO L82 PathProgramCache]: Analyzing trace with hash -906036340, now seen corresponding path program 78 times [2021-06-12 17:27:59,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:27:59,815 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860754562] [2021-06-12 17:27:59,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:27:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:00,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:00,086 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:00,086 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860754562] [2021-06-12 17:28:00,086 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860754562] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:00,086 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:00,086 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:00,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807050875] [2021-06-12 17:28:00,086 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:00,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:00,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:00,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:00,087 INFO L87 Difference]: Start difference. First operand 8825 states and 23735 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:00,858 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:01,012 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:28:01,170 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:28:01,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:01,327 INFO L93 Difference]: Finished difference Result 27811 states and 73326 transitions. [2021-06-12 17:28:01,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:01,327 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:01,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:01,354 INFO L225 Difference]: With dead ends: 27811 [2021-06-12 17:28:01,354 INFO L226 Difference]: Without dead ends: 27811 [2021-06-12 17:28:01,354 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1104.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:01,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27811 states. [2021-06-12 17:28:01,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27811 to 8809. [2021-06-12 17:28:01,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8809 states, 8807 states have (on average 2.6897922107414556) internal successors, (23689), 8808 states have internal predecessors, (23689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:01,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8809 states to 8809 states and 23689 transitions. [2021-06-12 17:28:01,571 INFO L78 Accepts]: Start accepts. Automaton has 8809 states and 23689 transitions. Word has length 114 [2021-06-12 17:28:01,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:01,572 INFO L482 AbstractCegarLoop]: Abstraction has 8809 states and 23689 transitions. [2021-06-12 17:28:01,572 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:01,572 INFO L276 IsEmpty]: Start isEmpty. Operand 8809 states and 23689 transitions. [2021-06-12 17:28:01,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:01,579 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:01,579 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:01,579 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-06-12 17:28:01,579 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]=== [2021-06-12 17:28:01,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:01,579 INFO L82 PathProgramCache]: Analyzing trace with hash -108172880, now seen corresponding path program 79 times [2021-06-12 17:28:01,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:01,580 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152743778] [2021-06-12 17:28:01,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:01,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:01,889 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:01,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152743778] [2021-06-12 17:28:01,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152743778] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:01,889 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:01,889 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:01,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118113801] [2021-06-12 17:28:01,889 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:01,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:01,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:01,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:01,890 INFO L87 Difference]: Start difference. First operand 8809 states and 23689 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:02,662 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:02,813 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:28:02,973 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:28:03,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:03,121 INFO L93 Difference]: Finished difference Result 27137 states and 71739 transitions. [2021-06-12 17:28:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:03,122 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:03,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:03,147 INFO L225 Difference]: With dead ends: 27137 [2021-06-12 17:28:03,147 INFO L226 Difference]: Without dead ends: 27137 [2021-06-12 17:28:03,147 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1128.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:03,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27137 states. [2021-06-12 17:28:03,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27137 to 8825. [2021-06-12 17:28:03,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8825 states, 8823 states have (on average 2.6901280743511276) internal successors, (23735), 8824 states have internal predecessors, (23735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:03,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8825 states to 8825 states and 23735 transitions. [2021-06-12 17:28:03,350 INFO L78 Accepts]: Start accepts. Automaton has 8825 states and 23735 transitions. Word has length 114 [2021-06-12 17:28:03,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:03,350 INFO L482 AbstractCegarLoop]: Abstraction has 8825 states and 23735 transitions. [2021-06-12 17:28:03,350 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:03,350 INFO L276 IsEmpty]: Start isEmpty. Operand 8825 states and 23735 transitions. [2021-06-12 17:28:03,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:03,357 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:03,358 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:03,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-06-12 17:28:03,358 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]=== [2021-06-12 17:28:03,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:03,358 INFO L82 PathProgramCache]: Analyzing trace with hash -356719860, now seen corresponding path program 80 times [2021-06-12 17:28:03,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:03,358 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508522176] [2021-06-12 17:28:03,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:03,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:03,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:03,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508522176] [2021-06-12 17:28:03,621 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508522176] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:03,621 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:03,621 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:03,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611547363] [2021-06-12 17:28:03,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:03,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:03,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:03,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:03,621 INFO L87 Difference]: Start difference. First operand 8825 states and 23735 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:04,410 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:04,556 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:04,722 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:04,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:04,871 INFO L93 Difference]: Finished difference Result 24484 states and 64979 transitions. [2021-06-12 17:28:04,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:04,871 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:04,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:04,893 INFO L225 Difference]: With dead ends: 24484 [2021-06-12 17:28:04,893 INFO L226 Difference]: Without dead ends: 24484 [2021-06-12 17:28:04,893 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1092.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:04,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24484 states. [2021-06-12 17:28:05,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24484 to 8781. [2021-06-12 17:28:05,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8781 states, 8779 states have (on average 2.6883471921631164) internal successors, (23601), 8780 states have internal predecessors, (23601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:05,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8781 states to 8781 states and 23601 transitions. [2021-06-12 17:28:05,078 INFO L78 Accepts]: Start accepts. Automaton has 8781 states and 23601 transitions. Word has length 114 [2021-06-12 17:28:05,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:05,078 INFO L482 AbstractCegarLoop]: Abstraction has 8781 states and 23601 transitions. [2021-06-12 17:28:05,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:05,078 INFO L276 IsEmpty]: Start isEmpty. Operand 8781 states and 23601 transitions. [2021-06-12 17:28:05,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:05,085 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:05,085 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:05,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-06-12 17:28:05,085 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]=== [2021-06-12 17:28:05,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:05,085 INFO L82 PathProgramCache]: Analyzing trace with hash -2147224752, now seen corresponding path program 81 times [2021-06-12 17:28:05,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:05,085 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825048295] [2021-06-12 17:28:05,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:05,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:05,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:05,376 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825048295] [2021-06-12 17:28:05,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825048295] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:05,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:05,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:05,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241720815] [2021-06-12 17:28:05,377 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:05,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:05,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:05,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:05,377 INFO L87 Difference]: Start difference. First operand 8781 states and 23601 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:06,306 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:06,473 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:06,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:06,629 INFO L93 Difference]: Finished difference Result 25620 states and 68271 transitions. [2021-06-12 17:28:06,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:06,630 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:06,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:06,657 INFO L225 Difference]: With dead ends: 25620 [2021-06-12 17:28:06,658 INFO L226 Difference]: Without dead ends: 25620 [2021-06-12 17:28:06,658 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1108.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:06,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25620 states. [2021-06-12 17:28:06,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25620 to 8829. [2021-06-12 17:28:06,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8829 states, 8827 states have (on average 2.6893621842075452) internal successors, (23739), 8828 states have internal predecessors, (23739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:06,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 23739 transitions. [2021-06-12 17:28:06,853 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 23739 transitions. Word has length 114 [2021-06-12 17:28:06,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:06,854 INFO L482 AbstractCegarLoop]: Abstraction has 8829 states and 23739 transitions. [2021-06-12 17:28:06,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:06,854 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 23739 transitions. [2021-06-12 17:28:06,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:06,860 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:06,860 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:06,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-06-12 17:28:06,860 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]=== [2021-06-12 17:28:06,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:06,861 INFO L82 PathProgramCache]: Analyzing trace with hash -233988016, now seen corresponding path program 82 times [2021-06-12 17:28:06,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:06,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683613261] [2021-06-12 17:28:06,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:07,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:07,147 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:07,147 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683613261] [2021-06-12 17:28:07,147 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683613261] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:07,147 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:07,147 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:07,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896470816] [2021-06-12 17:28:07,147 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:07,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:07,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:07,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:07,148 INFO L87 Difference]: Start difference. First operand 8829 states and 23739 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:07,938 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:08,084 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:08,251 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:08,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:08,408 INFO L93 Difference]: Finished difference Result 25692 states and 68403 transitions. [2021-06-12 17:28:08,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:08,409 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:08,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:08,433 INFO L225 Difference]: With dead ends: 25692 [2021-06-12 17:28:08,434 INFO L226 Difference]: Without dead ends: 25692 [2021-06-12 17:28:08,434 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1116.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:08,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25692 states. [2021-06-12 17:28:08,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25692 to 8845. [2021-06-12 17:28:08,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 8843 states have (on average 2.6896980662671037) internal successors, (23785), 8844 states have internal predecessors, (23785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:08,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 23785 transitions. [2021-06-12 17:28:08,632 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 23785 transitions. Word has length 114 [2021-06-12 17:28:08,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:08,632 INFO L482 AbstractCegarLoop]: Abstraction has 8845 states and 23785 transitions. [2021-06-12 17:28:08,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:08,632 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 23785 transitions. [2021-06-12 17:28:08,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:08,639 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:08,639 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:08,639 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-06-12 17:28:08,639 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]=== [2021-06-12 17:28:08,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:08,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1322461202, now seen corresponding path program 83 times [2021-06-12 17:28:08,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:08,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520623733] [2021-06-12 17:28:08,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:08,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:08,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:08,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520623733] [2021-06-12 17:28:08,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520623733] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:08,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:08,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:08,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777723741] [2021-06-12 17:28:08,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:08,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:08,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:08,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:08,934 INFO L87 Difference]: Start difference. First operand 8845 states and 23785 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:09,709 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:09,863 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:28:10,022 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:28:10,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:10,172 INFO L93 Difference]: Finished difference Result 25102 states and 66481 transitions. [2021-06-12 17:28:10,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:10,173 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:10,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:10,197 INFO L225 Difference]: With dead ends: 25102 [2021-06-12 17:28:10,197 INFO L226 Difference]: Without dead ends: 25102 [2021-06-12 17:28:10,197 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1112.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:10,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25102 states. [2021-06-12 17:28:10,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25102 to 8797. [2021-06-12 17:28:10,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8797 states, 8795 states have (on average 2.6886867538374077) internal successors, (23647), 8796 states have internal predecessors, (23647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:10,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8797 states to 8797 states and 23647 transitions. [2021-06-12 17:28:10,411 INFO L78 Accepts]: Start accepts. Automaton has 8797 states and 23647 transitions. Word has length 114 [2021-06-12 17:28:10,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:10,411 INFO L482 AbstractCegarLoop]: Abstraction has 8797 states and 23647 transitions. [2021-06-12 17:28:10,411 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:10,411 INFO L276 IsEmpty]: Start isEmpty. Operand 8797 states and 23647 transitions. [2021-06-12 17:28:10,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:10,418 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:10,418 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:10,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-06-12 17:28:10,419 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]=== [2021-06-12 17:28:10,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:10,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1768925230, now seen corresponding path program 84 times [2021-06-12 17:28:10,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:10,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598810218] [2021-06-12 17:28:10,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:10,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:10,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:10,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598810218] [2021-06-12 17:28:10,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598810218] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:10,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:10,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:10,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357126283] [2021-06-12 17:28:10,748 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:10,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:10,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:10,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:10,749 INFO L87 Difference]: Start difference. First operand 8797 states and 23647 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:11,540 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-12 17:28:11,716 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:11,881 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:12,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:12,028 INFO L93 Difference]: Finished difference Result 21990 states and 58472 transitions. [2021-06-12 17:28:12,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:12,029 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:12,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:12,048 INFO L225 Difference]: With dead ends: 21990 [2021-06-12 17:28:12,048 INFO L226 Difference]: Without dead ends: 21990 [2021-06-12 17:28:12,048 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1130.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:12,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21990 states. [2021-06-12 17:28:12,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21990 to 8769. [2021-06-12 17:28:12,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8769 states, 8767 states have (on average 2.6879206113835976) internal successors, (23565), 8768 states have internal predecessors, (23565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:12,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8769 states to 8769 states and 23565 transitions. [2021-06-12 17:28:12,205 INFO L78 Accepts]: Start accepts. Automaton has 8769 states and 23565 transitions. Word has length 114 [2021-06-12 17:28:12,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:12,205 INFO L482 AbstractCegarLoop]: Abstraction has 8769 states and 23565 transitions. [2021-06-12 17:28:12,205 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:12,205 INFO L276 IsEmpty]: Start isEmpty. Operand 8769 states and 23565 transitions. [2021-06-12 17:28:12,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:12,212 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:12,212 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:12,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-06-12 17:28:12,212 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]=== [2021-06-12 17:28:12,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:12,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1214525874, now seen corresponding path program 85 times [2021-06-12 17:28:12,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:12,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375812695] [2021-06-12 17:28:12,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:12,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:12,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:12,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:12,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375812695] [2021-06-12 17:28:12,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375812695] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:12,552 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:12,552 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:12,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033519423] [2021-06-12 17:28:12,552 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:12,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:12,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:12,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:12,552 INFO L87 Difference]: Start difference. First operand 8769 states and 23565 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:13,492 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:13,657 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:13,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:13,805 INFO L93 Difference]: Finished difference Result 21763 states and 57831 transitions. [2021-06-12 17:28:13,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:13,805 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:13,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:13,824 INFO L225 Difference]: With dead ends: 21763 [2021-06-12 17:28:13,824 INFO L226 Difference]: Without dead ends: 21763 [2021-06-12 17:28:13,824 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1132.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:13,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21763 states. [2021-06-12 17:28:13,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21763 to 8897. [2021-06-12 17:28:13,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8897 states, 8895 states have (on average 2.6906127037661607) internal successors, (23933), 8896 states have internal predecessors, (23933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:13,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8897 states to 8897 states and 23933 transitions. [2021-06-12 17:28:13,973 INFO L78 Accepts]: Start accepts. Automaton has 8897 states and 23933 transitions. Word has length 114 [2021-06-12 17:28:13,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:13,973 INFO L482 AbstractCegarLoop]: Abstraction has 8897 states and 23933 transitions. [2021-06-12 17:28:13,973 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:13,973 INFO L276 IsEmpty]: Start isEmpty. Operand 8897 states and 23933 transitions. [2021-06-12 17:28:13,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:13,979 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:13,979 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:13,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-06-12 17:28:13,979 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]=== [2021-06-12 17:28:13,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:13,980 INFO L82 PathProgramCache]: Analyzing trace with hash 698710862, now seen corresponding path program 86 times [2021-06-12 17:28:13,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:13,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617167209] [2021-06-12 17:28:13,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:14,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:14,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:14,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617167209] [2021-06-12 17:28:14,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617167209] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:14,274 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:14,274 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:14,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457647417] [2021-06-12 17:28:14,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:14,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:14,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:14,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:14,275 INFO L87 Difference]: Start difference. First operand 8897 states and 23933 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:15,082 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:15,224 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:15,387 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:15,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:15,529 INFO L93 Difference]: Finished difference Result 24291 states and 64380 transitions. [2021-06-12 17:28:15,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:15,529 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:15,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:15,550 INFO L225 Difference]: With dead ends: 24291 [2021-06-12 17:28:15,550 INFO L226 Difference]: Without dead ends: 24291 [2021-06-12 17:28:15,550 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1136.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:15,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24291 states. [2021-06-12 17:28:15,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24291 to 8913. [2021-06-12 17:28:15,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8913 states, 8911 states have (on average 2.6909437773538323) internal successors, (23979), 8912 states have internal predecessors, (23979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:15,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8913 states to 8913 states and 23979 transitions. [2021-06-12 17:28:15,717 INFO L78 Accepts]: Start accepts. Automaton has 8913 states and 23979 transitions. Word has length 114 [2021-06-12 17:28:15,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:15,718 INFO L482 AbstractCegarLoop]: Abstraction has 8913 states and 23979 transitions. [2021-06-12 17:28:15,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:15,718 INFO L276 IsEmpty]: Start isEmpty. Operand 8913 states and 23979 transitions. [2021-06-12 17:28:15,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:15,724 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:15,724 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:15,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-06-12 17:28:15,724 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]=== [2021-06-12 17:28:15,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:15,725 INFO L82 PathProgramCache]: Analyzing trace with hash -389762324, now seen corresponding path program 87 times [2021-06-12 17:28:15,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:15,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749845856] [2021-06-12 17:28:15,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:15,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:15,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:16,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749845856] [2021-06-12 17:28:16,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749845856] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:16,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:16,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:16,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349865289] [2021-06-12 17:28:16,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:16,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:16,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:16,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:16,000 INFO L87 Difference]: Start difference. First operand 8913 states and 23979 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:16,790 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:16,965 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:28:17,127 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:28:17,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:17,276 INFO L93 Difference]: Finished difference Result 22631 states and 59780 transitions. [2021-06-12 17:28:17,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:17,276 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:17,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:17,295 INFO L225 Difference]: With dead ends: 22631 [2021-06-12 17:28:17,295 INFO L226 Difference]: Without dead ends: 22631 [2021-06-12 17:28:17,296 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1110.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:17,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22631 states. [2021-06-12 17:28:17,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22631 to 8865. [2021-06-12 17:28:17,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8865 states, 8863 states have (on average 2.689946970551732) internal successors, (23841), 8864 states have internal predecessors, (23841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:17,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8865 states to 8865 states and 23841 transitions. [2021-06-12 17:28:17,458 INFO L78 Accepts]: Start accepts. Automaton has 8865 states and 23841 transitions. Word has length 114 [2021-06-12 17:28:17,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:17,459 INFO L482 AbstractCegarLoop]: Abstraction has 8865 states and 23841 transitions. [2021-06-12 17:28:17,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:17,459 INFO L276 IsEmpty]: Start isEmpty. Operand 8865 states and 23841 transitions. [2021-06-12 17:28:17,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:17,465 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:17,465 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:17,466 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-06-12 17:28:17,466 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]=== [2021-06-12 17:28:17,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:17,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1020457486, now seen corresponding path program 88 times [2021-06-12 17:28:17,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:17,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754958843] [2021-06-12 17:28:17,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:17,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:17,735 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:17,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754958843] [2021-06-12 17:28:17,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754958843] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:17,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:17,735 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:17,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137598277] [2021-06-12 17:28:17,735 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:17,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:17,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:17,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:17,736 INFO L87 Difference]: Start difference. First operand 8865 states and 23841 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:18,500 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:18,643 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:18,804 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:18,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:18,956 INFO L93 Difference]: Finished difference Result 25621 states and 67559 transitions. [2021-06-12 17:28:18,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:18,957 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:18,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:18,981 INFO L225 Difference]: With dead ends: 25621 [2021-06-12 17:28:18,981 INFO L226 Difference]: Without dead ends: 25621 [2021-06-12 17:28:18,982 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1081.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:19,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25621 states. [2021-06-12 17:28:19,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25621 to 8897. [2021-06-12 17:28:19,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8897 states, 8895 states have (on average 2.6906127037661607) internal successors, (23933), 8896 states have internal predecessors, (23933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:19,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8897 states to 8897 states and 23933 transitions. [2021-06-12 17:28:19,192 INFO L78 Accepts]: Start accepts. Automaton has 8897 states and 23933 transitions. Word has length 114 [2021-06-12 17:28:19,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:19,193 INFO L482 AbstractCegarLoop]: Abstraction has 8897 states and 23933 transitions. [2021-06-12 17:28:19,193 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:19,193 INFO L276 IsEmpty]: Start isEmpty. Operand 8897 states and 23933 transitions. [2021-06-12 17:28:19,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:19,199 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:19,199 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:19,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-06-12 17:28:19,199 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]=== [2021-06-12 17:28:19,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:19,200 INFO L82 PathProgramCache]: Analyzing trace with hash -68015700, now seen corresponding path program 89 times [2021-06-12 17:28:19,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:19,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727586164] [2021-06-12 17:28:19,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:19,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:19,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:19,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727586164] [2021-06-12 17:28:19,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727586164] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:19,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:19,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:19,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614133426] [2021-06-12 17:28:19,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:19,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:19,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:19,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:19,462 INFO L87 Difference]: Start difference. First operand 8897 states and 23933 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:20,215 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:20,367 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:28:20,524 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:28:20,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:20,676 INFO L93 Difference]: Finished difference Result 26434 states and 69363 transitions. [2021-06-12 17:28:20,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:20,677 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:20,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:20,701 INFO L225 Difference]: With dead ends: 26434 [2021-06-12 17:28:20,701 INFO L226 Difference]: Without dead ends: 26434 [2021-06-12 17:28:20,701 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1074.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:20,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26434 states. [2021-06-12 17:28:20,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26434 to 8881. [2021-06-12 17:28:20,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8881 states, 8879 states have (on average 2.6902804369861473) internal successors, (23887), 8880 states have internal predecessors, (23887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:20,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8881 states to 8881 states and 23887 transitions. [2021-06-12 17:28:20,875 INFO L78 Accepts]: Start accepts. Automaton has 8881 states and 23887 transitions. Word has length 114 [2021-06-12 17:28:20,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:20,875 INFO L482 AbstractCegarLoop]: Abstraction has 8881 states and 23887 transitions. [2021-06-12 17:28:20,875 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:20,875 INFO L276 IsEmpty]: Start isEmpty. Operand 8881 states and 23887 transitions. [2021-06-12 17:28:20,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:20,882 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:20,882 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:20,882 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-06-12 17:28:20,882 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]=== [2021-06-12 17:28:20,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:20,882 INFO L82 PathProgramCache]: Analyzing trace with hash 729847760, now seen corresponding path program 90 times [2021-06-12 17:28:20,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:20,882 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060580684] [2021-06-12 17:28:20,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:21,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:21,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:21,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060580684] [2021-06-12 17:28:21,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060580684] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:21,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:21,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:21,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480583354] [2021-06-12 17:28:21,188 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:21,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:21,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:21,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:21,188 INFO L87 Difference]: Start difference. First operand 8881 states and 23887 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:21,946 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:22,095 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:28:22,254 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:28:22,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:22,405 INFO L93 Difference]: Finished difference Result 25760 states and 67776 transitions. [2021-06-12 17:28:22,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:22,406 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:22,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:22,432 INFO L225 Difference]: With dead ends: 25760 [2021-06-12 17:28:22,432 INFO L226 Difference]: Without dead ends: 25760 [2021-06-12 17:28:22,432 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1118.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:22,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25760 states. [2021-06-12 17:28:22,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25760 to 8897. [2021-06-12 17:28:22,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8897 states, 8895 states have (on average 2.6906127037661607) internal successors, (23933), 8896 states have internal predecessors, (23933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:22,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8897 states to 8897 states and 23933 transitions. [2021-06-12 17:28:22,611 INFO L78 Accepts]: Start accepts. Automaton has 8897 states and 23933 transitions. Word has length 114 [2021-06-12 17:28:22,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:22,611 INFO L482 AbstractCegarLoop]: Abstraction has 8897 states and 23933 transitions. [2021-06-12 17:28:22,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:22,611 INFO L276 IsEmpty]: Start isEmpty. Operand 8897 states and 23933 transitions. [2021-06-12 17:28:22,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:22,618 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:22,618 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:22,618 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-06-12 17:28:22,618 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]=== [2021-06-12 17:28:22,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:22,618 INFO L82 PathProgramCache]: Analyzing trace with hash 481300780, now seen corresponding path program 91 times [2021-06-12 17:28:22,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:22,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935333158] [2021-06-12 17:28:22,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:22,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:22,876 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:22,876 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935333158] [2021-06-12 17:28:22,876 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935333158] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:22,876 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:22,876 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:22,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770188080] [2021-06-12 17:28:22,876 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:22,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:22,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:22,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:22,876 INFO L87 Difference]: Start difference. First operand 8897 states and 23933 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:23,655 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:23,796 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:23,956 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:24,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:24,080 INFO L93 Difference]: Finished difference Result 22825 states and 60302 transitions. [2021-06-12 17:28:24,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:24,080 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:24,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:24,099 INFO L225 Difference]: With dead ends: 22825 [2021-06-12 17:28:24,099 INFO L226 Difference]: Without dead ends: 22825 [2021-06-12 17:28:24,100 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1065.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:24,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22825 states. [2021-06-12 17:28:24,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22825 to 8833. [2021-06-12 17:28:24,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8833 states, 8831 states have (on average 2.6892764126373003) internal successors, (23749), 8832 states have internal predecessors, (23749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:24,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8833 states to 8833 states and 23749 transitions. [2021-06-12 17:28:24,253 INFO L78 Accepts]: Start accepts. Automaton has 8833 states and 23749 transitions. Word has length 114 [2021-06-12 17:28:24,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:24,253 INFO L482 AbstractCegarLoop]: Abstraction has 8833 states and 23749 transitions. [2021-06-12 17:28:24,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:24,253 INFO L276 IsEmpty]: Start isEmpty. Operand 8833 states and 23749 transitions. [2021-06-12 17:28:24,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:24,259 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:24,259 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:24,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-06-12 17:28:24,259 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]=== [2021-06-12 17:28:24,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:24,260 INFO L82 PathProgramCache]: Analyzing trace with hash 885255312, now seen corresponding path program 92 times [2021-06-12 17:28:24,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:24,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078227125] [2021-06-12 17:28:24,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:24,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:24,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:24,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078227125] [2021-06-12 17:28:24,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078227125] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:24,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:24,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:24,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467728141] [2021-06-12 17:28:24,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:24,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:24,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:24,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:24,522 INFO L87 Difference]: Start difference. First operand 8833 states and 23749 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:25,305 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:25,475 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:25,637 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:25,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:25,776 INFO L93 Difference]: Finished difference Result 21341 states and 56641 transitions. [2021-06-12 17:28:25,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:25,776 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:25,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:25,793 INFO L225 Difference]: With dead ends: 21341 [2021-06-12 17:28:25,794 INFO L226 Difference]: Without dead ends: 21341 [2021-06-12 17:28:25,794 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1098.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:25,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21341 states. [2021-06-12 17:28:25,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21341 to 8897. [2021-06-12 17:28:25,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8897 states, 8895 states have (on average 2.6906127037661607) internal successors, (23933), 8896 states have internal predecessors, (23933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:25,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8897 states to 8897 states and 23933 transitions. [2021-06-12 17:28:25,943 INFO L78 Accepts]: Start accepts. Automaton has 8897 states and 23933 transitions. Word has length 114 [2021-06-12 17:28:25,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:25,944 INFO L482 AbstractCegarLoop]: Abstraction has 8897 states and 23933 transitions. [2021-06-12 17:28:25,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:25,944 INFO L276 IsEmpty]: Start isEmpty. Operand 8897 states and 23933 transitions. [2021-06-12 17:28:25,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:25,950 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:25,950 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:25,950 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-06-12 17:28:25,950 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]=== [2021-06-12 17:28:25,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:25,951 INFO L82 PathProgramCache]: Analyzing trace with hash -203217874, now seen corresponding path program 93 times [2021-06-12 17:28:25,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:25,951 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891642592] [2021-06-12 17:28:25,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:26,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:26,213 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:26,213 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891642592] [2021-06-12 17:28:26,213 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891642592] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:26,213 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:26,213 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:26,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882463876] [2021-06-12 17:28:26,213 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:26,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:26,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:26,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:26,214 INFO L87 Difference]: Start difference. First operand 8897 states and 23933 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:26,969 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:27,120 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:28:27,275 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:28:27,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:27,408 INFO L93 Difference]: Finished difference Result 22154 states and 58445 transitions. [2021-06-12 17:28:27,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:27,408 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:27,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:27,427 INFO L225 Difference]: With dead ends: 22154 [2021-06-12 17:28:27,427 INFO L226 Difference]: Without dead ends: 22154 [2021-06-12 17:28:27,428 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1076.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:27,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22154 states. [2021-06-12 17:28:27,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22154 to 8881. [2021-06-12 17:28:27,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8881 states, 8879 states have (on average 2.6902804369861473) internal successors, (23887), 8880 states have internal predecessors, (23887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8881 states to 8881 states and 23887 transitions. [2021-06-12 17:28:27,605 INFO L78 Accepts]: Start accepts. Automaton has 8881 states and 23887 transitions. Word has length 114 [2021-06-12 17:28:27,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:27,605 INFO L482 AbstractCegarLoop]: Abstraction has 8881 states and 23887 transitions. [2021-06-12 17:28:27,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:27,605 INFO L276 IsEmpty]: Start isEmpty. Operand 8881 states and 23887 transitions. [2021-06-12 17:28:27,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:27,611 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:27,611 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:27,611 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-06-12 17:28:27,611 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]=== [2021-06-12 17:28:27,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:27,612 INFO L82 PathProgramCache]: Analyzing trace with hash 594645586, now seen corresponding path program 94 times [2021-06-12 17:28:27,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:27,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984246699] [2021-06-12 17:28:27,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:27,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:27,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:27,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984246699] [2021-06-12 17:28:27,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984246699] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:27,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:27,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:27,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430793831] [2021-06-12 17:28:27,898 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:27,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:27,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:27,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:27,898 INFO L87 Difference]: Start difference. First operand 8881 states and 23887 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:28,678 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:28,830 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:28:28,991 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:28:29,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:29,154 INFO L93 Difference]: Finished difference Result 25267 states and 66395 transitions. [2021-06-12 17:28:29,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:29,154 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:29,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:29,177 INFO L225 Difference]: With dead ends: 25267 [2021-06-12 17:28:29,177 INFO L226 Difference]: Without dead ends: 25267 [2021-06-12 17:28:29,177 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1099.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:29,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25267 states. [2021-06-12 17:28:29,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25267 to 8897. [2021-06-12 17:28:29,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8897 states, 8895 states have (on average 2.6906127037661607) internal successors, (23933), 8896 states have internal predecessors, (23933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:29,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8897 states to 8897 states and 23933 transitions. [2021-06-12 17:28:29,351 INFO L78 Accepts]: Start accepts. Automaton has 8897 states and 23933 transitions. Word has length 114 [2021-06-12 17:28:29,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:29,351 INFO L482 AbstractCegarLoop]: Abstraction has 8897 states and 23933 transitions. [2021-06-12 17:28:29,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:29,351 INFO L276 IsEmpty]: Start isEmpty. Operand 8897 states and 23933 transitions. [2021-06-12 17:28:29,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:29,358 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:29,358 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:29,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-06-12 17:28:29,358 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]=== [2021-06-12 17:28:29,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:29,358 INFO L82 PathProgramCache]: Analyzing trace with hash 346098606, now seen corresponding path program 95 times [2021-06-12 17:28:29,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:29,358 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159919230] [2021-06-12 17:28:29,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:29,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:29,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:29,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159919230] [2021-06-12 17:28:29,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159919230] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:29,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:29,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:29,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309894010] [2021-06-12 17:28:29,657 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:29,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:29,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:29,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:29,658 INFO L87 Difference]: Start difference. First operand 8897 states and 23933 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:30,434 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:30,577 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:30,739 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:30,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:30,873 INFO L93 Difference]: Finished difference Result 22332 states and 58921 transitions. [2021-06-12 17:28:30,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:30,873 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:30,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:30,892 INFO L225 Difference]: With dead ends: 22332 [2021-06-12 17:28:30,892 INFO L226 Difference]: Without dead ends: 22332 [2021-06-12 17:28:30,892 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1111.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:30,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22332 states. [2021-06-12 17:28:31,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22332 to 8865. [2021-06-12 17:28:31,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8865 states, 8863 states have (on average 2.689946970551732) internal successors, (23841), 8864 states have internal predecessors, (23841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:31,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8865 states to 8865 states and 23841 transitions. [2021-06-12 17:28:31,044 INFO L78 Accepts]: Start accepts. Automaton has 8865 states and 23841 transitions. Word has length 114 [2021-06-12 17:28:31,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:31,044 INFO L482 AbstractCegarLoop]: Abstraction has 8865 states and 23841 transitions. [2021-06-12 17:28:31,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:31,044 INFO L276 IsEmpty]: Start isEmpty. Operand 8865 states and 23841 transitions. [2021-06-12 17:28:31,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:31,050 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:31,050 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:31,050 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-06-12 17:28:31,050 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]=== [2021-06-12 17:28:31,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:31,051 INFO L82 PathProgramCache]: Analyzing trace with hash -674171700, now seen corresponding path program 96 times [2021-06-12 17:28:31,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:31,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561854345] [2021-06-12 17:28:31,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:31,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:31,322 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:31,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561854345] [2021-06-12 17:28:31,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561854345] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:31,322 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:31,322 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:31,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164805132] [2021-06-12 17:28:31,323 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:31,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:31,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:31,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:31,323 INFO L87 Difference]: Start difference. First operand 8865 states and 23841 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:32,134 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:32,288 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:28:32,451 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:28:32,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:32,592 INFO L93 Difference]: Finished difference Result 21464 states and 56812 transitions. [2021-06-12 17:28:32,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:32,594 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:32,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:32,613 INFO L225 Difference]: With dead ends: 21464 [2021-06-12 17:28:32,613 INFO L226 Difference]: Without dead ends: 21464 [2021-06-12 17:28:32,613 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1118.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:32,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21464 states. [2021-06-12 17:28:32,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21464 to 8913. [2021-06-12 17:28:32,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8913 states, 8911 states have (on average 2.6909437773538323) internal successors, (23979), 8912 states have internal predecessors, (23979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:32,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8913 states to 8913 states and 23979 transitions. [2021-06-12 17:28:32,767 INFO L78 Accepts]: Start accepts. Automaton has 8913 states and 23979 transitions. Word has length 114 [2021-06-12 17:28:32,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:32,767 INFO L482 AbstractCegarLoop]: Abstraction has 8913 states and 23979 transitions. [2021-06-12 17:28:32,767 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:32,767 INFO L276 IsEmpty]: Start isEmpty. Operand 8913 states and 23979 transitions. [2021-06-12 17:28:32,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:32,774 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:32,774 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:32,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-06-12 17:28:32,774 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]=== [2021-06-12 17:28:32,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:32,774 INFO L82 PathProgramCache]: Analyzing trace with hash -922718680, now seen corresponding path program 97 times [2021-06-12 17:28:32,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:32,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151509083] [2021-06-12 17:28:32,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:33,042 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:33,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151509083] [2021-06-12 17:28:33,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151509083] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:33,042 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:33,042 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:33,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638890525] [2021-06-12 17:28:33,043 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:33,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:33,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:33,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:33,043 INFO L87 Difference]: Start difference. First operand 8913 states and 23979 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:33,811 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:33,955 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:34,140 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:34,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:34,264 INFO L93 Difference]: Finished difference Result 21304 states and 56410 transitions. [2021-06-12 17:28:34,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:34,264 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:34,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:34,282 INFO L225 Difference]: With dead ends: 21304 [2021-06-12 17:28:34,282 INFO L226 Difference]: Without dead ends: 21304 [2021-06-12 17:28:34,282 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1110.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:34,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21304 states. [2021-06-12 17:28:34,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21304 to 8897. [2021-06-12 17:28:34,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8897 states, 8895 states have (on average 2.6906127037661607) internal successors, (23933), 8896 states have internal predecessors, (23933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:34,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8897 states to 8897 states and 23933 transitions. [2021-06-12 17:28:34,432 INFO L78 Accepts]: Start accepts. Automaton has 8897 states and 23933 transitions. Word has length 114 [2021-06-12 17:28:34,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:34,432 INFO L482 AbstractCegarLoop]: Abstraction has 8897 states and 23933 transitions. [2021-06-12 17:28:34,432 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:34,432 INFO L276 IsEmpty]: Start isEmpty. Operand 8897 states and 23933 transitions. [2021-06-12 17:28:34,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:34,439 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:34,439 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:34,439 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-06-12 17:28:34,439 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]=== [2021-06-12 17:28:34,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:34,439 INFO L82 PathProgramCache]: Analyzing trace with hash -2079535984, now seen corresponding path program 98 times [2021-06-12 17:28:34,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:34,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689867169] [2021-06-12 17:28:34,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:34,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:34,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:34,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689867169] [2021-06-12 17:28:34,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689867169] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:34,714 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:34,714 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:34,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823034537] [2021-06-12 17:28:34,714 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:34,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:34,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:34,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:34,715 INFO L87 Difference]: Start difference. First operand 8897 states and 23933 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:35,466 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-12 17:28:35,621 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:35,784 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:35,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:35,913 INFO L93 Difference]: Finished difference Result 18737 states and 49864 transitions. [2021-06-12 17:28:35,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:35,913 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:35,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:35,930 INFO L225 Difference]: With dead ends: 18737 [2021-06-12 17:28:35,930 INFO L226 Difference]: Without dead ends: 18737 [2021-06-12 17:28:35,930 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1088.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:35,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18737 states. [2021-06-12 17:28:36,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18737 to 8781. [2021-06-12 17:28:36,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8781 states, 8779 states have (on average 2.6862968447431372) internal successors, (23583), 8780 states have internal predecessors, (23583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:36,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8781 states to 8781 states and 23583 transitions. [2021-06-12 17:28:36,061 INFO L78 Accepts]: Start accepts. Automaton has 8781 states and 23583 transitions. Word has length 114 [2021-06-12 17:28:36,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:36,061 INFO L482 AbstractCegarLoop]: Abstraction has 8781 states and 23583 transitions. [2021-06-12 17:28:36,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:36,062 INFO L276 IsEmpty]: Start isEmpty. Operand 8781 states and 23583 transitions. [2021-06-12 17:28:36,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:36,103 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:36,103 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:36,103 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-06-12 17:28:36,103 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]=== [2021-06-12 17:28:36,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:36,103 INFO L82 PathProgramCache]: Analyzing trace with hash 110017232, now seen corresponding path program 99 times [2021-06-12 17:28:36,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:36,103 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774551409] [2021-06-12 17:28:36,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:36,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:36,375 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:36,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774551409] [2021-06-12 17:28:36,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774551409] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:36,375 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:36,375 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:36,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932933910] [2021-06-12 17:28:36,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:36,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:36,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:36,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:36,376 INFO L87 Difference]: Start difference. First operand 8781 states and 23583 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:37,288 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:37,452 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:37,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:37,602 INFO L93 Difference]: Finished difference Result 21429 states and 56945 transitions. [2021-06-12 17:28:37,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:37,602 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:37,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:37,621 INFO L225 Difference]: With dead ends: 21429 [2021-06-12 17:28:37,621 INFO L226 Difference]: Without dead ends: 21429 [2021-06-12 17:28:37,621 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1086.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:37,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21429 states. [2021-06-12 17:28:37,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21429 to 8877. [2021-06-12 17:28:37,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:37,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-12 17:28:37,778 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-12 17:28:37,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:37,778 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-12 17:28:37,778 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:37,779 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-12 17:28:37,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:37,785 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:37,785 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:37,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-06-12 17:28:37,785 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]=== [2021-06-12 17:28:37,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:37,785 INFO L82 PathProgramCache]: Analyzing trace with hash 2023253968, now seen corresponding path program 100 times [2021-06-12 17:28:37,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:37,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842469906] [2021-06-12 17:28:37,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:38,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:38,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:38,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842469906] [2021-06-12 17:28:38,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842469906] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:38,058 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:38,058 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:38,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432754292] [2021-06-12 17:28:38,058 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:38,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:38,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:38,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:38,058 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:38,866 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:39,011 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:39,177 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:39,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:39,333 INFO L93 Difference]: Finished difference Result 23957 states and 63494 transitions. [2021-06-12 17:28:39,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:39,333 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:39,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:39,353 INFO L225 Difference]: With dead ends: 23957 [2021-06-12 17:28:39,353 INFO L226 Difference]: Without dead ends: 23957 [2021-06-12 17:28:39,354 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1110.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:39,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23957 states. [2021-06-12 17:28:39,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23957 to 8893. [2021-06-12 17:28:39,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8893 states, 8891 states have (on average 2.6886739399392643) internal successors, (23905), 8892 states have internal predecessors, (23905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:39,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 23905 transitions. [2021-06-12 17:28:39,525 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 23905 transitions. Word has length 114 [2021-06-12 17:28:39,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:39,526 INFO L482 AbstractCegarLoop]: Abstraction has 8893 states and 23905 transitions. [2021-06-12 17:28:39,526 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:39,526 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 23905 transitions. [2021-06-12 17:28:39,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:39,532 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:39,532 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:39,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-06-12 17:28:39,532 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]=== [2021-06-12 17:28:39,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:39,533 INFO L82 PathProgramCache]: Analyzing trace with hash 934780782, now seen corresponding path program 101 times [2021-06-12 17:28:39,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:39,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930272764] [2021-06-12 17:28:39,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:39,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:39,816 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:39,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930272764] [2021-06-12 17:28:39,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930272764] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:39,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:39,816 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:39,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103416952] [2021-06-12 17:28:39,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:39,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:39,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:39,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:39,817 INFO L87 Difference]: Start difference. First operand 8893 states and 23905 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:40,606 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:40,760 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:28:40,918 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:28:41,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:41,058 INFO L93 Difference]: Finished difference Result 22297 states and 58894 transitions. [2021-06-12 17:28:41,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:41,058 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:41,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:41,078 INFO L225 Difference]: With dead ends: 22297 [2021-06-12 17:28:41,078 INFO L226 Difference]: Without dead ends: 22297 [2021-06-12 17:28:41,078 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1127.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:41,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22297 states. [2021-06-12 17:28:41,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22297 to 8845. [2021-06-12 17:28:41,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 8843 states have (on average 2.687662557955445) internal successors, (23767), 8844 states have internal predecessors, (23767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:41,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 23767 transitions. [2021-06-12 17:28:41,235 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 23767 transitions. Word has length 114 [2021-06-12 17:28:41,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:41,235 INFO L482 AbstractCegarLoop]: Abstraction has 8845 states and 23767 transitions. [2021-06-12 17:28:41,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:41,235 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 23767 transitions. [2021-06-12 17:28:41,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:41,242 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:41,242 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:41,242 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-06-12 17:28:41,242 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]=== [2021-06-12 17:28:41,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:41,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1949966704, now seen corresponding path program 102 times [2021-06-12 17:28:41,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:41,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243373222] [2021-06-12 17:28:41,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:41,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:41,500 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:41,500 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243373222] [2021-06-12 17:28:41,500 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243373222] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:41,500 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:41,500 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:41,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031080629] [2021-06-12 17:28:41,500 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:41,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:41,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:41,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:41,501 INFO L87 Difference]: Start difference. First operand 8845 states and 23767 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:42,291 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:42,437 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:42,600 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:42,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:42,776 INFO L93 Difference]: Finished difference Result 21535 states and 57111 transitions. [2021-06-12 17:28:42,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:42,776 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:42,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:42,790 INFO L225 Difference]: With dead ends: 21535 [2021-06-12 17:28:42,790 INFO L226 Difference]: Without dead ends: 21535 [2021-06-12 17:28:42,790 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1109.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:42,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21535 states. [2021-06-12 17:28:42,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21535 to 8877. [2021-06-12 17:28:42,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:42,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-12 17:28:42,923 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-12 17:28:42,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:42,923 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-12 17:28:42,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:42,923 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-12 17:28:42,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:42,929 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:42,930 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:42,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-06-12 17:28:42,930 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]=== [2021-06-12 17:28:42,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:42,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1256527406, now seen corresponding path program 103 times [2021-06-12 17:28:42,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:42,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878865284] [2021-06-12 17:28:42,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:43,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:43,194 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:43,194 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878865284] [2021-06-12 17:28:43,194 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878865284] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:43,194 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:43,194 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:43,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135519601] [2021-06-12 17:28:43,194 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:43,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:43,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:43,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:43,195 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:43,951 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:44,103 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:28:44,255 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:28:44,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:44,394 INFO L93 Difference]: Finished difference Result 22348 states and 58915 transitions. [2021-06-12 17:28:44,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:44,395 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:44,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:44,415 INFO L225 Difference]: With dead ends: 22348 [2021-06-12 17:28:44,415 INFO L226 Difference]: Without dead ends: 22348 [2021-06-12 17:28:44,415 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1082.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:44,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22348 states. [2021-06-12 17:28:44,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22348 to 8861. [2021-06-12 17:28:44,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:44,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-06-12 17:28:44,576 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-06-12 17:28:44,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:44,576 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-06-12 17:28:44,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:44,576 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-06-12 17:28:44,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:44,583 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:44,583 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:44,583 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-06-12 17:28:44,583 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]=== [2021-06-12 17:28:44,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:44,583 INFO L82 PathProgramCache]: Analyzing trace with hash 2054390866, now seen corresponding path program 104 times [2021-06-12 17:28:44,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:44,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541480796] [2021-06-12 17:28:44,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:44,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:44,882 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:44,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541480796] [2021-06-12 17:28:44,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541480796] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:44,882 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:44,882 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:44,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034041200] [2021-06-12 17:28:44,882 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:44,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:44,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:44,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:44,883 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:45,658 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:45,813 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:28:45,973 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:28:46,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:46,122 INFO L93 Difference]: Finished difference Result 21674 states and 57328 transitions. [2021-06-12 17:28:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:46,122 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:46,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:46,141 INFO L225 Difference]: With dead ends: 21674 [2021-06-12 17:28:46,141 INFO L226 Difference]: Without dead ends: 21674 [2021-06-12 17:28:46,141 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1082.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:46,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21674 states. [2021-06-12 17:28:46,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21674 to 8877. [2021-06-12 17:28:46,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:46,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-12 17:28:46,290 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-12 17:28:46,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:46,290 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-12 17:28:46,290 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:46,290 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-12 17:28:46,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:46,297 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:46,297 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:46,297 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-06-12 17:28:46,297 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]=== [2021-06-12 17:28:46,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:46,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1805843886, now seen corresponding path program 105 times [2021-06-12 17:28:46,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:46,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016793725] [2021-06-12 17:28:46,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:46,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:46,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:46,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016793725] [2021-06-12 17:28:46,554 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016793725] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:46,554 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:46,554 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:46,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055946292] [2021-06-12 17:28:46,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:46,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:46,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:46,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:46,555 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:47,328 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:47,470 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:47,629 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:47,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:47,764 INFO L93 Difference]: Finished difference Result 19021 states and 50568 transitions. [2021-06-12 17:28:47,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:47,764 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:47,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:47,783 INFO L225 Difference]: With dead ends: 19021 [2021-06-12 17:28:47,783 INFO L226 Difference]: Without dead ends: 19021 [2021-06-12 17:28:47,783 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1087.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:47,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19021 states. [2021-06-12 17:28:47,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19021 to 8813. [2021-06-12 17:28:47,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8813 states, 8811 states have (on average 2.6869821813642036) internal successors, (23675), 8812 states have internal predecessors, (23675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:47,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8813 states to 8813 states and 23675 transitions. [2021-06-12 17:28:47,927 INFO L78 Accepts]: Start accepts. Automaton has 8813 states and 23675 transitions. Word has length 114 [2021-06-12 17:28:47,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:47,927 INFO L482 AbstractCegarLoop]: Abstraction has 8813 states and 23675 transitions. [2021-06-12 17:28:47,927 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:47,927 INFO L276 IsEmpty]: Start isEmpty. Operand 8813 states and 23675 transitions. [2021-06-12 17:28:47,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:47,933 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:47,933 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:47,933 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-06-12 17:28:47,933 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]=== [2021-06-12 17:28:47,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:47,934 INFO L82 PathProgramCache]: Analyzing trace with hash 15338994, now seen corresponding path program 106 times [2021-06-12 17:28:47,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:47,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852128500] [2021-06-12 17:28:47,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:48,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:48,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:48,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852128500] [2021-06-12 17:28:48,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852128500] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:48,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:48,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:48,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668690473] [2021-06-12 17:28:48,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:48,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:48,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:48,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:48,236 INFO L87 Difference]: Start difference. First operand 8813 states and 23675 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:49,218 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:49,384 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:49,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:49,547 INFO L93 Difference]: Finished difference Result 24234 states and 64317 transitions. [2021-06-12 17:28:49,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:49,548 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:49,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:49,569 INFO L225 Difference]: With dead ends: 24234 [2021-06-12 17:28:49,569 INFO L226 Difference]: Without dead ends: 24234 [2021-06-12 17:28:49,570 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1135.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:49,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24234 states. [2021-06-12 17:28:49,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24234 to 8861. [2021-06-12 17:28:49,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:49,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-06-12 17:28:49,734 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-06-12 17:28:49,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:49,734 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-06-12 17:28:49,734 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:49,734 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-06-12 17:28:49,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:49,741 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:49,741 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:49,741 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-06-12 17:28:49,741 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]=== [2021-06-12 17:28:49,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:49,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1928575730, now seen corresponding path program 107 times [2021-06-12 17:28:49,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:49,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917819440] [2021-06-12 17:28:49,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:50,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:50,024 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:50,024 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917819440] [2021-06-12 17:28:50,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917819440] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:50,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:50,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:50,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279973374] [2021-06-12 17:28:50,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:50,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:50,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:50,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:50,024 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:50,821 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:50,971 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:51,136 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:51,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:51,300 INFO L93 Difference]: Finished difference Result 24306 states and 64449 transitions. [2021-06-12 17:28:51,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:51,300 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:51,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:51,321 INFO L225 Difference]: With dead ends: 24306 [2021-06-12 17:28:51,322 INFO L226 Difference]: Without dead ends: 24306 [2021-06-12 17:28:51,322 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1102.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:51,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24306 states. [2021-06-12 17:28:51,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24306 to 8877. [2021-06-12 17:28:51,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:51,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-12 17:28:51,502 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-12 17:28:51,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:51,502 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-12 17:28:51,502 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:51,502 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-12 17:28:51,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:51,509 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:51,509 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:51,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-06-12 17:28:51,509 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]=== [2021-06-12 17:28:51,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:51,509 INFO L82 PathProgramCache]: Analyzing trace with hash 840102544, now seen corresponding path program 108 times [2021-06-12 17:28:51,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:51,509 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908995050] [2021-06-12 17:28:51,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:51,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:51,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:51,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908995050] [2021-06-12 17:28:51,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908995050] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:51,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:51,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:51,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654994485] [2021-06-12 17:28:51,797 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:51,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:51,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:51,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:51,797 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:52,572 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:52,728 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:28:52,887 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:28:53,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:53,037 INFO L93 Difference]: Finished difference Result 23716 states and 62527 transitions. [2021-06-12 17:28:53,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:53,037 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:53,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:53,057 INFO L225 Difference]: With dead ends: 23716 [2021-06-12 17:28:53,057 INFO L226 Difference]: Without dead ends: 23716 [2021-06-12 17:28:53,057 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1111.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:53,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23716 states. [2021-06-12 17:28:53,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23716 to 8829. [2021-06-12 17:28:53,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8829 states, 8827 states have (on average 2.6873229862920582) internal successors, (23721), 8828 states have internal predecessors, (23721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:53,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 23721 transitions. [2021-06-12 17:28:53,218 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 23721 transitions. Word has length 114 [2021-06-12 17:28:53,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:53,218 INFO L482 AbstractCegarLoop]: Abstraction has 8829 states and 23721 transitions. [2021-06-12 17:28:53,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:53,218 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 23721 transitions. [2021-06-12 17:28:53,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:53,224 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:53,224 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:53,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-06-12 17:28:53,225 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]=== [2021-06-12 17:28:53,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:53,225 INFO L82 PathProgramCache]: Analyzing trace with hash -363478320, now seen corresponding path program 109 times [2021-06-12 17:28:53,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:53,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767467869] [2021-06-12 17:28:53,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:53,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:53,560 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:53,560 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767467869] [2021-06-12 17:28:53,560 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767467869] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:53,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:53,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:53,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668262375] [2021-06-12 17:28:53,561 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:53,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:53,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:53,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:53,561 INFO L87 Difference]: Start difference. First operand 8829 states and 23721 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:54,493 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:54,657 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:54,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:54,795 INFO L93 Difference]: Finished difference Result 20256 states and 53666 transitions. [2021-06-12 17:28:54,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:54,796 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:54,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:54,813 INFO L225 Difference]: With dead ends: 20256 [2021-06-12 17:28:54,813 INFO L226 Difference]: Without dead ends: 20256 [2021-06-12 17:28:54,813 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1086.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:54,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20256 states. [2021-06-12 17:28:54,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20256 to 8797. [2021-06-12 17:28:54,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8797 states, 8795 states have (on average 2.68664013644116) internal successors, (23629), 8796 states have internal predecessors, (23629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:54,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8797 states to 8797 states and 23629 transitions. [2021-06-12 17:28:54,955 INFO L78 Accepts]: Start accepts. Automaton has 8797 states and 23629 transitions. Word has length 114 [2021-06-12 17:28:54,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:54,955 INFO L482 AbstractCegarLoop]: Abstraction has 8797 states and 23629 transitions. [2021-06-12 17:28:54,955 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:54,955 INFO L276 IsEmpty]: Start isEmpty. Operand 8797 states and 23629 transitions. [2021-06-12 17:28:54,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:54,962 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:54,962 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:54,962 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-06-12 17:28:54,962 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]=== [2021-06-12 17:28:54,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:54,962 INFO L82 PathProgramCache]: Analyzing trace with hash -390563314, now seen corresponding path program 110 times [2021-06-12 17:28:54,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:54,962 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156157836] [2021-06-12 17:28:54,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:55,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:55,262 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:55,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156157836] [2021-06-12 17:28:55,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156157836] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:55,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:55,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:55,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132029329] [2021-06-12 17:28:55,262 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:55,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:55,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:55,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:55,263 INFO L87 Difference]: Start difference. First operand 8797 states and 23629 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:56,219 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:56,385 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:56,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:56,529 INFO L93 Difference]: Finished difference Result 19485 states and 52090 transitions. [2021-06-12 17:28:56,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:56,530 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:56,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:56,547 INFO L225 Difference]: With dead ends: 19485 [2021-06-12 17:28:56,547 INFO L226 Difference]: Without dead ends: 19485 [2021-06-12 17:28:56,547 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1131.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:56,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19485 states. [2021-06-12 17:28:56,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19485 to 8861. [2021-06-12 17:28:56,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:56,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-06-12 17:28:56,688 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-06-12 17:28:56,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:56,689 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-06-12 17:28:56,689 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:56,689 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-06-12 17:28:56,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:56,695 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:56,695 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:56,695 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-06-12 17:28:56,695 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]=== [2021-06-12 17:28:56,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:56,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1522673422, now seen corresponding path program 111 times [2021-06-12 17:28:56,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:56,696 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946294229] [2021-06-12 17:28:56,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:56,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:56,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:56,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946294229] [2021-06-12 17:28:56,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946294229] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:56,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:56,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:56,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056955020] [2021-06-12 17:28:57,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:57,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:57,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:57,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:57,000 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:57,783 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:57,950 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:28:58,115 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:28:58,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:58,250 INFO L93 Difference]: Finished difference Result 19557 states and 52222 transitions. [2021-06-12 17:28:58,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:58,250 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:58,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:58,267 INFO L225 Difference]: With dead ends: 19557 [2021-06-12 17:28:58,267 INFO L226 Difference]: Without dead ends: 19557 [2021-06-12 17:28:58,267 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1150.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:58,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19557 states. [2021-06-12 17:28:58,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19557 to 8877. [2021-06-12 17:28:58,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:58,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-12 17:28:58,409 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-12 17:28:58,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:28:58,409 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-12 17:28:58,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:58,410 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-12 17:28:58,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:28:58,416 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:28:58,416 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:28:58,416 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-06-12 17:28:58,416 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]=== [2021-06-12 17:28:58,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:28:58,417 INFO L82 PathProgramCache]: Analyzing trace with hash 434200236, now seen corresponding path program 112 times [2021-06-12 17:28:58,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:28:58,417 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144373771] [2021-06-12 17:28:58,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:28:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:28:58,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:28:58,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:28:58,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144373771] [2021-06-12 17:28:58,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144373771] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:28:58,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:28:58,717 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:28:58,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943247842] [2021-06-12 17:28:58,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:28:58,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:28:58,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:28:58,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:28:58,718 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:28:59,487 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:28:59,642 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:28:59,800 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:28:59,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:28:59,930 INFO L93 Difference]: Finished difference Result 18967 states and 50300 transitions. [2021-06-12 17:28:59,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:28:59,930 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:28:59,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:28:59,947 INFO L225 Difference]: With dead ends: 18967 [2021-06-12 17:28:59,947 INFO L226 Difference]: Without dead ends: 18967 [2021-06-12 17:28:59,948 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1124.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:28:59,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18967 states. [2021-06-12 17:29:00,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18967 to 8829. [2021-06-12 17:29:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8829 states, 8827 states have (on average 2.6873229862920582) internal successors, (23721), 8828 states have internal predecessors, (23721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:00,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 23721 transitions. [2021-06-12 17:29:00,103 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 23721 transitions. Word has length 114 [2021-06-12 17:29:00,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:00,103 INFO L482 AbstractCegarLoop]: Abstraction has 8829 states and 23721 transitions. [2021-06-12 17:29:00,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:00,103 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 23721 transitions. [2021-06-12 17:29:00,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:00,110 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:00,110 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:00,110 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-06-12 17:29:00,110 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]=== [2021-06-12 17:29:00,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:00,110 INFO L82 PathProgramCache]: Analyzing trace with hash -769380628, now seen corresponding path program 113 times [2021-06-12 17:29:00,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:00,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95382329] [2021-06-12 17:29:00,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:00,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:00,414 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:00,414 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95382329] [2021-06-12 17:29:00,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95382329] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:00,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:00,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:00,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442398859] [2021-06-12 17:29:00,414 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:00,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:00,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:00,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:00,414 INFO L87 Difference]: Start difference. First operand 8829 states and 23721 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:01,348 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:01,518 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:01,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:01,649 INFO L93 Difference]: Finished difference Result 19037 states and 50610 transitions. [2021-06-12 17:29:01,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:01,650 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:01,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:01,666 INFO L225 Difference]: With dead ends: 19037 [2021-06-12 17:29:01,666 INFO L226 Difference]: Without dead ends: 19037 [2021-06-12 17:29:01,666 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1103.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:01,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19037 states. [2021-06-12 17:29:01,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19037 to 8813. [2021-06-12 17:29:01,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8813 states, 8811 states have (on average 2.6869821813642036) internal successors, (23675), 8812 states have internal predecessors, (23675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:01,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8813 states to 8813 states and 23675 transitions. [2021-06-12 17:29:01,799 INFO L78 Accepts]: Start accepts. Automaton has 8813 states and 23675 transitions. Word has length 114 [2021-06-12 17:29:01,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:01,799 INFO L482 AbstractCegarLoop]: Abstraction has 8813 states and 23675 transitions. [2021-06-12 17:29:01,799 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:01,799 INFO L276 IsEmpty]: Start isEmpty. Operand 8813 states and 23675 transitions. [2021-06-12 17:29:01,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:01,806 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:01,806 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:01,806 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-06-12 17:29:01,806 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]=== [2021-06-12 17:29:01,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:01,806 INFO L82 PathProgramCache]: Analyzing trace with hash -429136270, now seen corresponding path program 114 times [2021-06-12 17:29:01,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:01,806 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103300004] [2021-06-12 17:29:01,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:02,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:02,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:02,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103300004] [2021-06-12 17:29:02,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103300004] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:02,131 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:02,131 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:02,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861281066] [2021-06-12 17:29:02,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:02,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:02,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:02,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:02,131 INFO L87 Difference]: Start difference. First operand 8813 states and 23675 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:03,067 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:03,231 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:03,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:03,368 INFO L93 Difference]: Finished difference Result 15792 states and 42126 transitions. [2021-06-12 17:29:03,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:03,368 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:03,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:03,382 INFO L225 Difference]: With dead ends: 15792 [2021-06-12 17:29:03,382 INFO L226 Difference]: Without dead ends: 15792 [2021-06-12 17:29:03,382 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1115.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:03,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15792 states. [2021-06-12 17:29:03,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15792 to 8757. [2021-06-12 17:29:03,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8757 states, 8755 states have (on average 2.6854368932038835) internal successors, (23511), 8756 states have internal predecessors, (23511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:03,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8757 states to 8757 states and 23511 transitions. [2021-06-12 17:29:03,511 INFO L78 Accepts]: Start accepts. Automaton has 8757 states and 23511 transitions. Word has length 114 [2021-06-12 17:29:03,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:03,511 INFO L482 AbstractCegarLoop]: Abstraction has 8757 states and 23511 transitions. [2021-06-12 17:29:03,512 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:03,512 INFO L276 IsEmpty]: Start isEmpty. Operand 8757 states and 23511 transitions. [2021-06-12 17:29:03,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:03,519 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:03,519 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:03,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-06-12 17:29:03,519 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]=== [2021-06-12 17:29:03,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:03,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1680536624, now seen corresponding path program 115 times [2021-06-12 17:29:03,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:03,520 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422823294] [2021-06-12 17:29:03,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:03,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:03,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:03,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422823294] [2021-06-12 17:29:03,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422823294] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:03,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:03,800 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:03,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671154121] [2021-06-12 17:29:03,800 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:03,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:03,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:03,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:03,801 INFO L87 Difference]: Start difference. First operand 8757 states and 23511 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:04,567 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-12 17:29:04,719 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:04,880 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:05,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:05,015 INFO L93 Difference]: Finished difference Result 20205 states and 53400 transitions. [2021-06-12 17:29:05,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:05,015 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:05,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:05,031 INFO L225 Difference]: With dead ends: 20205 [2021-06-12 17:29:05,032 INFO L226 Difference]: Without dead ends: 20205 [2021-06-12 17:29:05,032 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1098.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:05,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20205 states. [2021-06-12 17:29:05,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20205 to 8883. [2021-06-12 17:29:05,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:05,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-06-12 17:29:05,178 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-06-12 17:29:05,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:05,179 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-06-12 17:29:05,179 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:05,179 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-06-12 17:29:05,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:05,185 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:05,185 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:05,185 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-06-12 17:29:05,185 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]=== [2021-06-12 17:29:05,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:05,185 INFO L82 PathProgramCache]: Analyzing trace with hash -701193936, now seen corresponding path program 116 times [2021-06-12 17:29:05,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:05,186 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248638992] [2021-06-12 17:29:05,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:05,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:05,456 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:05,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248638992] [2021-06-12 17:29:05,456 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248638992] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:05,456 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:05,456 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:05,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438104865] [2021-06-12 17:29:05,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:05,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:05,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:05,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:05,457 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:06,237 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:06,378 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:06,542 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:06,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:06,690 INFO L93 Difference]: Finished difference Result 22733 states and 59949 transitions. [2021-06-12 17:29:06,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:06,690 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:06,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:06,709 INFO L225 Difference]: With dead ends: 22733 [2021-06-12 17:29:06,709 INFO L226 Difference]: Without dead ends: 22733 [2021-06-12 17:29:06,710 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1083.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:06,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22733 states. [2021-06-12 17:29:06,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22733 to 8899. [2021-06-12 17:29:06,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8899 states, 8897 states have (on average 2.688546701135214) internal successors, (23920), 8898 states have internal predecessors, (23920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:06,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8899 states to 8899 states and 23920 transitions. [2021-06-12 17:29:06,885 INFO L78 Accepts]: Start accepts. Automaton has 8899 states and 23920 transitions. Word has length 114 [2021-06-12 17:29:06,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:06,885 INFO L482 AbstractCegarLoop]: Abstraction has 8899 states and 23920 transitions. [2021-06-12 17:29:06,885 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:06,885 INFO L276 IsEmpty]: Start isEmpty. Operand 8899 states and 23920 transitions. [2021-06-12 17:29:06,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:06,891 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:06,891 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:06,891 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-06-12 17:29:06,892 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]=== [2021-06-12 17:29:06,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:06,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1789667122, now seen corresponding path program 117 times [2021-06-12 17:29:06,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:06,892 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038016081] [2021-06-12 17:29:06,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:07,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:07,167 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:07,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038016081] [2021-06-12 17:29:07,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038016081] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:07,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:07,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:07,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140088292] [2021-06-12 17:29:07,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:07,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:07,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:07,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:07,167 INFO L87 Difference]: Start difference. First operand 8899 states and 23920 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:07,950 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:08,103 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:29:08,265 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:29:08,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:08,412 INFO L93 Difference]: Finished difference Result 21073 states and 55349 transitions. [2021-06-12 17:29:08,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:08,412 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:08,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:08,430 INFO L225 Difference]: With dead ends: 21073 [2021-06-12 17:29:08,430 INFO L226 Difference]: Without dead ends: 21073 [2021-06-12 17:29:08,430 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1093.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:08,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21073 states. [2021-06-12 17:29:08,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21073 to 8851. [2021-06-12 17:29:08,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8851 states, 8849 states have (on average 2.6875353147248275) internal successors, (23782), 8850 states have internal predecessors, (23782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:08,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8851 states to 8851 states and 23782 transitions. [2021-06-12 17:29:08,586 INFO L78 Accepts]: Start accepts. Automaton has 8851 states and 23782 transitions. Word has length 114 [2021-06-12 17:29:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:08,586 INFO L482 AbstractCegarLoop]: Abstraction has 8851 states and 23782 transitions. [2021-06-12 17:29:08,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:08,586 INFO L276 IsEmpty]: Start isEmpty. Operand 8851 states and 23782 transitions. [2021-06-12 17:29:08,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:08,593 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:08,593 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:08,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-06-12 17:29:08,593 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]=== [2021-06-12 17:29:08,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:08,593 INFO L82 PathProgramCache]: Analyzing trace with hash -379447312, now seen corresponding path program 118 times [2021-06-12 17:29:08,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:08,593 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722291098] [2021-06-12 17:29:08,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:08,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:08,889 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:08,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722291098] [2021-06-12 17:29:08,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722291098] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:08,889 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:08,889 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:08,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490779505] [2021-06-12 17:29:08,890 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:08,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:08,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:08,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:08,890 INFO L87 Difference]: Start difference. First operand 8851 states and 23782 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:09,647 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:09,788 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:09,948 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:10,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:10,080 INFO L93 Difference]: Finished difference Result 20311 states and 53566 transitions. [2021-06-12 17:29:10,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:10,080 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:10,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:10,097 INFO L225 Difference]: With dead ends: 20311 [2021-06-12 17:29:10,097 INFO L226 Difference]: Without dead ends: 20311 [2021-06-12 17:29:10,098 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1071.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:10,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20311 states. [2021-06-12 17:29:10,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20311 to 8883. [2021-06-12 17:29:10,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:10,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-06-12 17:29:10,250 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-06-12 17:29:10,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:10,250 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-06-12 17:29:10,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:10,250 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-06-12 17:29:10,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:10,256 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:10,256 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:10,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-06-12 17:29:10,256 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]=== [2021-06-12 17:29:10,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:10,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1467920498, now seen corresponding path program 119 times [2021-06-12 17:29:10,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:10,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21323983] [2021-06-12 17:29:10,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:10,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:10,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:10,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21323983] [2021-06-12 17:29:10,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21323983] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:10,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:10,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:10,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860295359] [2021-06-12 17:29:10,521 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:10,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:10,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:10,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:10,521 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:11,296 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:11,448 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:29:11,603 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:29:11,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:11,738 INFO L93 Difference]: Finished difference Result 21124 states and 55370 transitions. [2021-06-12 17:29:11,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:11,738 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:11,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:11,756 INFO L225 Difference]: With dead ends: 21124 [2021-06-12 17:29:11,756 INFO L226 Difference]: Without dead ends: 21124 [2021-06-12 17:29:11,757 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1105.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:11,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21124 states. [2021-06-12 17:29:11,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21124 to 8867. [2021-06-12 17:29:11,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8867 states, 8865 states have (on average 2.687873660462493) internal successors, (23828), 8866 states have internal predecessors, (23828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:11,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8867 states to 8867 states and 23828 transitions. [2021-06-12 17:29:11,912 INFO L78 Accepts]: Start accepts. Automaton has 8867 states and 23828 transitions. Word has length 114 [2021-06-12 17:29:11,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:11,912 INFO L482 AbstractCegarLoop]: Abstraction has 8867 states and 23828 transitions. [2021-06-12 17:29:11,912 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:11,912 INFO L276 IsEmpty]: Start isEmpty. Operand 8867 states and 23828 transitions. [2021-06-12 17:29:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:11,919 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:11,919 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:11,919 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-06-12 17:29:11,919 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]=== [2021-06-12 17:29:11,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:11,920 INFO L82 PathProgramCache]: Analyzing trace with hash -670057038, now seen corresponding path program 120 times [2021-06-12 17:29:11,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:11,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962063823] [2021-06-12 17:29:11,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:12,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:12,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:12,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962063823] [2021-06-12 17:29:12,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962063823] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:12,179 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:12,179 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:12,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425831832] [2021-06-12 17:29:12,179 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:12,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:12,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:12,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:12,180 INFO L87 Difference]: Start difference. First operand 8867 states and 23828 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:12,957 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:13,127 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:29:13,287 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:29:13,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:13,430 INFO L93 Difference]: Finished difference Result 20450 states and 53783 transitions. [2021-06-12 17:29:13,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:13,430 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:13,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:13,448 INFO L225 Difference]: With dead ends: 20450 [2021-06-12 17:29:13,448 INFO L226 Difference]: Without dead ends: 20450 [2021-06-12 17:29:13,448 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1098.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:13,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20450 states. [2021-06-12 17:29:13,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20450 to 8883. [2021-06-12 17:29:13,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:13,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-06-12 17:29:13,597 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-06-12 17:29:13,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:13,597 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-06-12 17:29:13,597 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:13,597 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-06-12 17:29:13,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:13,604 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:13,604 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:13,604 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-06-12 17:29:13,604 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]=== [2021-06-12 17:29:13,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:13,604 INFO L82 PathProgramCache]: Analyzing trace with hash -918604018, now seen corresponding path program 121 times [2021-06-12 17:29:13,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:13,604 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852669217] [2021-06-12 17:29:13,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:13,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:13,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:13,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852669217] [2021-06-12 17:29:13,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852669217] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:13,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:13,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:13,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626821603] [2021-06-12 17:29:13,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:13,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:13,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:13,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:13,861 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:14,629 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:14,770 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:14,929 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:15,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:15,062 INFO L93 Difference]: Finished difference Result 17797 states and 47023 transitions. [2021-06-12 17:29:15,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:15,063 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:15,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:15,078 INFO L225 Difference]: With dead ends: 17797 [2021-06-12 17:29:15,078 INFO L226 Difference]: Without dead ends: 17797 [2021-06-12 17:29:15,078 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1063.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:15,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17797 states. [2021-06-12 17:29:15,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17797 to 8819. [2021-06-12 17:29:15,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8819 states, 8817 states have (on average 2.6868549393217647) internal successors, (23690), 8818 states have internal predecessors, (23690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:15,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8819 states to 8819 states and 23690 transitions. [2021-06-12 17:29:15,239 INFO L78 Accepts]: Start accepts. Automaton has 8819 states and 23690 transitions. Word has length 114 [2021-06-12 17:29:15,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:15,239 INFO L482 AbstractCegarLoop]: Abstraction has 8819 states and 23690 transitions. [2021-06-12 17:29:15,240 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:15,240 INFO L276 IsEmpty]: Start isEmpty. Operand 8819 states and 23690 transitions. [2021-06-12 17:29:15,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:15,246 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:15,246 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:15,246 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-06-12 17:29:15,246 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]=== [2021-06-12 17:29:15,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:15,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1585858386, now seen corresponding path program 122 times [2021-06-12 17:29:15,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:15,247 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783917825] [2021-06-12 17:29:15,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:15,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:15,528 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:15,528 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783917825] [2021-06-12 17:29:15,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783917825] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:15,528 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:15,528 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:15,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146022251] [2021-06-12 17:29:15,528 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:15,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:15,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:15,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:15,528 INFO L87 Difference]: Start difference. First operand 8819 states and 23690 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:16,455 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:16,620 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:16,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:16,763 INFO L93 Difference]: Finished difference Result 18933 states and 50315 transitions. [2021-06-12 17:29:16,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:16,764 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:16,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:16,780 INFO L225 Difference]: With dead ends: 18933 [2021-06-12 17:29:16,780 INFO L226 Difference]: Without dead ends: 18933 [2021-06-12 17:29:16,780 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1086.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:16,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18933 states. [2021-06-12 17:29:16,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18933 to 8867. [2021-06-12 17:29:16,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8867 states, 8865 states have (on average 2.687873660462493) internal successors, (23828), 8866 states have internal predecessors, (23828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:16,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8867 states to 8867 states and 23828 transitions. [2021-06-12 17:29:16,918 INFO L78 Accepts]: Start accepts. Automaton has 8867 states and 23828 transitions. Word has length 114 [2021-06-12 17:29:16,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:16,918 INFO L482 AbstractCegarLoop]: Abstraction has 8867 states and 23828 transitions. [2021-06-12 17:29:16,918 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:16,918 INFO L276 IsEmpty]: Start isEmpty. Operand 8867 states and 23828 transitions. [2021-06-12 17:29:16,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:16,925 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:16,925 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:16,925 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-06-12 17:29:16,925 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]=== [2021-06-12 17:29:16,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:16,925 INFO L82 PathProgramCache]: Analyzing trace with hash -795872174, now seen corresponding path program 123 times [2021-06-12 17:29:16,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:16,925 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388945939] [2021-06-12 17:29:16,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:17,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:17,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:17,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388945939] [2021-06-12 17:29:17,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388945939] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:17,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:17,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:17,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793666861] [2021-06-12 17:29:17,206 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:17,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:17,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:17,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:17,206 INFO L87 Difference]: Start difference. First operand 8867 states and 23828 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:17,991 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:18,132 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:18,293 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:18,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:18,431 INFO L93 Difference]: Finished difference Result 19005 states and 50447 transitions. [2021-06-12 17:29:18,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:18,432 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:18,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:18,450 INFO L225 Difference]: With dead ends: 19005 [2021-06-12 17:29:18,450 INFO L226 Difference]: Without dead ends: 19005 [2021-06-12 17:29:18,451 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1092.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:18,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19005 states. [2021-06-12 17:29:18,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19005 to 8883. [2021-06-12 17:29:18,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.688210787073528) internal successors, (23874), 8882 states have internal predecessors, (23874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:18,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 23874 transitions. [2021-06-12 17:29:18,601 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 23874 transitions. Word has length 114 [2021-06-12 17:29:18,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:18,601 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 23874 transitions. [2021-06-12 17:29:18,601 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:18,601 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 23874 transitions. [2021-06-12 17:29:18,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:18,608 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:18,608 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:18,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-06-12 17:29:18,608 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]=== [2021-06-12 17:29:18,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:18,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1884345360, now seen corresponding path program 124 times [2021-06-12 17:29:18,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:18,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855796457] [2021-06-12 17:29:18,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:18,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:18,916 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:18,916 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855796457] [2021-06-12 17:29:18,916 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855796457] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:18,916 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:18,916 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:18,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716086437] [2021-06-12 17:29:18,916 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:18,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:18,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:18,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:18,917 INFO L87 Difference]: Start difference. First operand 8883 states and 23874 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:19,719 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:19,873 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:29:20,030 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:29:20,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:20,159 INFO L93 Difference]: Finished difference Result 18415 states and 48525 transitions. [2021-06-12 17:29:20,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:20,159 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:20,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:20,175 INFO L225 Difference]: With dead ends: 18415 [2021-06-12 17:29:20,175 INFO L226 Difference]: Without dead ends: 18415 [2021-06-12 17:29:20,176 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1160.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:20,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18415 states. [2021-06-12 17:29:20,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18415 to 8835. [2021-06-12 17:29:20,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8835 states, 8833 states have (on average 2.687195743235594) internal successors, (23736), 8834 states have internal predecessors, (23736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:20,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8835 states to 8835 states and 23736 transitions. [2021-06-12 17:29:20,316 INFO L78 Accepts]: Start accepts. Automaton has 8835 states and 23736 transitions. Word has length 114 [2021-06-12 17:29:20,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:20,317 INFO L482 AbstractCegarLoop]: Abstraction has 8835 states and 23736 transitions. [2021-06-12 17:29:20,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:20,317 INFO L276 IsEmpty]: Start isEmpty. Operand 8835 states and 23736 transitions. [2021-06-12 17:29:20,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:20,324 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:20,324 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:20,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-06-12 17:29:20,324 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]=== [2021-06-12 17:29:20,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:20,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1207041072, now seen corresponding path program 125 times [2021-06-12 17:29:20,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:20,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838658532] [2021-06-12 17:29:20,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:20,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:20,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:20,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838658532] [2021-06-12 17:29:20,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838658532] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:20,615 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:20,615 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:20,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689579029] [2021-06-12 17:29:20,616 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:20,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:20,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:20,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:20,616 INFO L87 Difference]: Start difference. First operand 8835 states and 23736 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:21,526 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:21,692 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:21,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:21,819 INFO L93 Difference]: Finished difference Result 15303 states and 40516 transitions. [2021-06-12 17:29:21,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:21,819 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:21,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:21,832 INFO L225 Difference]: With dead ends: 15303 [2021-06-12 17:29:21,832 INFO L226 Difference]: Without dead ends: 15303 [2021-06-12 17:29:21,833 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1096.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:21,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15303 states. [2021-06-12 17:29:21,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15303 to 8803. [2021-06-12 17:29:21,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8803 states, 8801 states have (on average 2.6865128962617884) internal successors, (23644), 8802 states have internal predecessors, (23644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:21,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8803 states to 8803 states and 23644 transitions. [2021-06-12 17:29:21,974 INFO L78 Accepts]: Start accepts. Automaton has 8803 states and 23644 transitions. Word has length 114 [2021-06-12 17:29:21,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:21,974 INFO L482 AbstractCegarLoop]: Abstraction has 8803 states and 23644 transitions. [2021-06-12 17:29:21,974 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:21,975 INFO L276 IsEmpty]: Start isEmpty. Operand 8803 states and 23644 transitions. [2021-06-12 17:29:21,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:21,981 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:21,981 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:21,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-06-12 17:29:21,981 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]=== [2021-06-12 17:29:21,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:21,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1776410032, now seen corresponding path program 126 times [2021-06-12 17:29:21,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:21,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7586320] [2021-06-12 17:29:21,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:22,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:22,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:22,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7586320] [2021-06-12 17:29:22,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7586320] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:22,255 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:22,255 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:22,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447877359] [2021-06-12 17:29:22,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:22,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:22,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:22,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:22,256 INFO L87 Difference]: Start difference. First operand 8803 states and 23644 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:23,192 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:23,357 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:23,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:23,501 INFO L93 Difference]: Finished difference Result 19703 states and 51836 transitions. [2021-06-12 17:29:23,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:23,502 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:23,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:23,518 INFO L225 Difference]: With dead ends: 19703 [2021-06-12 17:29:23,518 INFO L226 Difference]: Without dead ends: 19703 [2021-06-12 17:29:23,518 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1083.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:23,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19703 states. [2021-06-12 17:29:23,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19703 to 8931. [2021-06-12 17:29:23,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:23,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-06-12 17:29:23,664 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-06-12 17:29:23,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:23,664 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-06-12 17:29:23,664 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:23,664 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-06-12 17:29:23,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:23,671 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:23,671 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:23,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-06-12 17:29:23,671 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]=== [2021-06-12 17:29:23,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:23,671 INFO L82 PathProgramCache]: Analyzing trace with hash 136826704, now seen corresponding path program 127 times [2021-06-12 17:29:23,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:23,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152940749] [2021-06-12 17:29:23,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:23,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:23,978 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:23,978 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152940749] [2021-06-12 17:29:23,978 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152940749] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:23,978 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:23,978 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:23,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547763635] [2021-06-12 17:29:23,978 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:23,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:23,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:23,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:23,978 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:24,757 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:24,901 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:25,066 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:25,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:25,206 INFO L93 Difference]: Finished difference Result 22231 states and 58385 transitions. [2021-06-12 17:29:25,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:25,207 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:25,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:25,226 INFO L225 Difference]: With dead ends: 22231 [2021-06-12 17:29:25,227 INFO L226 Difference]: Without dead ends: 22231 [2021-06-12 17:29:25,227 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1132.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:25,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22231 states. [2021-06-12 17:29:25,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22231 to 8947. [2021-06-12 17:29:25,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8947 states, 8945 states have (on average 2.6895472330911123) internal successors, (24058), 8946 states have internal predecessors, (24058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:25,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8947 states to 8947 states and 24058 transitions. [2021-06-12 17:29:25,384 INFO L78 Accepts]: Start accepts. Automaton has 8947 states and 24058 transitions. Word has length 114 [2021-06-12 17:29:25,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:25,384 INFO L482 AbstractCegarLoop]: Abstraction has 8947 states and 24058 transitions. [2021-06-12 17:29:25,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:25,385 INFO L276 IsEmpty]: Start isEmpty. Operand 8947 states and 24058 transitions. [2021-06-12 17:29:25,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:25,391 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:25,391 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:25,391 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-06-12 17:29:25,391 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]=== [2021-06-12 17:29:25,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:25,391 INFO L82 PathProgramCache]: Analyzing trace with hash -951646482, now seen corresponding path program 128 times [2021-06-12 17:29:25,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:25,392 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065525809] [2021-06-12 17:29:25,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:25,666 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:25,666 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065525809] [2021-06-12 17:29:25,666 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065525809] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:25,666 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:25,666 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:25,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42285011] [2021-06-12 17:29:25,666 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:25,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:25,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:25,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:25,667 INFO L87 Difference]: Start difference. First operand 8947 states and 24058 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:26,487 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:26,642 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:29:26,806 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:29:26,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:26,952 INFO L93 Difference]: Finished difference Result 20571 states and 53785 transitions. [2021-06-12 17:29:26,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:26,952 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:26,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:26,970 INFO L225 Difference]: With dead ends: 20571 [2021-06-12 17:29:26,970 INFO L226 Difference]: Without dead ends: 20571 [2021-06-12 17:29:26,970 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1123.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:26,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20571 states. [2021-06-12 17:29:27,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20571 to 8899. [2021-06-12 17:29:27,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8899 states, 8897 states have (on average 2.688546701135214) internal successors, (23920), 8898 states have internal predecessors, (23920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:27,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8899 states to 8899 states and 23920 transitions. [2021-06-12 17:29:27,120 INFO L78 Accepts]: Start accepts. Automaton has 8899 states and 23920 transitions. Word has length 114 [2021-06-12 17:29:27,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:27,120 INFO L482 AbstractCegarLoop]: Abstraction has 8899 states and 23920 transitions. [2021-06-12 17:29:27,120 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:27,120 INFO L276 IsEmpty]: Start isEmpty. Operand 8899 states and 23920 transitions. [2021-06-12 17:29:27,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:27,126 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:27,127 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:27,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-06-12 17:29:27,127 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]=== [2021-06-12 17:29:27,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:27,127 INFO L82 PathProgramCache]: Analyzing trace with hash 458573328, now seen corresponding path program 129 times [2021-06-12 17:29:27,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:27,127 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417065061] [2021-06-12 17:29:27,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:27,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:27,385 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:27,385 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417065061] [2021-06-12 17:29:27,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417065061] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:27,385 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:27,385 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:27,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021756246] [2021-06-12 17:29:27,385 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:27,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:27,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:27,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:27,385 INFO L87 Difference]: Start difference. First operand 8899 states and 23920 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:28,150 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:28,293 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:28,474 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:28,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:28,618 INFO L93 Difference]: Finished difference Result 23561 states and 61564 transitions. [2021-06-12 17:29:28,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:28,619 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:28,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:28,639 INFO L225 Difference]: With dead ends: 23561 [2021-06-12 17:29:28,639 INFO L226 Difference]: Without dead ends: 23561 [2021-06-12 17:29:28,639 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1095.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:28,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23561 states. [2021-06-12 17:29:28,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23561 to 8931. [2021-06-12 17:29:28,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:28,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-06-12 17:29:28,807 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-06-12 17:29:28,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:28,807 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-06-12 17:29:28,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:28,807 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-06-12 17:29:28,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:28,814 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:28,814 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:28,814 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-06-12 17:29:28,814 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]=== [2021-06-12 17:29:28,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:28,814 INFO L82 PathProgramCache]: Analyzing trace with hash -629899858, now seen corresponding path program 130 times [2021-06-12 17:29:28,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:28,814 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757331093] [2021-06-12 17:29:28,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:29,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:29,076 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:29,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757331093] [2021-06-12 17:29:29,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757331093] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:29,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:29,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:29,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546211608] [2021-06-12 17:29:29,076 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:29,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:29,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:29,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:29,077 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:29,864 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:30,025 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:29:30,186 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:29:30,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:30,350 INFO L93 Difference]: Finished difference Result 24374 states and 63368 transitions. [2021-06-12 17:29:30,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:30,350 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:30,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:30,371 INFO L225 Difference]: With dead ends: 24374 [2021-06-12 17:29:30,371 INFO L226 Difference]: Without dead ends: 24374 [2021-06-12 17:29:30,372 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1089.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:30,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24374 states. [2021-06-12 17:29:30,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24374 to 8915. [2021-06-12 17:29:30,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8915 states, 8913 states have (on average 2.688881409177606) internal successors, (23966), 8914 states have internal predecessors, (23966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:30,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8915 states to 8915 states and 23966 transitions. [2021-06-12 17:29:30,566 INFO L78 Accepts]: Start accepts. Automaton has 8915 states and 23966 transitions. Word has length 114 [2021-06-12 17:29:30,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:30,566 INFO L482 AbstractCegarLoop]: Abstraction has 8915 states and 23966 transitions. [2021-06-12 17:29:30,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:30,566 INFO L276 IsEmpty]: Start isEmpty. Operand 8915 states and 23966 transitions. [2021-06-12 17:29:30,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:30,573 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:30,573 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:30,573 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-06-12 17:29:30,573 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]=== [2021-06-12 17:29:30,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:30,573 INFO L82 PathProgramCache]: Analyzing trace with hash 167963602, now seen corresponding path program 131 times [2021-06-12 17:29:30,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:30,573 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372376392] [2021-06-12 17:29:30,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:30,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:30,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372376392] [2021-06-12 17:29:30,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372376392] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:30,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:30,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:30,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819102647] [2021-06-12 17:29:30,841 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:30,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:30,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:30,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:30,842 INFO L87 Difference]: Start difference. First operand 8915 states and 23966 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:31,606 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:31,756 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:29:31,914 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:29:32,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:32,056 INFO L93 Difference]: Finished difference Result 23700 states and 61781 transitions. [2021-06-12 17:29:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:32,057 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:32,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:32,078 INFO L225 Difference]: With dead ends: 23700 [2021-06-12 17:29:32,078 INFO L226 Difference]: Without dead ends: 23700 [2021-06-12 17:29:32,078 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1090.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:32,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23700 states. [2021-06-12 17:29:32,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23700 to 8931. [2021-06-12 17:29:32,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:32,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-06-12 17:29:32,253 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-06-12 17:29:32,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:32,253 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-06-12 17:29:32,254 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:32,254 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-06-12 17:29:32,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:32,261 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:32,261 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:32,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-06-12 17:29:32,261 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]=== [2021-06-12 17:29:32,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:32,262 INFO L82 PathProgramCache]: Analyzing trace with hash -80583378, now seen corresponding path program 132 times [2021-06-12 17:29:32,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:32,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835631090] [2021-06-12 17:29:32,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:32,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:32,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:32,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835631090] [2021-06-12 17:29:32,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835631090] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:32,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:32,556 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:32,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402434911] [2021-06-12 17:29:32,556 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:32,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:32,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:32,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:32,557 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:33,311 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:33,453 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:33,612 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:33,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:33,733 INFO L93 Difference]: Finished difference Result 20765 states and 54307 transitions. [2021-06-12 17:29:33,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:33,733 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:33,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:33,751 INFO L225 Difference]: With dead ends: 20765 [2021-06-12 17:29:33,751 INFO L226 Difference]: Without dead ends: 20765 [2021-06-12 17:29:33,752 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1103.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:33,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20765 states. [2021-06-12 17:29:33,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20765 to 8867. [2021-06-12 17:29:33,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8867 states, 8865 states have (on average 2.687873660462493) internal successors, (23828), 8866 states have internal predecessors, (23828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:33,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8867 states to 8867 states and 23828 transitions. [2021-06-12 17:29:33,903 INFO L78 Accepts]: Start accepts. Automaton has 8867 states and 23828 transitions. Word has length 114 [2021-06-12 17:29:33,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:33,903 INFO L482 AbstractCegarLoop]: Abstraction has 8867 states and 23828 transitions. [2021-06-12 17:29:33,903 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:33,903 INFO L276 IsEmpty]: Start isEmpty. Operand 8867 states and 23828 transitions. [2021-06-12 17:29:33,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:33,909 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:33,909 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:33,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-06-12 17:29:33,910 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]=== [2021-06-12 17:29:33,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:33,910 INFO L82 PathProgramCache]: Analyzing trace with hash 323371154, now seen corresponding path program 133 times [2021-06-12 17:29:33,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:33,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300905236] [2021-06-12 17:29:33,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:34,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:34,172 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:34,172 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300905236] [2021-06-12 17:29:34,172 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300905236] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:34,172 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:34,172 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:34,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990268648] [2021-06-12 17:29:34,172 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:34,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:34,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:34,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:34,172 INFO L87 Difference]: Start difference. First operand 8867 states and 23828 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:34,722 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-12 17:29:34,982 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:35,127 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:35,290 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:35,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:35,430 INFO L93 Difference]: Finished difference Result 19281 states and 50646 transitions. [2021-06-12 17:29:35,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:35,430 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:35,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:35,446 INFO L225 Difference]: With dead ends: 19281 [2021-06-12 17:29:35,446 INFO L226 Difference]: Without dead ends: 19281 [2021-06-12 17:29:35,447 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1105.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:35,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19281 states. [2021-06-12 17:29:35,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19281 to 8931. [2021-06-12 17:29:35,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:35,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-06-12 17:29:35,594 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-06-12 17:29:35,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:35,594 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-06-12 17:29:35,594 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:35,594 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-06-12 17:29:35,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:35,600 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:35,600 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:35,600 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-06-12 17:29:35,600 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]=== [2021-06-12 17:29:35,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:35,601 INFO L82 PathProgramCache]: Analyzing trace with hash -765102032, now seen corresponding path program 134 times [2021-06-12 17:29:35,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:35,601 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214239078] [2021-06-12 17:29:35,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:35,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:35,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:35,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214239078] [2021-06-12 17:29:35,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214239078] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:35,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:35,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:35,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276021543] [2021-06-12 17:29:35,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:35,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:35,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:35,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:35,867 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:36,633 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:36,791 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:29:36,968 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:29:37,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:37,096 INFO L93 Difference]: Finished difference Result 20094 states and 52450 transitions. [2021-06-12 17:29:37,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:37,096 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:37,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:37,113 INFO L225 Difference]: With dead ends: 20094 [2021-06-12 17:29:37,113 INFO L226 Difference]: Without dead ends: 20094 [2021-06-12 17:29:37,113 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1116.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:37,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20094 states. [2021-06-12 17:29:37,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20094 to 8915. [2021-06-12 17:29:37,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8915 states, 8913 states have (on average 2.688881409177606) internal successors, (23966), 8914 states have internal predecessors, (23966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:37,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8915 states to 8915 states and 23966 transitions. [2021-06-12 17:29:37,263 INFO L78 Accepts]: Start accepts. Automaton has 8915 states and 23966 transitions. Word has length 114 [2021-06-12 17:29:37,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:37,263 INFO L482 AbstractCegarLoop]: Abstraction has 8915 states and 23966 transitions. [2021-06-12 17:29:37,263 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:37,263 INFO L276 IsEmpty]: Start isEmpty. Operand 8915 states and 23966 transitions. [2021-06-12 17:29:37,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:37,270 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:37,270 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:37,270 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-06-12 17:29:37,270 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]=== [2021-06-12 17:29:37,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:37,270 INFO L82 PathProgramCache]: Analyzing trace with hash 32761428, now seen corresponding path program 135 times [2021-06-12 17:29:37,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:37,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653519506] [2021-06-12 17:29:37,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:37,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:37,534 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:37,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653519506] [2021-06-12 17:29:37,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653519506] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:37,534 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:37,534 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:37,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742151381] [2021-06-12 17:29:37,535 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:37,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:37,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:37,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:37,535 INFO L87 Difference]: Start difference. First operand 8915 states and 23966 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:38,299 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:38,448 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:29:38,605 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:29:38,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:38,747 INFO L93 Difference]: Finished difference Result 23207 states and 60400 transitions. [2021-06-12 17:29:38,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:38,747 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:38,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:38,767 INFO L225 Difference]: With dead ends: 23207 [2021-06-12 17:29:38,767 INFO L226 Difference]: Without dead ends: 23207 [2021-06-12 17:29:38,767 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1087.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:38,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23207 states. [2021-06-12 17:29:38,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23207 to 8931. [2021-06-12 17:29:38,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:38,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-06-12 17:29:38,980 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-06-12 17:29:38,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:38,980 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-06-12 17:29:38,980 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:38,980 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-06-12 17:29:38,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:38,987 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:38,987 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:38,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-06-12 17:29:38,987 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]=== [2021-06-12 17:29:38,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:38,988 INFO L82 PathProgramCache]: Analyzing trace with hash -215785552, now seen corresponding path program 136 times [2021-06-12 17:29:38,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:38,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292208401] [2021-06-12 17:29:38,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:39,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:39,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:39,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292208401] [2021-06-12 17:29:39,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292208401] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:39,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:39,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:39,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120485174] [2021-06-12 17:29:39,244 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:39,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:39,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:39,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:39,245 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:40,028 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:40,173 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:40,336 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:40,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:40,467 INFO L93 Difference]: Finished difference Result 20272 states and 52926 transitions. [2021-06-12 17:29:40,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:40,467 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:40,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:40,485 INFO L225 Difference]: With dead ends: 20272 [2021-06-12 17:29:40,485 INFO L226 Difference]: Without dead ends: 20272 [2021-06-12 17:29:40,485 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1077.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:40,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20272 states. [2021-06-12 17:29:40,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20272 to 8899. [2021-06-12 17:29:40,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8899 states, 8897 states have (on average 2.688546701135214) internal successors, (23920), 8898 states have internal predecessors, (23920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:40,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8899 states to 8899 states and 23920 transitions. [2021-06-12 17:29:40,640 INFO L78 Accepts]: Start accepts. Automaton has 8899 states and 23920 transitions. Word has length 114 [2021-06-12 17:29:40,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:40,640 INFO L482 AbstractCegarLoop]: Abstraction has 8899 states and 23920 transitions. [2021-06-12 17:29:40,640 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:40,641 INFO L276 IsEmpty]: Start isEmpty. Operand 8899 states and 23920 transitions. [2021-06-12 17:29:40,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:40,648 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:40,648 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:40,648 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-06-12 17:29:40,648 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]=== [2021-06-12 17:29:40,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:40,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1236055858, now seen corresponding path program 137 times [2021-06-12 17:29:40,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:40,648 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307839224] [2021-06-12 17:29:40,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:40,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:40,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:40,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307839224] [2021-06-12 17:29:40,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307839224] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:40,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:40,929 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:40,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063336494] [2021-06-12 17:29:40,930 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:40,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:40,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:40,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:40,930 INFO L87 Difference]: Start difference. First operand 8899 states and 23920 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:41,729 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:41,891 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:29:42,053 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:29:42,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:42,194 INFO L93 Difference]: Finished difference Result 19404 states and 50817 transitions. [2021-06-12 17:29:42,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:42,195 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:42,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:42,213 INFO L225 Difference]: With dead ends: 19404 [2021-06-12 17:29:42,214 INFO L226 Difference]: Without dead ends: 19404 [2021-06-12 17:29:42,214 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1119.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:42,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19404 states. [2021-06-12 17:29:42,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19404 to 8947. [2021-06-12 17:29:42,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8947 states, 8945 states have (on average 2.6895472330911123) internal successors, (24058), 8946 states have internal predecessors, (24058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:42,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8947 states to 8947 states and 24058 transitions. [2021-06-12 17:29:42,358 INFO L78 Accepts]: Start accepts. Automaton has 8947 states and 24058 transitions. Word has length 114 [2021-06-12 17:29:42,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:42,358 INFO L482 AbstractCegarLoop]: Abstraction has 8947 states and 24058 transitions. [2021-06-12 17:29:42,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:42,359 INFO L276 IsEmpty]: Start isEmpty. Operand 8947 states and 24058 transitions. [2021-06-12 17:29:42,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:42,365 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:42,365 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:42,365 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-06-12 17:29:42,365 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]=== [2021-06-12 17:29:42,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:42,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1484602838, now seen corresponding path program 138 times [2021-06-12 17:29:42,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:42,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831393636] [2021-06-12 17:29:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:42,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:42,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:42,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831393636] [2021-06-12 17:29:42,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831393636] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:42,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:42,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:42,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911438594] [2021-06-12 17:29:42,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:42,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:42,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:42,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:42,657 INFO L87 Difference]: Start difference. First operand 8947 states and 24058 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:43,462 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:43,606 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:43,770 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:43,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:43,899 INFO L93 Difference]: Finished difference Result 19244 states and 50415 transitions. [2021-06-12 17:29:43,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:43,899 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:43,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:43,916 INFO L225 Difference]: With dead ends: 19244 [2021-06-12 17:29:43,916 INFO L226 Difference]: Without dead ends: 19244 [2021-06-12 17:29:43,916 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1128.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:43,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19244 states. [2021-06-12 17:29:44,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19244 to 8931. [2021-06-12 17:29:44,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8931 states, 8929 states have (on average 2.6892149176839513) internal successors, (24012), 8930 states have internal predecessors, (24012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:44,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 24012 transitions. [2021-06-12 17:29:44,054 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 24012 transitions. Word has length 114 [2021-06-12 17:29:44,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:44,054 INFO L482 AbstractCegarLoop]: Abstraction has 8931 states and 24012 transitions. [2021-06-12 17:29:44,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:44,055 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 24012 transitions. [2021-06-12 17:29:44,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:44,061 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:44,061 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:44,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-06-12 17:29:44,061 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]=== [2021-06-12 17:29:44,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:44,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1653547154, now seen corresponding path program 139 times [2021-06-12 17:29:44,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:44,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342576213] [2021-06-12 17:29:44,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:44,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:44,331 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:44,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342576213] [2021-06-12 17:29:44,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342576213] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:44,331 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:44,331 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:44,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253973792] [2021-06-12 17:29:44,331 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:44,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:44,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:44,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:44,332 INFO L87 Difference]: Start difference. First operand 8931 states and 24012 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:45,234 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:45,397 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:45,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:45,510 INFO L93 Difference]: Finished difference Result 16395 states and 43155 transitions. [2021-06-12 17:29:45,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:45,510 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:45,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:45,524 INFO L225 Difference]: With dead ends: 16395 [2021-06-12 17:29:45,524 INFO L226 Difference]: Without dead ends: 16395 [2021-06-12 17:29:45,525 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1081.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:45,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16395 states. [2021-06-12 17:29:45,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16395 to 8771. [2021-06-12 17:29:45,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8771 states, 8769 states have (on average 2.685825065571901) internal successors, (23552), 8770 states have internal predecessors, (23552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:45,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8771 states to 8771 states and 23552 transitions. [2021-06-12 17:29:45,670 INFO L78 Accepts]: Start accepts. Automaton has 8771 states and 23552 transitions. Word has length 114 [2021-06-12 17:29:45,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:45,671 INFO L482 AbstractCegarLoop]: Abstraction has 8771 states and 23552 transitions. [2021-06-12 17:29:45,671 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:45,671 INFO L276 IsEmpty]: Start isEmpty. Operand 8771 states and 23552 transitions. [2021-06-12 17:29:45,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:45,677 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:45,678 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:45,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-06-12 17:29:45,678 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]=== [2021-06-12 17:29:45,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:45,678 INFO L82 PathProgramCache]: Analyzing trace with hash -479350738, now seen corresponding path program 140 times [2021-06-12 17:29:45,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:45,678 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808147460] [2021-06-12 17:29:45,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:45,952 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:45,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808147460] [2021-06-12 17:29:45,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808147460] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:45,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:45,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:45,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945561296] [2021-06-12 17:29:45,953 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:45,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:45,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:45,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:45,953 INFO L87 Difference]: Start difference. First operand 8771 states and 23552 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:46,886 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:47,048 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:47,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:47,174 INFO L93 Difference]: Finished difference Result 14272 states and 37721 transitions. [2021-06-12 17:29:47,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:47,174 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:47,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:47,186 INFO L225 Difference]: With dead ends: 14272 [2021-06-12 17:29:47,187 INFO L226 Difference]: Without dead ends: 14272 [2021-06-12 17:29:47,187 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1089.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:47,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14272 states. [2021-06-12 17:29:47,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14272 to 8927. [2021-06-12 17:29:47,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:47,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-06-12 17:29:47,305 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-06-12 17:29:47,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:47,305 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-06-12 17:29:47,305 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:47,305 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-06-12 17:29:47,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:47,312 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:47,312 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:47,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-06-12 17:29:47,312 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]=== [2021-06-12 17:29:47,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:47,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1433885998, now seen corresponding path program 141 times [2021-06-12 17:29:47,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:47,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393866491] [2021-06-12 17:29:47,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:47,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:47,580 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:47,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393866491] [2021-06-12 17:29:47,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393866491] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:47,580 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:47,580 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:47,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557745495] [2021-06-12 17:29:47,580 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:47,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:47,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:47,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:47,580 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:48,385 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:48,528 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:48,692 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:48,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:48,823 INFO L93 Difference]: Finished difference Result 16800 states and 44270 transitions. [2021-06-12 17:29:48,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:48,823 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:48,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:48,838 INFO L225 Difference]: With dead ends: 16800 [2021-06-12 17:29:48,838 INFO L226 Difference]: Without dead ends: 16800 [2021-06-12 17:29:48,838 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1106.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:48,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16800 states. [2021-06-12 17:29:48,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16800 to 8943. [2021-06-12 17:29:48,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8943 states, 8941 states have (on average 2.689632032211162) internal successors, (24048), 8942 states have internal predecessors, (24048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:48,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8943 states to 8943 states and 24048 transitions. [2021-06-12 17:29:48,974 INFO L78 Accepts]: Start accepts. Automaton has 8943 states and 24048 transitions. Word has length 114 [2021-06-12 17:29:48,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:48,974 INFO L482 AbstractCegarLoop]: Abstraction has 8943 states and 24048 transitions. [2021-06-12 17:29:48,974 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:48,974 INFO L276 IsEmpty]: Start isEmpty. Operand 8943 states and 24048 transitions. [2021-06-12 17:29:48,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:48,980 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:48,980 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:48,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-06-12 17:29:48,981 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]=== [2021-06-12 17:29:48,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:48,981 INFO L82 PathProgramCache]: Analyzing trace with hash 345412812, now seen corresponding path program 142 times [2021-06-12 17:29:48,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:48,981 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028752441] [2021-06-12 17:29:48,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:49,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:49,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:49,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028752441] [2021-06-12 17:29:49,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028752441] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:49,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:49,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:49,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809352703] [2021-06-12 17:29:49,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:49,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:49,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:49,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:49,254 INFO L87 Difference]: Start difference. First operand 8943 states and 24048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:50,048 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:50,197 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:29:50,354 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:29:50,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:50,471 INFO L93 Difference]: Finished difference Result 15140 states and 39670 transitions. [2021-06-12 17:29:50,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:50,471 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:50,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:50,485 INFO L225 Difference]: With dead ends: 15140 [2021-06-12 17:29:50,485 INFO L226 Difference]: Without dead ends: 15140 [2021-06-12 17:29:50,485 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1128.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:50,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15140 states. [2021-06-12 17:29:50,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15140 to 8895. [2021-06-12 17:29:50,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8895 states, 8893 states have (on average 2.6886315079275835) internal successors, (23910), 8894 states have internal predecessors, (23910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:50,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8895 states to 8895 states and 23910 transitions. [2021-06-12 17:29:50,618 INFO L78 Accepts]: Start accepts. Automaton has 8895 states and 23910 transitions. Word has length 114 [2021-06-12 17:29:50,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:50,618 INFO L482 AbstractCegarLoop]: Abstraction has 8895 states and 23910 transitions. [2021-06-12 17:29:50,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:50,618 INFO L276 IsEmpty]: Start isEmpty. Operand 8895 states and 23910 transitions. [2021-06-12 17:29:50,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:50,624 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:50,624 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:50,624 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-06-12 17:29:50,624 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]=== [2021-06-12 17:29:50,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:50,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1755632622, now seen corresponding path program 143 times [2021-06-12 17:29:50,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:50,625 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819199420] [2021-06-12 17:29:50,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:50,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:50,883 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:50,883 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819199420] [2021-06-12 17:29:50,883 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819199420] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:50,883 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:50,883 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:50,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506474793] [2021-06-12 17:29:50,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:50,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:50,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:50,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:50,883 INFO L87 Difference]: Start difference. First operand 8895 states and 23910 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:51,641 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:51,787 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:51,948 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:52,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:52,079 INFO L93 Difference]: Finished difference Result 18130 states and 47449 transitions. [2021-06-12 17:29:52,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:52,079 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:52,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:52,094 INFO L225 Difference]: With dead ends: 18130 [2021-06-12 17:29:52,095 INFO L226 Difference]: Without dead ends: 18130 [2021-06-12 17:29:52,095 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1082.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:52,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18130 states. [2021-06-12 17:29:52,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18130 to 8927. [2021-06-12 17:29:52,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:52,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-06-12 17:29:52,250 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-06-12 17:29:52,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:52,250 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-06-12 17:29:52,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:52,250 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-06-12 17:29:52,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:52,257 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:52,258 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:52,258 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-06-12 17:29:52,258 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]=== [2021-06-12 17:29:52,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:52,258 INFO L82 PathProgramCache]: Analyzing trace with hash 667159436, now seen corresponding path program 144 times [2021-06-12 17:29:52,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:52,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828037489] [2021-06-12 17:29:52,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:52,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:52,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:52,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828037489] [2021-06-12 17:29:52,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828037489] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:52,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:52,520 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:52,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111056655] [2021-06-12 17:29:52,520 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:52,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:52,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:52,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:52,521 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:53,275 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:53,426 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:29:53,581 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:29:53,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:53,711 INFO L93 Difference]: Finished difference Result 18943 states and 49253 transitions. [2021-06-12 17:29:53,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:53,711 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:53,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:53,727 INFO L225 Difference]: With dead ends: 18943 [2021-06-12 17:29:53,727 INFO L226 Difference]: Without dead ends: 18943 [2021-06-12 17:29:53,727 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1083.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:53,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18943 states. [2021-06-12 17:29:53,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18943 to 8911. [2021-06-12 17:29:53,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8911 states, 8909 states have (on average 2.6889662139409585) internal successors, (23956), 8910 states have internal predecessors, (23956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:53,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8911 states to 8911 states and 23956 transitions. [2021-06-12 17:29:53,868 INFO L78 Accepts]: Start accepts. Automaton has 8911 states and 23956 transitions. Word has length 114 [2021-06-12 17:29:53,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:53,868 INFO L482 AbstractCegarLoop]: Abstraction has 8911 states and 23956 transitions. [2021-06-12 17:29:53,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:53,868 INFO L276 IsEmpty]: Start isEmpty. Operand 8911 states and 23956 transitions. [2021-06-12 17:29:53,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:53,875 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:53,875 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:53,875 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-06-12 17:29:53,875 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]=== [2021-06-12 17:29:53,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:53,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1465022896, now seen corresponding path program 145 times [2021-06-12 17:29:53,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:53,876 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143294750] [2021-06-12 17:29:53,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:54,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:54,181 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:54,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143294750] [2021-06-12 17:29:54,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143294750] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:54,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:54,182 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:54,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933349445] [2021-06-12 17:29:54,182 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:54,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:54,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:54,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:54,182 INFO L87 Difference]: Start difference. First operand 8911 states and 23956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:54,960 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:55,111 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:29:55,275 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:29:55,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:55,415 INFO L93 Difference]: Finished difference Result 18269 states and 47666 transitions. [2021-06-12 17:29:55,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:55,415 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:55,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:55,430 INFO L225 Difference]: With dead ends: 18269 [2021-06-12 17:29:55,430 INFO L226 Difference]: Without dead ends: 18269 [2021-06-12 17:29:55,431 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1122.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:55,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18269 states. [2021-06-12 17:29:55,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18269 to 8927. [2021-06-12 17:29:55,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:55,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-06-12 17:29:55,567 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-06-12 17:29:55,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:55,568 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-06-12 17:29:55,568 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:55,568 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-06-12 17:29:55,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:55,574 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:55,574 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:55,574 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-06-12 17:29:55,574 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]=== [2021-06-12 17:29:55,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:55,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1216475916, now seen corresponding path program 146 times [2021-06-12 17:29:55,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:55,575 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651317370] [2021-06-12 17:29:55,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:55,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:55,833 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:55,833 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651317370] [2021-06-12 17:29:55,833 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651317370] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:55,833 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:55,833 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:55,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832133043] [2021-06-12 17:29:55,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:55,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:55,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:55,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:55,833 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:56,615 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:56,755 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:56,912 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:57,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:57,017 INFO L93 Difference]: Finished difference Result 15334 states and 40192 transitions. [2021-06-12 17:29:57,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:57,017 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:57,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:57,030 INFO L225 Difference]: With dead ends: 15334 [2021-06-12 17:29:57,030 INFO L226 Difference]: Without dead ends: 15334 [2021-06-12 17:29:57,030 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1095.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:57,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15334 states. [2021-06-12 17:29:57,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15334 to 8863. [2021-06-12 17:29:57,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8863 states, 8861 states have (on average 2.6879584696986796) internal successors, (23818), 8862 states have internal predecessors, (23818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:57,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8863 states to 8863 states and 23818 transitions. [2021-06-12 17:29:57,154 INFO L78 Accepts]: Start accepts. Automaton has 8863 states and 23818 transitions. Word has length 114 [2021-06-12 17:29:57,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:57,154 INFO L482 AbstractCegarLoop]: Abstraction has 8863 states and 23818 transitions. [2021-06-12 17:29:57,154 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:57,154 INFO L276 IsEmpty]: Start isEmpty. Operand 8863 states and 23818 transitions. [2021-06-12 17:29:57,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:57,161 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:57,161 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:57,161 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-06-12 17:29:57,161 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]=== [2021-06-12 17:29:57,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:57,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1620430448, now seen corresponding path program 147 times [2021-06-12 17:29:57,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:57,161 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487535154] [2021-06-12 17:29:57,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:57,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:57,418 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:57,418 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487535154] [2021-06-12 17:29:57,418 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487535154] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:57,418 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:57,418 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:57,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934378998] [2021-06-12 17:29:57,418 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:57,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:57,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:57,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:57,418 INFO L87 Difference]: Start difference. First operand 8863 states and 23818 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:58,173 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:58,315 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:29:58,474 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:29:58,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:29:58,631 INFO L93 Difference]: Finished difference Result 18688 states and 48979 transitions. [2021-06-12 17:29:58,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:29:58,631 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:29:58,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:29:58,643 INFO L225 Difference]: With dead ends: 18688 [2021-06-12 17:29:58,644 INFO L226 Difference]: Without dead ends: 18688 [2021-06-12 17:29:58,644 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1068.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:29:58,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18688 states. [2021-06-12 17:29:58,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18688 to 8927. [2021-06-12 17:29:58,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:58,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-06-12 17:29:58,776 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-06-12 17:29:58,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:29:58,776 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-06-12 17:29:58,776 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:58,776 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-06-12 17:29:58,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:29:58,783 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:29:58,783 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:29:58,783 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-06-12 17:29:58,783 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]=== [2021-06-12 17:29:58,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:29:58,783 INFO L82 PathProgramCache]: Analyzing trace with hash 531957262, now seen corresponding path program 148 times [2021-06-12 17:29:58,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:29:58,783 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455040036] [2021-06-12 17:29:58,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:29:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:29:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:29:59,042 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:29:59,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455040036] [2021-06-12 17:29:59,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455040036] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:29:59,042 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:29:59,042 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:29:59,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605342244] [2021-06-12 17:29:59,042 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:29:59,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:29:59,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:29:59,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:29:59,042 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:29:59,793 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:29:59,947 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:30:00,101 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:30:00,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:00,232 INFO L93 Difference]: Finished difference Result 19501 states and 50783 transitions. [2021-06-12 17:30:00,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:00,232 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:00,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:00,249 INFO L225 Difference]: With dead ends: 19501 [2021-06-12 17:30:00,249 INFO L226 Difference]: Without dead ends: 19501 [2021-06-12 17:30:00,249 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1075.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:00,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19501 states. [2021-06-12 17:30:00,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19501 to 8911. [2021-06-12 17:30:00,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8911 states, 8909 states have (on average 2.6889662139409585) internal successors, (23956), 8910 states have internal predecessors, (23956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:00,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8911 states to 8911 states and 23956 transitions. [2021-06-12 17:30:00,398 INFO L78 Accepts]: Start accepts. Automaton has 8911 states and 23956 transitions. Word has length 114 [2021-06-12 17:30:00,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:00,398 INFO L482 AbstractCegarLoop]: Abstraction has 8911 states and 23956 transitions. [2021-06-12 17:30:00,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:00,398 INFO L276 IsEmpty]: Start isEmpty. Operand 8911 states and 23956 transitions. [2021-06-12 17:30:00,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:00,405 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:00,405 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:00,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-06-12 17:30:00,405 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]=== [2021-06-12 17:30:00,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:00,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1329820722, now seen corresponding path program 149 times [2021-06-12 17:30:00,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:00,405 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529595833] [2021-06-12 17:30:00,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:00,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:00,703 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:00,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529595833] [2021-06-12 17:30:00,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529595833] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:00,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:00,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:00,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688629389] [2021-06-12 17:30:00,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:00,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:00,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:00,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:00,704 INFO L87 Difference]: Start difference. First operand 8911 states and 23956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:01,484 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:01,640 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:30:01,802 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:30:01,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:01,962 INFO L93 Difference]: Finished difference Result 22614 states and 58733 transitions. [2021-06-12 17:30:01,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:01,963 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:01,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:01,982 INFO L225 Difference]: With dead ends: 22614 [2021-06-12 17:30:01,982 INFO L226 Difference]: Without dead ends: 22614 [2021-06-12 17:30:01,983 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1087.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:02,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22614 states. [2021-06-12 17:30:02,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22614 to 8927. [2021-06-12 17:30:02,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:02,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-06-12 17:30:02,144 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-06-12 17:30:02,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:02,144 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-06-12 17:30:02,144 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:02,144 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-06-12 17:30:02,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:02,152 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:02,152 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:02,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-06-12 17:30:02,152 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]=== [2021-06-12 17:30:02,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:02,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1081273742, now seen corresponding path program 150 times [2021-06-12 17:30:02,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:02,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929957459] [2021-06-12 17:30:02,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:02,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:02,456 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:02,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929957459] [2021-06-12 17:30:02,456 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929957459] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:02,456 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:02,456 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:02,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344440326] [2021-06-12 17:30:02,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:02,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:02,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:02,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:02,457 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:03,244 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:03,388 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:03,549 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:03,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:03,671 INFO L93 Difference]: Finished difference Result 19679 states and 51259 transitions. [2021-06-12 17:30:03,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:03,671 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:03,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:03,688 INFO L225 Difference]: With dead ends: 19679 [2021-06-12 17:30:03,688 INFO L226 Difference]: Without dead ends: 19679 [2021-06-12 17:30:03,688 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1140.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:03,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19679 states. [2021-06-12 17:30:03,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19679 to 8895. [2021-06-12 17:30:03,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8895 states, 8893 states have (on average 2.6886315079275835) internal successors, (23910), 8894 states have internal predecessors, (23910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:03,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8895 states to 8895 states and 23910 transitions. [2021-06-12 17:30:03,837 INFO L78 Accepts]: Start accepts. Automaton has 8895 states and 23910 transitions. Word has length 114 [2021-06-12 17:30:03,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:03,837 INFO L482 AbstractCegarLoop]: Abstraction has 8895 states and 23910 transitions. [2021-06-12 17:30:03,837 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:03,837 INFO L276 IsEmpty]: Start isEmpty. Operand 8895 states and 23910 transitions. [2021-06-12 17:30:03,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:03,843 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:03,843 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:03,843 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-06-12 17:30:03,844 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]=== [2021-06-12 17:30:03,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:03,844 INFO L82 PathProgramCache]: Analyzing trace with hash 61003436, now seen corresponding path program 151 times [2021-06-12 17:30:03,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:03,844 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147917514] [2021-06-12 17:30:03,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:04,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:04,116 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:04,116 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147917514] [2021-06-12 17:30:04,116 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147917514] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:04,116 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:04,116 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:04,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452648137] [2021-06-12 17:30:04,116 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:04,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:04,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:04,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:04,117 INFO L87 Difference]: Start difference. First operand 8895 states and 23910 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:04,880 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:05,065 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:30:05,237 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:30:05,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:05,374 INFO L93 Difference]: Finished difference Result 18811 states and 49150 transitions. [2021-06-12 17:30:05,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:05,375 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:05,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:05,393 INFO L225 Difference]: With dead ends: 18811 [2021-06-12 17:30:05,394 INFO L226 Difference]: Without dead ends: 18811 [2021-06-12 17:30:05,394 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1146.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:05,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18811 states. [2021-06-12 17:30:05,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18811 to 8943. [2021-06-12 17:30:05,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8943 states, 8941 states have (on average 2.689632032211162) internal successors, (24048), 8942 states have internal predecessors, (24048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:05,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8943 states to 8943 states and 24048 transitions. [2021-06-12 17:30:05,550 INFO L78 Accepts]: Start accepts. Automaton has 8943 states and 24048 transitions. Word has length 114 [2021-06-12 17:30:05,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:05,550 INFO L482 AbstractCegarLoop]: Abstraction has 8943 states and 24048 transitions. [2021-06-12 17:30:05,550 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:05,550 INFO L276 IsEmpty]: Start isEmpty. Operand 8943 states and 24048 transitions. [2021-06-12 17:30:05,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:05,557 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:05,557 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:05,557 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-06-12 17:30:05,557 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]=== [2021-06-12 17:30:05,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:05,557 INFO L82 PathProgramCache]: Analyzing trace with hash -187543544, now seen corresponding path program 152 times [2021-06-12 17:30:05,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:05,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235758691] [2021-06-12 17:30:05,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:05,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:05,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:05,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235758691] [2021-06-12 17:30:05,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235758691] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:05,859 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:05,859 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:05,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442319351] [2021-06-12 17:30:05,859 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:05,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:05,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:05,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:05,859 INFO L87 Difference]: Start difference. First operand 8943 states and 24048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:06,514 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-06-12 17:30:06,657 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:06,806 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:06,970 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:07,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:07,100 INFO L93 Difference]: Finished difference Result 18651 states and 48748 transitions. [2021-06-12 17:30:07,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:07,100 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:07,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:07,116 INFO L225 Difference]: With dead ends: 18651 [2021-06-12 17:30:07,116 INFO L226 Difference]: Without dead ends: 18651 [2021-06-12 17:30:07,117 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1104.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:07,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18651 states. [2021-06-12 17:30:07,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18651 to 8927. [2021-06-12 17:30:07,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8927 states, 8925 states have (on average 2.689299719887955) internal successors, (24002), 8926 states have internal predecessors, (24002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:07,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8927 states to 8927 states and 24002 transitions. [2021-06-12 17:30:07,283 INFO L78 Accepts]: Start accepts. Automaton has 8927 states and 24002 transitions. Word has length 114 [2021-06-12 17:30:07,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:07,283 INFO L482 AbstractCegarLoop]: Abstraction has 8927 states and 24002 transitions. [2021-06-12 17:30:07,283 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:07,283 INFO L276 IsEmpty]: Start isEmpty. Operand 8927 states and 24002 transitions. [2021-06-12 17:30:07,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:07,290 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:07,290 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:07,290 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-06-12 17:30:07,290 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]=== [2021-06-12 17:30:07,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:07,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1344360848, now seen corresponding path program 153 times [2021-06-12 17:30:07,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:07,290 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148832130] [2021-06-12 17:30:07,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:07,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:07,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:07,562 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148832130] [2021-06-12 17:30:07,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148832130] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:07,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:07,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:07,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954058049] [2021-06-12 17:30:07,563 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:07,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:07,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:07,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:07,563 INFO L87 Difference]: Start difference. First operand 8927 states and 24002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:08,480 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:08,644 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:08,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:08,762 INFO L93 Difference]: Finished difference Result 15802 states and 41488 transitions. [2021-06-12 17:30:08,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:08,762 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:08,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:08,776 INFO L225 Difference]: With dead ends: 15802 [2021-06-12 17:30:08,776 INFO L226 Difference]: Without dead ends: 15802 [2021-06-12 17:30:08,776 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1079.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:08,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15802 states. [2021-06-12 17:30:08,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15802 to 8799. [2021-06-12 17:30:08,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8799 states, 8797 states have (on average 2.6865977037626463) internal successors, (23634), 8798 states have internal predecessors, (23634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:08,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8799 states to 8799 states and 23634 transitions. [2021-06-12 17:30:08,900 INFO L78 Accepts]: Start accepts. Automaton has 8799 states and 23634 transitions. Word has length 114 [2021-06-12 17:30:08,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:08,901 INFO L482 AbstractCegarLoop]: Abstraction has 8799 states and 23634 transitions. [2021-06-12 17:30:08,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:08,901 INFO L276 IsEmpty]: Start isEmpty. Operand 8799 states and 23634 transitions. [2021-06-12 17:30:08,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:08,908 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:08,908 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:08,908 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-06-12 17:30:08,908 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]=== [2021-06-12 17:30:08,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:08,908 INFO L82 PathProgramCache]: Analyzing trace with hash -202875694, now seen corresponding path program 154 times [2021-06-12 17:30:08,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:08,908 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3198037] [2021-06-12 17:30:08,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:09,166 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:09,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3198037] [2021-06-12 17:30:09,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3198037] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:09,166 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:09,166 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:09,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030046174] [2021-06-12 17:30:09,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:09,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:09,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:09,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:09,167 INFO L87 Difference]: Start difference. First operand 8799 states and 23634 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:09,943 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:10,086 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:10,245 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:10,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:10,358 INFO L93 Difference]: Finished difference Result 13786 states and 36347 transitions. [2021-06-12 17:30:10,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:10,358 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:10,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:10,370 INFO L225 Difference]: With dead ends: 13786 [2021-06-12 17:30:10,370 INFO L226 Difference]: Without dead ends: 13786 [2021-06-12 17:30:10,371 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1082.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:10,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13786 states. [2021-06-12 17:30:10,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13786 to 8877. [2021-06-12 17:30:10,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:10,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-12 17:30:10,487 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-12 17:30:10,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:10,487 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-12 17:30:10,487 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:10,487 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-12 17:30:10,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:10,494 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:10,494 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:10,494 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-06-12 17:30:10,494 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]=== [2021-06-12 17:30:10,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:10,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1291348880, now seen corresponding path program 155 times [2021-06-12 17:30:10,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:10,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554304798] [2021-06-12 17:30:10,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:10,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:10,756 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:10,756 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554304798] [2021-06-12 17:30:10,756 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554304798] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:10,756 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:10,756 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:10,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739386837] [2021-06-12 17:30:10,756 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:10,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:10,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:10,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:10,756 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:11,535 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:11,713 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:30:11,873 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:30:12,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:12,004 INFO L93 Difference]: Finished difference Result 14599 states and 38151 transitions. [2021-06-12 17:30:12,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:12,005 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:12,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:12,017 INFO L225 Difference]: With dead ends: 14599 [2021-06-12 17:30:12,017 INFO L226 Difference]: Without dead ends: 14599 [2021-06-12 17:30:12,017 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1116.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:12,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14599 states. [2021-06-12 17:30:12,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14599 to 8861. [2021-06-12 17:30:12,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8859 states have (on average 2.68800090303646) internal successors, (23813), 8860 states have internal predecessors, (23813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:12,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 23813 transitions. [2021-06-12 17:30:12,137 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 23813 transitions. Word has length 114 [2021-06-12 17:30:12,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:12,137 INFO L482 AbstractCegarLoop]: Abstraction has 8861 states and 23813 transitions. [2021-06-12 17:30:12,138 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:12,138 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 23813 transitions. [2021-06-12 17:30:12,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:12,144 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:12,144 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:12,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-06-12 17:30:12,144 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]=== [2021-06-12 17:30:12,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:12,144 INFO L82 PathProgramCache]: Analyzing trace with hash -493485420, now seen corresponding path program 156 times [2021-06-12 17:30:12,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:12,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530078578] [2021-06-12 17:30:12,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:12,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:12,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:12,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530078578] [2021-06-12 17:30:12,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530078578] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:12,408 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:12,408 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:12,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864468451] [2021-06-12 17:30:12,408 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:12,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:12,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:12,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:12,409 INFO L87 Difference]: Start difference. First operand 8861 states and 23813 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:13,195 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:13,349 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:30:13,512 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:30:13,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:13,657 INFO L93 Difference]: Finished difference Result 17712 states and 46101 transitions. [2021-06-12 17:30:13,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:13,658 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:13,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:13,673 INFO L225 Difference]: With dead ends: 17712 [2021-06-12 17:30:13,673 INFO L226 Difference]: Without dead ends: 17712 [2021-06-12 17:30:13,674 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1102.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:13,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17712 states. [2021-06-12 17:30:13,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17712 to 8877. [2021-06-12 17:30:13,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:13,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-12 17:30:13,845 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-12 17:30:13,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:13,845 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-12 17:30:13,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:13,845 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-12 17:30:13,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:13,851 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:13,851 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:13,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-06-12 17:30:13,852 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]=== [2021-06-12 17:30:13,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:13,852 INFO L82 PathProgramCache]: Analyzing trace with hash -742032400, now seen corresponding path program 157 times [2021-06-12 17:30:13,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:13,852 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667993016] [2021-06-12 17:30:13,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:14,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:14,110 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:14,111 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667993016] [2021-06-12 17:30:14,111 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667993016] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:14,111 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:14,111 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:14,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677028213] [2021-06-12 17:30:14,111 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:14,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:14,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:14,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:14,111 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:14,877 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:15,020 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:15,182 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:15,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:15,291 INFO L93 Difference]: Finished difference Result 14777 states and 38627 transitions. [2021-06-12 17:30:15,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:15,292 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:15,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:15,304 INFO L225 Difference]: With dead ends: 14777 [2021-06-12 17:30:15,304 INFO L226 Difference]: Without dead ends: 14777 [2021-06-12 17:30:15,304 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1093.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:15,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14777 states. [2021-06-12 17:30:15,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14777 to 8845. [2021-06-12 17:30:15,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 8843 states have (on average 2.687662557955445) internal successors, (23767), 8844 states have internal predecessors, (23767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:15,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 23767 transitions. [2021-06-12 17:30:15,423 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 23767 transitions. Word has length 114 [2021-06-12 17:30:15,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:15,423 INFO L482 AbstractCegarLoop]: Abstraction has 8845 states and 23767 transitions. [2021-06-12 17:30:15,423 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:15,424 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 23767 transitions. [2021-06-12 17:30:15,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:15,430 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:15,430 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:15,430 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-06-12 17:30:15,430 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]=== [2021-06-12 17:30:15,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:15,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1762302706, now seen corresponding path program 158 times [2021-06-12 17:30:15,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:15,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146146337] [2021-06-12 17:30:15,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:15,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:15,707 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:15,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146146337] [2021-06-12 17:30:15,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146146337] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:15,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:15,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:15,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829171979] [2021-06-12 17:30:15,707 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:15,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:15,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:15,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:15,707 INFO L87 Difference]: Start difference. First operand 8845 states and 23767 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:16,493 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:16,646 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:30:16,811 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:30:16,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:16,938 INFO L93 Difference]: Finished difference Result 18222 states and 47493 transitions. [2021-06-12 17:30:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:16,938 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:16,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:16,956 INFO L225 Difference]: With dead ends: 18222 [2021-06-12 17:30:16,956 INFO L226 Difference]: Without dead ends: 18222 [2021-06-12 17:30:16,956 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1139.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:16,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18222 states. [2021-06-12 17:30:17,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18222 to 8893. [2021-06-12 17:30:17,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8893 states, 8891 states have (on average 2.6886739399392643) internal successors, (23905), 8892 states have internal predecessors, (23905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:17,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8893 states to 8893 states and 23905 transitions. [2021-06-12 17:30:17,099 INFO L78 Accepts]: Start accepts. Automaton has 8893 states and 23905 transitions. Word has length 114 [2021-06-12 17:30:17,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:17,099 INFO L482 AbstractCegarLoop]: Abstraction has 8893 states and 23905 transitions. [2021-06-12 17:30:17,099 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:17,099 INFO L276 IsEmpty]: Start isEmpty. Operand 8893 states and 23905 transitions. [2021-06-12 17:30:17,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:17,106 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:17,106 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:17,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-06-12 17:30:17,106 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]=== [2021-06-12 17:30:17,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:17,106 INFO L82 PathProgramCache]: Analyzing trace with hash -2010849686, now seen corresponding path program 159 times [2021-06-12 17:30:17,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:17,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132383738] [2021-06-12 17:30:17,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:17,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:17,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:17,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132383738] [2021-06-12 17:30:17,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132383738] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:17,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:17,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:17,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658125001] [2021-06-12 17:30:17,381 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:17,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:17,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:17,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:17,382 INFO L87 Difference]: Start difference. First operand 8893 states and 23905 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:18,168 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:18,340 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:18,503 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:18,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:18,635 INFO L93 Difference]: Finished difference Result 18062 states and 47091 transitions. [2021-06-12 17:30:18,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:18,635 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:18,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:18,650 INFO L225 Difference]: With dead ends: 18062 [2021-06-12 17:30:18,650 INFO L226 Difference]: Without dead ends: 18062 [2021-06-12 17:30:18,650 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1129.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:18,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18062 states. [2021-06-12 17:30:18,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18062 to 8877. [2021-06-12 17:30:18,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8877 states, 8875 states have (on average 2.688338028169014) internal successors, (23859), 8876 states have internal predecessors, (23859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:18,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 23859 transitions. [2021-06-12 17:30:18,791 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 23859 transitions. Word has length 114 [2021-06-12 17:30:18,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:18,791 INFO L482 AbstractCegarLoop]: Abstraction has 8877 states and 23859 transitions. [2021-06-12 17:30:18,791 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:18,791 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 23859 transitions. [2021-06-12 17:30:18,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:18,798 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:18,798 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:18,798 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-06-12 17:30:18,798 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]=== [2021-06-12 17:30:18,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:18,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1127300306, now seen corresponding path program 160 times [2021-06-12 17:30:18,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:18,799 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291891332] [2021-06-12 17:30:18,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:19,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:19,071 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:19,071 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291891332] [2021-06-12 17:30:19,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291891332] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:19,071 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:19,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:19,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838741582] [2021-06-12 17:30:19,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:19,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:19,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:19,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:19,072 INFO L87 Difference]: Start difference. First operand 8877 states and 23859 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:19,967 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:20,128 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:20,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:20,242 INFO L93 Difference]: Finished difference Result 15213 states and 39831 transitions. [2021-06-12 17:30:20,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:20,242 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:20,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:20,255 INFO L225 Difference]: With dead ends: 15213 [2021-06-12 17:30:20,255 INFO L226 Difference]: Without dead ends: 15213 [2021-06-12 17:30:20,255 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1082.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:20,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15213 states. [2021-06-12 17:30:20,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15213 to 8813. [2021-06-12 17:30:20,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8813 states, 8811 states have (on average 2.6869821813642036) internal successors, (23675), 8812 states have internal predecessors, (23675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:20,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8813 states to 8813 states and 23675 transitions. [2021-06-12 17:30:20,421 INFO L78 Accepts]: Start accepts. Automaton has 8813 states and 23675 transitions. Word has length 114 [2021-06-12 17:30:20,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:20,421 INFO L482 AbstractCegarLoop]: Abstraction has 8813 states and 23675 transitions. [2021-06-12 17:30:20,421 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:20,421 INFO L276 IsEmpty]: Start isEmpty. Operand 8813 states and 23675 transitions. [2021-06-12 17:30:20,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:20,428 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:20,428 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:20,428 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-06-12 17:30:20,428 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]=== [2021-06-12 17:30:20,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:20,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1357943124, now seen corresponding path program 161 times [2021-06-12 17:30:20,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:20,429 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647499580] [2021-06-12 17:30:20,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:20,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:20,715 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:20,715 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647499580] [2021-06-12 17:30:20,715 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647499580] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:20,715 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:20,715 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:20,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464842673] [2021-06-12 17:30:20,715 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:20,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:20,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:20,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:20,715 INFO L87 Difference]: Start difference. First operand 8813 states and 23675 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:21,468 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:21,621 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:30:21,785 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:30:21,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:21,901 INFO L93 Difference]: Finished difference Result 13877 states and 36426 transitions. [2021-06-12 17:30:21,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:21,902 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:21,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:21,914 INFO L225 Difference]: With dead ends: 13877 [2021-06-12 17:30:21,914 INFO L226 Difference]: Without dead ends: 13877 [2021-06-12 17:30:21,914 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1115.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:21,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13877 states. [2021-06-12 17:30:22,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13877 to 8875. [2021-06-12 17:30:22,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8875 states, 8873 states have (on average 2.688380480108193) internal successors, (23854), 8874 states have internal predecessors, (23854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:22,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8875 states to 8875 states and 23854 transitions. [2021-06-12 17:30:22,033 INFO L78 Accepts]: Start accepts. Automaton has 8875 states and 23854 transitions. Word has length 114 [2021-06-12 17:30:22,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:22,033 INFO L482 AbstractCegarLoop]: Abstraction has 8875 states and 23854 transitions. [2021-06-12 17:30:22,033 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:22,034 INFO L276 IsEmpty]: Start isEmpty. Operand 8875 states and 23854 transitions. [2021-06-12 17:30:22,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:22,040 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:22,040 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:22,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-06-12 17:30:22,040 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]=== [2021-06-12 17:30:22,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:22,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1606490104, now seen corresponding path program 162 times [2021-06-12 17:30:22,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:22,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729732744] [2021-06-12 17:30:22,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:22,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:22,323 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:22,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729732744] [2021-06-12 17:30:22,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729732744] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:22,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:22,323 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:22,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173292850] [2021-06-12 17:30:22,323 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:22,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:22,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:22,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:22,323 INFO L87 Difference]: Start difference. First operand 8875 states and 23854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:23,113 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:23,259 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:23,419 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:23,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:23,526 INFO L93 Difference]: Finished difference Result 13717 states and 36024 transitions. [2021-06-12 17:30:23,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:23,526 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:23,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:23,537 INFO L225 Difference]: With dead ends: 13717 [2021-06-12 17:30:23,538 INFO L226 Difference]: Without dead ends: 13717 [2021-06-12 17:30:23,538 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1130.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:23,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13717 states. [2021-06-12 17:30:23,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13717 to 8859. [2021-06-12 17:30:23,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8859 states, 8857 states have (on average 2.6880433555379923) internal successors, (23808), 8858 states have internal predecessors, (23808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:23,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8859 states to 8859 states and 23808 transitions. [2021-06-12 17:30:23,654 INFO L78 Accepts]: Start accepts. Automaton has 8859 states and 23808 transitions. Word has length 114 [2021-06-12 17:30:23,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:23,655 INFO L482 AbstractCegarLoop]: Abstraction has 8859 states and 23808 transitions. [2021-06-12 17:30:23,655 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:23,655 INFO L276 IsEmpty]: Start isEmpty. Operand 8859 states and 23808 transitions. [2021-06-12 17:30:23,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:23,661 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:23,661 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:23,661 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-06-12 17:30:23,661 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]=== [2021-06-12 17:30:23,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:23,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1531659888, now seen corresponding path program 163 times [2021-06-12 17:30:23,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:23,662 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596226188] [2021-06-12 17:30:23,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:23,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:23,945 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:23,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596226188] [2021-06-12 17:30:23,945 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596226188] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:23,945 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:23,945 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:23,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614010765] [2021-06-12 17:30:23,946 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:23,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:23,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:23,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:23,946 INFO L87 Difference]: Start difference. First operand 8859 states and 23808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:24,867 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:25,051 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:25,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:25,167 INFO L93 Difference]: Finished difference Result 14005 states and 36852 transitions. [2021-06-12 17:30:25,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:25,168 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:25,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:25,179 INFO L225 Difference]: With dead ends: 14005 [2021-06-12 17:30:25,180 INFO L226 Difference]: Without dead ends: 14005 [2021-06-12 17:30:25,180 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1097.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:25,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14005 states. [2021-06-12 17:30:25,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14005 to 8827. [2021-06-12 17:30:25,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8827 states, 8825 states have (on average 2.6873654390934845) internal successors, (23716), 8826 states have internal predecessors, (23716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:25,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8827 states to 8827 states and 23716 transitions. [2021-06-12 17:30:25,296 INFO L78 Accepts]: Start accepts. Automaton has 8827 states and 23716 transitions. Word has length 114 [2021-06-12 17:30:25,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:25,296 INFO L482 AbstractCegarLoop]: Abstraction has 8827 states and 23716 transitions. [2021-06-12 17:30:25,296 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:25,296 INFO L276 IsEmpty]: Start isEmpty. Operand 8827 states and 23716 transitions. [2021-06-12 17:30:25,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:25,303 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:25,303 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:25,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-06-12 17:30:25,303 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]=== [2021-06-12 17:30:25,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:25,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1055124270, now seen corresponding path program 164 times [2021-06-12 17:30:25,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:25,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876665240] [2021-06-12 17:30:25,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:25,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:25,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:25,586 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:25,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876665240] [2021-06-12 17:30:25,586 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876665240] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:25,586 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:25,586 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:25,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431790348] [2021-06-12 17:30:25,586 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:25,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:25,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:25,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:25,586 INFO L87 Difference]: Start difference. First operand 8827 states and 23716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:26,504 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:26,669 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:26,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:26,774 INFO L93 Difference]: Finished difference Result 10720 states and 28388 transitions. [2021-06-12 17:30:26,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:26,774 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:26,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:26,783 INFO L225 Difference]: With dead ends: 10720 [2021-06-12 17:30:26,783 INFO L226 Difference]: Without dead ends: 10720 [2021-06-12 17:30:26,783 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1098.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:26,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10720 states. [2021-06-12 17:30:26,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10720 to 8911. [2021-06-12 17:30:26,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8911 states, 8909 states have (on average 2.6896396902009205) internal successors, (23962), 8910 states have internal predecessors, (23962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:26,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8911 states to 8911 states and 23962 transitions. [2021-06-12 17:30:26,881 INFO L78 Accepts]: Start accepts. Automaton has 8911 states and 23962 transitions. Word has length 114 [2021-06-12 17:30:26,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:26,881 INFO L482 AbstractCegarLoop]: Abstraction has 8911 states and 23962 transitions. [2021-06-12 17:30:26,882 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:26,882 INFO L276 IsEmpty]: Start isEmpty. Operand 8911 states and 23962 transitions. [2021-06-12 17:30:26,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:26,888 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:26,888 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:26,888 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-06-12 17:30:26,888 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]=== [2021-06-12 17:30:26,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:26,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1550834720, now seen corresponding path program 4 times [2021-06-12 17:30:26,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:26,889 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92933027] [2021-06-12 17:30:26,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:27,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:27,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:27,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92933027] [2021-06-12 17:30:27,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92933027] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:27,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:27,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-12 17:30:27,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265298940] [2021-06-12 17:30:27,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-12 17:30:27,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:27,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-12 17:30:27,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2021-06-12 17:30:27,397 INFO L87 Difference]: Start difference. First operand 8911 states and 23962 transitions. Second operand has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:31,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:31,441 INFO L93 Difference]: Finished difference Result 13036 states and 34514 transitions. [2021-06-12 17:30:31,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-06-12 17:30:31,442 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:31,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:31,452 INFO L225 Difference]: With dead ends: 13036 [2021-06-12 17:30:31,452 INFO L226 Difference]: Without dead ends: 12923 [2021-06-12 17:30:31,453 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1205 ImplicationChecksByTransitivity, 2646.9ms TimeCoverageRelationStatistics Valid=1424, Invalid=4896, Unknown=0, NotChecked=0, Total=6320 [2021-06-12 17:30:31,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12923 states. [2021-06-12 17:30:31,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12923 to 10256. [2021-06-12 17:30:31,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10256 states, 10254 states have (on average 2.68860932319095) internal successors, (27569), 10255 states have internal predecessors, (27569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:31,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10256 states to 10256 states and 27569 transitions. [2021-06-12 17:30:31,572 INFO L78 Accepts]: Start accepts. Automaton has 10256 states and 27569 transitions. Word has length 114 [2021-06-12 17:30:31,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:31,572 INFO L482 AbstractCegarLoop]: Abstraction has 10256 states and 27569 transitions. [2021-06-12 17:30:31,572 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.384615384615385) internal successors, (114), 26 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:31,572 INFO L276 IsEmpty]: Start isEmpty. Operand 10256 states and 27569 transitions. [2021-06-12 17:30:31,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:31,580 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:31,580 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:31,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-06-12 17:30:31,581 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]=== [2021-06-12 17:30:31,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:31,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1940765848, now seen corresponding path program 165 times [2021-06-12 17:30:31,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:31,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405298617] [2021-06-12 17:30:31,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:31,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:31,839 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:31,839 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405298617] [2021-06-12 17:30:31,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405298617] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:31,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:31,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 17:30:31,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707108377] [2021-06-12 17:30:31,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 17:30:31,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:31,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 17:30:31,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:30:31,839 INFO L87 Difference]: Start difference. First operand 10256 states and 27569 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:32,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:32,758 INFO L93 Difference]: Finished difference Result 11823 states and 30921 transitions. [2021-06-12 17:30:32,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-12 17:30:32,759 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:32,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:32,767 INFO L225 Difference]: With dead ends: 11823 [2021-06-12 17:30:32,767 INFO L226 Difference]: Without dead ends: 11823 [2021-06-12 17:30:32,767 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 803.0ms TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2021-06-12 17:30:32,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11823 states. [2021-06-12 17:30:32,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11823 to 10021. [2021-06-12 17:30:32,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10021 states, 10019 states have (on average 2.697874039325282) internal successors, (27030), 10020 states have internal predecessors, (27030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:32,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10021 states to 10021 states and 27030 transitions. [2021-06-12 17:30:32,886 INFO L78 Accepts]: Start accepts. Automaton has 10021 states and 27030 transitions. Word has length 114 [2021-06-12 17:30:32,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:32,886 INFO L482 AbstractCegarLoop]: Abstraction has 10021 states and 27030 transitions. [2021-06-12 17:30:32,886 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:32,886 INFO L276 IsEmpty]: Start isEmpty. Operand 10021 states and 27030 transitions. [2021-06-12 17:30:32,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:32,894 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:32,894 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:32,894 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-06-12 17:30:32,894 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]=== [2021-06-12 17:30:32,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:32,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1331760138, now seen corresponding path program 166 times [2021-06-12 17:30:32,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:32,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843770428] [2021-06-12 17:30:32,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:33,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:33,173 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:33,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843770428] [2021-06-12 17:30:33,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843770428] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:33,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:33,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:33,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374677833] [2021-06-12 17:30:33,173 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:33,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:33,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:33,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:33,174 INFO L87 Difference]: Start difference. First operand 10021 states and 27030 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:34,085 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:34,249 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:34,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:34,396 INFO L93 Difference]: Finished difference Result 24288 states and 64469 transitions. [2021-06-12 17:30:34,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:34,396 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:34,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:34,417 INFO L225 Difference]: With dead ends: 24288 [2021-06-12 17:30:34,417 INFO L226 Difference]: Without dead ends: 24288 [2021-06-12 17:30:34,418 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1096.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:34,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24288 states. [2021-06-12 17:30:34,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24288 to 10133. [2021-06-12 17:30:34,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10133 states, 10131 states have (on average 2.699832198203534) internal successors, (27352), 10132 states have internal predecessors, (27352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:34,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10133 states to 10133 states and 27352 transitions. [2021-06-12 17:30:34,655 INFO L78 Accepts]: Start accepts. Automaton has 10133 states and 27352 transitions. Word has length 114 [2021-06-12 17:30:34,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:34,655 INFO L482 AbstractCegarLoop]: Abstraction has 10133 states and 27352 transitions. [2021-06-12 17:30:34,655 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:34,655 INFO L276 IsEmpty]: Start isEmpty. Operand 10133 states and 27352 transitions. [2021-06-12 17:30:34,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:34,662 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:34,663 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:34,663 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-06-12 17:30:34,663 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]=== [2021-06-12 17:30:34,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:34,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1049970422, now seen corresponding path program 167 times [2021-06-12 17:30:34,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:34,663 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298578230] [2021-06-12 17:30:34,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:34,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:34,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:34,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298578230] [2021-06-12 17:30:34,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298578230] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:34,937 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:34,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:34,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728588722] [2021-06-12 17:30:34,937 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:34,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:34,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:34,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:34,938 INFO L87 Difference]: Start difference. First operand 10133 states and 27352 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:35,734 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:35,876 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:36,041 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:36,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:36,201 INFO L93 Difference]: Finished difference Result 26816 states and 71018 transitions. [2021-06-12 17:30:36,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:36,201 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:36,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:36,226 INFO L225 Difference]: With dead ends: 26816 [2021-06-12 17:30:36,226 INFO L226 Difference]: Without dead ends: 26816 [2021-06-12 17:30:36,226 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1100.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:36,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26816 states. [2021-06-12 17:30:36,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26816 to 10149. [2021-06-12 17:30:36,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10149 states, 10147 states have (on average 2.7001084064255445) internal successors, (27398), 10148 states have internal predecessors, (27398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:36,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10149 states to 10149 states and 27398 transitions. [2021-06-12 17:30:36,425 INFO L78 Accepts]: Start accepts. Automaton has 10149 states and 27398 transitions. Word has length 114 [2021-06-12 17:30:36,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:36,425 INFO L482 AbstractCegarLoop]: Abstraction has 10149 states and 27398 transitions. [2021-06-12 17:30:36,425 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:36,425 INFO L276 IsEmpty]: Start isEmpty. Operand 10149 states and 27398 transitions. [2021-06-12 17:30:36,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:36,433 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:36,433 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:36,433 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-06-12 17:30:36,433 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]=== [2021-06-12 17:30:36,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:36,433 INFO L82 PathProgramCache]: Analyzing trace with hash -2138443608, now seen corresponding path program 168 times [2021-06-12 17:30:36,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:36,433 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346399520] [2021-06-12 17:30:36,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:36,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:36,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:36,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346399520] [2021-06-12 17:30:36,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346399520] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:36,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:36,754 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:36,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768567290] [2021-06-12 17:30:36,755 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:36,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:36,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:36,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:36,755 INFO L87 Difference]: Start difference. First operand 10149 states and 27398 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:37,554 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:37,712 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:30:37,878 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:30:38,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:38,041 INFO L93 Difference]: Finished difference Result 25156 states and 66418 transitions. [2021-06-12 17:30:38,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:38,041 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:38,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:38,065 INFO L225 Difference]: With dead ends: 25156 [2021-06-12 17:30:38,065 INFO L226 Difference]: Without dead ends: 25156 [2021-06-12 17:30:38,065 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1160.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:38,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25156 states. [2021-06-12 17:30:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25156 to 10121. [2021-06-12 17:30:38,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10121 states, 10119 states have (on average 2.6976974009289454) internal successors, (27298), 10120 states have internal predecessors, (27298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:38,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10121 states to 10121 states and 27298 transitions. [2021-06-12 17:30:38,261 INFO L78 Accepts]: Start accepts. Automaton has 10121 states and 27298 transitions. Word has length 114 [2021-06-12 17:30:38,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:38,261 INFO L482 AbstractCegarLoop]: Abstraction has 10121 states and 27298 transitions. [2021-06-12 17:30:38,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:38,262 INFO L276 IsEmpty]: Start isEmpty. Operand 10121 states and 27298 transitions. [2021-06-12 17:30:38,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:38,269 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:38,269 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:38,269 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-06-12 17:30:38,269 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]=== [2021-06-12 17:30:38,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:38,270 INFO L82 PathProgramCache]: Analyzing trace with hash -728223798, now seen corresponding path program 169 times [2021-06-12 17:30:38,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:38,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057421439] [2021-06-12 17:30:38,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:38,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:38,535 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:38,535 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057421439] [2021-06-12 17:30:38,535 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057421439] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:38,535 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:38,535 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:38,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799050499] [2021-06-12 17:30:38,536 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:38,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:38,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:38,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:38,536 INFO L87 Difference]: Start difference. First operand 10121 states and 27298 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:39,365 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:39,509 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:39,671 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:39,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:39,823 INFO L93 Difference]: Finished difference Result 24394 states and 64635 transitions. [2021-06-12 17:30:39,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:39,823 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:39,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:39,844 INFO L225 Difference]: With dead ends: 24394 [2021-06-12 17:30:39,844 INFO L226 Difference]: Without dead ends: 24394 [2021-06-12 17:30:39,845 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1129.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:39,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24394 states. [2021-06-12 17:30:40,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24394 to 10153. [2021-06-12 17:30:40,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10153 states, 10151 states have (on average 2.6982563294256723) internal successors, (27390), 10152 states have internal predecessors, (27390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:40,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10153 states to 10153 states and 27390 transitions. [2021-06-12 17:30:40,030 INFO L78 Accepts]: Start accepts. Automaton has 10153 states and 27390 transitions. Word has length 114 [2021-06-12 17:30:40,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:40,030 INFO L482 AbstractCegarLoop]: Abstraction has 10153 states and 27390 transitions. [2021-06-12 17:30:40,030 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:40,030 INFO L276 IsEmpty]: Start isEmpty. Operand 10153 states and 27390 transitions. [2021-06-12 17:30:40,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:40,037 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:40,038 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:40,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-06-12 17:30:40,038 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]=== [2021-06-12 17:30:40,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:40,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1816696984, now seen corresponding path program 170 times [2021-06-12 17:30:40,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:40,038 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419924566] [2021-06-12 17:30:40,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:40,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:40,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:40,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419924566] [2021-06-12 17:30:40,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419924566] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:40,304 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:40,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:40,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242766193] [2021-06-12 17:30:40,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:40,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:40,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:40,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:40,304 INFO L87 Difference]: Start difference. First operand 10153 states and 27390 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:41,089 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:41,297 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:30:41,456 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:30:41,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:41,616 INFO L93 Difference]: Finished difference Result 25207 states and 66439 transitions. [2021-06-12 17:30:41,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:41,616 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:41,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:41,638 INFO L225 Difference]: With dead ends: 25207 [2021-06-12 17:30:41,638 INFO L226 Difference]: Without dead ends: 25207 [2021-06-12 17:30:41,639 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1097.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:41,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25207 states. [2021-06-12 17:30:41,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25207 to 10137. [2021-06-12 17:30:41,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10137 states, 10135 states have (on average 2.697977306364085) internal successors, (27344), 10136 states have internal predecessors, (27344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:41,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10137 states to 10137 states and 27344 transitions. [2021-06-12 17:30:41,826 INFO L78 Accepts]: Start accepts. Automaton has 10137 states and 27344 transitions. Word has length 114 [2021-06-12 17:30:41,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:41,826 INFO L482 AbstractCegarLoop]: Abstraction has 10137 states and 27344 transitions. [2021-06-12 17:30:41,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:41,826 INFO L276 IsEmpty]: Start isEmpty. Operand 10137 states and 27344 transitions. [2021-06-12 17:30:41,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:41,834 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:41,834 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:41,834 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-06-12 17:30:41,834 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]=== [2021-06-12 17:30:41,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:41,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1018833524, now seen corresponding path program 171 times [2021-06-12 17:30:41,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:41,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111875178] [2021-06-12 17:30:41,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:42,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:42,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:42,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111875178] [2021-06-12 17:30:42,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111875178] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:42,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:42,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:42,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808974519] [2021-06-12 17:30:42,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:42,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:42,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:42,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:42,114 INFO L87 Difference]: Start difference. First operand 10137 states and 27344 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:42,873 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:43,021 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:30:43,179 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:30:43,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:43,363 INFO L93 Difference]: Finished difference Result 24533 states and 64852 transitions. [2021-06-12 17:30:43,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:43,363 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:43,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:43,381 INFO L225 Difference]: With dead ends: 24533 [2021-06-12 17:30:43,381 INFO L226 Difference]: Without dead ends: 24533 [2021-06-12 17:30:43,382 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1105.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:43,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24533 states. [2021-06-12 17:30:43,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24533 to 10153. [2021-06-12 17:30:43,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10153 states, 10151 states have (on average 2.6982563294256723) internal successors, (27390), 10152 states have internal predecessors, (27390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:43,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10153 states to 10153 states and 27390 transitions. [2021-06-12 17:30:43,551 INFO L78 Accepts]: Start accepts. Automaton has 10153 states and 27390 transitions. Word has length 114 [2021-06-12 17:30:43,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:43,551 INFO L482 AbstractCegarLoop]: Abstraction has 10153 states and 27390 transitions. [2021-06-12 17:30:43,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:43,551 INFO L276 IsEmpty]: Start isEmpty. Operand 10153 states and 27390 transitions. [2021-06-12 17:30:43,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:43,559 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:43,559 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:43,559 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-06-12 17:30:43,559 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]=== [2021-06-12 17:30:43,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:43,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1267380504, now seen corresponding path program 172 times [2021-06-12 17:30:43,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:43,560 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449070609] [2021-06-12 17:30:43,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:43,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:43,824 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:43,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449070609] [2021-06-12 17:30:43,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449070609] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:43,824 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:43,824 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:43,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664201842] [2021-06-12 17:30:43,824 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:43,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:43,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:43,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:43,825 INFO L87 Difference]: Start difference. First operand 10153 states and 27390 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:44,606 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:44,749 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:44,910 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:45,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:45,052 INFO L93 Difference]: Finished difference Result 21880 states and 58092 transitions. [2021-06-12 17:30:45,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:45,052 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:45,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:45,070 INFO L225 Difference]: With dead ends: 21880 [2021-06-12 17:30:45,071 INFO L226 Difference]: Without dead ends: 21880 [2021-06-12 17:30:45,071 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1084.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:45,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21880 states. [2021-06-12 17:30:45,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21880 to 10109. [2021-06-12 17:30:45,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6967448303156227) internal successors, (27256), 10108 states have internal predecessors, (27256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:45,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27256 transitions. [2021-06-12 17:30:45,295 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27256 transitions. Word has length 114 [2021-06-12 17:30:45,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:45,296 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27256 transitions. [2021-06-12 17:30:45,296 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:45,296 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27256 transitions. [2021-06-12 17:30:45,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:45,303 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:45,303 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:45,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-06-12 17:30:45,303 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]=== [2021-06-12 17:30:45,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:45,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1237081900, now seen corresponding path program 173 times [2021-06-12 17:30:45,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:45,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371632821] [2021-06-12 17:30:45,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:45,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:45,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:45,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371632821] [2021-06-12 17:30:45,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371632821] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:45,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:45,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:45,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594952546] [2021-06-12 17:30:45,588 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:45,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:45,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:45,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:45,589 INFO L87 Difference]: Start difference. First operand 10109 states and 27256 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:46,498 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:46,662 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:46,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:46,812 INFO L93 Difference]: Finished difference Result 23016 states and 61384 transitions. [2021-06-12 17:30:46,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:46,813 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:46,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:46,833 INFO L225 Difference]: With dead ends: 23016 [2021-06-12 17:30:46,834 INFO L226 Difference]: Without dead ends: 23016 [2021-06-12 17:30:46,834 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1092.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:46,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23016 states. [2021-06-12 17:30:46,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23016 to 10157. [2021-06-12 17:30:46,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.697587395371738) internal successors, (27394), 10156 states have internal predecessors, (27394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:47,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27394 transitions. [2021-06-12 17:30:47,005 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27394 transitions. Word has length 114 [2021-06-12 17:30:47,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:47,005 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27394 transitions. [2021-06-12 17:30:47,005 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:47,005 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27394 transitions. [2021-06-12 17:30:47,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:47,013 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:47,013 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:47,013 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-06-12 17:30:47,013 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]=== [2021-06-12 17:30:47,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:47,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1144648660, now seen corresponding path program 174 times [2021-06-12 17:30:47,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:47,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157324005] [2021-06-12 17:30:47,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:47,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:47,348 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:47,348 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157324005] [2021-06-12 17:30:47,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157324005] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:47,348 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:47,348 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:47,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312475496] [2021-06-12 17:30:47,348 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:47,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:47,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:47,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:47,349 INFO L87 Difference]: Start difference. First operand 10157 states and 27394 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:48,130 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:48,274 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:48,437 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:48,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:48,585 INFO L93 Difference]: Finished difference Result 23088 states and 61516 transitions. [2021-06-12 17:30:48,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:48,586 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:48,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:48,607 INFO L225 Difference]: With dead ends: 23088 [2021-06-12 17:30:48,607 INFO L226 Difference]: Without dead ends: 23088 [2021-06-12 17:30:48,607 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1158.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:48,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23088 states. [2021-06-12 17:30:48,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23088 to 10173. [2021-06-12 17:30:48,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10173 states, 10171 states have (on average 2.6978664831383345) internal successors, (27440), 10172 states have internal predecessors, (27440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:48,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10173 states to 10173 states and 27440 transitions. [2021-06-12 17:30:48,794 INFO L78 Accepts]: Start accepts. Automaton has 10173 states and 27440 transitions. Word has length 114 [2021-06-12 17:30:48,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:48,794 INFO L482 AbstractCegarLoop]: Abstraction has 10173 states and 27440 transitions. [2021-06-12 17:30:48,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:48,794 INFO L276 IsEmpty]: Start isEmpty. Operand 10173 states and 27440 transitions. [2021-06-12 17:30:48,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:48,803 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:48,803 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:48,803 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-06-12 17:30:48,803 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]=== [2021-06-12 17:30:48,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:48,803 INFO L82 PathProgramCache]: Analyzing trace with hash 2061845450, now seen corresponding path program 175 times [2021-06-12 17:30:48,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:48,803 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169356094] [2021-06-12 17:30:48,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:49,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:49,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:49,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169356094] [2021-06-12 17:30:49,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169356094] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:49,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:49,098 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:49,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634073445] [2021-06-12 17:30:49,098 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:49,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:49,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:49,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:49,098 INFO L87 Difference]: Start difference. First operand 10173 states and 27440 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:49,664 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-06-12 17:30:49,931 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:50,089 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:30:50,251 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:30:50,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:50,405 INFO L93 Difference]: Finished difference Result 22498 states and 59594 transitions. [2021-06-12 17:30:50,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:50,406 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:50,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:50,427 INFO L225 Difference]: With dead ends: 22498 [2021-06-12 17:30:50,427 INFO L226 Difference]: Without dead ends: 22498 [2021-06-12 17:30:50,427 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1152.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:50,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22498 states. [2021-06-12 17:30:50,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22498 to 10125. [2021-06-12 17:30:50,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.697026573150252) internal successors, (27302), 10124 states have internal predecessors, (27302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:50,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27302 transitions. [2021-06-12 17:30:50,603 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27302 transitions. Word has length 114 [2021-06-12 17:30:50,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:50,603 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27302 transitions. [2021-06-12 17:30:50,603 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:50,603 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27302 transitions. [2021-06-12 17:30:50,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:50,611 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:50,611 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:50,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-06-12 17:30:50,612 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]=== [2021-06-12 17:30:50,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:50,612 INFO L82 PathProgramCache]: Analyzing trace with hash 858264586, now seen corresponding path program 176 times [2021-06-12 17:30:50,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:50,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081849951] [2021-06-12 17:30:50,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:50,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:50,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:50,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081849951] [2021-06-12 17:30:50,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081849951] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:50,903 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:50,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:50,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332454712] [2021-06-12 17:30:50,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:50,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:50,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:50,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:50,903 INFO L87 Difference]: Start difference. First operand 10125 states and 27302 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:51,843 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:52,037 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:52,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:52,181 INFO L93 Difference]: Finished difference Result 19386 states and 51585 transitions. [2021-06-12 17:30:52,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:52,181 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:52,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:52,198 INFO L225 Difference]: With dead ends: 19386 [2021-06-12 17:30:52,198 INFO L226 Difference]: Without dead ends: 19386 [2021-06-12 17:30:52,198 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1101.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:52,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19386 states. [2021-06-12 17:30:52,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19386 to 10097. [2021-06-12 17:30:52,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10097 states, 10095 states have (on average 2.6963843486874692) internal successors, (27220), 10096 states have internal predecessors, (27220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:52,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10097 states to 10097 states and 27220 transitions. [2021-06-12 17:30:52,362 INFO L78 Accepts]: Start accepts. Automaton has 10097 states and 27220 transitions. Word has length 114 [2021-06-12 17:30:52,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:52,362 INFO L482 AbstractCegarLoop]: Abstraction has 10097 states and 27220 transitions. [2021-06-12 17:30:52,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:52,362 INFO L276 IsEmpty]: Start isEmpty. Operand 10097 states and 27220 transitions. [2021-06-12 17:30:52,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:52,371 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:52,371 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:52,371 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-06-12 17:30:52,371 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]=== [2021-06-12 17:30:52,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:52,371 INFO L82 PathProgramCache]: Analyzing trace with hash -2125186518, now seen corresponding path program 177 times [2021-06-12 17:30:52,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:52,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344440911] [2021-06-12 17:30:52,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:52,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:52,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:52,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344440911] [2021-06-12 17:30:52,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344440911] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:52,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:52,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:52,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849307832] [2021-06-12 17:30:52,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:52,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:52,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:52,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:52,650 INFO L87 Difference]: Start difference. First operand 10097 states and 27220 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:53,570 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:53,734 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:53,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:53,872 INFO L93 Difference]: Finished difference Result 19159 states and 50944 transitions. [2021-06-12 17:30:53,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:53,873 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:53,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:53,890 INFO L225 Difference]: With dead ends: 19159 [2021-06-12 17:30:53,890 INFO L226 Difference]: Without dead ends: 19159 [2021-06-12 17:30:53,890 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1094.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:53,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19159 states. [2021-06-12 17:30:54,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19159 to 10225. [2021-06-12 17:30:54,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10225 states, 10223 states have (on average 2.6986207571163066) internal successors, (27588), 10224 states have internal predecessors, (27588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:54,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10225 states to 10225 states and 27588 transitions. [2021-06-12 17:30:54,078 INFO L78 Accepts]: Start accepts. Automaton has 10225 states and 27588 transitions. Word has length 114 [2021-06-12 17:30:54,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:54,078 INFO L482 AbstractCegarLoop]: Abstraction has 10225 states and 27588 transitions. [2021-06-12 17:30:54,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:54,078 INFO L276 IsEmpty]: Start isEmpty. Operand 10225 states and 27588 transitions. [2021-06-12 17:30:54,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:54,085 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:54,085 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:54,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-06-12 17:30:54,086 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]=== [2021-06-12 17:30:54,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:54,086 INFO L82 PathProgramCache]: Analyzing trace with hash -211949782, now seen corresponding path program 178 times [2021-06-12 17:30:54,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:54,086 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465911906] [2021-06-12 17:30:54,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:54,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:54,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:54,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465911906] [2021-06-12 17:30:54,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465911906] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:54,359 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:54,359 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:54,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579078687] [2021-06-12 17:30:54,359 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:54,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:54,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:54,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:54,359 INFO L87 Difference]: Start difference. First operand 10225 states and 27588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:55,174 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:55,318 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:55,483 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:55,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:55,628 INFO L93 Difference]: Finished difference Result 21687 states and 57493 transitions. [2021-06-12 17:30:55,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:55,628 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:55,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:55,647 INFO L225 Difference]: With dead ends: 21687 [2021-06-12 17:30:55,647 INFO L226 Difference]: Without dead ends: 21687 [2021-06-12 17:30:55,647 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1107.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:55,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21687 states. [2021-06-12 17:30:55,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21687 to 10241. [2021-06-12 17:30:55,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10241 states, 10239 states have (on average 2.698896376599277) internal successors, (27634), 10240 states have internal predecessors, (27634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:55,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10241 states to 10241 states and 27634 transitions. [2021-06-12 17:30:55,816 INFO L78 Accepts]: Start accepts. Automaton has 10241 states and 27634 transitions. Word has length 114 [2021-06-12 17:30:55,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:55,817 INFO L482 AbstractCegarLoop]: Abstraction has 10241 states and 27634 transitions. [2021-06-12 17:30:55,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:55,817 INFO L276 IsEmpty]: Start isEmpty. Operand 10241 states and 27634 transitions. [2021-06-12 17:30:55,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:55,824 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:55,824 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:55,825 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-06-12 17:30:55,825 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]=== [2021-06-12 17:30:55,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:55,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1300422968, now seen corresponding path program 179 times [2021-06-12 17:30:55,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:55,825 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201869052] [2021-06-12 17:30:55,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:56,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:56,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:56,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201869052] [2021-06-12 17:30:56,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201869052] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:56,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:56,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:56,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136363651] [2021-06-12 17:30:56,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:56,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:56,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:56,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:56,153 INFO L87 Difference]: Start difference. First operand 10241 states and 27634 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:56,921 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:57,071 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:30:57,231 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:30:57,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:57,361 INFO L93 Difference]: Finished difference Result 20027 states and 52893 transitions. [2021-06-12 17:30:57,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:57,361 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:57,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:57,379 INFO L225 Difference]: With dead ends: 20027 [2021-06-12 17:30:57,379 INFO L226 Difference]: Without dead ends: 20027 [2021-06-12 17:30:57,379 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1147.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:57,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20027 states. [2021-06-12 17:30:57,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20027 to 10193. [2021-06-12 17:30:57,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10193 states, 10191 states have (on average 2.6980669217937394) internal successors, (27496), 10192 states have internal predecessors, (27496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:57,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10193 states to 10193 states and 27496 transitions. [2021-06-12 17:30:57,536 INFO L78 Accepts]: Start accepts. Automaton has 10193 states and 27496 transitions. Word has length 114 [2021-06-12 17:30:57,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:57,536 INFO L482 AbstractCegarLoop]: Abstraction has 10193 states and 27496 transitions. [2021-06-12 17:30:57,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:57,536 INFO L276 IsEmpty]: Start isEmpty. Operand 10193 states and 27496 transitions. [2021-06-12 17:30:57,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:57,544 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:57,544 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:57,544 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-06-12 17:30:57,544 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]=== [2021-06-12 17:30:57,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:57,544 INFO L82 PathProgramCache]: Analyzing trace with hash 109796842, now seen corresponding path program 180 times [2021-06-12 17:30:57,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:57,544 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521922907] [2021-06-12 17:30:57,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:57,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:57,805 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:57,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521922907] [2021-06-12 17:30:57,805 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521922907] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:57,805 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:57,805 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:57,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651427711] [2021-06-12 17:30:57,805 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:57,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:57,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:57,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:57,805 INFO L87 Difference]: Start difference. First operand 10193 states and 27496 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:58,624 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:30:58,770 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:30:58,933 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:30:59,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:30:59,089 INFO L93 Difference]: Finished difference Result 23017 states and 60672 transitions. [2021-06-12 17:30:59,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:30:59,090 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:30:59,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:30:59,110 INFO L225 Difference]: With dead ends: 23017 [2021-06-12 17:30:59,110 INFO L226 Difference]: Without dead ends: 23017 [2021-06-12 17:30:59,111 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1109.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:30:59,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23017 states. [2021-06-12 17:30:59,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23017 to 10225. [2021-06-12 17:30:59,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10225 states, 10223 states have (on average 2.6986207571163066) internal successors, (27588), 10224 states have internal predecessors, (27588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:59,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10225 states to 10225 states and 27588 transitions. [2021-06-12 17:30:59,283 INFO L78 Accepts]: Start accepts. Automaton has 10225 states and 27588 transitions. Word has length 114 [2021-06-12 17:30:59,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:30:59,283 INFO L482 AbstractCegarLoop]: Abstraction has 10225 states and 27588 transitions. [2021-06-12 17:30:59,283 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:30:59,283 INFO L276 IsEmpty]: Start isEmpty. Operand 10225 states and 27588 transitions. [2021-06-12 17:30:59,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:30:59,290 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:30:59,291 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:30:59,291 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-06-12 17:30:59,291 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]=== [2021-06-12 17:30:59,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:30:59,291 INFO L82 PathProgramCache]: Analyzing trace with hash -978676344, now seen corresponding path program 181 times [2021-06-12 17:30:59,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:30:59,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233121565] [2021-06-12 17:30:59,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:30:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:30:59,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:30:59,555 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:30:59,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233121565] [2021-06-12 17:30:59,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233121565] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:30:59,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:30:59,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:30:59,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143279963] [2021-06-12 17:30:59,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:30:59,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:30:59,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:30:59,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:30:59,555 INFO L87 Difference]: Start difference. First operand 10225 states and 27588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:00,341 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:00,525 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:31:00,685 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:31:00,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:00,844 INFO L93 Difference]: Finished difference Result 23830 states and 62476 transitions. [2021-06-12 17:31:00,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:00,844 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:00,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:00,864 INFO L225 Difference]: With dead ends: 23830 [2021-06-12 17:31:00,864 INFO L226 Difference]: Without dead ends: 23830 [2021-06-12 17:31:00,864 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1113.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:00,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23830 states. [2021-06-12 17:31:01,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23830 to 10209. [2021-06-12 17:31:01,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10209 states, 10207 states have (on average 2.698344273537768) internal successors, (27542), 10208 states have internal predecessors, (27542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:01,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10209 states to 10209 states and 27542 transitions. [2021-06-12 17:31:01,041 INFO L78 Accepts]: Start accepts. Automaton has 10209 states and 27542 transitions. Word has length 114 [2021-06-12 17:31:01,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:01,041 INFO L482 AbstractCegarLoop]: Abstraction has 10209 states and 27542 transitions. [2021-06-12 17:31:01,041 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:01,041 INFO L276 IsEmpty]: Start isEmpty. Operand 10209 states and 27542 transitions. [2021-06-12 17:31:01,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:01,048 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:01,049 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:01,049 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-06-12 17:31:01,049 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]=== [2021-06-12 17:31:01,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:01,049 INFO L82 PathProgramCache]: Analyzing trace with hash -180812884, now seen corresponding path program 182 times [2021-06-12 17:31:01,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:01,049 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359090357] [2021-06-12 17:31:01,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:01,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:01,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:01,312 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359090357] [2021-06-12 17:31:01,312 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359090357] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:01,312 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:01,312 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:01,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640830875] [2021-06-12 17:31:01,312 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:01,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:01,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:01,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:01,312 INFO L87 Difference]: Start difference. First operand 10209 states and 27542 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:02,096 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:02,249 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:31:02,413 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:31:02,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:02,629 INFO L93 Difference]: Finished difference Result 23156 states and 60889 transitions. [2021-06-12 17:31:02,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:02,629 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:02,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:02,643 INFO L225 Difference]: With dead ends: 23156 [2021-06-12 17:31:02,643 INFO L226 Difference]: Without dead ends: 23156 [2021-06-12 17:31:02,643 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1086.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:02,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23156 states. [2021-06-12 17:31:02,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23156 to 10225. [2021-06-12 17:31:02,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10225 states, 10223 states have (on average 2.6986207571163066) internal successors, (27588), 10224 states have internal predecessors, (27588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:02,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10225 states to 10225 states and 27588 transitions. [2021-06-12 17:31:02,801 INFO L78 Accepts]: Start accepts. Automaton has 10225 states and 27588 transitions. Word has length 114 [2021-06-12 17:31:02,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:02,801 INFO L482 AbstractCegarLoop]: Abstraction has 10225 states and 27588 transitions. [2021-06-12 17:31:02,801 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:02,801 INFO L276 IsEmpty]: Start isEmpty. Operand 10225 states and 27588 transitions. [2021-06-12 17:31:02,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:02,809 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:02,809 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:02,810 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-06-12 17:31:02,810 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]=== [2021-06-12 17:31:02,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:02,810 INFO L82 PathProgramCache]: Analyzing trace with hash -429359864, now seen corresponding path program 183 times [2021-06-12 17:31:02,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:02,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13900668] [2021-06-12 17:31:02,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:03,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:03,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:03,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13900668] [2021-06-12 17:31:03,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13900668] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:03,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:03,074 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:03,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636308877] [2021-06-12 17:31:03,074 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:03,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:03,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:03,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:03,074 INFO L87 Difference]: Start difference. First operand 10225 states and 27588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:03,838 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:03,980 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:04,139 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:04,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:04,260 INFO L93 Difference]: Finished difference Result 20221 states and 53415 transitions. [2021-06-12 17:31:04,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:04,260 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:04,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:04,278 INFO L225 Difference]: With dead ends: 20221 [2021-06-12 17:31:04,278 INFO L226 Difference]: Without dead ends: 20221 [2021-06-12 17:31:04,278 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1076.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:04,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20221 states. [2021-06-12 17:31:04,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20221 to 10161. [2021-06-12 17:31:04,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10161 states, 10159 states have (on average 2.6975095974013192) internal successors, (27404), 10160 states have internal predecessors, (27404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:04,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10161 states to 10161 states and 27404 transitions. [2021-06-12 17:31:04,441 INFO L78 Accepts]: Start accepts. Automaton has 10161 states and 27404 transitions. Word has length 114 [2021-06-12 17:31:04,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:04,441 INFO L482 AbstractCegarLoop]: Abstraction has 10161 states and 27404 transitions. [2021-06-12 17:31:04,441 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:04,441 INFO L276 IsEmpty]: Start isEmpty. Operand 10161 states and 27404 transitions. [2021-06-12 17:31:04,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:04,449 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:04,449 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:04,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-06-12 17:31:04,450 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]=== [2021-06-12 17:31:04,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:04,450 INFO L82 PathProgramCache]: Analyzing trace with hash -25405332, now seen corresponding path program 184 times [2021-06-12 17:31:04,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:04,450 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609114560] [2021-06-12 17:31:04,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:04,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:04,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:04,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609114560] [2021-06-12 17:31:04,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609114560] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:04,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:04,754 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:04,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647356176] [2021-06-12 17:31:04,754 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:04,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:04,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:04,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:04,755 INFO L87 Difference]: Start difference. First operand 10161 states and 27404 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:05,527 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:05,671 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:05,832 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:05,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:05,962 INFO L93 Difference]: Finished difference Result 18737 states and 49754 transitions. [2021-06-12 17:31:05,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:05,963 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:05,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:05,979 INFO L225 Difference]: With dead ends: 18737 [2021-06-12 17:31:05,979 INFO L226 Difference]: Without dead ends: 18737 [2021-06-12 17:31:05,979 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1086.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:06,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18737 states. [2021-06-12 17:31:06,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18737 to 10225. [2021-06-12 17:31:06,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10225 states, 10223 states have (on average 2.6986207571163066) internal successors, (27588), 10224 states have internal predecessors, (27588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:06,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10225 states to 10225 states and 27588 transitions. [2021-06-12 17:31:06,130 INFO L78 Accepts]: Start accepts. Automaton has 10225 states and 27588 transitions. Word has length 114 [2021-06-12 17:31:06,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:06,130 INFO L482 AbstractCegarLoop]: Abstraction has 10225 states and 27588 transitions. [2021-06-12 17:31:06,130 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:06,130 INFO L276 IsEmpty]: Start isEmpty. Operand 10225 states and 27588 transitions. [2021-06-12 17:31:06,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:06,138 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:06,138 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:06,138 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-06-12 17:31:06,138 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]=== [2021-06-12 17:31:06,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:06,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1113878518, now seen corresponding path program 185 times [2021-06-12 17:31:06,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:06,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963916143] [2021-06-12 17:31:06,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:06,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:06,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:06,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963916143] [2021-06-12 17:31:06,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963916143] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:06,424 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:06,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:06,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316535145] [2021-06-12 17:31:06,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:06,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:06,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:06,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:06,425 INFO L87 Difference]: Start difference. First operand 10225 states and 27588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:07,217 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:07,370 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:31:07,526 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:31:07,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:07,655 INFO L93 Difference]: Finished difference Result 19550 states and 51558 transitions. [2021-06-12 17:31:07,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:07,656 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:07,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:07,672 INFO L225 Difference]: With dead ends: 19550 [2021-06-12 17:31:07,673 INFO L226 Difference]: Without dead ends: 19550 [2021-06-12 17:31:07,673 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1112.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:07,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19550 states. [2021-06-12 17:31:07,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19550 to 10209. [2021-06-12 17:31:07,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10209 states, 10207 states have (on average 2.698344273537768) internal successors, (27542), 10208 states have internal predecessors, (27542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:07,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10209 states to 10209 states and 27542 transitions. [2021-06-12 17:31:07,825 INFO L78 Accepts]: Start accepts. Automaton has 10209 states and 27542 transitions. Word has length 114 [2021-06-12 17:31:07,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:07,825 INFO L482 AbstractCegarLoop]: Abstraction has 10209 states and 27542 transitions. [2021-06-12 17:31:07,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:07,825 INFO L276 IsEmpty]: Start isEmpty. Operand 10209 states and 27542 transitions. [2021-06-12 17:31:07,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:07,833 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:07,833 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:07,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-06-12 17:31:07,833 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]=== [2021-06-12 17:31:07,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:07,833 INFO L82 PathProgramCache]: Analyzing trace with hash -316015058, now seen corresponding path program 186 times [2021-06-12 17:31:07,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:07,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504529181] [2021-06-12 17:31:07,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:08,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:08,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:08,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504529181] [2021-06-12 17:31:08,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504529181] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:08,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:08,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:08,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954082010] [2021-06-12 17:31:08,097 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:08,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:08,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:08,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:08,097 INFO L87 Difference]: Start difference. First operand 10209 states and 27542 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:08,912 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:09,065 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:31:09,225 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:31:09,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:09,377 INFO L93 Difference]: Finished difference Result 22663 states and 59508 transitions. [2021-06-12 17:31:09,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:09,378 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:09,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:09,397 INFO L225 Difference]: With dead ends: 22663 [2021-06-12 17:31:09,397 INFO L226 Difference]: Without dead ends: 22663 [2021-06-12 17:31:09,397 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1117.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:09,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22663 states. [2021-06-12 17:31:09,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22663 to 10225. [2021-06-12 17:31:09,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10225 states, 10223 states have (on average 2.6986207571163066) internal successors, (27588), 10224 states have internal predecessors, (27588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:09,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10225 states to 10225 states and 27588 transitions. [2021-06-12 17:31:09,572 INFO L78 Accepts]: Start accepts. Automaton has 10225 states and 27588 transitions. Word has length 114 [2021-06-12 17:31:09,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:09,572 INFO L482 AbstractCegarLoop]: Abstraction has 10225 states and 27588 transitions. [2021-06-12 17:31:09,572 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:09,572 INFO L276 IsEmpty]: Start isEmpty. Operand 10225 states and 27588 transitions. [2021-06-12 17:31:09,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:09,580 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:09,580 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:09,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-06-12 17:31:09,580 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]=== [2021-06-12 17:31:09,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:09,581 INFO L82 PathProgramCache]: Analyzing trace with hash -564562038, now seen corresponding path program 187 times [2021-06-12 17:31:09,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:09,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762836011] [2021-06-12 17:31:09,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:09,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:09,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:09,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762836011] [2021-06-12 17:31:09,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762836011] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:09,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:09,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:09,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044676138] [2021-06-12 17:31:09,841 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:09,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:09,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:09,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:09,842 INFO L87 Difference]: Start difference. First operand 10225 states and 27588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:10,628 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:10,772 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:10,935 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:11,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:11,105 INFO L93 Difference]: Finished difference Result 19728 states and 52034 transitions. [2021-06-12 17:31:11,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:11,106 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:11,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:11,118 INFO L225 Difference]: With dead ends: 19728 [2021-06-12 17:31:11,118 INFO L226 Difference]: Without dead ends: 19728 [2021-06-12 17:31:11,118 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1084.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:11,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19728 states. [2021-06-12 17:31:11,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19728 to 10193. [2021-06-12 17:31:11,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10193 states, 10191 states have (on average 2.6980669217937394) internal successors, (27496), 10192 states have internal predecessors, (27496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:11,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10193 states to 10193 states and 27496 transitions. [2021-06-12 17:31:11,258 INFO L78 Accepts]: Start accepts. Automaton has 10193 states and 27496 transitions. Word has length 114 [2021-06-12 17:31:11,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:11,258 INFO L482 AbstractCegarLoop]: Abstraction has 10193 states and 27496 transitions. [2021-06-12 17:31:11,258 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:11,258 INFO L276 IsEmpty]: Start isEmpty. Operand 10193 states and 27496 transitions. [2021-06-12 17:31:11,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:11,266 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:11,266 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:11,266 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-06-12 17:31:11,266 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]=== [2021-06-12 17:31:11,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:11,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1584832344, now seen corresponding path program 188 times [2021-06-12 17:31:11,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:11,266 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498561389] [2021-06-12 17:31:11,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:11,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:11,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:11,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498561389] [2021-06-12 17:31:11,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498561389] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:11,548 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:11,548 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:11,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127646822] [2021-06-12 17:31:11,548 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:11,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:11,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:11,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:11,549 INFO L87 Difference]: Start difference. First operand 10193 states and 27496 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:12,338 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:12,493 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:31:12,658 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:31:12,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:12,799 INFO L93 Difference]: Finished difference Result 18860 states and 49925 transitions. [2021-06-12 17:31:12,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:12,799 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:12,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:12,815 INFO L225 Difference]: With dead ends: 18860 [2021-06-12 17:31:12,816 INFO L226 Difference]: Without dead ends: 18860 [2021-06-12 17:31:12,816 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1110.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:12,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18860 states. [2021-06-12 17:31:12,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18860 to 10241. [2021-06-12 17:31:12,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10241 states, 10239 states have (on average 2.698896376599277) internal successors, (27634), 10240 states have internal predecessors, (27634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:12,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10241 states to 10241 states and 27634 transitions. [2021-06-12 17:31:12,970 INFO L78 Accepts]: Start accepts. Automaton has 10241 states and 27634 transitions. Word has length 114 [2021-06-12 17:31:12,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:12,970 INFO L482 AbstractCegarLoop]: Abstraction has 10241 states and 27634 transitions. [2021-06-12 17:31:12,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:12,970 INFO L276 IsEmpty]: Start isEmpty. Operand 10241 states and 27634 transitions. [2021-06-12 17:31:12,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:12,978 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:12,978 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:12,978 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-06-12 17:31:12,978 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]=== [2021-06-12 17:31:12,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:12,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1833379324, now seen corresponding path program 189 times [2021-06-12 17:31:12,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:12,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134040902] [2021-06-12 17:31:12,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:13,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:13,295 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:13,295 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134040902] [2021-06-12 17:31:13,295 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134040902] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:13,295 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:13,295 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:13,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561594957] [2021-06-12 17:31:13,295 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:13,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:13,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:13,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:13,295 INFO L87 Difference]: Start difference. First operand 10241 states and 27634 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:14,077 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:14,221 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:14,386 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:14,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:14,514 INFO L93 Difference]: Finished difference Result 18700 states and 49523 transitions. [2021-06-12 17:31:14,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:14,514 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:14,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:14,531 INFO L225 Difference]: With dead ends: 18700 [2021-06-12 17:31:14,531 INFO L226 Difference]: Without dead ends: 18700 [2021-06-12 17:31:14,531 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1089.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:14,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18700 states. [2021-06-12 17:31:14,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18700 to 10225. [2021-06-12 17:31:14,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10225 states, 10223 states have (on average 2.6986207571163066) internal successors, (27588), 10224 states have internal predecessors, (27588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:14,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10225 states to 10225 states and 27588 transitions. [2021-06-12 17:31:14,680 INFO L78 Accepts]: Start accepts. Automaton has 10225 states and 27588 transitions. Word has length 114 [2021-06-12 17:31:14,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:14,680 INFO L482 AbstractCegarLoop]: Abstraction has 10225 states and 27588 transitions. [2021-06-12 17:31:14,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:14,680 INFO L276 IsEmpty]: Start isEmpty. Operand 10225 states and 27588 transitions. [2021-06-12 17:31:14,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:14,688 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:14,688 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:14,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-06-12 17:31:14,688 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]=== [2021-06-12 17:31:14,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:14,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1304770668, now seen corresponding path program 190 times [2021-06-12 17:31:14,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:14,688 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787889789] [2021-06-12 17:31:14,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:14,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:14,961 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:14,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787889789] [2021-06-12 17:31:14,961 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787889789] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:14,961 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:14,961 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:14,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150121110] [2021-06-12 17:31:14,961 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:14,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:14,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:14,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:14,961 INFO L87 Difference]: Start difference. First operand 10225 states and 27588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:15,894 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:16,057 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:16,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:16,181 INFO L93 Difference]: Finished difference Result 16133 states and 42977 transitions. [2021-06-12 17:31:16,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:16,182 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:16,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:16,195 INFO L225 Difference]: With dead ends: 16133 [2021-06-12 17:31:16,196 INFO L226 Difference]: Without dead ends: 16133 [2021-06-12 17:31:16,196 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1088.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:16,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16133 states. [2021-06-12 17:31:16,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16133 to 10109. [2021-06-12 17:31:16,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.694963886415356) internal successors, (27238), 10108 states have internal predecessors, (27238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:16,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27238 transitions. [2021-06-12 17:31:16,327 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27238 transitions. Word has length 114 [2021-06-12 17:31:16,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:16,327 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27238 transitions. [2021-06-12 17:31:16,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:16,328 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27238 transitions. [2021-06-12 17:31:16,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:16,335 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:16,335 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:16,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-06-12 17:31:16,335 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]=== [2021-06-12 17:31:16,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:16,336 INFO L82 PathProgramCache]: Analyzing trace with hash -800643412, now seen corresponding path program 191 times [2021-06-12 17:31:16,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:16,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466221942] [2021-06-12 17:31:16,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:16,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:16,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:16,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466221942] [2021-06-12 17:31:16,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466221942] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:16,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:16,611 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:16,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380965812] [2021-06-12 17:31:16,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:16,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:16,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:16,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:16,612 INFO L87 Difference]: Start difference. First operand 10109 states and 27238 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:17,566 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:17,729 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:17,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:17,876 INFO L93 Difference]: Finished difference Result 18825 states and 50058 transitions. [2021-06-12 17:31:17,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:17,877 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:17,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:17,893 INFO L225 Difference]: With dead ends: 18825 [2021-06-12 17:31:17,893 INFO L226 Difference]: Without dead ends: 18825 [2021-06-12 17:31:17,893 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1111.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:17,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18825 states. [2021-06-12 17:31:18,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18825 to 10189. [2021-06-12 17:31:18,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:18,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-06-12 17:31:18,045 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-06-12 17:31:18,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:18,045 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-06-12 17:31:18,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:18,046 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-06-12 17:31:18,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:18,054 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:18,054 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:18,054 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-06-12 17:31:18,054 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]=== [2021-06-12 17:31:18,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:18,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1112593324, now seen corresponding path program 192 times [2021-06-12 17:31:18,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:18,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505158011] [2021-06-12 17:31:18,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:18,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:18,327 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:18,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505158011] [2021-06-12 17:31:18,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505158011] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:18,327 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:18,328 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:18,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535930469] [2021-06-12 17:31:18,328 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:18,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:18,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:18,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:18,328 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:19,099 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:19,241 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:19,404 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:19,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:19,549 INFO L93 Difference]: Finished difference Result 21353 states and 56607 transitions. [2021-06-12 17:31:19,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:19,549 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:19,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:19,569 INFO L225 Difference]: With dead ends: 21353 [2021-06-12 17:31:19,569 INFO L226 Difference]: Without dead ends: 21353 [2021-06-12 17:31:19,569 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1093.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:19,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21353 states. [2021-06-12 17:31:19,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21353 to 10205. [2021-06-12 17:31:19,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10205 states, 10203 states have (on average 2.6966578457316475) internal successors, (27514), 10204 states have internal predecessors, (27514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:19,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10205 states to 10205 states and 27514 transitions. [2021-06-12 17:31:19,758 INFO L78 Accepts]: Start accepts. Automaton has 10205 states and 27514 transitions. Word has length 114 [2021-06-12 17:31:19,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:19,758 INFO L482 AbstractCegarLoop]: Abstraction has 10205 states and 27514 transitions. [2021-06-12 17:31:19,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:19,758 INFO L276 IsEmpty]: Start isEmpty. Operand 10205 states and 27514 transitions. [2021-06-12 17:31:19,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:19,766 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:19,766 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:19,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-06-12 17:31:19,766 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]=== [2021-06-12 17:31:19,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:19,766 INFO L82 PathProgramCache]: Analyzing trace with hash 24120138, now seen corresponding path program 193 times [2021-06-12 17:31:19,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:19,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821012336] [2021-06-12 17:31:19,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:20,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:20,042 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:20,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821012336] [2021-06-12 17:31:20,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821012336] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:20,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:20,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:20,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738665873] [2021-06-12 17:31:20,043 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:20,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:20,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:20,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:20,043 INFO L87 Difference]: Start difference. First operand 10205 states and 27514 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:20,813 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:20,967 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:31:21,126 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:31:21,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:21,261 INFO L93 Difference]: Finished difference Result 19693 states and 52007 transitions. [2021-06-12 17:31:21,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:21,261 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:21,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:21,278 INFO L225 Difference]: With dead ends: 19693 [2021-06-12 17:31:21,279 INFO L226 Difference]: Without dead ends: 19693 [2021-06-12 17:31:21,279 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1106.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:21,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19693 states. [2021-06-12 17:31:21,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19693 to 10157. [2021-06-12 17:31:21,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.695814869522403) internal successors, (27376), 10156 states have internal predecessors, (27376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:21,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27376 transitions. [2021-06-12 17:31:21,430 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27376 transitions. Word has length 114 [2021-06-12 17:31:21,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:21,430 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27376 transitions. [2021-06-12 17:31:21,430 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:21,430 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27376 transitions. [2021-06-12 17:31:21,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:21,437 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:21,437 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:21,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-06-12 17:31:21,437 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]=== [2021-06-12 17:31:21,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:21,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1434339948, now seen corresponding path program 194 times [2021-06-12 17:31:21,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:21,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617533056] [2021-06-12 17:31:21,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:21,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:21,743 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:21,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617533056] [2021-06-12 17:31:21,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617533056] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:21,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:21,743 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:21,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135605807] [2021-06-12 17:31:21,744 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:21,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:21,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:21,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:21,744 INFO L87 Difference]: Start difference. First operand 10157 states and 27376 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:22,522 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:22,667 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:22,828 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:22,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:22,975 INFO L93 Difference]: Finished difference Result 18931 states and 50224 transitions. [2021-06-12 17:31:22,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:22,976 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:22,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:22,992 INFO L225 Difference]: With dead ends: 18931 [2021-06-12 17:31:22,992 INFO L226 Difference]: Without dead ends: 18931 [2021-06-12 17:31:22,993 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1122.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:23,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18931 states. [2021-06-12 17:31:23,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18931 to 10189. [2021-06-12 17:31:23,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:23,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-06-12 17:31:23,140 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-06-12 17:31:23,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:23,140 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-06-12 17:31:23,140 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:23,140 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-06-12 17:31:23,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:23,148 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:23,148 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:23,148 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-06-12 17:31:23,148 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]=== [2021-06-12 17:31:23,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:23,148 INFO L82 PathProgramCache]: Analyzing trace with hash 345866762, now seen corresponding path program 195 times [2021-06-12 17:31:23,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:23,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053569944] [2021-06-12 17:31:23,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:23,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:23,414 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:23,414 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053569944] [2021-06-12 17:31:23,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053569944] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:23,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:23,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:23,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132261986] [2021-06-12 17:31:23,414 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:23,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:23,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:23,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:23,414 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:24,217 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:24,374 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:31:24,533 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:31:24,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:24,686 INFO L93 Difference]: Finished difference Result 19744 states and 52028 transitions. [2021-06-12 17:31:24,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:24,686 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:24,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:24,703 INFO L225 Difference]: With dead ends: 19744 [2021-06-12 17:31:24,704 INFO L226 Difference]: Without dead ends: 19744 [2021-06-12 17:31:24,704 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1115.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:24,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19744 states. [2021-06-12 17:31:24,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19744 to 10173. [2021-06-12 17:31:24,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10173 states, 10171 states have (on average 2.6960967456493954) internal successors, (27422), 10172 states have internal predecessors, (27422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:24,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10173 states to 10173 states and 27422 transitions. [2021-06-12 17:31:24,854 INFO L78 Accepts]: Start accepts. Automaton has 10173 states and 27422 transitions. Word has length 114 [2021-06-12 17:31:24,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:24,854 INFO L482 AbstractCegarLoop]: Abstraction has 10173 states and 27422 transitions. [2021-06-12 17:31:24,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:24,854 INFO L276 IsEmpty]: Start isEmpty. Operand 10173 states and 27422 transitions. [2021-06-12 17:31:24,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:24,862 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:24,862 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:24,862 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-06-12 17:31:24,862 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]=== [2021-06-12 17:31:24,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:24,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1143730222, now seen corresponding path program 196 times [2021-06-12 17:31:24,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:24,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045366637] [2021-06-12 17:31:24,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:25,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:25,126 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:25,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045366637] [2021-06-12 17:31:25,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045366637] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:25,126 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:25,126 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:25,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643585417] [2021-06-12 17:31:25,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:25,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:25,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:25,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:25,126 INFO L87 Difference]: Start difference. First operand 10173 states and 27422 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:25,885 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:26,035 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:31:26,218 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:31:26,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:26,344 INFO L93 Difference]: Finished difference Result 19070 states and 50441 transitions. [2021-06-12 17:31:26,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:26,345 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:26,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:26,362 INFO L225 Difference]: With dead ends: 19070 [2021-06-12 17:31:26,362 INFO L226 Difference]: Without dead ends: 19070 [2021-06-12 17:31:26,362 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1117.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:26,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19070 states. [2021-06-12 17:31:26,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19070 to 10189. [2021-06-12 17:31:26,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:26,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-06-12 17:31:26,513 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-06-12 17:31:26,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:26,513 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-06-12 17:31:26,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:26,514 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-06-12 17:31:26,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:26,521 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:26,521 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:26,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-06-12 17:31:26,522 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]=== [2021-06-12 17:31:26,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:26,522 INFO L82 PathProgramCache]: Analyzing trace with hash 895183242, now seen corresponding path program 197 times [2021-06-12 17:31:26,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:26,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873723701] [2021-06-12 17:31:26,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:26,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:26,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:26,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873723701] [2021-06-12 17:31:26,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873723701] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:26,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:26,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:26,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31548347] [2021-06-12 17:31:26,781 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:26,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:26,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:26,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:26,782 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:27,542 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:27,684 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:27,842 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:27,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:27,968 INFO L93 Difference]: Finished difference Result 16417 states and 43681 transitions. [2021-06-12 17:31:27,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:27,968 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:27,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:27,984 INFO L225 Difference]: With dead ends: 16417 [2021-06-12 17:31:27,984 INFO L226 Difference]: Without dead ends: 16417 [2021-06-12 17:31:27,984 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1078.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:28,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16417 states. [2021-06-12 17:31:28,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16417 to 10125. [2021-06-12 17:31:28,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6952484441371136) internal successors, (27284), 10124 states have internal predecessors, (27284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:28,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27284 transitions. [2021-06-12 17:31:28,165 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27284 transitions. Word has length 114 [2021-06-12 17:31:28,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:28,165 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27284 transitions. [2021-06-12 17:31:28,165 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:28,165 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27284 transitions. [2021-06-12 17:31:28,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:28,172 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:28,172 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:28,172 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-06-12 17:31:28,172 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]=== [2021-06-12 17:31:28,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:28,172 INFO L82 PathProgramCache]: Analyzing trace with hash -895321650, now seen corresponding path program 198 times [2021-06-12 17:31:28,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:28,172 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317388693] [2021-06-12 17:31:28,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:28,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:28,458 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:28,458 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317388693] [2021-06-12 17:31:28,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317388693] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:28,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:28,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:28,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380321835] [2021-06-12 17:31:28,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:28,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:28,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:28,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:28,459 INFO L87 Difference]: Start difference. First operand 10125 states and 27284 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:29,402 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:29,567 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:29,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:29,728 INFO L93 Difference]: Finished difference Result 21630 states and 57430 transitions. [2021-06-12 17:31:29,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:29,729 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:29,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:29,748 INFO L225 Difference]: With dead ends: 21630 [2021-06-12 17:31:29,748 INFO L226 Difference]: Without dead ends: 21630 [2021-06-12 17:31:29,748 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1099.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:29,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21630 states. [2021-06-12 17:31:29,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21630 to 10173. [2021-06-12 17:31:29,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10173 states, 10171 states have (on average 2.6960967456493954) internal successors, (27422), 10172 states have internal predecessors, (27422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:29,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10173 states to 10173 states and 27422 transitions. [2021-06-12 17:31:29,909 INFO L78 Accepts]: Start accepts. Automaton has 10173 states and 27422 transitions. Word has length 114 [2021-06-12 17:31:29,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:29,909 INFO L482 AbstractCegarLoop]: Abstraction has 10173 states and 27422 transitions. [2021-06-12 17:31:29,909 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:29,909 INFO L276 IsEmpty]: Start isEmpty. Operand 10173 states and 27422 transitions. [2021-06-12 17:31:29,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:29,916 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:29,916 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:29,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-06-12 17:31:29,916 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]=== [2021-06-12 17:31:29,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:29,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1017915086, now seen corresponding path program 199 times [2021-06-12 17:31:29,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:29,917 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749304037] [2021-06-12 17:31:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:30,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:30,248 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:30,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749304037] [2021-06-12 17:31:30,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749304037] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:30,248 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:30,248 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:30,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679517658] [2021-06-12 17:31:30,248 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:30,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:30,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:30,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:30,249 INFO L87 Difference]: Start difference. First operand 10173 states and 27422 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:31,020 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:31,165 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:31,328 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:31,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:31,479 INFO L93 Difference]: Finished difference Result 21702 states and 57562 transitions. [2021-06-12 17:31:31,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:31,480 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:31,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:31,500 INFO L225 Difference]: With dead ends: 21702 [2021-06-12 17:31:31,501 INFO L226 Difference]: Without dead ends: 21702 [2021-06-12 17:31:31,501 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1149.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:31,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21702 states. [2021-06-12 17:31:31,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21702 to 10189. [2021-06-12 17:31:31,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10189 states, 10187 states have (on average 2.6963777363306174) internal successors, (27468), 10188 states have internal predecessors, (27468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:31,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10189 states to 10189 states and 27468 transitions. [2021-06-12 17:31:31,666 INFO L78 Accepts]: Start accepts. Automaton has 10189 states and 27468 transitions. Word has length 114 [2021-06-12 17:31:31,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:31,666 INFO L482 AbstractCegarLoop]: Abstraction has 10189 states and 27468 transitions. [2021-06-12 17:31:31,666 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:31,666 INFO L276 IsEmpty]: Start isEmpty. Operand 10189 states and 27468 transitions. [2021-06-12 17:31:31,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:31,674 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:31,674 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:31,674 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-06-12 17:31:31,674 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]=== [2021-06-12 17:31:31,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:31,674 INFO L82 PathProgramCache]: Analyzing trace with hash -70558100, now seen corresponding path program 200 times [2021-06-12 17:31:31,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:31,674 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548128493] [2021-06-12 17:31:31,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:31,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:31,963 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:31,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548128493] [2021-06-12 17:31:31,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548128493] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:31,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:31,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:31,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409367756] [2021-06-12 17:31:31,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:31,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:31,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:31,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:31,963 INFO L87 Difference]: Start difference. First operand 10189 states and 27468 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:32,519 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-06-12 17:31:32,786 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:32,942 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:31:33,101 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:31:33,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:33,243 INFO L93 Difference]: Finished difference Result 21112 states and 55640 transitions. [2021-06-12 17:31:33,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:33,244 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:33,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:33,262 INFO L225 Difference]: With dead ends: 21112 [2021-06-12 17:31:33,262 INFO L226 Difference]: Without dead ends: 21112 [2021-06-12 17:31:33,262 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1159.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:33,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21112 states. [2021-06-12 17:31:33,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21112 to 10141. [2021-06-12 17:31:33,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.695532103757767) internal successors, (27330), 10140 states have internal predecessors, (27330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:33,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27330 transitions. [2021-06-12 17:31:33,436 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27330 transitions. Word has length 114 [2021-06-12 17:31:33,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:33,437 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27330 transitions. [2021-06-12 17:31:33,437 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:33,437 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27330 transitions. [2021-06-12 17:31:33,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:33,445 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:33,445 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:33,445 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-06-12 17:31:33,445 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]=== [2021-06-12 17:31:33,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:33,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1274138964, now seen corresponding path program 201 times [2021-06-12 17:31:33,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:33,446 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582776529] [2021-06-12 17:31:33,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:33,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:33,752 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:33,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582776529] [2021-06-12 17:31:33,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582776529] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:33,752 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:33,752 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:33,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345267532] [2021-06-12 17:31:33,752 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:33,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:33,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:33,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:33,753 INFO L87 Difference]: Start difference. First operand 10141 states and 27330 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:34,693 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:34,888 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:35,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:35,015 INFO L93 Difference]: Finished difference Result 17652 states and 46779 transitions. [2021-06-12 17:31:35,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:35,015 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:35,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:35,030 INFO L225 Difference]: With dead ends: 17652 [2021-06-12 17:31:35,030 INFO L226 Difference]: Without dead ends: 17652 [2021-06-12 17:31:35,030 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1163.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:35,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17652 states. [2021-06-12 17:31:35,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17652 to 10109. [2021-06-12 17:31:35,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.694963886415356) internal successors, (27238), 10108 states have internal predecessors, (27238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:35,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27238 transitions. [2021-06-12 17:31:35,173 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27238 transitions. Word has length 114 [2021-06-12 17:31:35,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:35,173 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27238 transitions. [2021-06-12 17:31:35,173 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:35,173 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27238 transitions. [2021-06-12 17:31:35,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:35,181 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:35,181 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:35,181 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-06-12 17:31:35,181 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]=== [2021-06-12 17:31:35,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:35,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1301223958, now seen corresponding path program 202 times [2021-06-12 17:31:35,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:35,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388800038] [2021-06-12 17:31:35,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:35,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:35,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:35,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388800038] [2021-06-12 17:31:35,482 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388800038] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:35,482 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:35,482 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:35,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912385456] [2021-06-12 17:31:35,482 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:35,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:35,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:35,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:35,482 INFO L87 Difference]: Start difference. First operand 10109 states and 27238 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:36,401 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:36,565 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:36,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:36,701 INFO L93 Difference]: Finished difference Result 16881 states and 45203 transitions. [2021-06-12 17:31:36,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:36,701 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:36,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:36,717 INFO L225 Difference]: With dead ends: 16881 [2021-06-12 17:31:36,717 INFO L226 Difference]: Without dead ends: 16881 [2021-06-12 17:31:36,717 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1117.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:36,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16881 states. [2021-06-12 17:31:36,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16881 to 10157. [2021-06-12 17:31:36,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.695814869522403) internal successors, (27376), 10156 states have internal predecessors, (27376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:36,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27376 transitions. [2021-06-12 17:31:36,914 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27376 transitions. Word has length 114 [2021-06-12 17:31:36,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:36,914 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27376 transitions. [2021-06-12 17:31:36,914 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:36,914 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27376 transitions. [2021-06-12 17:31:36,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:36,922 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:36,922 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:36,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-06-12 17:31:36,922 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]=== [2021-06-12 17:31:36,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:36,922 INFO L82 PathProgramCache]: Analyzing trace with hash 612012778, now seen corresponding path program 203 times [2021-06-12 17:31:36,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:36,923 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802282072] [2021-06-12 17:31:36,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:37,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:37,245 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:37,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802282072] [2021-06-12 17:31:37,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802282072] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:37,246 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:37,246 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:37,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269608819] [2021-06-12 17:31:37,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:37,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:37,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:37,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:37,246 INFO L87 Difference]: Start difference. First operand 10157 states and 27376 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:38,027 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:38,173 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:38,334 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:38,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:38,466 INFO L93 Difference]: Finished difference Result 16953 states and 45335 transitions. [2021-06-12 17:31:38,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:38,467 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:38,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:38,482 INFO L225 Difference]: With dead ends: 16953 [2021-06-12 17:31:38,482 INFO L226 Difference]: Without dead ends: 16953 [2021-06-12 17:31:38,482 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1146.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:38,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16953 states. [2021-06-12 17:31:38,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16953 to 10173. [2021-06-12 17:31:38,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10173 states, 10171 states have (on average 2.6960967456493954) internal successors, (27422), 10172 states have internal predecessors, (27422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:38,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10173 states to 10173 states and 27422 transitions. [2021-06-12 17:31:38,622 INFO L78 Accepts]: Start accepts. Automaton has 10173 states and 27422 transitions. Word has length 114 [2021-06-12 17:31:38,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:38,622 INFO L482 AbstractCegarLoop]: Abstraction has 10173 states and 27422 transitions. [2021-06-12 17:31:38,622 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:38,622 INFO L276 IsEmpty]: Start isEmpty. Operand 10173 states and 27422 transitions. [2021-06-12 17:31:38,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:38,629 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:38,629 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:38,630 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-06-12 17:31:38,630 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]=== [2021-06-12 17:31:38,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:38,630 INFO L82 PathProgramCache]: Analyzing trace with hash -476460408, now seen corresponding path program 204 times [2021-06-12 17:31:38,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:38,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691923241] [2021-06-12 17:31:38,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:38,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:38,932 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:38,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691923241] [2021-06-12 17:31:38,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691923241] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:38,932 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:38,932 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:38,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848389245] [2021-06-12 17:31:38,932 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:38,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:38,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:38,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:38,932 INFO L87 Difference]: Start difference. First operand 10173 states and 27422 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:39,761 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:39,921 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:31:40,081 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:31:40,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:40,220 INFO L93 Difference]: Finished difference Result 16363 states and 43413 transitions. [2021-06-12 17:31:40,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:40,220 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:40,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:40,236 INFO L225 Difference]: With dead ends: 16363 [2021-06-12 17:31:40,236 INFO L226 Difference]: Without dead ends: 16363 [2021-06-12 17:31:40,236 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1163.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:40,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16363 states. [2021-06-12 17:31:40,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16363 to 10125. [2021-06-12 17:31:40,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6952484441371136) internal successors, (27284), 10124 states have internal predecessors, (27284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:40,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27284 transitions. [2021-06-12 17:31:40,370 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27284 transitions. Word has length 114 [2021-06-12 17:31:40,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:40,370 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27284 transitions. [2021-06-12 17:31:40,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:40,370 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27284 transitions. [2021-06-12 17:31:40,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:40,378 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:40,378 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:40,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-06-12 17:31:40,378 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]=== [2021-06-12 17:31:40,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:40,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1680041272, now seen corresponding path program 205 times [2021-06-12 17:31:40,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:40,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500967144] [2021-06-12 17:31:40,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:40,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:40,679 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:40,679 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500967144] [2021-06-12 17:31:40,679 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500967144] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:40,679 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:40,679 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:40,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364174856] [2021-06-12 17:31:40,679 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:40,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:40,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:40,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:40,679 INFO L87 Difference]: Start difference. First operand 10125 states and 27284 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:41,631 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:41,796 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:41,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:41,923 INFO L93 Difference]: Finished difference Result 16433 states and 43723 transitions. [2021-06-12 17:31:41,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:41,923 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:41,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:41,938 INFO L225 Difference]: With dead ends: 16433 [2021-06-12 17:31:41,938 INFO L226 Difference]: Without dead ends: 16433 [2021-06-12 17:31:41,939 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1103.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:41,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16433 states. [2021-06-12 17:31:42,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16433 to 10109. [2021-06-12 17:31:42,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.694963886415356) internal successors, (27238), 10108 states have internal predecessors, (27238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:42,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27238 transitions. [2021-06-12 17:31:42,074 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27238 transitions. Word has length 114 [2021-06-12 17:31:42,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:42,074 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27238 transitions. [2021-06-12 17:31:42,074 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:42,074 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27238 transitions. [2021-06-12 17:31:42,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:42,081 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:42,082 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:42,082 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-06-12 17:31:42,082 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]=== [2021-06-12 17:31:42,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:42,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1339796914, now seen corresponding path program 206 times [2021-06-12 17:31:42,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:42,082 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810971665] [2021-06-12 17:31:42,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:42,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:42,393 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:42,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810971665] [2021-06-12 17:31:42,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810971665] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:42,393 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:42,393 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:42,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410354228] [2021-06-12 17:31:42,393 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:42,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:42,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:42,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:42,393 INFO L87 Difference]: Start difference. First operand 10109 states and 27238 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:43,294 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:43,456 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:43,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:43,582 INFO L93 Difference]: Finished difference Result 13188 states and 35239 transitions. [2021-06-12 17:31:43,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:43,583 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:43,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:43,594 INFO L225 Difference]: With dead ends: 13188 [2021-06-12 17:31:43,594 INFO L226 Difference]: Without dead ends: 13188 [2021-06-12 17:31:43,594 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1103.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:43,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13188 states. [2021-06-12 17:31:43,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13188 to 9965. [2021-06-12 17:31:43,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6917595101876945) internal successors, (26818), 9964 states have internal predecessors, (26818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:43,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26818 transitions. [2021-06-12 17:31:43,732 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26818 transitions. Word has length 114 [2021-06-12 17:31:43,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:43,732 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26818 transitions. [2021-06-12 17:31:43,732 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26818 transitions. [2021-06-12 17:31:43,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:43,740 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:43,740 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:43,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-06-12 17:31:43,740 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]=== [2021-06-12 17:31:43,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:43,740 INFO L82 PathProgramCache]: Analyzing trace with hash 769875980, now seen corresponding path program 207 times [2021-06-12 17:31:43,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:43,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332409077] [2021-06-12 17:31:43,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:44,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:44,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:44,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332409077] [2021-06-12 17:31:44,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332409077] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:44,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:44,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:44,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101383433] [2021-06-12 17:31:44,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:44,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:44,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:44,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:44,015 INFO L87 Difference]: Start difference. First operand 9965 states and 26818 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:44,927 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:45,089 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:45,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:45,241 INFO L93 Difference]: Finished difference Result 23830 states and 63033 transitions. [2021-06-12 17:31:45,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:45,241 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:45,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:45,262 INFO L225 Difference]: With dead ends: 23830 [2021-06-12 17:31:45,262 INFO L226 Difference]: Without dead ends: 23830 [2021-06-12 17:31:45,262 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1082.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:45,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23830 states. [2021-06-12 17:31:45,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23830 to 10093. [2021-06-12 17:31:45,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:45,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-12 17:31:45,444 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-12 17:31:45,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:45,445 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-12 17:31:45,445 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:45,445 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-12 17:31:45,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:45,453 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:45,453 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:45,453 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-06-12 17:31:45,453 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]=== [2021-06-12 17:31:45,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:45,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1611854580, now seen corresponding path program 208 times [2021-06-12 17:31:45,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:45,453 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846904330] [2021-06-12 17:31:45,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:45,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:45,770 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:45,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846904330] [2021-06-12 17:31:45,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846904330] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:45,770 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:45,770 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:45,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885522693] [2021-06-12 17:31:45,770 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:45,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:45,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:45,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:45,771 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:46,574 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:46,719 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:46,884 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:47,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:47,049 INFO L93 Difference]: Finished difference Result 26358 states and 69582 transitions. [2021-06-12 17:31:47,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:47,049 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:47,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:47,075 INFO L225 Difference]: With dead ends: 26358 [2021-06-12 17:31:47,075 INFO L226 Difference]: Without dead ends: 26358 [2021-06-12 17:31:47,076 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1096.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:47,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26358 states. [2021-06-12 17:31:47,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26358 to 10109. [2021-06-12 17:31:47,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:47,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-06-12 17:31:47,277 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-06-12 17:31:47,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:47,277 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-06-12 17:31:47,277 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:47,277 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-06-12 17:31:47,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:47,285 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:47,285 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:47,285 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-06-12 17:31:47,285 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]=== [2021-06-12 17:31:47,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:47,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1594639530, now seen corresponding path program 209 times [2021-06-12 17:31:47,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:47,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587306938] [2021-06-12 17:31:47,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:47,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:47,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:47,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587306938] [2021-06-12 17:31:47,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587306938] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:47,565 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:47,565 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:47,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212951892] [2021-06-12 17:31:47,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:47,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:47,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:47,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:47,566 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:48,365 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:48,521 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:31:48,681 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:31:48,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:48,829 INFO L93 Difference]: Finished difference Result 24698 states and 64982 transitions. [2021-06-12 17:31:48,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:48,829 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:48,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:48,853 INFO L225 Difference]: With dead ends: 24698 [2021-06-12 17:31:48,853 INFO L226 Difference]: Without dead ends: 24698 [2021-06-12 17:31:48,853 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1128.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:48,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24698 states. [2021-06-12 17:31:49,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24698 to 10061. [2021-06-12 17:31:49,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10061 states, 10059 states have (on average 2.6935083010239587) internal successors, (27094), 10060 states have internal predecessors, (27094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:49,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 27094 transitions. [2021-06-12 17:31:49,043 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 27094 transitions. Word has length 114 [2021-06-12 17:31:49,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:49,043 INFO L482 AbstractCegarLoop]: Abstraction has 10061 states and 27094 transitions. [2021-06-12 17:31:49,043 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:49,043 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 27094 transitions. [2021-06-12 17:31:49,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:49,051 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:49,051 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:49,051 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-06-12 17:31:49,051 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]=== [2021-06-12 17:31:49,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:49,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1290107956, now seen corresponding path program 210 times [2021-06-12 17:31:49,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:49,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561498962] [2021-06-12 17:31:49,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:49,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:49,319 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:49,319 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561498962] [2021-06-12 17:31:49,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561498962] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:49,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:49,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:49,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759072275] [2021-06-12 17:31:49,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:49,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:49,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:49,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:49,320 INFO L87 Difference]: Start difference. First operand 10061 states and 27094 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:49,995 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-12 17:31:50,126 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:50,271 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:50,432 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:50,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:50,581 INFO L93 Difference]: Finished difference Result 23936 states and 63199 transitions. [2021-06-12 17:31:50,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:50,581 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:50,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:50,602 INFO L225 Difference]: With dead ends: 23936 [2021-06-12 17:31:50,602 INFO L226 Difference]: Without dead ends: 23936 [2021-06-12 17:31:50,602 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1118.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:50,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23936 states. [2021-06-12 17:31:50,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23936 to 10093. [2021-06-12 17:31:50,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:50,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-12 17:31:50,783 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-12 17:31:50,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:50,783 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-12 17:31:50,783 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:50,783 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-12 17:31:50,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:50,791 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:50,791 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:50,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-06-12 17:31:50,791 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]=== [2021-06-12 17:31:50,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:50,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1916386154, now seen corresponding path program 211 times [2021-06-12 17:31:50,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:50,791 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500971623] [2021-06-12 17:31:50,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:51,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:51,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:51,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500971623] [2021-06-12 17:31:51,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500971623] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:51,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:51,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:51,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132139182] [2021-06-12 17:31:51,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:51,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:51,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:51,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:51,059 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:51,865 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:52,027 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:31:52,187 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:31:52,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:52,380 INFO L93 Difference]: Finished difference Result 24749 states and 65003 transitions. [2021-06-12 17:31:52,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:52,381 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:52,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:52,406 INFO L225 Difference]: With dead ends: 24749 [2021-06-12 17:31:52,406 INFO L226 Difference]: Without dead ends: 24749 [2021-06-12 17:31:52,406 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1107.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:52,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24749 states. [2021-06-12 17:31:52,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24749 to 10077. [2021-06-12 17:31:52,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:52,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-06-12 17:31:52,608 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-06-12 17:31:52,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:52,608 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-06-12 17:31:52,608 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:52,608 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-06-12 17:31:52,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:52,615 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:52,615 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:52,615 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-06-12 17:31:52,615 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]=== [2021-06-12 17:31:52,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:52,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1580717682, now seen corresponding path program 212 times [2021-06-12 17:31:52,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:52,616 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655419107] [2021-06-12 17:31:52,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:52,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:52,889 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:52,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655419107] [2021-06-12 17:31:52,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655419107] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:52,889 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:52,889 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:52,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887754498] [2021-06-12 17:31:52,889 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:52,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:52,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:52,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:52,890 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:53,662 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:53,814 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:31:53,973 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:31:54,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:54,118 INFO L93 Difference]: Finished difference Result 24075 states and 63416 transitions. [2021-06-12 17:31:54,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:54,119 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:54,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:54,140 INFO L225 Difference]: With dead ends: 24075 [2021-06-12 17:31:54,140 INFO L226 Difference]: Without dead ends: 24075 [2021-06-12 17:31:54,141 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1098.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:54,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24075 states. [2021-06-12 17:31:54,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24075 to 10093. [2021-06-12 17:31:54,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:54,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-12 17:31:54,348 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-12 17:31:54,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:54,348 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-12 17:31:54,348 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:54,348 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-12 17:31:54,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:54,356 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:54,356 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:54,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-06-12 17:31:54,356 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]=== [2021-06-12 17:31:54,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:54,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1829264662, now seen corresponding path program 213 times [2021-06-12 17:31:54,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:54,356 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101964131] [2021-06-12 17:31:54,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:54,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:54,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:54,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101964131] [2021-06-12 17:31:54,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101964131] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:54,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:54,619 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:54,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493966425] [2021-06-12 17:31:54,619 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:54,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:54,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:54,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:54,620 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:55,414 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:55,558 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:55,720 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:55,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:55,870 INFO L93 Difference]: Finished difference Result 21422 states and 56656 transitions. [2021-06-12 17:31:55,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:55,870 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:55,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:55,889 INFO L225 Difference]: With dead ends: 21422 [2021-06-12 17:31:55,889 INFO L226 Difference]: Without dead ends: 21422 [2021-06-12 17:31:55,889 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1088.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:55,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21422 states. [2021-06-12 17:31:56,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21422 to 10029. [2021-06-12 17:31:56,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10029 states, 10027 states have (on average 2.6929290914530766) internal successors, (27002), 10028 states have internal predecessors, (27002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:56,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10029 states to 10029 states and 27002 transitions. [2021-06-12 17:31:56,047 INFO L78 Accepts]: Start accepts. Automaton has 10029 states and 27002 transitions. Word has length 114 [2021-06-12 17:31:56,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:56,047 INFO L482 AbstractCegarLoop]: Abstraction has 10029 states and 27002 transitions. [2021-06-12 17:31:56,047 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:56,047 INFO L276 IsEmpty]: Start isEmpty. Operand 10029 states and 27002 transitions. [2021-06-12 17:31:56,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:56,055 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:56,055 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:56,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-06-12 17:31:56,055 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]=== [2021-06-12 17:31:56,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:56,055 INFO L82 PathProgramCache]: Analyzing trace with hash 675197742, now seen corresponding path program 214 times [2021-06-12 17:31:56,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:56,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011644058] [2021-06-12 17:31:56,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:56,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:56,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:56,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011644058] [2021-06-12 17:31:56,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011644058] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:56,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:56,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:56,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910744457] [2021-06-12 17:31:56,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:56,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:56,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:56,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:56,390 INFO L87 Difference]: Start difference. First operand 10029 states and 27002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:57,333 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:57,497 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:57,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:57,658 INFO L93 Difference]: Finished difference Result 22558 states and 59948 transitions. [2021-06-12 17:31:57,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:57,658 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:57,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:57,679 INFO L225 Difference]: With dead ends: 22558 [2021-06-12 17:31:57,679 INFO L226 Difference]: Without dead ends: 22558 [2021-06-12 17:31:57,679 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1140.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:57,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22558 states. [2021-06-12 17:31:57,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22558 to 10077. [2021-06-12 17:31:57,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:57,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-06-12 17:31:57,844 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-06-12 17:31:57,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:57,844 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-06-12 17:31:57,844 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:57,844 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-06-12 17:31:57,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:57,852 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:57,852 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:57,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-06-12 17:31:57,852 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]=== [2021-06-12 17:31:57,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:57,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1706532818, now seen corresponding path program 215 times [2021-06-12 17:31:57,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:57,852 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774356058] [2021-06-12 17:31:57,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:58,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:58,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:58,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774356058] [2021-06-12 17:31:58,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774356058] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:58,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:58,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:58,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925427973] [2021-06-12 17:31:58,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:58,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:58,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:58,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:58,136 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:58,943 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:31:59,088 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:31:59,249 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:31:59,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:31:59,398 INFO L93 Difference]: Finished difference Result 22630 states and 60080 transitions. [2021-06-12 17:31:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:31:59,398 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:31:59,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:31:59,419 INFO L225 Difference]: With dead ends: 22630 [2021-06-12 17:31:59,419 INFO L226 Difference]: Without dead ends: 22630 [2021-06-12 17:31:59,419 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1125.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:31:59,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22630 states. [2021-06-12 17:31:59,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22630 to 10093. [2021-06-12 17:31:59,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:59,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-12 17:31:59,599 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-12 17:31:59,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:31:59,600 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-12 17:31:59,600 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:31:59,600 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-12 17:31:59,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:31:59,608 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:31:59,608 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:31:59,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-06-12 17:31:59,608 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]=== [2021-06-12 17:31:59,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:31:59,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1499961292, now seen corresponding path program 216 times [2021-06-12 17:31:59,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:31:59,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800421760] [2021-06-12 17:31:59,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:31:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:31:59,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:31:59,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:31:59,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800421760] [2021-06-12 17:31:59,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800421760] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:31:59,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:31:59,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:31:59,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62037639] [2021-06-12 17:31:59,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:31:59,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:31:59,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:31:59,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:31:59,897 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:00,676 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:00,853 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:32:01,009 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:32:01,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:01,148 INFO L93 Difference]: Finished difference Result 22040 states and 58158 transitions. [2021-06-12 17:32:01,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:01,148 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:01,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:01,167 INFO L225 Difference]: With dead ends: 22040 [2021-06-12 17:32:01,168 INFO L226 Difference]: Without dead ends: 22040 [2021-06-12 17:32:01,168 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1131.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:01,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22040 states. [2021-06-12 17:32:01,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22040 to 10045. [2021-06-12 17:32:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10045 states, 10043 states have (on average 2.6932191576222246) internal successors, (27048), 10044 states have internal predecessors, (27048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:01,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10045 states to 10045 states and 27048 transitions. [2021-06-12 17:32:01,341 INFO L78 Accepts]: Start accepts. Automaton has 10045 states and 27048 transitions. Word has length 114 [2021-06-12 17:32:01,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:01,341 INFO L482 AbstractCegarLoop]: Abstraction has 10045 states and 27048 transitions. [2021-06-12 17:32:01,341 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:01,341 INFO L276 IsEmpty]: Start isEmpty. Operand 10045 states and 27048 transitions. [2021-06-12 17:32:01,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:01,351 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:01,351 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:01,352 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-06-12 17:32:01,352 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]=== [2021-06-12 17:32:01,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:01,352 INFO L82 PathProgramCache]: Analyzing trace with hash 296380428, now seen corresponding path program 217 times [2021-06-12 17:32:01,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:01,352 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016042345] [2021-06-12 17:32:01,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:01,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:01,643 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:01,643 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016042345] [2021-06-12 17:32:01,643 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016042345] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:01,643 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:01,644 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:01,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22816945] [2021-06-12 17:32:01,644 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:01,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:01,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:01,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:01,644 INFO L87 Difference]: Start difference. First operand 10045 states and 27048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:02,568 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:02,749 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:02,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:02,894 INFO L93 Difference]: Finished difference Result 18928 states and 50149 transitions. [2021-06-12 17:32:02,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:02,895 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:02,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:02,911 INFO L225 Difference]: With dead ends: 18928 [2021-06-12 17:32:02,911 INFO L226 Difference]: Without dead ends: 18928 [2021-06-12 17:32:02,912 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1114.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:02,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18928 states. [2021-06-12 17:32:03,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18928 to 10013. [2021-06-12 17:32:03,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10013 states, 10011 states have (on average 2.6926380980920985) internal successors, (26956), 10012 states have internal predecessors, (26956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:03,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10013 states to 10013 states and 26956 transitions. [2021-06-12 17:32:03,078 INFO L78 Accepts]: Start accepts. Automaton has 10013 states and 26956 transitions. Word has length 114 [2021-06-12 17:32:03,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:03,078 INFO L482 AbstractCegarLoop]: Abstraction has 10013 states and 26956 transitions. [2021-06-12 17:32:03,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:03,078 INFO L276 IsEmpty]: Start isEmpty. Operand 10013 states and 26956 transitions. [2021-06-12 17:32:03,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:03,085 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:03,085 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:03,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-06-12 17:32:03,085 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]=== [2021-06-12 17:32:03,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:03,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1607896620, now seen corresponding path program 218 times [2021-06-12 17:32:03,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:03,086 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883436876] [2021-06-12 17:32:03,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:03,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:03,383 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:03,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883436876] [2021-06-12 17:32:03,383 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883436876] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:03,383 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:03,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:03,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742346413] [2021-06-12 17:32:03,383 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:03,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:03,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:03,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:03,383 INFO L87 Difference]: Start difference. First operand 10013 states and 26956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:04,309 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:04,473 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:04,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:04,627 INFO L93 Difference]: Finished difference Result 23328 states and 61469 transitions. [2021-06-12 17:32:04,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:04,628 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:04,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:04,647 INFO L225 Difference]: With dead ends: 23328 [2021-06-12 17:32:04,648 INFO L226 Difference]: Without dead ends: 23328 [2021-06-12 17:32:04,648 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1106.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:04,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23328 states. [2021-06-12 17:32:04,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23328 to 10141. [2021-06-12 17:32:04,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:04,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-12 17:32:04,822 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-12 17:32:04,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:04,822 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-12 17:32:04,822 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:04,822 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-12 17:32:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:04,830 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:04,830 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:04,830 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-06-12 17:32:04,830 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]=== [2021-06-12 17:32:04,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:04,830 INFO L82 PathProgramCache]: Analyzing trace with hash -773833940, now seen corresponding path program 219 times [2021-06-12 17:32:04,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:04,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047414980] [2021-06-12 17:32:04,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:05,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:05,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047414980] [2021-06-12 17:32:05,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047414980] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:05,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:05,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:05,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144138512] [2021-06-12 17:32:05,151 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:05,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:05,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:05,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:05,152 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:05,959 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:06,108 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:06,274 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:06,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:06,439 INFO L93 Difference]: Finished difference Result 25856 states and 68018 transitions. [2021-06-12 17:32:06,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:06,439 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:06,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:06,463 INFO L225 Difference]: With dead ends: 25856 [2021-06-12 17:32:06,464 INFO L226 Difference]: Without dead ends: 25856 [2021-06-12 17:32:06,464 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1097.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:06,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25856 states. [2021-06-12 17:32:06,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25856 to 10157. [2021-06-12 17:32:06,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:06,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-06-12 17:32:06,659 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-06-12 17:32:06,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:06,660 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-06-12 17:32:06,660 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:06,660 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-06-12 17:32:06,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:06,668 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:06,668 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:06,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-06-12 17:32:06,668 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]=== [2021-06-12 17:32:06,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:06,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1862307126, now seen corresponding path program 220 times [2021-06-12 17:32:06,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:06,669 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751049506] [2021-06-12 17:32:06,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:06,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:06,944 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:06,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751049506] [2021-06-12 17:32:06,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751049506] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:06,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:06,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:06,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449364477] [2021-06-12 17:32:06,944 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:06,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:06,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:06,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:06,944 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:07,769 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:07,931 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:32:08,098 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:32:08,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:08,261 INFO L93 Difference]: Finished difference Result 24196 states and 63418 transitions. [2021-06-12 17:32:08,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:08,261 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:08,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:08,282 INFO L225 Difference]: With dead ends: 24196 [2021-06-12 17:32:08,283 INFO L226 Difference]: Without dead ends: 24196 [2021-06-12 17:32:08,283 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1102.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:08,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24196 states. [2021-06-12 17:32:08,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24196 to 10109. [2021-06-12 17:32:08,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:08,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-06-12 17:32:08,465 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-06-12 17:32:08,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:08,465 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-06-12 17:32:08,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:08,465 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-06-12 17:32:08,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:08,473 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:08,473 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:08,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-06-12 17:32:08,473 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]=== [2021-06-12 17:32:08,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:08,473 INFO L82 PathProgramCache]: Analyzing trace with hash -452087316, now seen corresponding path program 221 times [2021-06-12 17:32:08,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:08,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313759804] [2021-06-12 17:32:08,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:08,738 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:08,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313759804] [2021-06-12 17:32:08,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313759804] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:08,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:08,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:08,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898010334] [2021-06-12 17:32:08,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:08,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:08,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:08,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:08,738 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:09,540 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:09,687 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:09,848 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:10,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:10,006 INFO L93 Difference]: Finished difference Result 27186 states and 71197 transitions. [2021-06-12 17:32:10,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:10,007 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:10,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:10,031 INFO L225 Difference]: With dead ends: 27186 [2021-06-12 17:32:10,031 INFO L226 Difference]: Without dead ends: 27186 [2021-06-12 17:32:10,031 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1088.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:10,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27186 states. [2021-06-12 17:32:10,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27186 to 10141. [2021-06-12 17:32:10,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:10,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-12 17:32:10,236 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-12 17:32:10,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:10,236 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-12 17:32:10,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:10,236 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-12 17:32:10,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:10,244 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:10,244 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:10,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-06-12 17:32:10,244 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]=== [2021-06-12 17:32:10,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:10,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1540560502, now seen corresponding path program 222 times [2021-06-12 17:32:10,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:10,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131172316] [2021-06-12 17:32:10,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:10,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:10,509 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:10,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131172316] [2021-06-12 17:32:10,509 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131172316] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:10,509 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:10,509 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:10,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763506798] [2021-06-12 17:32:10,509 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:10,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:10,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:10,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:10,509 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:11,280 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:11,435 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:32:11,614 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:32:11,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:11,774 INFO L93 Difference]: Finished difference Result 27999 states and 73001 transitions. [2021-06-12 17:32:11,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:11,774 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:11,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:11,799 INFO L225 Difference]: With dead ends: 27999 [2021-06-12 17:32:11,799 INFO L226 Difference]: Without dead ends: 27999 [2021-06-12 17:32:11,799 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1110.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:11,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27999 states. [2021-06-12 17:32:11,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27999 to 10125. [2021-06-12 17:32:11,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:12,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-06-12 17:32:12,006 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-06-12 17:32:12,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:12,006 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-06-12 17:32:12,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:12,006 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-06-12 17:32:12,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:12,014 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:12,014 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:12,014 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-06-12 17:32:12,014 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]=== [2021-06-12 17:32:12,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:12,014 INFO L82 PathProgramCache]: Analyzing trace with hash -742697042, now seen corresponding path program 223 times [2021-06-12 17:32:12,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:12,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733907001] [2021-06-12 17:32:12,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:12,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:12,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:12,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733907001] [2021-06-12 17:32:12,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733907001] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:12,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:12,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:12,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72920085] [2021-06-12 17:32:12,280 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:12,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:12,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:12,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:12,281 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:13,063 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:13,216 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:32:13,377 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:32:13,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:13,540 INFO L93 Difference]: Finished difference Result 27325 states and 71414 transitions. [2021-06-12 17:32:13,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:13,541 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:13,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:13,565 INFO L225 Difference]: With dead ends: 27325 [2021-06-12 17:32:13,565 INFO L226 Difference]: Without dead ends: 27325 [2021-06-12 17:32:13,565 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1105.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:13,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27325 states. [2021-06-12 17:32:13,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27325 to 10141. [2021-06-12 17:32:13,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:13,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-12 17:32:13,776 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-12 17:32:13,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:13,777 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-12 17:32:13,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:13,777 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-12 17:32:13,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:13,785 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:13,785 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:13,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-06-12 17:32:13,785 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]=== [2021-06-12 17:32:13,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:13,785 INFO L82 PathProgramCache]: Analyzing trace with hash -991244022, now seen corresponding path program 224 times [2021-06-12 17:32:13,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:13,785 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247965454] [2021-06-12 17:32:13,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:14,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:14,045 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:14,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247965454] [2021-06-12 17:32:14,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247965454] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:14,045 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:14,045 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:14,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400832710] [2021-06-12 17:32:14,045 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:14,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:14,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:14,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:14,045 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:14,839 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:14,984 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:15,149 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:15,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:15,298 INFO L93 Difference]: Finished difference Result 24390 states and 63940 transitions. [2021-06-12 17:32:15,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:15,298 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:15,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:15,319 INFO L225 Difference]: With dead ends: 24390 [2021-06-12 17:32:15,319 INFO L226 Difference]: Without dead ends: 24390 [2021-06-12 17:32:15,319 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1080.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:15,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24390 states. [2021-06-12 17:32:15,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24390 to 10077. [2021-06-12 17:32:15,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:15,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-06-12 17:32:15,551 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-06-12 17:32:15,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:15,552 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-06-12 17:32:15,552 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:15,552 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-06-12 17:32:15,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:15,559 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:15,559 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:15,559 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-06-12 17:32:15,559 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]=== [2021-06-12 17:32:15,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:15,559 INFO L82 PathProgramCache]: Analyzing trace with hash -587289490, now seen corresponding path program 225 times [2021-06-12 17:32:15,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:15,559 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392401975] [2021-06-12 17:32:15,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:15,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:15,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:15,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392401975] [2021-06-12 17:32:15,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392401975] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:15,819 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:15,819 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:15,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455317381] [2021-06-12 17:32:15,819 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:15,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:15,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:15,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:15,819 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:16,592 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:16,737 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:16,895 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:17,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:17,038 INFO L93 Difference]: Finished difference Result 22906 states and 60279 transitions. [2021-06-12 17:32:17,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:17,038 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:17,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:17,058 INFO L225 Difference]: With dead ends: 22906 [2021-06-12 17:32:17,059 INFO L226 Difference]: Without dead ends: 22906 [2021-06-12 17:32:17,059 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1077.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:17,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22906 states. [2021-06-12 17:32:17,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22906 to 10141. [2021-06-12 17:32:17,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:17,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-12 17:32:17,234 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-12 17:32:17,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:17,234 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-12 17:32:17,234 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:17,234 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-12 17:32:17,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:17,243 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:17,243 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:17,243 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-06-12 17:32:17,243 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]=== [2021-06-12 17:32:17,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:17,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1675762676, now seen corresponding path program 226 times [2021-06-12 17:32:17,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:17,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417511012] [2021-06-12 17:32:17,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:17,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:17,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:17,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417511012] [2021-06-12 17:32:17,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417511012] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:17,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:17,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:17,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243190923] [2021-06-12 17:32:17,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:17,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:17,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:17,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:17,551 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:18,355 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:18,515 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:32:18,674 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:32:18,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:18,832 INFO L93 Difference]: Finished difference Result 23719 states and 62083 transitions. [2021-06-12 17:32:18,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:18,832 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:18,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:18,853 INFO L225 Difference]: With dead ends: 23719 [2021-06-12 17:32:18,853 INFO L226 Difference]: Without dead ends: 23719 [2021-06-12 17:32:18,853 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1137.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:18,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23719 states. [2021-06-12 17:32:19,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23719 to 10125. [2021-06-12 17:32:19,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:19,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-06-12 17:32:19,034 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-06-12 17:32:19,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:19,035 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-06-12 17:32:19,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:19,035 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-06-12 17:32:19,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:19,042 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:19,042 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:19,042 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-06-12 17:32:19,042 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]=== [2021-06-12 17:32:19,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:19,043 INFO L82 PathProgramCache]: Analyzing trace with hash -877899216, now seen corresponding path program 227 times [2021-06-12 17:32:19,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:19,043 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851755806] [2021-06-12 17:32:19,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:19,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:19,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:19,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851755806] [2021-06-12 17:32:19,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851755806] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:19,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:19,306 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:19,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698344840] [2021-06-12 17:32:19,306 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:19,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:19,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:19,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:19,306 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:19,856 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-12 17:32:20,109 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:20,260 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:32:20,418 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:32:20,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:20,577 INFO L93 Difference]: Finished difference Result 26832 states and 70033 transitions. [2021-06-12 17:32:20,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:20,577 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:20,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:20,601 INFO L225 Difference]: With dead ends: 26832 [2021-06-12 17:32:20,601 INFO L226 Difference]: Without dead ends: 26832 [2021-06-12 17:32:20,602 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1123.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:20,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26832 states. [2021-06-12 17:32:20,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26832 to 10141. [2021-06-12 17:32:20,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:20,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-12 17:32:20,796 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-12 17:32:20,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:20,796 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-12 17:32:20,796 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:20,796 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-12 17:32:20,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:20,803 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:20,804 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:20,804 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-06-12 17:32:20,804 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]=== [2021-06-12 17:32:20,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:20,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1126446196, now seen corresponding path program 228 times [2021-06-12 17:32:20,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:20,804 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211165810] [2021-06-12 17:32:20,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:21,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:21,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:21,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211165810] [2021-06-12 17:32:21,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211165810] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:21,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:21,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:21,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797928399] [2021-06-12 17:32:21,063 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:21,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:21,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:21,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:21,063 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:21,861 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:22,044 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:22,205 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:22,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:22,352 INFO L93 Difference]: Finished difference Result 23897 states and 62559 transitions. [2021-06-12 17:32:22,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:22,352 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:22,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:22,373 INFO L225 Difference]: With dead ends: 23897 [2021-06-12 17:32:22,374 INFO L226 Difference]: Without dead ends: 23897 [2021-06-12 17:32:22,374 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1122.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:22,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23897 states. [2021-06-12 17:32:22,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23897 to 10109. [2021-06-12 17:32:22,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:22,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-06-12 17:32:22,563 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-06-12 17:32:22,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:22,563 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-06-12 17:32:22,563 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:22,563 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-06-12 17:32:22,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:22,572 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:22,573 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:22,573 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-06-12 17:32:22,573 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]=== [2021-06-12 17:32:22,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:22,573 INFO L82 PathProgramCache]: Analyzing trace with hash -2146716502, now seen corresponding path program 229 times [2021-06-12 17:32:22,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:22,573 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828748845] [2021-06-12 17:32:22,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:22,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:22,847 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:22,847 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828748845] [2021-06-12 17:32:22,847 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828748845] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:22,847 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:22,847 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:22,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230296529] [2021-06-12 17:32:22,847 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:22,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:22,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:22,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:22,847 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:23,647 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:23,804 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:32:23,967 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:32:24,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:24,123 INFO L93 Difference]: Finished difference Result 23029 states and 60450 transitions. [2021-06-12 17:32:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:24,124 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:24,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:24,144 INFO L225 Difference]: With dead ends: 23029 [2021-06-12 17:32:24,144 INFO L226 Difference]: Without dead ends: 23029 [2021-06-12 17:32:24,144 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1103.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:24,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23029 states. [2021-06-12 17:32:24,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23029 to 10157. [2021-06-12 17:32:24,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:24,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-06-12 17:32:24,343 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-06-12 17:32:24,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:24,343 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-06-12 17:32:24,343 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:24,343 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-06-12 17:32:24,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:24,351 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:24,351 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:24,351 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-06-12 17:32:24,351 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]=== [2021-06-12 17:32:24,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:24,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1899703814, now seen corresponding path program 230 times [2021-06-12 17:32:24,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:24,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356418132] [2021-06-12 17:32:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:24,621 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:24,621 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356418132] [2021-06-12 17:32:24,621 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356418132] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:24,621 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:24,621 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:24,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275359671] [2021-06-12 17:32:24,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:24,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:24,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:24,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:24,622 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:25,419 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:25,564 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:25,726 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:25,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:25,859 INFO L93 Difference]: Finished difference Result 22869 states and 60048 transitions. [2021-06-12 17:32:25,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:25,859 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:25,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:25,879 INFO L225 Difference]: With dead ends: 22869 [2021-06-12 17:32:25,879 INFO L226 Difference]: Without dead ends: 22869 [2021-06-12 17:32:25,879 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1108.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:25,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22869 states. [2021-06-12 17:32:26,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22869 to 10141. [2021-06-12 17:32:26,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:26,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-12 17:32:26,050 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-12 17:32:26,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:26,050 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-12 17:32:26,050 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:26,050 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-12 17:32:26,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:26,057 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:26,057 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:26,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-06-12 17:32:26,057 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]=== [2021-06-12 17:32:26,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:26,058 INFO L82 PathProgramCache]: Analyzing trace with hash 742886510, now seen corresponding path program 231 times [2021-06-12 17:32:26,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:26,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101049701] [2021-06-12 17:32:26,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:26,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:26,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:26,376 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101049701] [2021-06-12 17:32:26,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101049701] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:26,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:26,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:26,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304567505] [2021-06-12 17:32:26,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:26,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:26,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:26,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:26,376 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:27,303 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:27,466 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:27,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:27,597 INFO L93 Difference]: Finished difference Result 20020 states and 52788 transitions. [2021-06-12 17:32:27,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:27,597 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:27,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:27,615 INFO L225 Difference]: With dead ends: 20020 [2021-06-12 17:32:27,615 INFO L226 Difference]: Without dead ends: 20020 [2021-06-12 17:32:27,615 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1075.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:27,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20020 states. [2021-06-12 17:32:27,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20020 to 9981. [2021-06-12 17:32:27,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.6920533119551058) internal successors, (26864), 9980 states have internal predecessors, (26864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:27,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26864 transitions. [2021-06-12 17:32:27,775 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26864 transitions. Word has length 114 [2021-06-12 17:32:27,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:27,775 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26864 transitions. [2021-06-12 17:32:27,775 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:27,775 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26864 transitions. [2021-06-12 17:32:27,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:27,783 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:27,783 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:27,783 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-06-12 17:32:27,783 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]=== [2021-06-12 17:32:27,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:27,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1390011382, now seen corresponding path program 232 times [2021-06-12 17:32:27,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:27,783 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327399841] [2021-06-12 17:32:27,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:28,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:28,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:28,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327399841] [2021-06-12 17:32:28,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327399841] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:28,058 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:28,058 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:28,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617688324] [2021-06-12 17:32:28,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:28,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:28,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:28,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:28,059 INFO L87 Difference]: Start difference. First operand 9981 states and 26864 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:29,032 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:29,195 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:29,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:29,337 INFO L93 Difference]: Finished difference Result 17897 states and 47354 transitions. [2021-06-12 17:32:29,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:29,338 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:29,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:29,353 INFO L225 Difference]: With dead ends: 17897 [2021-06-12 17:32:29,353 INFO L226 Difference]: Without dead ends: 17897 [2021-06-12 17:32:29,353 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1118.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:29,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17897 states. [2021-06-12 17:32:29,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17897 to 10141. [2021-06-12 17:32:29,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:29,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-12 17:32:29,493 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-12 17:32:29,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:29,494 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-12 17:32:29,494 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:29,494 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-12 17:32:29,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:29,501 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:29,501 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:29,501 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-06-12 17:32:29,501 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]=== [2021-06-12 17:32:29,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:29,502 INFO L82 PathProgramCache]: Analyzing trace with hash 523225354, now seen corresponding path program 233 times [2021-06-12 17:32:29,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:29,502 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589463175] [2021-06-12 17:32:29,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:29,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:29,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:29,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589463175] [2021-06-12 17:32:29,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589463175] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:29,776 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:29,776 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:29,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037894516] [2021-06-12 17:32:29,776 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:29,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:29,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:29,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:29,776 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:30,586 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:30,727 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:30,889 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:31,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:31,023 INFO L93 Difference]: Finished difference Result 20425 states and 53903 transitions. [2021-06-12 17:32:31,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:31,023 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:31,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:31,041 INFO L225 Difference]: With dead ends: 20425 [2021-06-12 17:32:31,041 INFO L226 Difference]: Without dead ends: 20425 [2021-06-12 17:32:31,041 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1123.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:31,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20425 states. [2021-06-12 17:32:31,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20425 to 10157. [2021-06-12 17:32:31,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:31,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-06-12 17:32:31,200 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-06-12 17:32:31,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:31,200 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-06-12 17:32:31,200 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:31,200 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-06-12 17:32:31,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:31,208 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:31,208 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:31,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-06-12 17:32:31,208 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]=== [2021-06-12 17:32:31,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:31,208 INFO L82 PathProgramCache]: Analyzing trace with hash -565247832, now seen corresponding path program 234 times [2021-06-12 17:32:31,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:31,209 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177662355] [2021-06-12 17:32:31,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:31,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:31,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:31,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177662355] [2021-06-12 17:32:31,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177662355] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:31,486 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:31,486 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:31,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831290751] [2021-06-12 17:32:31,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:31,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:31,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:31,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:31,486 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:32,259 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:32,412 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:32:32,571 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:32:32,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:32,740 INFO L93 Difference]: Finished difference Result 18765 states and 49303 transitions. [2021-06-12 17:32:32,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:32,740 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:32,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:32,751 INFO L225 Difference]: With dead ends: 18765 [2021-06-12 17:32:32,751 INFO L226 Difference]: Without dead ends: 18765 [2021-06-12 17:32:32,751 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1102.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:32,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18765 states. [2021-06-12 17:32:32,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18765 to 10109. [2021-06-12 17:32:32,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:32,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-06-12 17:32:32,896 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-06-12 17:32:32,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:32,896 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-06-12 17:32:32,896 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:32,896 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-06-12 17:32:32,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:32,905 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:32,905 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:32,905 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-06-12 17:32:32,905 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]=== [2021-06-12 17:32:32,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:32,906 INFO L82 PathProgramCache]: Analyzing trace with hash 844971978, now seen corresponding path program 235 times [2021-06-12 17:32:32,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:32,906 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717355025] [2021-06-12 17:32:32,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:33,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:33,178 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:33,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717355025] [2021-06-12 17:32:33,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717355025] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:33,179 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:33,179 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:33,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339105283] [2021-06-12 17:32:33,179 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:33,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:33,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:33,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:33,179 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:33,976 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:34,122 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:34,283 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:34,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:34,436 INFO L93 Difference]: Finished difference Result 21755 states and 57082 transitions. [2021-06-12 17:32:34,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:34,436 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:34,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:34,454 INFO L225 Difference]: With dead ends: 21755 [2021-06-12 17:32:34,455 INFO L226 Difference]: Without dead ends: 21755 [2021-06-12 17:32:34,455 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1095.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:34,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21755 states. [2021-06-12 17:32:34,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21755 to 10141. [2021-06-12 17:32:34,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:34,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-12 17:32:34,632 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-12 17:32:34,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:34,632 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-12 17:32:34,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:34,632 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-12 17:32:34,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:34,640 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:34,640 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:34,640 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-06-12 17:32:34,640 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]=== [2021-06-12 17:32:34,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:34,640 INFO L82 PathProgramCache]: Analyzing trace with hash -243501208, now seen corresponding path program 236 times [2021-06-12 17:32:34,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:34,640 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280313377] [2021-06-12 17:32:34,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:34,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:34,948 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:34,948 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280313377] [2021-06-12 17:32:34,948 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280313377] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:34,948 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:34,948 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:34,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077221201] [2021-06-12 17:32:34,949 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:34,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:34,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:34,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:34,949 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:35,718 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:35,871 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:32:36,027 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:32:36,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:36,169 INFO L93 Difference]: Finished difference Result 22568 states and 58886 transitions. [2021-06-12 17:32:36,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:36,170 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:36,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:36,189 INFO L225 Difference]: With dead ends: 22568 [2021-06-12 17:32:36,189 INFO L226 Difference]: Without dead ends: 22568 [2021-06-12 17:32:36,189 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1089.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:36,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22568 states. [2021-06-12 17:32:36,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22568 to 10125. [2021-06-12 17:32:36,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:36,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-06-12 17:32:36,363 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-06-12 17:32:36,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:36,363 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-06-12 17:32:36,364 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:36,364 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-06-12 17:32:36,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:36,371 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:36,371 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:36,371 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-06-12 17:32:36,371 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]=== [2021-06-12 17:32:36,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:36,372 INFO L82 PathProgramCache]: Analyzing trace with hash 554362252, now seen corresponding path program 237 times [2021-06-12 17:32:36,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:36,372 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412595913] [2021-06-12 17:32:36,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:36,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:36,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:36,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412595913] [2021-06-12 17:32:36,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412595913] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:36,635 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:36,635 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:36,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899047835] [2021-06-12 17:32:36,635 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:36,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:36,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:36,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:36,636 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:37,433 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:37,584 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:32:37,741 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:32:37,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:37,881 INFO L93 Difference]: Finished difference Result 21894 states and 57299 transitions. [2021-06-12 17:32:37,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:37,881 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:37,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:37,901 INFO L225 Difference]: With dead ends: 21894 [2021-06-12 17:32:37,901 INFO L226 Difference]: Without dead ends: 21894 [2021-06-12 17:32:37,902 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1121.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:37,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21894 states. [2021-06-12 17:32:38,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21894 to 10141. [2021-06-12 17:32:38,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:38,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-12 17:32:38,082 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-12 17:32:38,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:38,082 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-12 17:32:38,082 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:38,082 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-12 17:32:38,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:38,090 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:38,090 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:38,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-06-12 17:32:38,090 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]=== [2021-06-12 17:32:38,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:38,090 INFO L82 PathProgramCache]: Analyzing trace with hash 305815272, now seen corresponding path program 238 times [2021-06-12 17:32:38,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:38,090 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687037600] [2021-06-12 17:32:38,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:38,349 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:38,349 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687037600] [2021-06-12 17:32:38,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687037600] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:38,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:38,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:38,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740507508] [2021-06-12 17:32:38,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:38,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:38,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:38,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:38,350 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:39,024 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-12 17:32:39,155 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:39,297 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:39,457 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:39,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:39,575 INFO L93 Difference]: Finished difference Result 18959 states and 49825 transitions. [2021-06-12 17:32:39,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:39,576 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:39,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:39,592 INFO L225 Difference]: With dead ends: 18959 [2021-06-12 17:32:39,592 INFO L226 Difference]: Without dead ends: 18959 [2021-06-12 17:32:39,592 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1113.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:39,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18959 states. [2021-06-12 17:32:39,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18959 to 10077. [2021-06-12 17:32:39,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:39,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-06-12 17:32:39,748 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-06-12 17:32:39,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:39,748 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-06-12 17:32:39,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:39,749 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-06-12 17:32:39,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:39,756 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:39,756 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:39,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-06-12 17:32:39,757 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]=== [2021-06-12 17:32:39,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:39,757 INFO L82 PathProgramCache]: Analyzing trace with hash 709769804, now seen corresponding path program 239 times [2021-06-12 17:32:39,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:39,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122526354] [2021-06-12 17:32:39,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:40,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:40,017 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:40,017 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122526354] [2021-06-12 17:32:40,017 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122526354] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:40,017 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:40,017 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:40,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897741752] [2021-06-12 17:32:40,018 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:40,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:40,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:40,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:40,018 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:40,818 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:40,967 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:41,130 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:41,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:41,317 INFO L93 Difference]: Finished difference Result 22313 states and 58612 transitions. [2021-06-12 17:32:41,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:41,317 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:41,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:41,334 INFO L225 Difference]: With dead ends: 22313 [2021-06-12 17:32:41,334 INFO L226 Difference]: Without dead ends: 22313 [2021-06-12 17:32:41,334 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1087.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:41,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22313 states. [2021-06-12 17:32:41,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22313 to 10141. [2021-06-12 17:32:41,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:41,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-12 17:32:41,499 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-12 17:32:41,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:41,499 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-12 17:32:41,500 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:41,500 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-12 17:32:41,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:41,507 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:41,507 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:41,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-06-12 17:32:41,507 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]=== [2021-06-12 17:32:41,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:41,508 INFO L82 PathProgramCache]: Analyzing trace with hash -378703382, now seen corresponding path program 240 times [2021-06-12 17:32:41,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:41,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468735141] [2021-06-12 17:32:41,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:41,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:41,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:41,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468735141] [2021-06-12 17:32:41,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468735141] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:41,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:41,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:41,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442224423] [2021-06-12 17:32:41,772 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:41,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:41,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:41,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:41,772 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:42,543 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:42,700 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:32:42,874 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:32:43,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:43,018 INFO L93 Difference]: Finished difference Result 23126 states and 60416 transitions. [2021-06-12 17:32:43,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:43,019 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:43,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:43,039 INFO L225 Difference]: With dead ends: 23126 [2021-06-12 17:32:43,039 INFO L226 Difference]: Without dead ends: 23126 [2021-06-12 17:32:43,039 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1094.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:43,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23126 states. [2021-06-12 17:32:43,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23126 to 10125. [2021-06-12 17:32:43,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10125 states, 10123 states have (on average 2.6946557344660675) internal successors, (27278), 10124 states have internal predecessors, (27278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:43,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10125 states to 10125 states and 27278 transitions. [2021-06-12 17:32:43,267 INFO L78 Accepts]: Start accepts. Automaton has 10125 states and 27278 transitions. Word has length 114 [2021-06-12 17:32:43,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:43,267 INFO L482 AbstractCegarLoop]: Abstraction has 10125 states and 27278 transitions. [2021-06-12 17:32:43,267 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:43,267 INFO L276 IsEmpty]: Start isEmpty. Operand 10125 states and 27278 transitions. [2021-06-12 17:32:43,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:43,274 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:43,275 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:43,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-06-12 17:32:43,275 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]=== [2021-06-12 17:32:43,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:43,275 INFO L82 PathProgramCache]: Analyzing trace with hash 419160078, now seen corresponding path program 241 times [2021-06-12 17:32:43,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:43,275 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663202537] [2021-06-12 17:32:43,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:43,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:43,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:43,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663202537] [2021-06-12 17:32:43,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663202537] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:43,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:43,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:43,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731910884] [2021-06-12 17:32:43,539 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:43,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:43,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:43,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:43,539 INFO L87 Difference]: Start difference. First operand 10125 states and 27278 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:44,331 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:44,488 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:32:44,651 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:32:44,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:44,829 INFO L93 Difference]: Finished difference Result 26239 states and 68366 transitions. [2021-06-12 17:32:44,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:44,829 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:44,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:44,853 INFO L225 Difference]: With dead ends: 26239 [2021-06-12 17:32:44,853 INFO L226 Difference]: Without dead ends: 26239 [2021-06-12 17:32:44,854 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1092.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:44,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26239 states. [2021-06-12 17:32:45,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26239 to 10141. [2021-06-12 17:32:45,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:45,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-12 17:32:45,047 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-12 17:32:45,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:45,047 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-12 17:32:45,047 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:45,047 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-12 17:32:45,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:45,054 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:45,054 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:45,054 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-06-12 17:32:45,055 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]=== [2021-06-12 17:32:45,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:45,055 INFO L82 PathProgramCache]: Analyzing trace with hash 170613098, now seen corresponding path program 242 times [2021-06-12 17:32:45,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:45,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935373731] [2021-06-12 17:32:45,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:45,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:45,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:45,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935373731] [2021-06-12 17:32:45,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935373731] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:45,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:45,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:45,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964250497] [2021-06-12 17:32:45,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:45,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:45,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:45,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:45,360 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:46,140 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:46,284 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:46,445 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:46,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:46,580 INFO L93 Difference]: Finished difference Result 23304 states and 60892 transitions. [2021-06-12 17:32:46,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:46,581 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:46,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:46,601 INFO L225 Difference]: With dead ends: 23304 [2021-06-12 17:32:46,601 INFO L226 Difference]: Without dead ends: 23304 [2021-06-12 17:32:46,601 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1134.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:46,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23304 states. [2021-06-12 17:32:46,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23304 to 10109. [2021-06-12 17:32:46,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:46,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-06-12 17:32:46,780 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-06-12 17:32:46,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:46,780 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-06-12 17:32:46,780 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:46,780 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-06-12 17:32:46,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:46,788 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:46,788 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:46,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-06-12 17:32:46,788 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]=== [2021-06-12 17:32:46,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:46,788 INFO L82 PathProgramCache]: Analyzing trace with hash -849657208, now seen corresponding path program 243 times [2021-06-12 17:32:46,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:46,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532882587] [2021-06-12 17:32:46,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:47,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:47,059 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:47,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532882587] [2021-06-12 17:32:47,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532882587] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:47,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:47,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:47,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768351751] [2021-06-12 17:32:47,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:47,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:47,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:47,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:47,060 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:47,884 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:48,040 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:32:48,216 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:32:48,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:48,374 INFO L93 Difference]: Finished difference Result 22436 states and 58783 transitions. [2021-06-12 17:32:48,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:48,374 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:48,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:48,394 INFO L225 Difference]: With dead ends: 22436 [2021-06-12 17:32:48,395 INFO L226 Difference]: Without dead ends: 22436 [2021-06-12 17:32:48,395 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1131.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:48,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22436 states. [2021-06-12 17:32:48,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22436 to 10157. [2021-06-12 17:32:48,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10157 states, 10155 states have (on average 2.6952240275726242) internal successors, (27370), 10156 states have internal predecessors, (27370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:48,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10157 states to 10157 states and 27370 transitions. [2021-06-12 17:32:48,578 INFO L78 Accepts]: Start accepts. Automaton has 10157 states and 27370 transitions. Word has length 114 [2021-06-12 17:32:48,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:48,578 INFO L482 AbstractCegarLoop]: Abstraction has 10157 states and 27370 transitions. [2021-06-12 17:32:48,578 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:48,578 INFO L276 IsEmpty]: Start isEmpty. Operand 10157 states and 27370 transitions. [2021-06-12 17:32:48,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:48,586 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:48,586 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:48,586 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-06-12 17:32:48,586 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]=== [2021-06-12 17:32:48,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:48,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1098204188, now seen corresponding path program 244 times [2021-06-12 17:32:48,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:48,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704391739] [2021-06-12 17:32:48,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:48,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:48,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:48,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704391739] [2021-06-12 17:32:48,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704391739] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:48,857 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:48,857 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:48,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259819660] [2021-06-12 17:32:48,857 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:48,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:48,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:48,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:48,857 INFO L87 Difference]: Start difference. First operand 10157 states and 27370 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:49,653 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:49,836 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:50,003 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:50,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:50,148 INFO L93 Difference]: Finished difference Result 22276 states and 58381 transitions. [2021-06-12 17:32:50,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:50,148 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:50,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:50,166 INFO L225 Difference]: With dead ends: 22276 [2021-06-12 17:32:50,167 INFO L226 Difference]: Without dead ends: 22276 [2021-06-12 17:32:50,167 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1133.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:50,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22276 states. [2021-06-12 17:32:50,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22276 to 10141. [2021-06-12 17:32:50,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10139 states have (on average 2.694940329421047) internal successors, (27324), 10140 states have internal predecessors, (27324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:50,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 27324 transitions. [2021-06-12 17:32:50,330 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 27324 transitions. Word has length 114 [2021-06-12 17:32:50,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:50,330 INFO L482 AbstractCegarLoop]: Abstraction has 10141 states and 27324 transitions. [2021-06-12 17:32:50,330 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:50,330 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 27324 transitions. [2021-06-12 17:32:50,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:50,338 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:50,338 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:50,338 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-06-12 17:32:50,338 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]=== [2021-06-12 17:32:50,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:50,338 INFO L82 PathProgramCache]: Analyzing trace with hash 2039945804, now seen corresponding path program 245 times [2021-06-12 17:32:50,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:50,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171404908] [2021-06-12 17:32:50,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:50,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:50,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:50,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171404908] [2021-06-12 17:32:50,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171404908] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:50,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:50,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:50,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937049803] [2021-06-12 17:32:50,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:50,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:50,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:50,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:50,621 INFO L87 Difference]: Start difference. First operand 10141 states and 27324 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:51,577 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:51,746 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:51,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:51,884 INFO L93 Difference]: Finished difference Result 19427 states and 51121 transitions. [2021-06-12 17:32:51,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:51,884 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:51,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:51,901 INFO L225 Difference]: With dead ends: 19427 [2021-06-12 17:32:51,901 INFO L226 Difference]: Without dead ends: 19427 [2021-06-12 17:32:51,901 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1108.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:51,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19427 states. [2021-06-12 17:32:52,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19427 to 10013. [2021-06-12 17:32:52,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10013 states, 10011 states have (on average 2.6926380980920985) internal successors, (26956), 10012 states have internal predecessors, (26956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:52,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10013 states to 10013 states and 26956 transitions. [2021-06-12 17:32:52,085 INFO L78 Accepts]: Start accepts. Automaton has 10013 states and 26956 transitions. Word has length 114 [2021-06-12 17:32:52,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:52,085 INFO L482 AbstractCegarLoop]: Abstraction has 10013 states and 26956 transitions. [2021-06-12 17:32:52,085 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:52,085 INFO L276 IsEmpty]: Start isEmpty. Operand 10013 states and 26956 transitions. [2021-06-12 17:32:52,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:52,093 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:52,093 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:52,093 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-06-12 17:32:52,093 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]=== [2021-06-12 17:32:52,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:52,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1113536338, now seen corresponding path program 246 times [2021-06-12 17:32:52,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:52,093 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744782839] [2021-06-12 17:32:52,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:52,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:52,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:52,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744782839] [2021-06-12 17:32:52,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744782839] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:52,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:52,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:52,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625057788] [2021-06-12 17:32:52,361 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:52,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:52,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:52,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:52,362 INFO L87 Difference]: Start difference. First operand 10013 states and 26956 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:53,160 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:53,305 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:53,463 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:53,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:53,598 INFO L93 Difference]: Finished difference Result 17411 states and 45980 transitions. [2021-06-12 17:32:53,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:53,598 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:53,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:53,613 INFO L225 Difference]: With dead ends: 17411 [2021-06-12 17:32:53,613 INFO L226 Difference]: Without dead ends: 17411 [2021-06-12 17:32:53,613 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1090.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:53,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17411 states. [2021-06-12 17:32:53,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17411 to 10093. [2021-06-12 17:32:53,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:53,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-12 17:32:53,756 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-12 17:32:53,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:53,756 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-12 17:32:53,756 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:53,756 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-12 17:32:53,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:53,764 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:53,764 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:53,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-06-12 17:32:53,764 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]=== [2021-06-12 17:32:53,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:53,764 INFO L82 PathProgramCache]: Analyzing trace with hash 2092957772, now seen corresponding path program 247 times [2021-06-12 17:32:53,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:53,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125089181] [2021-06-12 17:32:53,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:54,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:54,086 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:54,086 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125089181] [2021-06-12 17:32:54,086 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125089181] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:54,086 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:54,086 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:54,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150044164] [2021-06-12 17:32:54,086 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:54,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:54,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:54,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:54,087 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:54,846 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:54,999 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:32:55,154 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:32:55,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:55,285 INFO L93 Difference]: Finished difference Result 18224 states and 47784 transitions. [2021-06-12 17:32:55,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:55,286 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:55,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:55,302 INFO L225 Difference]: With dead ends: 18224 [2021-06-12 17:32:55,302 INFO L226 Difference]: Without dead ends: 18224 [2021-06-12 17:32:55,302 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1143.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:55,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18224 states. [2021-06-12 17:32:55,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18224 to 10077. [2021-06-12 17:32:55,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:55,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-06-12 17:32:55,450 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-06-12 17:32:55,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:55,450 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-06-12 17:32:55,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:55,450 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-06-12 17:32:55,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:55,458 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:55,458 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:55,458 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-06-12 17:32:55,458 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]=== [2021-06-12 17:32:55,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:55,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1404146064, now seen corresponding path program 248 times [2021-06-12 17:32:55,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:55,459 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274446717] [2021-06-12 17:32:55,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:55,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:55,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:55,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274446717] [2021-06-12 17:32:55,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274446717] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:55,722 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:55,722 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:55,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193395024] [2021-06-12 17:32:55,722 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:55,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:55,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:55,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:55,723 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:56,516 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:56,666 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:32:56,822 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:32:56,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:56,959 INFO L93 Difference]: Finished difference Result 21337 states and 55734 transitions. [2021-06-12 17:32:56,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:56,959 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:56,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:56,978 INFO L225 Difference]: With dead ends: 21337 [2021-06-12 17:32:56,978 INFO L226 Difference]: Without dead ends: 21337 [2021-06-12 17:32:56,979 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1121.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:57,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21337 states. [2021-06-12 17:32:57,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21337 to 10093. [2021-06-12 17:32:57,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:57,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-12 17:32:57,147 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-12 17:32:57,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:57,147 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-12 17:32:57,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:57,147 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-12 17:32:57,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:57,155 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:57,155 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:57,155 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-06-12 17:32:57,155 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]=== [2021-06-12 17:32:57,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:57,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1652693044, now seen corresponding path program 249 times [2021-06-12 17:32:57,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:57,155 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006859241] [2021-06-12 17:32:57,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:57,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:57,416 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:57,416 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006859241] [2021-06-12 17:32:57,416 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006859241] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:57,416 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:57,416 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:57,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055490422] [2021-06-12 17:32:57,416 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:57,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:57,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:57,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:57,416 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:58,182 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:32:58,359 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:32:58,519 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:32:58,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:32:58,639 INFO L93 Difference]: Finished difference Result 18402 states and 48260 transitions. [2021-06-12 17:32:58,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:32:58,639 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:32:58,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:32:58,656 INFO L225 Difference]: With dead ends: 18402 [2021-06-12 17:32:58,656 INFO L226 Difference]: Without dead ends: 18402 [2021-06-12 17:32:58,656 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1118.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:32:58,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18402 states. [2021-06-12 17:32:58,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18402 to 10061. [2021-06-12 17:32:58,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10061 states, 10059 states have (on average 2.6935083010239587) internal successors, (27094), 10060 states have internal predecessors, (27094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:58,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10061 states to 10061 states and 27094 transitions. [2021-06-12 17:32:58,810 INFO L78 Accepts]: Start accepts. Automaton has 10061 states and 27094 transitions. Word has length 114 [2021-06-12 17:32:58,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:32:58,810 INFO L482 AbstractCegarLoop]: Abstraction has 10061 states and 27094 transitions. [2021-06-12 17:32:58,810 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:58,810 INFO L276 IsEmpty]: Start isEmpty. Operand 10061 states and 27094 transitions. [2021-06-12 17:32:58,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:32:58,818 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:32:58,818 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:32:58,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-06-12 17:32:58,818 INFO L430 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:32:58,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:32:58,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1622003946, now seen corresponding path program 250 times [2021-06-12 17:32:58,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:32:58,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930343152] [2021-06-12 17:32:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:32:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:32:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:32:59,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:32:59,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930343152] [2021-06-12 17:32:59,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930343152] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:32:59,095 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:32:59,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:32:59,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194771912] [2021-06-12 17:32:59,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:32:59,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:32:59,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:32:59,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:32:59,095 INFO L87 Difference]: Start difference. First operand 10061 states and 27094 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:32:59,866 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:00,019 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:33:00,178 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:33:00,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:00,322 INFO L93 Difference]: Finished difference Result 21847 states and 57126 transitions. [2021-06-12 17:33:00,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:00,322 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:00,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:00,341 INFO L225 Difference]: With dead ends: 21847 [2021-06-12 17:33:00,341 INFO L226 Difference]: Without dead ends: 21847 [2021-06-12 17:33:00,341 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1109.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:00,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21847 states. [2021-06-12 17:33:00,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21847 to 10109. [2021-06-12 17:33:00,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10109 states, 10107 states have (on average 2.6943702384486) internal successors, (27232), 10108 states have internal predecessors, (27232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:00,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10109 states to 10109 states and 27232 transitions. [2021-06-12 17:33:00,540 INFO L78 Accepts]: Start accepts. Automaton has 10109 states and 27232 transitions. Word has length 114 [2021-06-12 17:33:00,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:00,540 INFO L482 AbstractCegarLoop]: Abstraction has 10109 states and 27232 transitions. [2021-06-12 17:33:00,540 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:00,540 INFO L276 IsEmpty]: Start isEmpty. Operand 10109 states and 27232 transitions. [2021-06-12 17:33:00,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:00,548 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:00,548 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:00,548 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-06-12 17:33:00,548 INFO L430 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:00,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:00,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1373456966, now seen corresponding path program 251 times [2021-06-12 17:33:00,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:00,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68181298] [2021-06-12 17:33:00,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:00,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:00,821 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:00,821 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68181298] [2021-06-12 17:33:00,821 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68181298] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:00,821 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:00,821 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:00,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911692914] [2021-06-12 17:33:00,821 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:00,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:00,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:00,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:00,822 INFO L87 Difference]: Start difference. First operand 10109 states and 27232 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:01,615 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:01,762 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:01,925 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:02,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:02,071 INFO L93 Difference]: Finished difference Result 21687 states and 56724 transitions. [2021-06-12 17:33:02,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:02,071 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:02,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:02,090 INFO L225 Difference]: With dead ends: 21687 [2021-06-12 17:33:02,090 INFO L226 Difference]: Without dead ends: 21687 [2021-06-12 17:33:02,090 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1099.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:02,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21687 states. [2021-06-12 17:33:02,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21687 to 10093. [2021-06-12 17:33:02,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:02,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-12 17:33:02,266 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-12 17:33:02,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:02,266 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-12 17:33:02,266 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:02,266 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-12 17:33:02,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:02,273 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:02,273 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:02,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-06-12 17:33:02,273 INFO L430 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:02,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:02,274 INFO L82 PathProgramCache]: Analyzing trace with hash 216639662, now seen corresponding path program 252 times [2021-06-12 17:33:02,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:02,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486805694] [2021-06-12 17:33:02,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:02,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:02,596 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:02,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486805694] [2021-06-12 17:33:02,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486805694] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:02,596 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:02,596 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:02,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862867817] [2021-06-12 17:33:02,597 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:02,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:02,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:02,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:02,597 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:03,525 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:03,687 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:03,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:03,812 INFO L93 Difference]: Finished difference Result 18838 states and 49464 transitions. [2021-06-12 17:33:03,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:03,812 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:03,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:03,828 INFO L225 Difference]: With dead ends: 18838 [2021-06-12 17:33:03,829 INFO L226 Difference]: Without dead ends: 18838 [2021-06-12 17:33:03,829 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1153.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:03,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18838 states. [2021-06-12 17:33:03,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18838 to 10029. [2021-06-12 17:33:03,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10029 states, 10027 states have (on average 2.6929290914530766) internal successors, (27002), 10028 states have internal predecessors, (27002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:03,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10029 states to 10029 states and 27002 transitions. [2021-06-12 17:33:03,981 INFO L78 Accepts]: Start accepts. Automaton has 10029 states and 27002 transitions. Word has length 114 [2021-06-12 17:33:03,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:03,981 INFO L482 AbstractCegarLoop]: Abstraction has 10029 states and 27002 transitions. [2021-06-12 17:33:03,981 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:03,981 INFO L276 IsEmpty]: Start isEmpty. Operand 10029 states and 27002 transitions. [2021-06-12 17:33:03,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:03,990 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:03,990 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:03,990 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-06-12 17:33:03,990 INFO L430 AbstractCegarLoop]: === Iteration 262 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:03,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:03,990 INFO L82 PathProgramCache]: Analyzing trace with hash 2026363528, now seen corresponding path program 253 times [2021-06-12 17:33:03,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:03,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968371453] [2021-06-12 17:33:03,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:04,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:04,273 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:04,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968371453] [2021-06-12 17:33:04,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968371453] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:04,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:04,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:04,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847835680] [2021-06-12 17:33:04,273 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:04,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:04,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:04,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:04,274 INFO L87 Difference]: Start difference. First operand 10029 states and 27002 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:05,066 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:05,217 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:33:05,374 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:33:05,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:05,506 INFO L93 Difference]: Finished difference Result 17502 states and 46059 transitions. [2021-06-12 17:33:05,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:05,506 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:05,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:05,522 INFO L225 Difference]: With dead ends: 17502 [2021-06-12 17:33:05,522 INFO L226 Difference]: Without dead ends: 17502 [2021-06-12 17:33:05,522 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1135.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:05,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17502 states. [2021-06-12 17:33:05,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17502 to 10093. [2021-06-12 17:33:05,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10093 states, 10091 states have (on average 2.6940838370825486) internal successors, (27186), 10092 states have internal predecessors, (27186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:05,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10093 states to 10093 states and 27186 transitions. [2021-06-12 17:33:05,675 INFO L78 Accepts]: Start accepts. Automaton has 10093 states and 27186 transitions. Word has length 114 [2021-06-12 17:33:05,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:05,675 INFO L482 AbstractCegarLoop]: Abstraction has 10093 states and 27186 transitions. [2021-06-12 17:33:05,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:05,675 INFO L276 IsEmpty]: Start isEmpty. Operand 10093 states and 27186 transitions. [2021-06-12 17:33:05,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:05,682 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:05,682 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:05,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-06-12 17:33:05,683 INFO L430 AbstractCegarLoop]: === Iteration 263 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:05,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:05,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1777816548, now seen corresponding path program 254 times [2021-06-12 17:33:05,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:05,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073833523] [2021-06-12 17:33:05,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:05,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:05,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:05,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073833523] [2021-06-12 17:33:05,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073833523] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:05,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:05,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:05,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862654752] [2021-06-12 17:33:05,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:05,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:05,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:05,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:05,965 INFO L87 Difference]: Start difference. First operand 10093 states and 27186 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:06,738 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:06,883 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:07,076 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:07,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:07,197 INFO L93 Difference]: Finished difference Result 17342 states and 45657 transitions. [2021-06-12 17:33:07,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:07,197 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:07,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:07,212 INFO L225 Difference]: With dead ends: 17342 [2021-06-12 17:33:07,213 INFO L226 Difference]: Without dead ends: 17342 [2021-06-12 17:33:07,213 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1107.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:07,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17342 states. [2021-06-12 17:33:07,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17342 to 10077. [2021-06-12 17:33:07,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10077 states, 10075 states have (on average 2.6937965260545904) internal successors, (27140), 10076 states have internal predecessors, (27140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:07,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10077 states to 10077 states and 27140 transitions. [2021-06-12 17:33:07,358 INFO L78 Accepts]: Start accepts. Automaton has 10077 states and 27140 transitions. Word has length 114 [2021-06-12 17:33:07,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:07,358 INFO L482 AbstractCegarLoop]: Abstraction has 10077 states and 27140 transitions. [2021-06-12 17:33:07,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:07,358 INFO L276 IsEmpty]: Start isEmpty. Operand 10077 states and 27140 transitions. [2021-06-12 17:33:07,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:07,366 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:07,366 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:07,366 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-06-12 17:33:07,367 INFO L430 AbstractCegarLoop]: === Iteration 264 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:07,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:07,367 INFO L82 PathProgramCache]: Analyzing trace with hash 620999244, now seen corresponding path program 255 times [2021-06-12 17:33:07,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:07,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650204040] [2021-06-12 17:33:07,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:07,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:07,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:07,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650204040] [2021-06-12 17:33:07,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650204040] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:07,655 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:07,655 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:07,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131415518] [2021-06-12 17:33:07,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:07,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:07,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:07,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:07,656 INFO L87 Difference]: Start difference. First operand 10077 states and 27140 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:08,587 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:08,754 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:08,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:08,887 INFO L93 Difference]: Finished difference Result 17630 states and 46485 transitions. [2021-06-12 17:33:08,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:08,887 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:08,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:08,903 INFO L225 Difference]: With dead ends: 17630 [2021-06-12 17:33:08,903 INFO L226 Difference]: Without dead ends: 17630 [2021-06-12 17:33:08,903 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1102.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:08,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17630 states. [2021-06-12 17:33:09,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17630 to 10045. [2021-06-12 17:33:09,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10045 states, 10043 states have (on average 2.6932191576222246) internal successors, (27048), 10044 states have internal predecessors, (27048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:09,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10045 states to 10045 states and 27048 transitions. [2021-06-12 17:33:09,088 INFO L78 Accepts]: Start accepts. Automaton has 10045 states and 27048 transitions. Word has length 114 [2021-06-12 17:33:09,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:09,089 INFO L482 AbstractCegarLoop]: Abstraction has 10045 states and 27048 transitions. [2021-06-12 17:33:09,089 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:09,089 INFO L276 IsEmpty]: Start isEmpty. Operand 10045 states and 27048 transitions. [2021-06-12 17:33:09,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:09,096 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:09,096 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:09,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-06-12 17:33:09,097 INFO L430 AbstractCegarLoop]: === Iteration 265 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:09,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:09,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1965784914, now seen corresponding path program 256 times [2021-06-12 17:33:09,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:09,097 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535593166] [2021-06-12 17:33:09,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:09,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:09,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:09,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535593166] [2021-06-12 17:33:09,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535593166] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:09,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:09,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:09,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113231780] [2021-06-12 17:33:09,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:09,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:09,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:09,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:09,389 INFO L87 Difference]: Start difference. First operand 10045 states and 27048 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:10,308 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:10,472 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:10,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:10,594 INFO L93 Difference]: Finished difference Result 14345 states and 38021 transitions. [2021-06-12 17:33:10,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:10,594 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:10,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:10,606 INFO L225 Difference]: With dead ends: 14345 [2021-06-12 17:33:10,606 INFO L226 Difference]: Without dead ends: 14345 [2021-06-12 17:33:10,607 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1096.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:10,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14345 states. [2021-06-12 17:33:10,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14345 to 9973. [2021-06-12 17:33:10,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9971 states have (on average 2.6910039113428943) internal successors, (26832), 9972 states have internal predecessors, (26832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:10,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 26832 transitions. [2021-06-12 17:33:10,728 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 26832 transitions. Word has length 114 [2021-06-12 17:33:10,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:10,729 INFO L482 AbstractCegarLoop]: Abstraction has 9973 states and 26832 transitions. [2021-06-12 17:33:10,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:10,729 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 26832 transitions. [2021-06-12 17:33:10,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:10,736 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:10,736 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:10,736 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-06-12 17:33:10,736 INFO L430 AbstractCegarLoop]: === Iteration 266 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:10,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:10,736 INFO L82 PathProgramCache]: Analyzing trace with hash -2029741464, now seen corresponding path program 257 times [2021-06-12 17:33:10,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:10,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388711433] [2021-06-12 17:33:10,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:11,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:11,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:11,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388711433] [2021-06-12 17:33:11,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388711433] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:11,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:11,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:11,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355478374] [2021-06-12 17:33:11,011 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:11,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:11,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:11,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:11,011 INFO L87 Difference]: Start difference. First operand 9973 states and 26832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:11,963 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:12,127 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:12,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:12,266 INFO L93 Difference]: Finished difference Result 17620 states and 46550 transitions. [2021-06-12 17:33:12,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:12,267 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:12,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:12,282 INFO L225 Difference]: With dead ends: 17620 [2021-06-12 17:33:12,282 INFO L226 Difference]: Without dead ends: 17620 [2021-06-12 17:33:12,282 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1086.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:12,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17620 states. [2021-06-12 17:33:12,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17620 to 10037. [2021-06-12 17:33:12,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 10035 states have (on average 2.692177379172895) internal successors, (27016), 10036 states have internal predecessors, (27016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:12,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 27016 transitions. [2021-06-12 17:33:12,431 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 27016 transitions. Word has length 114 [2021-06-12 17:33:12,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:12,431 INFO L482 AbstractCegarLoop]: Abstraction has 10037 states and 27016 transitions. [2021-06-12 17:33:12,431 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:12,431 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 27016 transitions. [2021-06-12 17:33:12,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:12,438 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:12,439 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:12,439 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-06-12 17:33:12,439 INFO L430 AbstractCegarLoop]: === Iteration 267 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:12,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:12,439 INFO L82 PathProgramCache]: Analyzing trace with hash -116504728, now seen corresponding path program 258 times [2021-06-12 17:33:12,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:12,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592471099] [2021-06-12 17:33:12,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:12,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:12,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:12,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592471099] [2021-06-12 17:33:12,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592471099] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:12,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:12,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:12,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802027036] [2021-06-12 17:33:12,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:12,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:12,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:12,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:12,711 INFO L87 Difference]: Start difference. First operand 10037 states and 27016 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:13,550 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:13,691 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:13,855 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:13,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:13,995 INFO L93 Difference]: Finished difference Result 20148 states and 53099 transitions. [2021-06-12 17:33:13,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:13,995 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:13,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:14,012 INFO L225 Difference]: With dead ends: 20148 [2021-06-12 17:33:14,012 INFO L226 Difference]: Without dead ends: 20148 [2021-06-12 17:33:14,012 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1141.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:14,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20148 states. [2021-06-12 17:33:14,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20148 to 10053. [2021-06-12 17:33:14,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10053 states, 10051 states have (on average 2.692468411103373) internal successors, (27062), 10052 states have internal predecessors, (27062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:14,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10053 states to 10053 states and 27062 transitions. [2021-06-12 17:33:14,177 INFO L78 Accepts]: Start accepts. Automaton has 10053 states and 27062 transitions. Word has length 114 [2021-06-12 17:33:14,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:14,178 INFO L482 AbstractCegarLoop]: Abstraction has 10053 states and 27062 transitions. [2021-06-12 17:33:14,178 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:14,178 INFO L276 IsEmpty]: Start isEmpty. Operand 10053 states and 27062 transitions. [2021-06-12 17:33:14,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:14,185 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:14,185 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:14,185 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-06-12 17:33:14,185 INFO L430 AbstractCegarLoop]: === Iteration 268 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:14,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:14,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1204977914, now seen corresponding path program 259 times [2021-06-12 17:33:14,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:14,186 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385355637] [2021-06-12 17:33:14,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:14,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:14,461 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:14,461 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385355637] [2021-06-12 17:33:14,461 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385355637] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:14,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:14,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:14,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119817621] [2021-06-12 17:33:14,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:14,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:14,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:14,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:14,462 INFO L87 Difference]: Start difference. First operand 10053 states and 27062 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:15,219 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:15,369 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:33:15,526 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:33:15,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:15,689 INFO L93 Difference]: Finished difference Result 18488 states and 48499 transitions. [2021-06-12 17:33:15,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:15,689 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:15,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:15,702 INFO L225 Difference]: With dead ends: 18488 [2021-06-12 17:33:15,702 INFO L226 Difference]: Without dead ends: 18488 [2021-06-12 17:33:15,702 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1096.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:15,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18488 states. [2021-06-12 17:33:15,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18488 to 10005. [2021-06-12 17:33:15,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10005 states, 10003 states have (on average 2.691592522243327) internal successors, (26924), 10004 states have internal predecessors, (26924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:15,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10005 states to 10005 states and 26924 transitions. [2021-06-12 17:33:15,853 INFO L78 Accepts]: Start accepts. Automaton has 10005 states and 26924 transitions. Word has length 114 [2021-06-12 17:33:15,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:15,853 INFO L482 AbstractCegarLoop]: Abstraction has 10005 states and 26924 transitions. [2021-06-12 17:33:15,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:15,854 INFO L276 IsEmpty]: Start isEmpty. Operand 10005 states and 26924 transitions. [2021-06-12 17:33:15,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:15,861 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:15,861 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:15,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-06-12 17:33:15,861 INFO L430 AbstractCegarLoop]: === Iteration 269 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:15,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:15,861 INFO L82 PathProgramCache]: Analyzing trace with hash 205241896, now seen corresponding path program 260 times [2021-06-12 17:33:15,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:15,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60045685] [2021-06-12 17:33:15,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:16,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:16,120 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:16,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60045685] [2021-06-12 17:33:16,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60045685] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:16,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:16,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:16,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568906201] [2021-06-12 17:33:16,121 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:16,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:16,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:16,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:16,121 INFO L87 Difference]: Start difference. First operand 10005 states and 26924 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:16,884 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:17,026 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:17,187 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:17,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:17,319 INFO L93 Difference]: Finished difference Result 17726 states and 46716 transitions. [2021-06-12 17:33:17,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:17,319 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:17,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:17,334 INFO L225 Difference]: With dead ends: 17726 [2021-06-12 17:33:17,334 INFO L226 Difference]: Without dead ends: 17726 [2021-06-12 17:33:17,335 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1085.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:17,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17726 states. [2021-06-12 17:33:17,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17726 to 10037. [2021-06-12 17:33:17,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 10035 states have (on average 2.692177379172895) internal successors, (27016), 10036 states have internal predecessors, (27016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:17,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 27016 transitions. [2021-06-12 17:33:17,486 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 27016 transitions. Word has length 114 [2021-06-12 17:33:17,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:17,487 INFO L482 AbstractCegarLoop]: Abstraction has 10037 states and 27016 transitions. [2021-06-12 17:33:17,487 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:17,487 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 27016 transitions. [2021-06-12 17:33:17,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:17,494 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:17,494 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:17,494 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-06-12 17:33:17,494 INFO L430 AbstractCegarLoop]: === Iteration 270 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:17,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:17,494 INFO L82 PathProgramCache]: Analyzing trace with hash -883231290, now seen corresponding path program 261 times [2021-06-12 17:33:17,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:17,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816378407] [2021-06-12 17:33:17,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:17,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:17,811 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:17,811 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816378407] [2021-06-12 17:33:17,811 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816378407] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:17,811 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:17,811 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:17,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179542339] [2021-06-12 17:33:17,811 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:17,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:17,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:17,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:17,812 INFO L87 Difference]: Start difference. First operand 10037 states and 27016 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:18,569 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:18,721 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:33:18,877 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:33:19,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:19,007 INFO L93 Difference]: Finished difference Result 18539 states and 48520 transitions. [2021-06-12 17:33:19,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:19,007 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:19,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:19,023 INFO L225 Difference]: With dead ends: 18539 [2021-06-12 17:33:19,024 INFO L226 Difference]: Without dead ends: 18539 [2021-06-12 17:33:19,024 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1094.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:19,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18539 states. [2021-06-12 17:33:19,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18539 to 10021. [2021-06-12 17:33:19,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10021 states, 10019 states have (on average 2.691885417706358) internal successors, (26970), 10020 states have internal predecessors, (26970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:19,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10021 states to 10021 states and 26970 transitions. [2021-06-12 17:33:19,174 INFO L78 Accepts]: Start accepts. Automaton has 10021 states and 26970 transitions. Word has length 114 [2021-06-12 17:33:19,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:19,174 INFO L482 AbstractCegarLoop]: Abstraction has 10021 states and 26970 transitions. [2021-06-12 17:33:19,174 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:19,174 INFO L276 IsEmpty]: Start isEmpty. Operand 10021 states and 26970 transitions. [2021-06-12 17:33:19,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:19,181 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:19,181 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:19,182 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-06-12 17:33:19,182 INFO L430 AbstractCegarLoop]: === Iteration 271 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:19,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:19,182 INFO L82 PathProgramCache]: Analyzing trace with hash -85367830, now seen corresponding path program 262 times [2021-06-12 17:33:19,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:19,182 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755219501] [2021-06-12 17:33:19,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:19,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:19,443 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:19,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755219501] [2021-06-12 17:33:19,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755219501] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:19,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:19,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:19,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850979472] [2021-06-12 17:33:19,443 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:19,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:19,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:19,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:19,444 INFO L87 Difference]: Start difference. First operand 10021 states and 26970 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:20,223 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:20,372 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:33:20,530 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:33:20,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:20,655 INFO L93 Difference]: Finished difference Result 17865 states and 46933 transitions. [2021-06-12 17:33:20,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:20,656 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:20,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:20,671 INFO L225 Difference]: With dead ends: 17865 [2021-06-12 17:33:20,671 INFO L226 Difference]: Without dead ends: 17865 [2021-06-12 17:33:20,671 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1114.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:20,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17865 states. [2021-06-12 17:33:20,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17865 to 10037. [2021-06-12 17:33:20,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10037 states, 10035 states have (on average 2.692177379172895) internal successors, (27016), 10036 states have internal predecessors, (27016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:20,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10037 states to 10037 states and 27016 transitions. [2021-06-12 17:33:20,826 INFO L78 Accepts]: Start accepts. Automaton has 10037 states and 27016 transitions. Word has length 114 [2021-06-12 17:33:20,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:20,826 INFO L482 AbstractCegarLoop]: Abstraction has 10037 states and 27016 transitions. [2021-06-12 17:33:20,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:20,826 INFO L276 IsEmpty]: Start isEmpty. Operand 10037 states and 27016 transitions. [2021-06-12 17:33:20,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:20,834 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:20,834 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:20,834 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-06-12 17:33:20,834 INFO L430 AbstractCegarLoop]: === Iteration 272 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:20,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:20,834 INFO L82 PathProgramCache]: Analyzing trace with hash -333914810, now seen corresponding path program 263 times [2021-06-12 17:33:20,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:20,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998844741] [2021-06-12 17:33:20,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:21,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:21,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:21,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998844741] [2021-06-12 17:33:21,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998844741] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:21,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:21,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:21,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075128049] [2021-06-12 17:33:21,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:21,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:21,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:21,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:21,095 INFO L87 Difference]: Start difference. First operand 10037 states and 27016 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:21,861 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:22,028 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:22,187 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:22,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:22,307 INFO L93 Difference]: Finished difference Result 15212 states and 40173 transitions. [2021-06-12 17:33:22,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:22,307 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:22,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:22,320 INFO L225 Difference]: With dead ends: 15212 [2021-06-12 17:33:22,320 INFO L226 Difference]: Without dead ends: 15212 [2021-06-12 17:33:22,320 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1113.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:22,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15212 states. [2021-06-12 17:33:22,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15212 to 9973. [2021-06-12 17:33:22,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9971 states have (on average 2.6910039113428943) internal successors, (26832), 9972 states have internal predecessors, (26832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:22,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 26832 transitions. [2021-06-12 17:33:22,463 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 26832 transitions. Word has length 114 [2021-06-12 17:33:22,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:22,463 INFO L482 AbstractCegarLoop]: Abstraction has 9973 states and 26832 transitions. [2021-06-12 17:33:22,463 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:22,463 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 26832 transitions. [2021-06-12 17:33:22,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:22,471 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:22,471 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:22,471 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-06-12 17:33:22,471 INFO L430 AbstractCegarLoop]: === Iteration 273 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:22,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:22,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2124419702, now seen corresponding path program 264 times [2021-06-12 17:33:22,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:22,471 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876976151] [2021-06-12 17:33:22,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:22,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:22,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:22,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876976151] [2021-06-12 17:33:22,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876976151] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:22,759 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:22,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:22,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250153454] [2021-06-12 17:33:22,759 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:22,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:22,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:22,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:22,759 INFO L87 Difference]: Start difference. First operand 9973 states and 26832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:23,689 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:23,854 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:23,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:23,996 INFO L93 Difference]: Finished difference Result 16348 states and 43465 transitions. [2021-06-12 17:33:23,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:23,996 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:23,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:24,011 INFO L225 Difference]: With dead ends: 16348 [2021-06-12 17:33:24,012 INFO L226 Difference]: Without dead ends: 16348 [2021-06-12 17:33:24,012 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1100.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:24,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16348 states. [2021-06-12 17:33:24,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16348 to 10005. [2021-06-12 17:33:24,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10005 states, 10003 states have (on average 2.691592522243327) internal successors, (26924), 10004 states have internal predecessors, (26924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:24,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10005 states to 10005 states and 26924 transitions. [2021-06-12 17:33:24,177 INFO L78 Accepts]: Start accepts. Automaton has 10005 states and 26924 transitions. Word has length 114 [2021-06-12 17:33:24,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:24,178 INFO L482 AbstractCegarLoop]: Abstraction has 10005 states and 26924 transitions. [2021-06-12 17:33:24,178 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:24,178 INFO L276 IsEmpty]: Start isEmpty. Operand 10005 states and 26924 transitions. [2021-06-12 17:33:24,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:24,185 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:24,185 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:24,185 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-06-12 17:33:24,185 INFO L430 AbstractCegarLoop]: === Iteration 274 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:24,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:24,186 INFO L82 PathProgramCache]: Analyzing trace with hash -211182966, now seen corresponding path program 265 times [2021-06-12 17:33:24,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:24,186 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181331710] [2021-06-12 17:33:24,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:24,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:24,472 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:24,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181331710] [2021-06-12 17:33:24,472 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181331710] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:24,472 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:24,472 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:24,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796719250] [2021-06-12 17:33:24,472 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:24,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:24,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:24,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:24,473 INFO L87 Difference]: Start difference. First operand 10005 states and 26924 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:25,269 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:25,414 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:25,578 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:25,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:25,716 INFO L93 Difference]: Finished difference Result 16420 states and 43597 transitions. [2021-06-12 17:33:25,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:25,716 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:25,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:25,731 INFO L225 Difference]: With dead ends: 16420 [2021-06-12 17:33:25,732 INFO L226 Difference]: Without dead ends: 16420 [2021-06-12 17:33:25,732 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1111.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:25,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16420 states. [2021-06-12 17:33:25,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16420 to 10021. [2021-06-12 17:33:25,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10021 states, 10019 states have (on average 2.691885417706358) internal successors, (26970), 10020 states have internal predecessors, (26970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:25,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10021 states to 10021 states and 26970 transitions. [2021-06-12 17:33:25,872 INFO L78 Accepts]: Start accepts. Automaton has 10021 states and 26970 transitions. Word has length 114 [2021-06-12 17:33:25,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:25,872 INFO L482 AbstractCegarLoop]: Abstraction has 10021 states and 26970 transitions. [2021-06-12 17:33:25,872 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:25,872 INFO L276 IsEmpty]: Start isEmpty. Operand 10021 states and 26970 transitions. [2021-06-12 17:33:25,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:25,879 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:25,880 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:25,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-06-12 17:33:25,880 INFO L430 AbstractCegarLoop]: === Iteration 275 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:25,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:25,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1299656152, now seen corresponding path program 266 times [2021-06-12 17:33:25,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:25,880 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994546575] [2021-06-12 17:33:25,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:26,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:26,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:26,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994546575] [2021-06-12 17:33:26,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994546575] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:26,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:26,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:26,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435313454] [2021-06-12 17:33:26,218 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:26,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:26,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:26,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:26,218 INFO L87 Difference]: Start difference. First operand 10021 states and 26970 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:27,008 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:27,163 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:33:27,324 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:33:27,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:27,461 INFO L93 Difference]: Finished difference Result 15830 states and 41675 transitions. [2021-06-12 17:33:27,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:27,461 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:27,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:27,475 INFO L225 Difference]: With dead ends: 15830 [2021-06-12 17:33:27,475 INFO L226 Difference]: Without dead ends: 15830 [2021-06-12 17:33:27,475 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1161.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:27,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15830 states. [2021-06-12 17:33:27,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15830 to 9973. [2021-06-12 17:33:27,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9971 states have (on average 2.6910039113428943) internal successors, (26832), 9972 states have internal predecessors, (26832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:27,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 26832 transitions. [2021-06-12 17:33:27,612 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 26832 transitions. Word has length 114 [2021-06-12 17:33:27,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:27,612 INFO L482 AbstractCegarLoop]: Abstraction has 9973 states and 26832 transitions. [2021-06-12 17:33:27,612 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:27,612 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 26832 transitions. [2021-06-12 17:33:27,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:27,620 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:27,620 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:27,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-06-12 17:33:27,620 INFO L430 AbstractCegarLoop]: === Iteration 276 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:27,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:27,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1791730280, now seen corresponding path program 267 times [2021-06-12 17:33:27,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:27,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069565558] [2021-06-12 17:33:27,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:27,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:27,908 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:27,908 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069565558] [2021-06-12 17:33:27,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069565558] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:27,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:27,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:27,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959432334] [2021-06-12 17:33:27,908 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:27,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:27,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:27,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:27,908 INFO L87 Difference]: Start difference. First operand 9973 states and 26832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:28,839 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:29,003 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:29,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:29,125 INFO L93 Difference]: Finished difference Result 12718 states and 33666 transitions. [2021-06-12 17:33:29,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:29,126 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:29,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:29,137 INFO L225 Difference]: With dead ends: 12718 [2021-06-12 17:33:29,137 INFO L226 Difference]: Without dead ends: 12718 [2021-06-12 17:33:29,137 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1097.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:29,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12718 states. [2021-06-12 17:33:29,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12718 to 9853. [2021-06-12 17:33:29,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9853 states, 9851 states have (on average 2.688458024566034) internal successors, (26484), 9852 states have internal predecessors, (26484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:29,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9853 states to 9853 states and 26484 transitions. [2021-06-12 17:33:29,257 INFO L78 Accepts]: Start accepts. Automaton has 9853 states and 26484 transitions. Word has length 114 [2021-06-12 17:33:29,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:29,257 INFO L482 AbstractCegarLoop]: Abstraction has 9853 states and 26484 transitions. [2021-06-12 17:33:29,257 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:29,257 INFO L276 IsEmpty]: Start isEmpty. Operand 9853 states and 26484 transitions. [2021-06-12 17:33:29,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:29,265 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:29,265 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:29,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-06-12 17:33:29,265 INFO L430 AbstractCegarLoop]: === Iteration 277 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:29,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:29,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1191720824, now seen corresponding path program 268 times [2021-06-12 17:33:29,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:29,265 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621964543] [2021-06-12 17:33:29,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:29,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:29,542 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:29,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621964543] [2021-06-12 17:33:29,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621964543] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:29,543 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:29,543 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:29,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536641347] [2021-06-12 17:33:29,543 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:29,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:29,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:29,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:29,543 INFO L87 Difference]: Start difference. First operand 9853 states and 26484 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:30,461 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:30,625 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:30,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:30,792 INFO L93 Difference]: Finished difference Result 17118 states and 44986 transitions. [2021-06-12 17:33:30,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:30,792 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:30,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:30,804 INFO L225 Difference]: With dead ends: 17118 [2021-06-12 17:33:30,804 INFO L226 Difference]: Without dead ends: 17118 [2021-06-12 17:33:30,805 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1096.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:30,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17118 states. [2021-06-12 17:33:30,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17118 to 9981. [2021-06-12 17:33:30,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:30,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-12 17:33:30,937 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-12 17:33:30,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:30,937 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-12 17:33:30,937 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:30,937 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-12 17:33:30,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:30,945 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:30,945 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:30,945 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-06-12 17:33:30,945 INFO L430 AbstractCegarLoop]: === Iteration 278 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:30,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:30,945 INFO L82 PathProgramCache]: Analyzing trace with hash 721515912, now seen corresponding path program 269 times [2021-06-12 17:33:30,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:30,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487013971] [2021-06-12 17:33:30,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:31,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:31,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:31,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487013971] [2021-06-12 17:33:31,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487013971] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:31,219 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:31,219 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:31,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96200564] [2021-06-12 17:33:31,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:31,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:31,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:31,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:31,219 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:32,023 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:32,169 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:32,338 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:32,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:32,485 INFO L93 Difference]: Finished difference Result 19646 states and 51535 transitions. [2021-06-12 17:33:32,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:32,485 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:32,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:32,503 INFO L225 Difference]: With dead ends: 19646 [2021-06-12 17:33:32,503 INFO L226 Difference]: Without dead ends: 19646 [2021-06-12 17:33:32,504 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1104.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:32,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19646 states. [2021-06-12 17:33:32,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19646 to 9997. [2021-06-12 17:33:32,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9997 states, 9995 states have (on average 2.691145572786393) internal successors, (26898), 9996 states have internal predecessors, (26898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:32,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9997 states to 9997 states and 26898 transitions. [2021-06-12 17:33:32,667 INFO L78 Accepts]: Start accepts. Automaton has 9997 states and 26898 transitions. Word has length 114 [2021-06-12 17:33:32,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:32,667 INFO L482 AbstractCegarLoop]: Abstraction has 9997 states and 26898 transitions. [2021-06-12 17:33:32,667 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:32,667 INFO L276 IsEmpty]: Start isEmpty. Operand 9997 states and 26898 transitions. [2021-06-12 17:33:32,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:32,675 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:32,675 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:32,675 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-06-12 17:33:32,675 INFO L430 AbstractCegarLoop]: === Iteration 279 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:32,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:32,676 INFO L82 PathProgramCache]: Analyzing trace with hash -366957274, now seen corresponding path program 270 times [2021-06-12 17:33:32,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:32,676 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710902681] [2021-06-12 17:33:32,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:32,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:32,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:32,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710902681] [2021-06-12 17:33:32,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710902681] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:32,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:32,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:32,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428617299] [2021-06-12 17:33:32,996 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:32,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:32,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:32,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:32,996 INFO L87 Difference]: Start difference. First operand 9997 states and 26898 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:33,802 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:33,960 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:33:34,125 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:33:34,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:34,267 INFO L93 Difference]: Finished difference Result 17986 states and 46935 transitions. [2021-06-12 17:33:34,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:34,267 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:34,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:34,282 INFO L225 Difference]: With dead ends: 17986 [2021-06-12 17:33:34,283 INFO L226 Difference]: Without dead ends: 17986 [2021-06-12 17:33:34,283 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1112.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:34,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17986 states. [2021-06-12 17:33:34,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17986 to 9949. [2021-06-12 17:33:34,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:34,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-06-12 17:33:34,430 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-06-12 17:33:34,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:34,430 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-06-12 17:33:34,430 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:34,430 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-06-12 17:33:34,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:34,437 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:34,437 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:34,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-06-12 17:33:34,437 INFO L430 AbstractCegarLoop]: === Iteration 280 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:34,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:34,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1043262536, now seen corresponding path program 271 times [2021-06-12 17:33:34,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:34,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074447068] [2021-06-12 17:33:34,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:34,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:34,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:34,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074447068] [2021-06-12 17:33:34,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074447068] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:34,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:34,701 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:34,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639509677] [2021-06-12 17:33:34,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:34,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:34,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:34,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:34,701 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:35,516 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:35,661 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:35,825 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:35,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:35,974 INFO L93 Difference]: Finished difference Result 20976 states and 54714 transitions. [2021-06-12 17:33:35,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:35,975 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:35,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:35,993 INFO L225 Difference]: With dead ends: 20976 [2021-06-12 17:33:35,993 INFO L226 Difference]: Without dead ends: 20976 [2021-06-12 17:33:35,993 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1109.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:36,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20976 states. [2021-06-12 17:33:36,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20976 to 9981. [2021-06-12 17:33:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:36,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-12 17:33:36,164 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-12 17:33:36,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:36,164 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-12 17:33:36,164 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:36,164 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-12 17:33:36,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:36,172 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:36,172 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:36,172 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-06-12 17:33:36,172 INFO L430 AbstractCegarLoop]: === Iteration 281 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:36,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:36,172 INFO L82 PathProgramCache]: Analyzing trace with hash -45210650, now seen corresponding path program 272 times [2021-06-12 17:33:36,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:36,172 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316129773] [2021-06-12 17:33:36,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:36,436 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:36,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316129773] [2021-06-12 17:33:36,437 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316129773] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:36,437 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:36,437 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:36,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277373568] [2021-06-12 17:33:36,437 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:36,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:36,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:36,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:36,437 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:37,259 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:37,417 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:33:37,579 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:33:37,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:37,737 INFO L93 Difference]: Finished difference Result 21789 states and 56518 transitions. [2021-06-12 17:33:37,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:37,737 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:37,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:37,756 INFO L225 Difference]: With dead ends: 21789 [2021-06-12 17:33:37,756 INFO L226 Difference]: Without dead ends: 21789 [2021-06-12 17:33:37,756 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1127.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:37,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21789 states. [2021-06-12 17:33:37,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21789 to 9965. [2021-06-12 17:33:37,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6905550536986853) internal successors, (26806), 9964 states have internal predecessors, (26806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:37,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26806 transitions. [2021-06-12 17:33:37,930 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26806 transitions. Word has length 114 [2021-06-12 17:33:37,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:37,930 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26806 transitions. [2021-06-12 17:33:37,930 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:37,930 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26806 transitions. [2021-06-12 17:33:37,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:37,937 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:37,938 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:37,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-06-12 17:33:37,938 INFO L430 AbstractCegarLoop]: === Iteration 282 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:37,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:37,938 INFO L82 PathProgramCache]: Analyzing trace with hash 752652810, now seen corresponding path program 273 times [2021-06-12 17:33:37,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:37,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393281747] [2021-06-12 17:33:37,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:38,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:38,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:38,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393281747] [2021-06-12 17:33:38,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393281747] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:38,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:38,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:38,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699002124] [2021-06-12 17:33:38,203 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:38,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:38,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:38,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:38,203 INFO L87 Difference]: Start difference. First operand 9965 states and 26806 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:38,960 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:39,110 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:33:39,269 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:33:39,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:39,435 INFO L93 Difference]: Finished difference Result 21115 states and 54931 transitions. [2021-06-12 17:33:39,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:39,435 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:39,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:39,449 INFO L225 Difference]: With dead ends: 21115 [2021-06-12 17:33:39,450 INFO L226 Difference]: Without dead ends: 21115 [2021-06-12 17:33:39,450 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1088.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:39,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21115 states. [2021-06-12 17:33:39,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21115 to 9981. [2021-06-12 17:33:39,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:39,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-12 17:33:39,601 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-12 17:33:39,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:39,601 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-12 17:33:39,601 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:39,601 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-12 17:33:39,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:39,610 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:39,610 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:39,610 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-06-12 17:33:39,610 INFO L430 AbstractCegarLoop]: === Iteration 283 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:39,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:39,610 INFO L82 PathProgramCache]: Analyzing trace with hash 504105830, now seen corresponding path program 274 times [2021-06-12 17:33:39,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:39,610 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093311180] [2021-06-12 17:33:39,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:39,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:39,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093311180] [2021-06-12 17:33:39,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093311180] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:39,870 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:39,870 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:39,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014703633] [2021-06-12 17:33:39,870 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:39,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:39,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:39,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:39,871 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:40,634 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:40,776 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:40,936 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:41,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:41,053 INFO L93 Difference]: Finished difference Result 18180 states and 47457 transitions. [2021-06-12 17:33:41,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:41,054 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:41,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:41,070 INFO L225 Difference]: With dead ends: 18180 [2021-06-12 17:33:41,070 INFO L226 Difference]: Without dead ends: 18180 [2021-06-12 17:33:41,070 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1080.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:41,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18180 states. [2021-06-12 17:33:41,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18180 to 9917. [2021-06-12 17:33:41,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 9915 states have (on average 2.6896621280887545) internal successors, (26668), 9916 states have internal predecessors, (26668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:41,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 26668 transitions. [2021-06-12 17:33:41,221 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 26668 transitions. Word has length 114 [2021-06-12 17:33:41,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:41,221 INFO L482 AbstractCegarLoop]: Abstraction has 9917 states and 26668 transitions. [2021-06-12 17:33:41,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:41,221 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 26668 transitions. [2021-06-12 17:33:41,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:41,229 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:41,229 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:41,229 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-06-12 17:33:41,229 INFO L430 AbstractCegarLoop]: === Iteration 284 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:41,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:41,229 INFO L82 PathProgramCache]: Analyzing trace with hash 908060362, now seen corresponding path program 275 times [2021-06-12 17:33:41,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:41,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256076511] [2021-06-12 17:33:41,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:41,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:41,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256076511] [2021-06-12 17:33:41,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256076511] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:41,530 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:41,530 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:41,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949574507] [2021-06-12 17:33:41,530 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:41,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:41,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:41,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:41,531 INFO L87 Difference]: Start difference. First operand 9917 states and 26668 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:42,319 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:42,466 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:42,627 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:42,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:42,760 INFO L93 Difference]: Finished difference Result 16696 states and 43796 transitions. [2021-06-12 17:33:42,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:42,760 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:42,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:42,774 INFO L225 Difference]: With dead ends: 16696 [2021-06-12 17:33:42,774 INFO L226 Difference]: Without dead ends: 16696 [2021-06-12 17:33:42,774 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1083.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:42,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16696 states. [2021-06-12 17:33:42,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16696 to 9981. [2021-06-12 17:33:42,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:42,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-12 17:33:42,912 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-12 17:33:42,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:42,912 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-12 17:33:42,913 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:42,913 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-12 17:33:42,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:42,920 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:42,920 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:42,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-06-12 17:33:42,920 INFO L430 AbstractCegarLoop]: === Iteration 285 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:42,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:42,920 INFO L82 PathProgramCache]: Analyzing trace with hash -180412824, now seen corresponding path program 276 times [2021-06-12 17:33:42,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:42,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520732369] [2021-06-12 17:33:42,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:43,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:43,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:43,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520732369] [2021-06-12 17:33:43,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520732369] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:43,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:43,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:43,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857328722] [2021-06-12 17:33:43,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:43,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:43,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:43,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:43,185 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:43,991 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:44,149 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:33:44,307 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:33:44,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:44,445 INFO L93 Difference]: Finished difference Result 17509 states and 45600 transitions. [2021-06-12 17:33:44,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:44,445 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:44,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:44,460 INFO L225 Difference]: With dead ends: 17509 [2021-06-12 17:33:44,460 INFO L226 Difference]: Without dead ends: 17509 [2021-06-12 17:33:44,460 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1111.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:44,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17509 states. [2021-06-12 17:33:44,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17509 to 9965. [2021-06-12 17:33:44,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6905550536986853) internal successors, (26806), 9964 states have internal predecessors, (26806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:44,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26806 transitions. [2021-06-12 17:33:44,613 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26806 transitions. Word has length 114 [2021-06-12 17:33:44,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:44,613 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26806 transitions. [2021-06-12 17:33:44,613 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:44,613 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26806 transitions. [2021-06-12 17:33:44,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:44,620 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:44,620 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:44,621 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-06-12 17:33:44,621 INFO L430 AbstractCegarLoop]: === Iteration 286 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:44,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:44,621 INFO L82 PathProgramCache]: Analyzing trace with hash 617450636, now seen corresponding path program 277 times [2021-06-12 17:33:44,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:44,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530843890] [2021-06-12 17:33:44,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:44,884 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:44,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530843890] [2021-06-12 17:33:44,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530843890] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:44,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:44,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:44,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806962701] [2021-06-12 17:33:44,884 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:44,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:44,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:44,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:44,884 INFO L87 Difference]: Start difference. First operand 9965 states and 26806 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:45,646 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:45,823 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:33:45,980 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:33:46,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:46,116 INFO L93 Difference]: Finished difference Result 20622 states and 53550 transitions. [2021-06-12 17:33:46,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:46,116 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:46,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:46,133 INFO L225 Difference]: With dead ends: 20622 [2021-06-12 17:33:46,133 INFO L226 Difference]: Without dead ends: 20622 [2021-06-12 17:33:46,134 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1119.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:46,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20622 states. [2021-06-12 17:33:46,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20622 to 9981. [2021-06-12 17:33:46,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:46,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-12 17:33:46,297 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-12 17:33:46,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:46,297 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-12 17:33:46,297 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:46,297 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-12 17:33:46,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:46,305 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:46,305 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:46,305 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-06-12 17:33:46,305 INFO L430 AbstractCegarLoop]: === Iteration 287 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:46,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:46,305 INFO L82 PathProgramCache]: Analyzing trace with hash 368903656, now seen corresponding path program 278 times [2021-06-12 17:33:46,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:46,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844334936] [2021-06-12 17:33:46,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:46,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:46,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:46,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844334936] [2021-06-12 17:33:46,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844334936] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:46,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:46,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:46,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102838726] [2021-06-12 17:33:46,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:46,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:46,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:46,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:46,566 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:47,332 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:47,474 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:47,633 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:47,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:47,750 INFO L93 Difference]: Finished difference Result 17687 states and 46076 transitions. [2021-06-12 17:33:47,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:47,750 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:47,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:47,765 INFO L225 Difference]: With dead ends: 17687 [2021-06-12 17:33:47,765 INFO L226 Difference]: Without dead ends: 17687 [2021-06-12 17:33:47,765 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1082.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:47,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17687 states. [2021-06-12 17:33:47,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17687 to 9949. [2021-06-12 17:33:47,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:47,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-06-12 17:33:47,938 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-06-12 17:33:47,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:47,938 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-06-12 17:33:47,938 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:47,938 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-06-12 17:33:47,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:47,945 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:47,945 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:47,945 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-06-12 17:33:47,945 INFO L430 AbstractCegarLoop]: === Iteration 288 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:47,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:47,946 INFO L82 PathProgramCache]: Analyzing trace with hash -651366650, now seen corresponding path program 279 times [2021-06-12 17:33:47,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:47,946 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043444235] [2021-06-12 17:33:47,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:48,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:48,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:48,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043444235] [2021-06-12 17:33:48,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043444235] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:48,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:48,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:48,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670588478] [2021-06-12 17:33:48,220 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:48,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:48,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:48,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:48,220 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:48,981 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:49,131 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:33:49,289 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:33:49,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:49,411 INFO L93 Difference]: Finished difference Result 16819 states and 43967 transitions. [2021-06-12 17:33:49,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:49,411 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:49,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:49,425 INFO L225 Difference]: With dead ends: 16819 [2021-06-12 17:33:49,426 INFO L226 Difference]: Without dead ends: 16819 [2021-06-12 17:33:49,426 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1096.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:49,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16819 states. [2021-06-12 17:33:49,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16819 to 9997. [2021-06-12 17:33:49,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9997 states, 9995 states have (on average 2.691145572786393) internal successors, (26898), 9996 states have internal predecessors, (26898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:49,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9997 states to 9997 states and 26898 transitions. [2021-06-12 17:33:49,579 INFO L78 Accepts]: Start accepts. Automaton has 9997 states and 26898 transitions. Word has length 114 [2021-06-12 17:33:49,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:49,579 INFO L482 AbstractCegarLoop]: Abstraction has 9997 states and 26898 transitions. [2021-06-12 17:33:49,579 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:49,579 INFO L276 IsEmpty]: Start isEmpty. Operand 9997 states and 26898 transitions. [2021-06-12 17:33:49,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:49,587 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:49,587 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:49,587 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2021-06-12 17:33:49,587 INFO L430 AbstractCegarLoop]: === Iteration 289 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:49,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:49,587 INFO L82 PathProgramCache]: Analyzing trace with hash -899913630, now seen corresponding path program 280 times [2021-06-12 17:33:49,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:49,587 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42117281] [2021-06-12 17:33:49,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:49,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:49,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:49,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42117281] [2021-06-12 17:33:49,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42117281] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:49,897 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:49,897 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:49,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632279217] [2021-06-12 17:33:49,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:49,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:49,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:49,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:49,898 INFO L87 Difference]: Start difference. First operand 9997 states and 26898 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:50,662 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:50,804 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:50,966 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:51,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:51,083 INFO L93 Difference]: Finished difference Result 16659 states and 43565 transitions. [2021-06-12 17:33:51,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:51,083 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:51,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:51,098 INFO L225 Difference]: With dead ends: 16659 [2021-06-12 17:33:51,098 INFO L226 Difference]: Without dead ends: 16659 [2021-06-12 17:33:51,098 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1131.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:51,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16659 states. [2021-06-12 17:33:51,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16659 to 9981. [2021-06-12 17:33:51,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:51,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-12 17:33:51,242 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-12 17:33:51,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:51,242 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-12 17:33:51,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:51,243 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-12 17:33:51,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:51,250 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:51,250 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:51,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2021-06-12 17:33:51,250 INFO L430 AbstractCegarLoop]: === Iteration 290 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:51,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:51,250 INFO L82 PathProgramCache]: Analyzing trace with hash -2056730934, now seen corresponding path program 281 times [2021-06-12 17:33:51,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:51,251 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963460184] [2021-06-12 17:33:51,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:51,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:51,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:51,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963460184] [2021-06-12 17:33:51,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963460184] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:51,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:51,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:51,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945040212] [2021-06-12 17:33:51,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:51,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:51,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:51,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:51,523 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:52,069 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-12 17:33:52,464 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:52,629 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:52,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:52,741 INFO L93 Difference]: Finished difference Result 13810 states and 36305 transitions. [2021-06-12 17:33:52,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:52,741 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:52,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:52,754 INFO L225 Difference]: With dead ends: 13810 [2021-06-12 17:33:52,754 INFO L226 Difference]: Without dead ends: 13810 [2021-06-12 17:33:52,754 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1105.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:52,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13810 states. [2021-06-12 17:33:52,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13810 to 9821. [2021-06-12 17:33:52,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9821 states, 9819 states have (on average 2.68785008656686) internal successors, (26392), 9820 states have internal predecessors, (26392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:52,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9821 states to 9821 states and 26392 transitions. [2021-06-12 17:33:52,877 INFO L78 Accepts]: Start accepts. Automaton has 9821 states and 26392 transitions. Word has length 114 [2021-06-12 17:33:52,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:52,877 INFO L482 AbstractCegarLoop]: Abstraction has 9821 states and 26392 transitions. [2021-06-12 17:33:52,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:52,877 INFO L276 IsEmpty]: Start isEmpty. Operand 9821 states and 26392 transitions. [2021-06-12 17:33:52,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:52,885 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:52,885 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:52,885 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2021-06-12 17:33:52,885 INFO L430 AbstractCegarLoop]: === Iteration 291 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:52,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:52,885 INFO L82 PathProgramCache]: Analyzing trace with hash 105338470, now seen corresponding path program 282 times [2021-06-12 17:33:52,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:52,886 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931410313] [2021-06-12 17:33:52,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:53,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:53,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:53,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931410313] [2021-06-12 17:33:53,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931410313] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:53,159 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:53,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:53,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322556922] [2021-06-12 17:33:53,160 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:53,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:53,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:53,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:53,160 INFO L87 Difference]: Start difference. First operand 9821 states and 26392 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:54,067 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:54,230 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:54,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:54,386 INFO L93 Difference]: Finished difference Result 17772 states and 46792 transitions. [2021-06-12 17:33:54,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:54,386 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:54,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:54,401 INFO L225 Difference]: With dead ends: 17772 [2021-06-12 17:33:54,401 INFO L226 Difference]: Without dead ends: 17772 [2021-06-12 17:33:54,401 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1083.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:54,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17772 states. [2021-06-12 17:33:54,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17772 to 9981. [2021-06-12 17:33:54,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:54,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-12 17:33:54,548 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-12 17:33:54,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:54,548 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-12 17:33:54,548 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:54,548 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-12 17:33:54,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:54,556 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:54,556 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:54,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2021-06-12 17:33:54,556 INFO L430 AbstractCegarLoop]: === Iteration 292 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:54,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:54,556 INFO L82 PathProgramCache]: Analyzing trace with hash 2018575206, now seen corresponding path program 283 times [2021-06-12 17:33:54,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:54,556 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507744465] [2021-06-12 17:33:54,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:54,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:54,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:54,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507744465] [2021-06-12 17:33:54,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507744465] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:54,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:54,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:54,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996768636] [2021-06-12 17:33:54,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:54,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:54,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:54,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:54,828 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:55,601 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:55,743 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:55,905 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:56,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:56,039 INFO L93 Difference]: Finished difference Result 20300 states and 53341 transitions. [2021-06-12 17:33:56,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:56,040 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:56,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:56,057 INFO L225 Difference]: With dead ends: 20300 [2021-06-12 17:33:56,057 INFO L226 Difference]: Without dead ends: 20300 [2021-06-12 17:33:56,058 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1088.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:56,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20300 states. [2021-06-12 17:33:56,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20300 to 9997. [2021-06-12 17:33:56,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9997 states, 9995 states have (on average 2.691145572786393) internal successors, (26898), 9996 states have internal predecessors, (26898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:56,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9997 states to 9997 states and 26898 transitions. [2021-06-12 17:33:56,228 INFO L78 Accepts]: Start accepts. Automaton has 9997 states and 26898 transitions. Word has length 114 [2021-06-12 17:33:56,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:56,229 INFO L482 AbstractCegarLoop]: Abstraction has 9997 states and 26898 transitions. [2021-06-12 17:33:56,229 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:56,229 INFO L276 IsEmpty]: Start isEmpty. Operand 9997 states and 26898 transitions. [2021-06-12 17:33:56,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:56,276 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:56,276 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:56,276 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2021-06-12 17:33:56,276 INFO L430 AbstractCegarLoop]: === Iteration 293 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:56,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:56,276 INFO L82 PathProgramCache]: Analyzing trace with hash 930102020, now seen corresponding path program 284 times [2021-06-12 17:33:56,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:56,277 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396718075] [2021-06-12 17:33:56,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:56,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:56,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:56,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396718075] [2021-06-12 17:33:56,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396718075] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:56,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:56,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:56,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146094198] [2021-06-12 17:33:56,551 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:56,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:56,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:56,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:56,551 INFO L87 Difference]: Start difference. First operand 9997 states and 26898 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:57,342 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:57,497 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:33:57,660 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:33:57,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:57,800 INFO L93 Difference]: Finished difference Result 18640 states and 48741 transitions. [2021-06-12 17:33:57,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:57,801 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:57,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:57,817 INFO L225 Difference]: With dead ends: 18640 [2021-06-12 17:33:57,817 INFO L226 Difference]: Without dead ends: 18640 [2021-06-12 17:33:57,817 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1095.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:57,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18640 states. [2021-06-12 17:33:57,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18640 to 9949. [2021-06-12 17:33:57,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:57,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-06-12 17:33:57,967 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-06-12 17:33:57,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:57,967 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-06-12 17:33:57,967 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:57,967 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-06-12 17:33:57,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:57,975 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:57,975 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:57,975 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2021-06-12 17:33:57,975 INFO L430 AbstractCegarLoop]: === Iteration 294 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:57,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:57,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1954645466, now seen corresponding path program 285 times [2021-06-12 17:33:57,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:57,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348751449] [2021-06-12 17:33:57,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:58,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:58,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:58,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348751449] [2021-06-12 17:33:58,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348751449] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:58,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:58,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:58,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130619281] [2021-06-12 17:33:58,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:58,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:58,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:58,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:58,237 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:59,046 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:33:59,190 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:33:59,353 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:33:59,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:33:59,502 INFO L93 Difference]: Finished difference Result 21630 states and 56520 transitions. [2021-06-12 17:33:59,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:33:59,502 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:33:59,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:33:59,522 INFO L225 Difference]: With dead ends: 21630 [2021-06-12 17:33:59,522 INFO L226 Difference]: Without dead ends: 21630 [2021-06-12 17:33:59,522 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1072.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:33:59,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21630 states. [2021-06-12 17:33:59,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21630 to 9981. [2021-06-12 17:33:59,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:59,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-12 17:33:59,695 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-12 17:33:59,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:33:59,695 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-12 17:33:59,695 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:33:59,695 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-12 17:33:59,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:33:59,702 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:33:59,702 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:33:59,702 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2021-06-12 17:33:59,702 INFO L430 AbstractCegarLoop]: === Iteration 295 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:33:59,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:33:59,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1251848644, now seen corresponding path program 286 times [2021-06-12 17:33:59,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:33:59,703 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611442185] [2021-06-12 17:33:59,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:33:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:33:59,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:33:59,964 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:33:59,964 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611442185] [2021-06-12 17:33:59,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611442185] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:33:59,964 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:33:59,964 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:33:59,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354749349] [2021-06-12 17:33:59,964 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:33:59,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:33:59,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:33:59,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:33:59,965 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:00,637 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-12 17:34:00,767 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:00,921 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:34:01,080 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:34:01,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:01,236 INFO L93 Difference]: Finished difference Result 22443 states and 58324 transitions. [2021-06-12 17:34:01,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:01,237 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:01,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:01,255 INFO L225 Difference]: With dead ends: 22443 [2021-06-12 17:34:01,256 INFO L226 Difference]: Without dead ends: 22443 [2021-06-12 17:34:01,256 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1100.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:01,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22443 states. [2021-06-12 17:34:01,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22443 to 9965. [2021-06-12 17:34:01,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6905550536986853) internal successors, (26806), 9964 states have internal predecessors, (26806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:01,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26806 transitions. [2021-06-12 17:34:01,439 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26806 transitions. Word has length 114 [2021-06-12 17:34:01,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:01,439 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26806 transitions. [2021-06-12 17:34:01,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:01,440 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26806 transitions. [2021-06-12 17:34:01,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:01,448 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:01,448 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:01,448 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2021-06-12 17:34:01,448 INFO L430 AbstractCegarLoop]: === Iteration 296 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:01,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:01,448 INFO L82 PathProgramCache]: Analyzing trace with hash 2049712104, now seen corresponding path program 287 times [2021-06-12 17:34:01,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:01,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304839624] [2021-06-12 17:34:01,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:01,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:01,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:01,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304839624] [2021-06-12 17:34:01,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304839624] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:01,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:01,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:01,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422256879] [2021-06-12 17:34:01,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:01,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:01,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:01,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:01,711 INFO L87 Difference]: Start difference. First operand 9965 states and 26806 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:02,474 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:02,624 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:34:02,805 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:34:02,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:02,942 INFO L93 Difference]: Finished difference Result 21769 states and 56737 transitions. [2021-06-12 17:34:02,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:02,942 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:02,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:02,960 INFO L225 Difference]: With dead ends: 21769 [2021-06-12 17:34:02,960 INFO L226 Difference]: Without dead ends: 21769 [2021-06-12 17:34:02,960 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1110.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:02,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21769 states. [2021-06-12 17:34:03,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21769 to 9981. [2021-06-12 17:34:03,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:03,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-12 17:34:03,141 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-12 17:34:03,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:03,141 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-12 17:34:03,141 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:03,141 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-12 17:34:03,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:03,149 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:03,149 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:03,149 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2021-06-12 17:34:03,149 INFO L430 AbstractCegarLoop]: === Iteration 297 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:03,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:03,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1801165124, now seen corresponding path program 288 times [2021-06-12 17:34:03,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:03,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338864698] [2021-06-12 17:34:03,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:03,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:03,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:03,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338864698] [2021-06-12 17:34:03,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338864698] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:03,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:03,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:03,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030110304] [2021-06-12 17:34:03,409 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:03,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:03,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:03,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:03,409 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:04,198 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:04,341 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:04,505 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:04,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:04,635 INFO L93 Difference]: Finished difference Result 18834 states and 49263 transitions. [2021-06-12 17:34:04,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:04,635 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:04,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:04,651 INFO L225 Difference]: With dead ends: 18834 [2021-06-12 17:34:04,651 INFO L226 Difference]: Without dead ends: 18834 [2021-06-12 17:34:04,651 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1081.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:04,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18834 states. [2021-06-12 17:34:04,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18834 to 9917. [2021-06-12 17:34:04,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 9915 states have (on average 2.6896621280887545) internal successors, (26668), 9916 states have internal predecessors, (26668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:04,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 26668 transitions. [2021-06-12 17:34:04,843 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 26668 transitions. Word has length 114 [2021-06-12 17:34:04,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:04,843 INFO L482 AbstractCegarLoop]: Abstraction has 9917 states and 26668 transitions. [2021-06-12 17:34:04,843 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:04,844 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 26668 transitions. [2021-06-12 17:34:04,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:04,851 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:04,851 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:04,851 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2021-06-12 17:34:04,851 INFO L430 AbstractCegarLoop]: === Iteration 298 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:04,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:04,851 INFO L82 PathProgramCache]: Analyzing trace with hash -2089847640, now seen corresponding path program 289 times [2021-06-12 17:34:04,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:04,851 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914340479] [2021-06-12 17:34:04,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:05,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:05,111 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:05,111 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914340479] [2021-06-12 17:34:05,111 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914340479] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:05,111 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:05,111 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:05,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944845649] [2021-06-12 17:34:05,111 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:05,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:05,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:05,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:05,112 INFO L87 Difference]: Start difference. First operand 9917 states and 26668 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:05,901 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:06,048 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:06,208 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:06,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:06,360 INFO L93 Difference]: Finished difference Result 22188 states and 58050 transitions. [2021-06-12 17:34:06,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:06,360 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:06,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:06,379 INFO L225 Difference]: With dead ends: 22188 [2021-06-12 17:34:06,379 INFO L226 Difference]: Without dead ends: 22188 [2021-06-12 17:34:06,380 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1076.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:06,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22188 states. [2021-06-12 17:34:06,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22188 to 9981. [2021-06-12 17:34:06,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:06,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-12 17:34:06,559 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-12 17:34:06,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:06,559 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-12 17:34:06,559 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:06,559 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-12 17:34:06,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:06,566 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:06,566 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:06,566 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2021-06-12 17:34:06,566 INFO L430 AbstractCegarLoop]: === Iteration 299 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:06,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:06,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1116646470, now seen corresponding path program 290 times [2021-06-12 17:34:06,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:06,567 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939810108] [2021-06-12 17:34:06,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:06,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:06,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:06,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939810108] [2021-06-12 17:34:06,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939810108] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:06,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:06,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:06,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367868205] [2021-06-12 17:34:06,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:06,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:06,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:06,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:06,873 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:07,638 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:07,791 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:34:07,947 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:34:08,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:08,088 INFO L93 Difference]: Finished difference Result 23001 states and 59854 transitions. [2021-06-12 17:34:08,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:08,088 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:08,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:08,110 INFO L225 Difference]: With dead ends: 23001 [2021-06-12 17:34:08,110 INFO L226 Difference]: Without dead ends: 23001 [2021-06-12 17:34:08,110 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1127.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:08,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23001 states. [2021-06-12 17:34:08,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23001 to 9965. [2021-06-12 17:34:08,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9965 states, 9963 states have (on average 2.6905550536986853) internal successors, (26806), 9964 states have internal predecessors, (26806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:08,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9965 states to 9965 states and 26806 transitions. [2021-06-12 17:34:08,294 INFO L78 Accepts]: Start accepts. Automaton has 9965 states and 26806 transitions. Word has length 114 [2021-06-12 17:34:08,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:08,294 INFO L482 AbstractCegarLoop]: Abstraction has 9965 states and 26806 transitions. [2021-06-12 17:34:08,294 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:08,294 INFO L276 IsEmpty]: Start isEmpty. Operand 9965 states and 26806 transitions. [2021-06-12 17:34:08,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:08,301 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:08,301 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:08,301 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2021-06-12 17:34:08,301 INFO L430 AbstractCegarLoop]: === Iteration 300 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:08,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:08,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1914509930, now seen corresponding path program 291 times [2021-06-12 17:34:08,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:08,302 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357875439] [2021-06-12 17:34:08,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:08,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:08,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:08,562 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357875439] [2021-06-12 17:34:08,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357875439] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:08,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:08,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:08,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132098839] [2021-06-12 17:34:08,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:08,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:08,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:08,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:08,563 INFO L87 Difference]: Start difference. First operand 9965 states and 26806 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:09,371 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:09,525 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:34:09,703 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:34:09,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:09,875 INFO L93 Difference]: Finished difference Result 26114 states and 67804 transitions. [2021-06-12 17:34:09,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:09,875 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:09,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:09,899 INFO L225 Difference]: With dead ends: 26114 [2021-06-12 17:34:09,899 INFO L226 Difference]: Without dead ends: 26114 [2021-06-12 17:34:09,899 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1098.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:09,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26114 states. [2021-06-12 17:34:10,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26114 to 9981. [2021-06-12 17:34:10,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:10,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-12 17:34:10,096 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-12 17:34:10,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:10,096 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-12 17:34:10,096 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:10,096 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-12 17:34:10,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:10,104 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:10,104 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:10,104 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2021-06-12 17:34:10,105 INFO L430 AbstractCegarLoop]: === Iteration 301 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:10,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:10,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1665962950, now seen corresponding path program 292 times [2021-06-12 17:34:10,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:10,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531716779] [2021-06-12 17:34:10,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:10,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:10,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:10,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531716779] [2021-06-12 17:34:10,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531716779] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:10,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:10,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:10,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912678434] [2021-06-12 17:34:10,365 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:10,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:10,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:10,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:10,365 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:11,160 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:11,329 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:11,492 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:11,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:11,636 INFO L93 Difference]: Finished difference Result 23179 states and 60330 transitions. [2021-06-12 17:34:11,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:11,637 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:11,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:11,657 INFO L225 Difference]: With dead ends: 23179 [2021-06-12 17:34:11,657 INFO L226 Difference]: Without dead ends: 23179 [2021-06-12 17:34:11,658 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1108.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:11,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23179 states. [2021-06-12 17:34:11,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23179 to 9949. [2021-06-12 17:34:11,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:11,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-06-12 17:34:11,839 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-06-12 17:34:11,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:11,839 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-06-12 17:34:11,840 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:11,840 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-06-12 17:34:11,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:11,847 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:11,847 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:11,847 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2021-06-12 17:34:11,848 INFO L430 AbstractCegarLoop]: === Iteration 302 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:11,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:11,848 INFO L82 PathProgramCache]: Analyzing trace with hash 645692644, now seen corresponding path program 293 times [2021-06-12 17:34:11,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:11,848 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922090008] [2021-06-12 17:34:11,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:12,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:12,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:12,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922090008] [2021-06-12 17:34:12,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922090008] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:12,123 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:12,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:12,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690241058] [2021-06-12 17:34:12,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:12,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:12,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:12,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:12,123 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:12,895 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:13,049 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:34:13,211 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:34:13,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:13,351 INFO L93 Difference]: Finished difference Result 22311 states and 58221 transitions. [2021-06-12 17:34:13,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:13,352 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:13,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:13,370 INFO L225 Difference]: With dead ends: 22311 [2021-06-12 17:34:13,371 INFO L226 Difference]: Without dead ends: 22311 [2021-06-12 17:34:13,371 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1106.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:13,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22311 states. [2021-06-12 17:34:13,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22311 to 9997. [2021-06-12 17:34:13,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9997 states, 9995 states have (on average 2.691145572786393) internal successors, (26898), 9996 states have internal predecessors, (26898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:13,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9997 states to 9997 states and 26898 transitions. [2021-06-12 17:34:13,558 INFO L78 Accepts]: Start accepts. Automaton has 9997 states and 26898 transitions. Word has length 114 [2021-06-12 17:34:13,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:13,558 INFO L482 AbstractCegarLoop]: Abstraction has 9997 states and 26898 transitions. [2021-06-12 17:34:13,558 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:13,558 INFO L276 IsEmpty]: Start isEmpty. Operand 9997 states and 26898 transitions. [2021-06-12 17:34:13,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:13,565 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:13,565 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:13,565 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2021-06-12 17:34:13,565 INFO L430 AbstractCegarLoop]: === Iteration 303 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:13,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:13,566 INFO L82 PathProgramCache]: Analyzing trace with hash 397145664, now seen corresponding path program 294 times [2021-06-12 17:34:13,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:13,566 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55409517] [2021-06-12 17:34:13,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:13,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:13,833 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:13,833 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55409517] [2021-06-12 17:34:13,833 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55409517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:13,833 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:13,833 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:13,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176146148] [2021-06-12 17:34:13,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:13,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:13,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:13,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:13,834 INFO L87 Difference]: Start difference. First operand 9997 states and 26898 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:14,620 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:14,766 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:14,928 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:15,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:15,070 INFO L93 Difference]: Finished difference Result 22151 states and 57819 transitions. [2021-06-12 17:34:15,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:15,070 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:15,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:15,090 INFO L225 Difference]: With dead ends: 22151 [2021-06-12 17:34:15,090 INFO L226 Difference]: Without dead ends: 22151 [2021-06-12 17:34:15,090 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1082.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:15,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22151 states. [2021-06-12 17:34:15,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22151 to 9981. [2021-06-12 17:34:15,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9979 states have (on average 2.690850786651969) internal successors, (26852), 9980 states have internal predecessors, (26852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:15,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 26852 transitions. [2021-06-12 17:34:15,259 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 26852 transitions. Word has length 114 [2021-06-12 17:34:15,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:15,259 INFO L482 AbstractCegarLoop]: Abstraction has 9981 states and 26852 transitions. [2021-06-12 17:34:15,259 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:15,259 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 26852 transitions. [2021-06-12 17:34:15,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:15,267 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:15,267 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:15,267 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2021-06-12 17:34:15,267 INFO L430 AbstractCegarLoop]: === Iteration 304 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:15,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:15,267 INFO L82 PathProgramCache]: Analyzing trace with hash -759671640, now seen corresponding path program 295 times [2021-06-12 17:34:15,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:15,267 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190926806] [2021-06-12 17:34:15,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:15,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:15,576 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:15,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190926806] [2021-06-12 17:34:15,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190926806] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:15,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:15,576 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:15,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346480962] [2021-06-12 17:34:15,576 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:15,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:15,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:15,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:15,577 INFO L87 Difference]: Start difference. First operand 9981 states and 26852 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:16,481 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:16,644 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:16,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:16,766 INFO L93 Difference]: Finished difference Result 19302 states and 50559 transitions. [2021-06-12 17:34:16,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:16,766 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:16,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:16,783 INFO L225 Difference]: With dead ends: 19302 [2021-06-12 17:34:16,783 INFO L226 Difference]: Without dead ends: 19302 [2021-06-12 17:34:16,783 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1077.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:16,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19302 states. [2021-06-12 17:34:16,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19302 to 9853. [2021-06-12 17:34:16,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9853 states, 9851 states have (on average 2.688458024566034) internal successors, (26484), 9852 states have internal predecessors, (26484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:16,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9853 states to 9853 states and 26484 transitions. [2021-06-12 17:34:16,941 INFO L78 Accepts]: Start accepts. Automaton has 9853 states and 26484 transitions. Word has length 114 [2021-06-12 17:34:16,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:16,941 INFO L482 AbstractCegarLoop]: Abstraction has 9853 states and 26484 transitions. [2021-06-12 17:34:16,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:16,941 INFO L276 IsEmpty]: Start isEmpty. Operand 9853 states and 26484 transitions. [2021-06-12 17:34:16,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:16,948 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:16,948 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:16,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2021-06-12 17:34:16,948 INFO L430 AbstractCegarLoop]: === Iteration 305 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:16,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:16,949 INFO L82 PathProgramCache]: Analyzing trace with hash 381813514, now seen corresponding path program 296 times [2021-06-12 17:34:16,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:16,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657179328] [2021-06-12 17:34:16,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:17,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:17,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:17,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657179328] [2021-06-12 17:34:17,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657179328] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:17,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:17,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:17,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649296803] [2021-06-12 17:34:17,208 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:17,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:17,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:17,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:17,208 INFO L87 Difference]: Start difference. First operand 9853 states and 26484 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:17,996 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:18,138 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:18,297 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:18,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:18,428 INFO L93 Difference]: Finished difference Result 17286 states and 45418 transitions. [2021-06-12 17:34:18,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:18,429 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:18,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:18,444 INFO L225 Difference]: With dead ends: 17286 [2021-06-12 17:34:18,445 INFO L226 Difference]: Without dead ends: 17286 [2021-06-12 17:34:18,445 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1102.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:18,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17286 states. [2021-06-12 17:34:18,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17286 to 9933. [2021-06-12 17:34:18,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:18,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-06-12 17:34:18,598 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-06-12 17:34:18,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:18,598 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-06-12 17:34:18,598 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:18,599 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-06-12 17:34:18,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:18,606 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:18,606 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:18,606 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2021-06-12 17:34:18,606 INFO L430 AbstractCegarLoop]: === Iteration 306 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:18,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:18,607 INFO L82 PathProgramCache]: Analyzing trace with hash -706659672, now seen corresponding path program 297 times [2021-06-12 17:34:18,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:18,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641776011] [2021-06-12 17:34:18,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:18,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:18,871 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:18,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641776011] [2021-06-12 17:34:18,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641776011] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:18,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:18,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:18,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434635581] [2021-06-12 17:34:18,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:18,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:18,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:18,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:18,872 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:19,662 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:19,841 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:34:19,999 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:34:20,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:20,138 INFO L93 Difference]: Finished difference Result 18099 states and 47222 transitions. [2021-06-12 17:34:20,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:20,139 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:20,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:20,154 INFO L225 Difference]: With dead ends: 18099 [2021-06-12 17:34:20,154 INFO L226 Difference]: Without dead ends: 18099 [2021-06-12 17:34:20,154 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1093.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:20,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18099 states. [2021-06-12 17:34:20,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18099 to 9917. [2021-06-12 17:34:20,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 9915 states have (on average 2.6896621280887545) internal successors, (26668), 9916 states have internal predecessors, (26668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:20,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 26668 transitions. [2021-06-12 17:34:20,304 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 26668 transitions. Word has length 114 [2021-06-12 17:34:20,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:20,304 INFO L482 AbstractCegarLoop]: Abstraction has 9917 states and 26668 transitions. [2021-06-12 17:34:20,304 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:20,304 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 26668 transitions. [2021-06-12 17:34:20,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:20,312 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:20,312 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:20,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2021-06-12 17:34:20,312 INFO L430 AbstractCegarLoop]: === Iteration 307 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:20,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:20,312 INFO L82 PathProgramCache]: Analyzing trace with hash 91203788, now seen corresponding path program 298 times [2021-06-12 17:34:20,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:20,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652058018] [2021-06-12 17:34:20,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:20,576 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:20,577 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652058018] [2021-06-12 17:34:20,577 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652058018] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:20,577 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:20,577 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:20,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253126143] [2021-06-12 17:34:20,577 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:20,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:20,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:20,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:20,577 INFO L87 Difference]: Start difference. First operand 9917 states and 26668 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:21,359 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:21,511 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:34:21,672 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:34:21,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:21,825 INFO L93 Difference]: Finished difference Result 21212 states and 55172 transitions. [2021-06-12 17:34:21,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:21,825 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:21,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:21,844 INFO L225 Difference]: With dead ends: 21212 [2021-06-12 17:34:21,844 INFO L226 Difference]: Without dead ends: 21212 [2021-06-12 17:34:21,844 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1088.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:21,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21212 states. [2021-06-12 17:34:22,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21212 to 9933. [2021-06-12 17:34:22,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:22,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-06-12 17:34:22,030 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-06-12 17:34:22,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:22,030 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-06-12 17:34:22,030 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:22,030 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-06-12 17:34:22,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:22,037 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:22,037 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:22,037 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2021-06-12 17:34:22,037 INFO L430 AbstractCegarLoop]: === Iteration 308 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:22,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:22,038 INFO L82 PathProgramCache]: Analyzing trace with hash -157343192, now seen corresponding path program 299 times [2021-06-12 17:34:22,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:22,038 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586790878] [2021-06-12 17:34:22,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:22,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:22,295 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:22,295 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586790878] [2021-06-12 17:34:22,295 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586790878] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:22,295 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:22,295 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:22,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624660764] [2021-06-12 17:34:22,295 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:22,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:22,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:22,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:22,295 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:23,058 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:23,200 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:23,358 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:23,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:23,475 INFO L93 Difference]: Finished difference Result 18277 states and 47698 transitions. [2021-06-12 17:34:23,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:23,475 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:23,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:23,491 INFO L225 Difference]: With dead ends: 18277 [2021-06-12 17:34:23,491 INFO L226 Difference]: Without dead ends: 18277 [2021-06-12 17:34:23,492 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1077.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:23,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18277 states. [2021-06-12 17:34:23,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18277 to 9901. [2021-06-12 17:34:23,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9901 states, 9899 states have (on average 2.689362561874937) internal successors, (26622), 9900 states have internal predecessors, (26622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:23,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9901 states to 9901 states and 26622 transitions. [2021-06-12 17:34:23,649 INFO L78 Accepts]: Start accepts. Automaton has 9901 states and 26622 transitions. Word has length 114 [2021-06-12 17:34:23,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:23,649 INFO L482 AbstractCegarLoop]: Abstraction has 9901 states and 26622 transitions. [2021-06-12 17:34:23,649 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:23,649 INFO L276 IsEmpty]: Start isEmpty. Operand 9901 states and 26622 transitions. [2021-06-12 17:34:23,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:23,657 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:23,657 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:23,657 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2021-06-12 17:34:23,657 INFO L430 AbstractCegarLoop]: === Iteration 309 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:23,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:23,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1177613498, now seen corresponding path program 300 times [2021-06-12 17:34:23,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:23,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434845486] [2021-06-12 17:34:23,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:23,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:23,969 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:23,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434845486] [2021-06-12 17:34:23,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434845486] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:23,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:23,970 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:23,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454873101] [2021-06-12 17:34:23,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:23,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:23,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:23,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:23,970 INFO L87 Difference]: Start difference. First operand 9901 states and 26622 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:24,725 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:24,876 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:34:25,036 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:34:25,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:25,177 INFO L93 Difference]: Finished difference Result 21722 states and 56564 transitions. [2021-06-12 17:34:25,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:25,178 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:25,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:25,197 INFO L225 Difference]: With dead ends: 21722 [2021-06-12 17:34:25,197 INFO L226 Difference]: Without dead ends: 21722 [2021-06-12 17:34:25,198 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1090.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:25,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21722 states. [2021-06-12 17:34:25,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21722 to 9949. [2021-06-12 17:34:25,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9949 states, 9947 states have (on average 2.690258369357595) internal successors, (26760), 9948 states have internal predecessors, (26760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:25,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9949 states to 9949 states and 26760 transitions. [2021-06-12 17:34:25,368 INFO L78 Accepts]: Start accepts. Automaton has 9949 states and 26760 transitions. Word has length 114 [2021-06-12 17:34:25,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:25,368 INFO L482 AbstractCegarLoop]: Abstraction has 9949 states and 26760 transitions. [2021-06-12 17:34:25,368 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:25,368 INFO L276 IsEmpty]: Start isEmpty. Operand 9949 states and 26760 transitions. [2021-06-12 17:34:25,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:25,376 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:25,376 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:25,376 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2021-06-12 17:34:25,376 INFO L430 AbstractCegarLoop]: === Iteration 310 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:25,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:25,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1426160478, now seen corresponding path program 301 times [2021-06-12 17:34:25,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:25,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262721130] [2021-06-12 17:34:25,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:25,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:25,645 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:25,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262721130] [2021-06-12 17:34:25,645 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262721130] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:25,645 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:25,645 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:25,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391260497] [2021-06-12 17:34:25,645 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:25,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:25,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:25,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:25,646 INFO L87 Difference]: Start difference. First operand 9949 states and 26760 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:26,451 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:26,597 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:26,759 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:26,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:26,901 INFO L93 Difference]: Finished difference Result 21562 states and 56162 transitions. [2021-06-12 17:34:26,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:26,901 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:26,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:26,920 INFO L225 Difference]: With dead ends: 21562 [2021-06-12 17:34:26,920 INFO L226 Difference]: Without dead ends: 21562 [2021-06-12 17:34:26,920 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1086.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:26,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21562 states. [2021-06-12 17:34:27,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21562 to 9933. [2021-06-12 17:34:27,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:27,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-06-12 17:34:27,091 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-06-12 17:34:27,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:27,091 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-06-12 17:34:27,091 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:27,091 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-06-12 17:34:27,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:27,099 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:27,099 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:27,099 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2021-06-12 17:34:27,099 INFO L430 AbstractCegarLoop]: === Iteration 311 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:27,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:27,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1711989514, now seen corresponding path program 302 times [2021-06-12 17:34:27,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:27,100 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828915066] [2021-06-12 17:34:27,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:27,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:27,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:27,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828915066] [2021-06-12 17:34:27,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828915066] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:27,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:27,371 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:27,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193843652] [2021-06-12 17:34:27,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:27,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:27,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:27,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:27,371 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:28,304 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:28,467 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:28,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:28,592 INFO L93 Difference]: Finished difference Result 18713 states and 48902 transitions. [2021-06-12 17:34:28,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:28,592 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:28,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:28,608 INFO L225 Difference]: With dead ends: 18713 [2021-06-12 17:34:28,608 INFO L226 Difference]: Without dead ends: 18713 [2021-06-12 17:34:28,609 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1084.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:28,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18713 states. [2021-06-12 17:34:28,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18713 to 9869. [2021-06-12 17:34:28,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9869 states, 9867 states have (on average 2.6887605148474716) internal successors, (26530), 9868 states have internal predecessors, (26530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:28,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9869 states to 9869 states and 26530 transitions. [2021-06-12 17:34:28,766 INFO L78 Accepts]: Start accepts. Automaton has 9869 states and 26530 transitions. Word has length 114 [2021-06-12 17:34:28,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:28,766 INFO L482 AbstractCegarLoop]: Abstraction has 9869 states and 26530 transitions. [2021-06-12 17:34:28,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:28,766 INFO L276 IsEmpty]: Start isEmpty. Operand 9869 states and 26530 transitions. [2021-06-12 17:34:28,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:28,774 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:28,774 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:28,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2021-06-12 17:34:28,774 INFO L430 AbstractCegarLoop]: === Iteration 312 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:28,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:28,774 INFO L82 PathProgramCache]: Analyzing trace with hash -773253916, now seen corresponding path program 303 times [2021-06-12 17:34:28,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:28,774 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478381413] [2021-06-12 17:34:28,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:29,059 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:29,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478381413] [2021-06-12 17:34:29,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478381413] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:29,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:29,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:29,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245517228] [2021-06-12 17:34:29,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:29,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:29,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:29,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:29,060 INFO L87 Difference]: Start difference. First operand 9869 states and 26530 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:29,817 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:29,968 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:34:30,129 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:34:30,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:30,253 INFO L93 Difference]: Finished difference Result 17377 states and 45497 transitions. [2021-06-12 17:34:30,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:30,254 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:30,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:30,269 INFO L225 Difference]: With dead ends: 17377 [2021-06-12 17:34:30,269 INFO L226 Difference]: Without dead ends: 17377 [2021-06-12 17:34:30,269 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1109.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:30,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17377 states. [2021-06-12 17:34:30,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17377 to 9933. [2021-06-12 17:34:30,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9933 states, 9931 states have (on average 2.689960729030309) internal successors, (26714), 9932 states have internal predecessors, (26714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:30,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9933 states to 9933 states and 26714 transitions. [2021-06-12 17:34:30,434 INFO L78 Accepts]: Start accepts. Automaton has 9933 states and 26714 transitions. Word has length 114 [2021-06-12 17:34:30,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:30,434 INFO L482 AbstractCegarLoop]: Abstraction has 9933 states and 26714 transitions. [2021-06-12 17:34:30,434 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:30,434 INFO L276 IsEmpty]: Start isEmpty. Operand 9933 states and 26714 transitions. [2021-06-12 17:34:30,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:30,442 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:30,442 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:30,442 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2021-06-12 17:34:30,442 INFO L430 AbstractCegarLoop]: === Iteration 313 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:30,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:30,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1021800896, now seen corresponding path program 304 times [2021-06-12 17:34:30,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:30,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981285530] [2021-06-12 17:34:30,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:30,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:30,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:30,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981285530] [2021-06-12 17:34:30,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981285530] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:30,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:30,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:30,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450816315] [2021-06-12 17:34:30,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:30,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:30,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:30,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:30,720 INFO L87 Difference]: Start difference. First operand 9933 states and 26714 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:31,495 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:31,643 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:31,809 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:31,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:31,939 INFO L93 Difference]: Finished difference Result 17217 states and 45095 transitions. [2021-06-12 17:34:31,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:31,939 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:31,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:31,954 INFO L225 Difference]: With dead ends: 17217 [2021-06-12 17:34:31,954 INFO L226 Difference]: Without dead ends: 17217 [2021-06-12 17:34:31,955 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1097.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:31,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17217 states. [2021-06-12 17:34:32,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17217 to 9917. [2021-06-12 17:34:32,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9917 states, 9915 states have (on average 2.6896621280887545) internal successors, (26668), 9916 states have internal predecessors, (26668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:32,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9917 states to 9917 states and 26668 transitions. [2021-06-12 17:34:32,098 INFO L78 Accepts]: Start accepts. Automaton has 9917 states and 26668 transitions. Word has length 114 [2021-06-12 17:34:32,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:32,098 INFO L482 AbstractCegarLoop]: Abstraction has 9917 states and 26668 transitions. [2021-06-12 17:34:32,098 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:32,098 INFO L276 IsEmpty]: Start isEmpty. Operand 9917 states and 26668 transitions. [2021-06-12 17:34:32,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:32,106 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:32,106 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:32,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2021-06-12 17:34:32,106 INFO L430 AbstractCegarLoop]: === Iteration 314 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:32,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:32,106 INFO L82 PathProgramCache]: Analyzing trace with hash 2116349096, now seen corresponding path program 305 times [2021-06-12 17:34:32,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:32,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419008189] [2021-06-12 17:34:32,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:32,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:32,434 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:32,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419008189] [2021-06-12 17:34:32,434 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419008189] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:32,434 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:32,434 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:32,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948664765] [2021-06-12 17:34:32,434 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:32,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:32,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:32,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:32,435 INFO L87 Difference]: Start difference. First operand 9917 states and 26668 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:33,357 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:33,528 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:33,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:33,659 INFO L93 Difference]: Finished difference Result 17505 states and 45923 transitions. [2021-06-12 17:34:33,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:33,659 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:33,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:33,675 INFO L225 Difference]: With dead ends: 17505 [2021-06-12 17:34:33,675 INFO L226 Difference]: Without dead ends: 17505 [2021-06-12 17:34:33,675 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1139.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:33,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17505 states. [2021-06-12 17:34:33,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17505 to 9885. [2021-06-12 17:34:33,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9885 states, 9883 states have (on average 2.6890620257006983) internal successors, (26576), 9884 states have internal predecessors, (26576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:33,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9885 states to 9885 states and 26576 transitions. [2021-06-12 17:34:33,812 INFO L78 Accepts]: Start accepts. Automaton has 9885 states and 26576 transitions. Word has length 114 [2021-06-12 17:34:33,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:33,812 INFO L482 AbstractCegarLoop]: Abstraction has 9885 states and 26576 transitions. [2021-06-12 17:34:33,813 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:33,813 INFO L276 IsEmpty]: Start isEmpty. Operand 9885 states and 26576 transitions. [2021-06-12 17:34:33,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:33,820 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:33,820 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:33,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2021-06-12 17:34:33,820 INFO L430 AbstractCegarLoop]: === Iteration 315 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:33,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:33,820 INFO L82 PathProgramCache]: Analyzing trace with hash -470435062, now seen corresponding path program 306 times [2021-06-12 17:34:33,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:33,820 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823765893] [2021-06-12 17:34:33,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:34,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:34,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:34,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823765893] [2021-06-12 17:34:34,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823765893] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:34,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:34,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:34,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064167189] [2021-06-12 17:34:34,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:34,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:34,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:34,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:34,120 INFO L87 Difference]: Start difference. First operand 9885 states and 26576 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:35,038 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:35,200 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:35,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:35,310 INFO L93 Difference]: Finished difference Result 14220 states and 37459 transitions. [2021-06-12 17:34:35,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:35,310 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:35,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:35,322 INFO L225 Difference]: With dead ends: 14220 [2021-06-12 17:34:35,322 INFO L226 Difference]: Without dead ends: 14220 [2021-06-12 17:34:35,322 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1120.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:35,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14220 states. [2021-06-12 17:34:35,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14220 to 9805. [2021-06-12 17:34:35,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9805 states, 9803 states have (on average 2.6875446291951444) internal successors, (26346), 9804 states have internal predecessors, (26346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:35,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9805 states to 9805 states and 26346 transitions. [2021-06-12 17:34:35,449 INFO L78 Accepts]: Start accepts. Automaton has 9805 states and 26346 transitions. Word has length 114 [2021-06-12 17:34:35,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:35,449 INFO L482 AbstractCegarLoop]: Abstraction has 9805 states and 26346 transitions. [2021-06-12 17:34:35,449 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:35,449 INFO L276 IsEmpty]: Start isEmpty. Operand 9805 states and 26346 transitions. [2021-06-12 17:34:35,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:35,458 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:35,458 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:35,458 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-06-12 17:34:35,458 INFO L430 AbstractCegarLoop]: === Iteration 316 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:35,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:35,458 INFO L82 PathProgramCache]: Analyzing trace with hash 763696812, now seen corresponding path program 307 times [2021-06-12 17:34:35,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:35,458 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551176236] [2021-06-12 17:34:35,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:35,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:35,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:35,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551176236] [2021-06-12 17:34:35,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551176236] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:35,737 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:35,737 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:35,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008188863] [2021-06-12 17:34:35,737 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:35,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:35,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:35,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:35,738 INFO L87 Difference]: Start difference. First operand 9805 states and 26346 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:36,638 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:36,801 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:36,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:36,937 INFO L93 Difference]: Finished difference Result 11671 states and 30825 transitions. [2021-06-12 17:34:36,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:36,937 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:36,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:36,946 INFO L225 Difference]: With dead ends: 11671 [2021-06-12 17:34:36,946 INFO L226 Difference]: Without dead ends: 11671 [2021-06-12 17:34:36,946 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1092.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:36,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11671 states. [2021-06-12 17:34:37,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11671 to 9629. [2021-06-12 17:34:37,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:37,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-06-12 17:34:37,058 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-06-12 17:34:37,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:37,059 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-06-12 17:34:37,059 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:37,059 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-06-12 17:34:37,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:37,066 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:37,066 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:37,066 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-06-12 17:34:37,066 INFO L430 AbstractCegarLoop]: === Iteration 317 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:37,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:37,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1618033748, now seen corresponding path program 308 times [2021-06-12 17:34:37,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:37,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300541481] [2021-06-12 17:34:37,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:37,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:37,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300541481] [2021-06-12 17:34:37,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300541481] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:37,341 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:37,341 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:37,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711237534] [2021-06-12 17:34:37,341 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:37,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:37,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:37,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:37,342 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:38,109 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:38,250 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:38,410 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:38,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:38,525 INFO L93 Difference]: Finished difference Result 14199 states and 37374 transitions. [2021-06-12 17:34:38,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:38,526 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:38,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:38,537 INFO L225 Difference]: With dead ends: 14199 [2021-06-12 17:34:38,537 INFO L226 Difference]: Without dead ends: 14199 [2021-06-12 17:34:38,538 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1095.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:38,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14199 states. [2021-06-12 17:34:38,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14199 to 9645. [2021-06-12 17:34:38,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9645 states, 9643 states have (on average 2.683812091672716) internal successors, (25880), 9644 states have internal predecessors, (25880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:38,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9645 states to 9645 states and 25880 transitions. [2021-06-12 17:34:38,665 INFO L78 Accepts]: Start accepts. Automaton has 9645 states and 25880 transitions. Word has length 114 [2021-06-12 17:34:38,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:38,665 INFO L482 AbstractCegarLoop]: Abstraction has 9645 states and 25880 transitions. [2021-06-12 17:34:38,665 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:38,665 INFO L276 IsEmpty]: Start isEmpty. Operand 9645 states and 25880 transitions. [2021-06-12 17:34:38,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:38,673 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:38,673 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:38,673 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2021-06-12 17:34:38,673 INFO L430 AbstractCegarLoop]: === Iteration 318 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:38,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:38,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1588460362, now seen corresponding path program 309 times [2021-06-12 17:34:38,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:38,674 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799983826] [2021-06-12 17:34:38,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:38,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:38,986 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:38,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799983826] [2021-06-12 17:34:38,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799983826] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:38,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:38,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:38,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374580241] [2021-06-12 17:34:38,986 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:38,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:38,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:38,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:38,987 INFO L87 Difference]: Start difference. First operand 9645 states and 25880 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:39,736 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:39,889 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:34:40,046 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:34:40,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:40,157 INFO L93 Difference]: Finished difference Result 12539 states and 32774 transitions. [2021-06-12 17:34:40,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:40,157 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:40,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:40,169 INFO L225 Difference]: With dead ends: 12539 [2021-06-12 17:34:40,169 INFO L226 Difference]: Without dead ends: 12539 [2021-06-12 17:34:40,170 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1132.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:40,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12539 states. [2021-06-12 17:34:40,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12539 to 9597. [2021-06-12 17:34:40,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9595 states have (on average 2.682855653986451) internal successors, (25742), 9596 states have internal predecessors, (25742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:40,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 25742 transitions. [2021-06-12 17:34:40,290 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 25742 transitions. Word has length 114 [2021-06-12 17:34:40,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:40,290 INFO L482 AbstractCegarLoop]: Abstraction has 9597 states and 25742 transitions. [2021-06-12 17:34:40,290 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:40,290 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 25742 transitions. [2021-06-12 17:34:40,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:40,297 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:40,297 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:40,297 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2021-06-12 17:34:40,297 INFO L430 AbstractCegarLoop]: === Iteration 319 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:40,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:40,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1296287124, now seen corresponding path program 310 times [2021-06-12 17:34:40,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:40,297 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633121958] [2021-06-12 17:34:40,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:40,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:40,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:40,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633121958] [2021-06-12 17:34:40,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633121958] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:40,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:40,556 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:40,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144271159] [2021-06-12 17:34:40,556 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:40,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:40,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:40,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:40,557 INFO L87 Difference]: Start difference. First operand 9597 states and 25742 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:41,095 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-12 17:34:41,353 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:41,499 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:41,660 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:41,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:41,791 INFO L93 Difference]: Finished difference Result 15529 states and 40553 transitions. [2021-06-12 17:34:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:41,792 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:41,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:41,805 INFO L225 Difference]: With dead ends: 15529 [2021-06-12 17:34:41,806 INFO L226 Difference]: Without dead ends: 15529 [2021-06-12 17:34:41,806 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1105.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:41,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15529 states. [2021-06-12 17:34:41,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15529 to 9629. [2021-06-12 17:34:41,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:41,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-06-12 17:34:41,936 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-06-12 17:34:41,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:41,936 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-06-12 17:34:41,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:41,936 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-06-12 17:34:41,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:41,943 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:41,943 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:41,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2021-06-12 17:34:41,944 INFO L430 AbstractCegarLoop]: === Iteration 320 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:41,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:41,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1910206986, now seen corresponding path program 311 times [2021-06-12 17:34:41,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:41,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647517866] [2021-06-12 17:34:41,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:42,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:42,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:42,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647517866] [2021-06-12 17:34:42,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647517866] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:42,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:42,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:42,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004149225] [2021-06-12 17:34:42,206 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:42,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:42,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:42,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:42,206 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:42,977 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:43,138 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:34:43,297 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:34:43,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:43,458 INFO L93 Difference]: Finished difference Result 16342 states and 42357 transitions. [2021-06-12 17:34:43,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:43,458 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:43,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:43,471 INFO L225 Difference]: With dead ends: 16342 [2021-06-12 17:34:43,471 INFO L226 Difference]: Without dead ends: 16342 [2021-06-12 17:34:43,471 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1090.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:43,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16342 states. [2021-06-12 17:34:43,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16342 to 9613. [2021-06-12 17:34:43,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9613 states, 9611 states have (on average 2.6831755280407865) internal successors, (25788), 9612 states have internal predecessors, (25788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:43,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9613 states to 9613 states and 25788 transitions. [2021-06-12 17:34:43,609 INFO L78 Accepts]: Start accepts. Automaton has 9613 states and 25788 transitions. Word has length 114 [2021-06-12 17:34:43,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:43,609 INFO L482 AbstractCegarLoop]: Abstraction has 9613 states and 25788 transitions. [2021-06-12 17:34:43,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:43,609 INFO L276 IsEmpty]: Start isEmpty. Operand 9613 states and 25788 transitions. [2021-06-12 17:34:43,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:43,616 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:43,616 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:43,616 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2021-06-12 17:34:43,616 INFO L430 AbstractCegarLoop]: === Iteration 321 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:43,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:43,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1586896850, now seen corresponding path program 312 times [2021-06-12 17:34:43,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:43,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068281437] [2021-06-12 17:34:43,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:43,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:43,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:43,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068281437] [2021-06-12 17:34:43,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068281437] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:43,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:43,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:43,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229892757] [2021-06-12 17:34:43,877 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:43,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:43,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:43,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:43,878 INFO L87 Difference]: Start difference. First operand 9613 states and 25788 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:44,646 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:44,797 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:34:44,958 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:34:45,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:45,097 INFO L93 Difference]: Finished difference Result 15668 states and 40770 transitions. [2021-06-12 17:34:45,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:45,097 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:45,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:45,111 INFO L225 Difference]: With dead ends: 15668 [2021-06-12 17:34:45,111 INFO L226 Difference]: Without dead ends: 15668 [2021-06-12 17:34:45,111 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1080.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:45,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15668 states. [2021-06-12 17:34:45,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15668 to 9629. [2021-06-12 17:34:45,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:45,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-06-12 17:34:45,248 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-06-12 17:34:45,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:45,248 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-06-12 17:34:45,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:45,248 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-06-12 17:34:45,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:45,255 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:45,255 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:45,255 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2021-06-12 17:34:45,255 INFO L430 AbstractCegarLoop]: === Iteration 322 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:45,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:45,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1835443830, now seen corresponding path program 313 times [2021-06-12 17:34:45,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:45,256 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068728828] [2021-06-12 17:34:45,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:45,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:45,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:45,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068728828] [2021-06-12 17:34:45,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068728828] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:45,553 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:45,553 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:45,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992788262] [2021-06-12 17:34:45,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:45,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:45,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:45,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:45,553 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:46,323 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:46,464 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:46,627 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:46,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:46,736 INFO L93 Difference]: Finished difference Result 12733 states and 33296 transitions. [2021-06-12 17:34:46,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:46,736 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:46,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:46,747 INFO L225 Difference]: With dead ends: 12733 [2021-06-12 17:34:46,747 INFO L226 Difference]: Without dead ends: 12733 [2021-06-12 17:34:46,747 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1072.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:46,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12733 states. [2021-06-12 17:34:46,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12733 to 9565. [2021-06-12 17:34:46,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9565 states, 9563 states have (on average 2.6822126947610583) internal successors, (25650), 9564 states have internal predecessors, (25650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:46,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9565 states to 9565 states and 25650 transitions. [2021-06-12 17:34:46,863 INFO L78 Accepts]: Start accepts. Automaton has 9565 states and 25650 transitions. Word has length 114 [2021-06-12 17:34:46,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:46,863 INFO L482 AbstractCegarLoop]: Abstraction has 9565 states and 25650 transitions. [2021-06-12 17:34:46,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:46,863 INFO L276 IsEmpty]: Start isEmpty. Operand 9565 states and 25650 transitions. [2021-06-12 17:34:46,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:46,870 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:46,870 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:46,870 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2021-06-12 17:34:46,870 INFO L430 AbstractCegarLoop]: === Iteration 323 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:46,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:46,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1431489298, now seen corresponding path program 314 times [2021-06-12 17:34:46,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:46,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446737180] [2021-06-12 17:34:46,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:47,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:47,129 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:47,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446737180] [2021-06-12 17:34:47,129 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446737180] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:47,129 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:47,129 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:47,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115217402] [2021-06-12 17:34:47,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:47,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:47,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:47,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:47,129 INFO L87 Difference]: Start difference. First operand 9565 states and 25650 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:47,904 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:48,045 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:48,202 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:48,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:48,331 INFO L93 Difference]: Finished difference Result 16087 states and 42083 transitions. [2021-06-12 17:34:48,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:48,332 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:48,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:48,347 INFO L225 Difference]: With dead ends: 16087 [2021-06-12 17:34:48,347 INFO L226 Difference]: Without dead ends: 16087 [2021-06-12 17:34:48,347 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1094.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:48,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16087 states. [2021-06-12 17:34:48,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16087 to 9629. [2021-06-12 17:34:48,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:48,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-06-12 17:34:48,495 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-06-12 17:34:48,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:48,495 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-06-12 17:34:48,495 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:48,495 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-06-12 17:34:48,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:48,502 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:48,502 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:48,502 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2021-06-12 17:34:48,503 INFO L430 AbstractCegarLoop]: === Iteration 324 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:48,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:48,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1775004812, now seen corresponding path program 315 times [2021-06-12 17:34:48,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:48,503 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608963250] [2021-06-12 17:34:48,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:48,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:48,765 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:48,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608963250] [2021-06-12 17:34:48,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608963250] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:48,765 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:48,765 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:48,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92659623] [2021-06-12 17:34:48,765 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:48,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:48,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:48,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:48,765 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:49,518 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:49,672 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:34:49,848 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:34:49,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:49,969 INFO L93 Difference]: Finished difference Result 16900 states and 43887 transitions. [2021-06-12 17:34:49,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:49,970 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:49,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:49,984 INFO L225 Difference]: With dead ends: 16900 [2021-06-12 17:34:49,984 INFO L226 Difference]: Without dead ends: 16900 [2021-06-12 17:34:49,984 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1106.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:50,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16900 states. [2021-06-12 17:34:50,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16900 to 9613. [2021-06-12 17:34:50,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9613 states, 9611 states have (on average 2.6831755280407865) internal successors, (25788), 9612 states have internal predecessors, (25788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:50,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9613 states to 9613 states and 25788 transitions. [2021-06-12 17:34:50,125 INFO L78 Accepts]: Start accepts. Automaton has 9613 states and 25788 transitions. Word has length 114 [2021-06-12 17:34:50,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:50,126 INFO L482 AbstractCegarLoop]: Abstraction has 9613 states and 25788 transitions. [2021-06-12 17:34:50,126 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:50,126 INFO L276 IsEmpty]: Start isEmpty. Operand 9613 states and 25788 transitions. [2021-06-12 17:34:50,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:50,133 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:50,133 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:50,133 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2021-06-12 17:34:50,133 INFO L430 AbstractCegarLoop]: === Iteration 325 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:50,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:50,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1722099024, now seen corresponding path program 316 times [2021-06-12 17:34:50,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:50,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531733761] [2021-06-12 17:34:50,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:50,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:50,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:50,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531733761] [2021-06-12 17:34:50,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531733761] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:50,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:50,397 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:50,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344200022] [2021-06-12 17:34:50,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:50,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:50,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:50,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:50,397 INFO L87 Difference]: Start difference. First operand 9613 states and 25788 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:51,176 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:51,330 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:34:51,490 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:34:51,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:51,642 INFO L93 Difference]: Finished difference Result 20013 states and 51837 transitions. [2021-06-12 17:34:51,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:51,643 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:51,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:51,661 INFO L225 Difference]: With dead ends: 20013 [2021-06-12 17:34:51,661 INFO L226 Difference]: Without dead ends: 20013 [2021-06-12 17:34:51,661 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1090.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:51,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20013 states. [2021-06-12 17:34:51,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20013 to 9629. [2021-06-12 17:34:51,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:51,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-06-12 17:34:51,861 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-06-12 17:34:51,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:51,861 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-06-12 17:34:51,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:51,862 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-06-12 17:34:51,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:51,868 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:51,869 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:51,869 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2021-06-12 17:34:51,869 INFO L430 AbstractCegarLoop]: === Iteration 326 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:51,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:51,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1970646004, now seen corresponding path program 317 times [2021-06-12 17:34:51,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:51,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456840687] [2021-06-12 17:34:51,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:52,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:52,127 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:52,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456840687] [2021-06-12 17:34:52,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456840687] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:52,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:52,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:52,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496319578] [2021-06-12 17:34:52,127 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:52,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:52,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:52,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:52,128 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:52,885 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:53,027 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:53,185 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:53,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:53,301 INFO L93 Difference]: Finished difference Result 17078 states and 44363 transitions. [2021-06-12 17:34:53,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:53,301 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:53,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:53,315 INFO L225 Difference]: With dead ends: 17078 [2021-06-12 17:34:53,315 INFO L226 Difference]: Without dead ends: 17078 [2021-06-12 17:34:53,315 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1078.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:53,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17078 states. [2021-06-12 17:34:53,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17078 to 9597. [2021-06-12 17:34:53,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9595 states have (on average 2.682855653986451) internal successors, (25742), 9596 states have internal predecessors, (25742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:53,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 25742 transitions. [2021-06-12 17:34:53,455 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 25742 transitions. Word has length 114 [2021-06-12 17:34:53,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:53,455 INFO L482 AbstractCegarLoop]: Abstraction has 9597 states and 25742 transitions. [2021-06-12 17:34:53,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:53,455 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 25742 transitions. [2021-06-12 17:34:53,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:53,463 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:53,463 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:53,463 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2021-06-12 17:34:53,463 INFO L430 AbstractCegarLoop]: === Iteration 327 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:53,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:53,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1304050986, now seen corresponding path program 318 times [2021-06-12 17:34:53,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:53,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484644498] [2021-06-12 17:34:53,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:53,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:53,734 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:53,734 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484644498] [2021-06-12 17:34:53,734 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484644498] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:53,734 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:53,734 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:53,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015245148] [2021-06-12 17:34:53,735 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:53,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:53,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:53,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:53,735 INFO L87 Difference]: Start difference. First operand 9597 states and 25742 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:54,508 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:54,658 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:34:54,816 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:34:54,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:54,934 INFO L93 Difference]: Finished difference Result 16210 states and 42254 transitions. [2021-06-12 17:34:54,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:54,934 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:54,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:54,947 INFO L225 Difference]: With dead ends: 16210 [2021-06-12 17:34:54,947 INFO L226 Difference]: Without dead ends: 16210 [2021-06-12 17:34:54,948 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1113.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:54,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16210 states. [2021-06-12 17:34:55,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16210 to 9645. [2021-06-12 17:34:55,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9645 states, 9643 states have (on average 2.683812091672716) internal successors, (25880), 9644 states have internal predecessors, (25880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:55,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9645 states to 9645 states and 25880 transitions. [2021-06-12 17:34:55,080 INFO L78 Accepts]: Start accepts. Automaton has 9645 states and 25880 transitions. Word has length 114 [2021-06-12 17:34:55,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:55,080 INFO L482 AbstractCegarLoop]: Abstraction has 9645 states and 25880 transitions. [2021-06-12 17:34:55,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:55,080 INFO L276 IsEmpty]: Start isEmpty. Operand 9645 states and 25880 transitions. [2021-06-12 17:34:55,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:55,087 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:55,087 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:55,087 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2021-06-12 17:34:55,087 INFO L430 AbstractCegarLoop]: === Iteration 328 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:55,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:55,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1055504006, now seen corresponding path program 319 times [2021-06-12 17:34:55,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:55,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277958602] [2021-06-12 17:34:55,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:55,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:55,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:55,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277958602] [2021-06-12 17:34:55,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277958602] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:55,359 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:55,359 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:55,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311309288] [2021-06-12 17:34:55,359 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:55,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:55,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:55,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:55,359 INFO L87 Difference]: Start difference. First operand 9645 states and 25880 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:56,138 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:56,301 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:56,461 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:56,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:56,573 INFO L93 Difference]: Finished difference Result 16050 states and 41852 transitions. [2021-06-12 17:34:56,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:56,573 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:56,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:56,586 INFO L225 Difference]: With dead ends: 16050 [2021-06-12 17:34:56,586 INFO L226 Difference]: Without dead ends: 16050 [2021-06-12 17:34:56,587 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1099.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:56,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16050 states. [2021-06-12 17:34:56,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16050 to 9629. [2021-06-12 17:34:56,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9629 states, 9627 states have (on average 2.683494338838683) internal successors, (25834), 9628 states have internal predecessors, (25834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:56,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9629 states to 9629 states and 25834 transitions. [2021-06-12 17:34:56,720 INFO L78 Accepts]: Start accepts. Automaton has 9629 states and 25834 transitions. Word has length 114 [2021-06-12 17:34:56,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:56,720 INFO L482 AbstractCegarLoop]: Abstraction has 9629 states and 25834 transitions. [2021-06-12 17:34:56,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:56,720 INFO L276 IsEmpty]: Start isEmpty. Operand 9629 states and 25834 transitions. [2021-06-12 17:34:56,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:56,727 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:56,727 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:56,727 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2021-06-12 17:34:56,727 INFO L430 AbstractCegarLoop]: === Iteration 329 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:56,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:56,728 INFO L82 PathProgramCache]: Analyzing trace with hash -101313298, now seen corresponding path program 320 times [2021-06-12 17:34:56,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:56,728 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789546171] [2021-06-12 17:34:56,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:57,001 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:57,001 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789546171] [2021-06-12 17:34:57,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789546171] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:57,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:57,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:57,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201700391] [2021-06-12 17:34:57,002 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:57,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:57,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:57,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:57,002 INFO L87 Difference]: Start difference. First operand 9629 states and 25834 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:57,917 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:58,080 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:58,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:58,192 INFO L93 Difference]: Finished difference Result 13201 states and 34592 transitions. [2021-06-12 17:34:58,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:58,193 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:58,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:58,203 INFO L225 Difference]: With dead ends: 13201 [2021-06-12 17:34:58,203 INFO L226 Difference]: Without dead ends: 13201 [2021-06-12 17:34:58,204 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1079.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:58,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13201 states. [2021-06-12 17:34:58,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13201 to 9501. [2021-06-12 17:34:58,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9501 states, 9499 states have (on average 2.680913780397937) internal successors, (25466), 9500 states have internal predecessors, (25466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:58,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9501 states to 9501 states and 25466 transitions. [2021-06-12 17:34:58,352 INFO L78 Accepts]: Start accepts. Automaton has 9501 states and 25466 transitions. Word has length 114 [2021-06-12 17:34:58,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:58,352 INFO L482 AbstractCegarLoop]: Abstraction has 9501 states and 25466 transitions. [2021-06-12 17:34:58,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:58,353 INFO L276 IsEmpty]: Start isEmpty. Operand 9501 states and 25466 transitions. [2021-06-12 17:34:58,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:58,359 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:58,360 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:58,360 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2021-06-12 17:34:58,360 INFO L430 AbstractCegarLoop]: === Iteration 330 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:58,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:58,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1040171856, now seen corresponding path program 321 times [2021-06-12 17:34:58,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:58,360 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092378862] [2021-06-12 17:34:58,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:34:58,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:34:58,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:34:58,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092378862] [2021-06-12 17:34:58,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092378862] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:34:58,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:34:58,619 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:34:58,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323991489] [2021-06-12 17:34:58,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:34:58,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:34:58,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:34:58,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:34:58,620 INFO L87 Difference]: Start difference. First operand 9501 states and 25466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:59,372 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:34:59,513 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:34:59,672 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:34:59,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:34:59,796 INFO L93 Difference]: Finished difference Result 16645 states and 43613 transitions. [2021-06-12 17:34:59,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:34:59,796 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:34:59,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:34:59,810 INFO L225 Difference]: With dead ends: 16645 [2021-06-12 17:34:59,810 INFO L226 Difference]: Without dead ends: 16645 [2021-06-12 17:34:59,810 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1074.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:34:59,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16645 states. [2021-06-12 17:34:59,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16645 to 9581. [2021-06-12 17:34:59,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9581 states, 9579 states have (on average 2.68253471134774) internal successors, (25696), 9580 states have internal predecessors, (25696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:59,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9581 states to 9581 states and 25696 transitions. [2021-06-12 17:34:59,949 INFO L78 Accepts]: Start accepts. Automaton has 9581 states and 25696 transitions. Word has length 114 [2021-06-12 17:34:59,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:34:59,949 INFO L482 AbstractCegarLoop]: Abstraction has 9581 states and 25696 transitions. [2021-06-12 17:34:59,950 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:34:59,950 INFO L276 IsEmpty]: Start isEmpty. Operand 9581 states and 25696 transitions. [2021-06-12 17:34:59,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:34:59,957 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:34:59,957 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:34:59,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2021-06-12 17:34:59,957 INFO L430 AbstractCegarLoop]: === Iteration 331 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:34:59,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:34:59,957 INFO L82 PathProgramCache]: Analyzing trace with hash -48301330, now seen corresponding path program 322 times [2021-06-12 17:34:59,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:34:59,957 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190314198] [2021-06-12 17:34:59,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:34:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:00,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:00,223 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:00,223 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190314198] [2021-06-12 17:35:00,223 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190314198] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:00,223 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:00,223 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:00,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638142285] [2021-06-12 17:35:00,223 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:00,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:00,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:00,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:00,223 INFO L87 Difference]: Start difference. First operand 9581 states and 25696 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:01,000 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:01,152 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:35:01,306 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:35:01,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:01,430 INFO L93 Difference]: Finished difference Result 17458 states and 45417 transitions. [2021-06-12 17:35:01,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:01,430 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:01,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:01,445 INFO L225 Difference]: With dead ends: 17458 [2021-06-12 17:35:01,445 INFO L226 Difference]: Without dead ends: 17458 [2021-06-12 17:35:01,446 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1110.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:01,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17458 states. [2021-06-12 17:35:01,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17458 to 9565. [2021-06-12 17:35:01,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9565 states, 9563 states have (on average 2.6822126947610583) internal successors, (25650), 9564 states have internal predecessors, (25650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:01,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9565 states to 9565 states and 25650 transitions. [2021-06-12 17:35:01,605 INFO L78 Accepts]: Start accepts. Automaton has 9565 states and 25650 transitions. Word has length 114 [2021-06-12 17:35:01,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:01,605 INFO L482 AbstractCegarLoop]: Abstraction has 9565 states and 25650 transitions. [2021-06-12 17:35:01,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:01,605 INFO L276 IsEmpty]: Start isEmpty. Operand 9565 states and 25650 transitions. [2021-06-12 17:35:01,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:01,612 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:01,612 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:01,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2021-06-12 17:35:01,612 INFO L430 AbstractCegarLoop]: === Iteration 332 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:01,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:01,612 INFO L82 PathProgramCache]: Analyzing trace with hash 749562130, now seen corresponding path program 323 times [2021-06-12 17:35:01,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:01,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230600173] [2021-06-12 17:35:01,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:01,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:01,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:01,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230600173] [2021-06-12 17:35:01,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230600173] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:01,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:01,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:01,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133027681] [2021-06-12 17:35:01,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:01,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:01,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:01,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:01,875 INFO L87 Difference]: Start difference. First operand 9565 states and 25650 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:02,697 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:02,848 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:35:03,009 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:35:03,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:03,161 INFO L93 Difference]: Finished difference Result 20571 states and 53367 transitions. [2021-06-12 17:35:03,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:03,161 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:03,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:03,178 INFO L225 Difference]: With dead ends: 20571 [2021-06-12 17:35:03,178 INFO L226 Difference]: Without dead ends: 20571 [2021-06-12 17:35:03,179 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1125.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:03,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20571 states. [2021-06-12 17:35:03,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20571 to 9581. [2021-06-12 17:35:03,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9581 states, 9579 states have (on average 2.68253471134774) internal successors, (25696), 9580 states have internal predecessors, (25696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:03,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9581 states to 9581 states and 25696 transitions. [2021-06-12 17:35:03,343 INFO L78 Accepts]: Start accepts. Automaton has 9581 states and 25696 transitions. Word has length 114 [2021-06-12 17:35:03,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:03,343 INFO L482 AbstractCegarLoop]: Abstraction has 9581 states and 25696 transitions. [2021-06-12 17:35:03,344 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:03,344 INFO L276 IsEmpty]: Start isEmpty. Operand 9581 states and 25696 transitions. [2021-06-12 17:35:03,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:03,351 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:03,351 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:03,351 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2021-06-12 17:35:03,351 INFO L430 AbstractCegarLoop]: === Iteration 333 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:03,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:03,351 INFO L82 PathProgramCache]: Analyzing trace with hash 501015150, now seen corresponding path program 324 times [2021-06-12 17:35:03,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:03,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876792408] [2021-06-12 17:35:03,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:03,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:03,613 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:03,613 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876792408] [2021-06-12 17:35:03,613 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876792408] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:03,613 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:03,613 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:03,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647624976] [2021-06-12 17:35:03,614 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:03,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:03,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:03,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:03,614 INFO L87 Difference]: Start difference. First operand 9581 states and 25696 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:04,393 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:04,538 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:04,700 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:04,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:04,828 INFO L93 Difference]: Finished difference Result 17636 states and 45893 transitions. [2021-06-12 17:35:04,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:04,828 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:04,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:04,876 INFO L225 Difference]: With dead ends: 17636 [2021-06-12 17:35:04,876 INFO L226 Difference]: Without dead ends: 17636 [2021-06-12 17:35:04,876 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1084.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:04,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17636 states. [2021-06-12 17:35:04,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17636 to 9549. [2021-06-12 17:35:04,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9549 states, 9547 states have (on average 2.6818895988268565) internal successors, (25604), 9548 states have internal predecessors, (25604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:05,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9549 states to 9549 states and 25604 transitions. [2021-06-12 17:35:05,003 INFO L78 Accepts]: Start accepts. Automaton has 9549 states and 25604 transitions. Word has length 114 [2021-06-12 17:35:05,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:05,004 INFO L482 AbstractCegarLoop]: Abstraction has 9549 states and 25604 transitions. [2021-06-12 17:35:05,004 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:05,004 INFO L276 IsEmpty]: Start isEmpty. Operand 9549 states and 25604 transitions. [2021-06-12 17:35:05,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:05,011 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:05,011 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:05,011 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2021-06-12 17:35:05,011 INFO L430 AbstractCegarLoop]: === Iteration 334 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:05,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:05,012 INFO L82 PathProgramCache]: Analyzing trace with hash -519255156, now seen corresponding path program 325 times [2021-06-12 17:35:05,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:05,012 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945440999] [2021-06-12 17:35:05,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:05,286 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:05,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945440999] [2021-06-12 17:35:05,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945440999] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:05,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:05,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:05,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332995403] [2021-06-12 17:35:05,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:05,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:05,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:05,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:05,287 INFO L87 Difference]: Start difference. First operand 9549 states and 25604 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:06,085 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:06,241 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:35:06,405 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:35:06,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:06,561 INFO L93 Difference]: Finished difference Result 21081 states and 54759 transitions. [2021-06-12 17:35:06,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:06,561 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:06,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:06,579 INFO L225 Difference]: With dead ends: 21081 [2021-06-12 17:35:06,579 INFO L226 Difference]: Without dead ends: 21081 [2021-06-12 17:35:06,580 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1115.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:06,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21081 states. [2021-06-12 17:35:06,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21081 to 9597. [2021-06-12 17:35:06,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9595 states have (on average 2.682855653986451) internal successors, (25742), 9596 states have internal predecessors, (25742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:06,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 25742 transitions. [2021-06-12 17:35:06,744 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 25742 transitions. Word has length 114 [2021-06-12 17:35:06,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:06,744 INFO L482 AbstractCegarLoop]: Abstraction has 9597 states and 25742 transitions. [2021-06-12 17:35:06,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:06,744 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 25742 transitions. [2021-06-12 17:35:06,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:06,751 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:06,751 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:06,751 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2021-06-12 17:35:06,751 INFO L430 AbstractCegarLoop]: === Iteration 335 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:06,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:06,751 INFO L82 PathProgramCache]: Analyzing trace with hash -767802136, now seen corresponding path program 326 times [2021-06-12 17:35:06,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:06,751 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74333318] [2021-06-12 17:35:06,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:07,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:07,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:07,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74333318] [2021-06-12 17:35:07,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74333318] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:07,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:07,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:07,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586021798] [2021-06-12 17:35:07,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:07,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:07,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:07,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:07,066 INFO L87 Difference]: Start difference. First operand 9597 states and 25742 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:07,847 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:07,995 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:08,159 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:08,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:08,305 INFO L93 Difference]: Finished difference Result 20921 states and 54357 transitions. [2021-06-12 17:35:08,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:08,305 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:08,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:08,325 INFO L225 Difference]: With dead ends: 20921 [2021-06-12 17:35:08,325 INFO L226 Difference]: Without dead ends: 20921 [2021-06-12 17:35:08,325 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1094.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:08,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20921 states. [2021-06-12 17:35:08,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20921 to 9581. [2021-06-12 17:35:08,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9581 states, 9579 states have (on average 2.68253471134774) internal successors, (25696), 9580 states have internal predecessors, (25696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:08,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9581 states to 9581 states and 25696 transitions. [2021-06-12 17:35:08,483 INFO L78 Accepts]: Start accepts. Automaton has 9581 states and 25696 transitions. Word has length 114 [2021-06-12 17:35:08,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:08,483 INFO L482 AbstractCegarLoop]: Abstraction has 9581 states and 25696 transitions. [2021-06-12 17:35:08,483 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:08,483 INFO L276 IsEmpty]: Start isEmpty. Operand 9581 states and 25696 transitions. [2021-06-12 17:35:08,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:08,490 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:08,490 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:08,490 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2021-06-12 17:35:08,491 INFO L430 AbstractCegarLoop]: === Iteration 336 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:08,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:08,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1924619440, now seen corresponding path program 327 times [2021-06-12 17:35:08,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:08,491 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154299323] [2021-06-12 17:35:08,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:08,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:08,762 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:08,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154299323] [2021-06-12 17:35:08,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154299323] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:08,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:08,763 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:08,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119770962] [2021-06-12 17:35:08,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:08,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:08,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:08,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:08,763 INFO L87 Difference]: Start difference. First operand 9581 states and 25696 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:09,722 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:09,888 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:10,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:10,018 INFO L93 Difference]: Finished difference Result 18072 states and 47097 transitions. [2021-06-12 17:35:10,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:10,019 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:10,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:10,034 INFO L225 Difference]: With dead ends: 18072 [2021-06-12 17:35:10,034 INFO L226 Difference]: Without dead ends: 18072 [2021-06-12 17:35:10,034 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1122.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:10,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18072 states. [2021-06-12 17:35:10,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18072 to 9517. [2021-06-12 17:35:10,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9517 states, 9515 states have (on average 2.681240147136101) internal successors, (25512), 9516 states have internal predecessors, (25512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:10,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9517 states to 9517 states and 25512 transitions. [2021-06-12 17:35:10,185 INFO L78 Accepts]: Start accepts. Automaton has 9517 states and 25512 transitions. Word has length 114 [2021-06-12 17:35:10,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:10,185 INFO L482 AbstractCegarLoop]: Abstraction has 9517 states and 25512 transitions. [2021-06-12 17:35:10,185 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:10,185 INFO L276 IsEmpty]: Start isEmpty. Operand 9517 states and 25512 transitions. [2021-06-12 17:35:10,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:10,192 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:10,193 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:10,193 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2021-06-12 17:35:10,193 INFO L430 AbstractCegarLoop]: === Iteration 337 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:10,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:10,193 INFO L82 PathProgramCache]: Analyzing trace with hash -114895574, now seen corresponding path program 328 times [2021-06-12 17:35:10,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:10,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027191959] [2021-06-12 17:35:10,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:10,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:10,477 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:10,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027191959] [2021-06-12 17:35:10,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027191959] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:10,477 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:10,477 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:10,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497425737] [2021-06-12 17:35:10,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:10,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:10,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:10,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:10,477 INFO L87 Difference]: Start difference. First operand 9517 states and 25512 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:11,283 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:11,440 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:35:11,602 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:35:11,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:11,735 INFO L93 Difference]: Finished difference Result 16736 states and 43692 transitions. [2021-06-12 17:35:11,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:11,736 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:11,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:11,749 INFO L225 Difference]: With dead ends: 16736 [2021-06-12 17:35:11,749 INFO L226 Difference]: Without dead ends: 16736 [2021-06-12 17:35:11,749 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1136.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:11,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16736 states. [2021-06-12 17:35:11,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16736 to 9581. [2021-06-12 17:35:11,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9581 states, 9579 states have (on average 2.68253471134774) internal successors, (25696), 9580 states have internal predecessors, (25696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:11,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9581 states to 9581 states and 25696 transitions. [2021-06-12 17:35:11,888 INFO L78 Accepts]: Start accepts. Automaton has 9581 states and 25696 transitions. Word has length 114 [2021-06-12 17:35:11,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:11,888 INFO L482 AbstractCegarLoop]: Abstraction has 9581 states and 25696 transitions. [2021-06-12 17:35:11,888 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:11,888 INFO L276 IsEmpty]: Start isEmpty. Operand 9581 states and 25696 transitions. [2021-06-12 17:35:11,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:11,895 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:11,895 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:11,895 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2021-06-12 17:35:11,895 INFO L430 AbstractCegarLoop]: === Iteration 338 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:11,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:11,895 INFO L82 PathProgramCache]: Analyzing trace with hash -363442554, now seen corresponding path program 329 times [2021-06-12 17:35:11,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:11,895 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295149681] [2021-06-12 17:35:11,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:12,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:12,176 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:12,176 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295149681] [2021-06-12 17:35:12,176 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295149681] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:12,176 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:12,176 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:12,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052182021] [2021-06-12 17:35:12,176 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:12,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:12,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:12,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:12,177 INFO L87 Difference]: Start difference. First operand 9581 states and 25696 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:12,939 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:13,085 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:13,263 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:13,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:13,380 INFO L93 Difference]: Finished difference Result 16576 states and 43290 transitions. [2021-06-12 17:35:13,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:13,381 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:13,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:13,395 INFO L225 Difference]: With dead ends: 16576 [2021-06-12 17:35:13,395 INFO L226 Difference]: Without dead ends: 16576 [2021-06-12 17:35:13,395 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1120.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:13,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16576 states. [2021-06-12 17:35:13,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16576 to 9565. [2021-06-12 17:35:13,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9565 states, 9563 states have (on average 2.6822126947610583) internal successors, (25650), 9564 states have internal predecessors, (25650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:13,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9565 states to 9565 states and 25650 transitions. [2021-06-12 17:35:13,553 INFO L78 Accepts]: Start accepts. Automaton has 9565 states and 25650 transitions. Word has length 114 [2021-06-12 17:35:13,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:13,553 INFO L482 AbstractCegarLoop]: Abstraction has 9565 states and 25650 transitions. [2021-06-12 17:35:13,553 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:13,553 INFO L276 IsEmpty]: Start isEmpty. Operand 9565 states and 25650 transitions. [2021-06-12 17:35:13,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:13,560 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:13,560 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:13,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2021-06-12 17:35:13,561 INFO L430 AbstractCegarLoop]: === Iteration 339 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:13,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:13,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1520259858, now seen corresponding path program 330 times [2021-06-12 17:35:13,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:13,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221526870] [2021-06-12 17:35:13,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:13,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:13,844 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:13,844 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221526870] [2021-06-12 17:35:13,844 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221526870] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:13,844 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:13,844 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:13,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609510292] [2021-06-12 17:35:13,844 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:13,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:13,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:13,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:13,844 INFO L87 Difference]: Start difference. First operand 9565 states and 25650 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:14,750 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:14,916 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:15,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:15,038 INFO L93 Difference]: Finished difference Result 16864 states and 44118 transitions. [2021-06-12 17:35:15,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:15,038 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:15,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:15,052 INFO L225 Difference]: With dead ends: 16864 [2021-06-12 17:35:15,052 INFO L226 Difference]: Without dead ends: 16864 [2021-06-12 17:35:15,053 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1096.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:15,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16864 states. [2021-06-12 17:35:15,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16864 to 9533. [2021-06-12 17:35:15,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9533 states, 9531 states have (on average 2.6815654181093276) internal successors, (25558), 9532 states have internal predecessors, (25558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:15,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9533 states to 9533 states and 25558 transitions. [2021-06-12 17:35:15,188 INFO L78 Accepts]: Start accepts. Automaton has 9533 states and 25558 transitions. Word has length 114 [2021-06-12 17:35:15,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:15,188 INFO L482 AbstractCegarLoop]: Abstraction has 9533 states and 25558 transitions. [2021-06-12 17:35:15,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:15,188 INFO L276 IsEmpty]: Start isEmpty. Operand 9533 states and 25558 transitions. [2021-06-12 17:35:15,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:15,195 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:15,195 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:15,195 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2021-06-12 17:35:15,195 INFO L430 AbstractCegarLoop]: === Iteration 340 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:15,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:15,195 INFO L82 PathProgramCache]: Analyzing trace with hash 187923280, now seen corresponding path program 331 times [2021-06-12 17:35:15,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:15,196 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165951987] [2021-06-12 17:35:15,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:15,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:15,521 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:15,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165951987] [2021-06-12 17:35:15,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165951987] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:15,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:15,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:15,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064178114] [2021-06-12 17:35:15,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:15,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:15,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:15,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:15,522 INFO L87 Difference]: Start difference. First operand 9533 states and 25558 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:16,283 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-06-12 17:35:16,441 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:16,607 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:16,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:16,723 INFO L93 Difference]: Finished difference Result 13579 states and 35654 transitions. [2021-06-12 17:35:16,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:16,723 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:16,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:16,735 INFO L225 Difference]: With dead ends: 13579 [2021-06-12 17:35:16,735 INFO L226 Difference]: Without dead ends: 13579 [2021-06-12 17:35:16,735 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1137.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:16,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13579 states. [2021-06-12 17:35:16,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13579 to 9469. [2021-06-12 17:35:16,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9469 states, 9467 states have (on average 2.6802577374036125) internal successors, (25374), 9468 states have internal predecessors, (25374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:16,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9469 states to 9469 states and 25374 transitions. [2021-06-12 17:35:16,851 INFO L78 Accepts]: Start accepts. Automaton has 9469 states and 25374 transitions. Word has length 114 [2021-06-12 17:35:16,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:16,851 INFO L482 AbstractCegarLoop]: Abstraction has 9469 states and 25374 transitions. [2021-06-12 17:35:16,852 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:16,852 INFO L276 IsEmpty]: Start isEmpty. Operand 9469 states and 25374 transitions. [2021-06-12 17:35:16,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:16,859 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:16,859 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:16,859 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2021-06-12 17:35:16,859 INFO L430 AbstractCegarLoop]: === Iteration 341 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:16,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:16,859 INFO L82 PathProgramCache]: Analyzing trace with hash -840792664, now seen corresponding path program 332 times [2021-06-12 17:35:16,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:16,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885269220] [2021-06-12 17:35:16,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:17,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:17,120 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:17,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885269220] [2021-06-12 17:35:17,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885269220] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:17,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:17,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:17,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043585506] [2021-06-12 17:35:17,121 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:17,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:17,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:17,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:17,121 INFO L87 Difference]: Start difference. First operand 9469 states and 25374 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:17,787 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-06-12 17:35:17,917 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:18,060 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:18,220 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:18,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:18,339 INFO L93 Difference]: Finished difference Result 11153 states and 29359 transitions. [2021-06-12 17:35:18,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:18,339 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:18,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:18,350 INFO L225 Difference]: With dead ends: 11153 [2021-06-12 17:35:18,350 INFO L226 Difference]: Without dead ends: 11153 [2021-06-12 17:35:18,350 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1109.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:18,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11153 states. [2021-06-12 17:35:18,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11153 to 9381. [2021-06-12 17:35:18,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9381 states, 9379 states have (on average 2.678110672779614) internal successors, (25118), 9380 states have internal predecessors, (25118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:18,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9381 states to 9381 states and 25118 transitions. [2021-06-12 17:35:18,468 INFO L78 Accepts]: Start accepts. Automaton has 9381 states and 25118 transitions. Word has length 114 [2021-06-12 17:35:18,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:18,468 INFO L482 AbstractCegarLoop]: Abstraction has 9381 states and 25118 transitions. [2021-06-12 17:35:18,468 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:18,468 INFO L276 IsEmpty]: Start isEmpty. Operand 9381 states and 25118 transitions. [2021-06-12 17:35:18,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:18,476 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:18,477 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:18,477 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2021-06-12 17:35:18,477 INFO L430 AbstractCegarLoop]: === Iteration 342 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:18,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:18,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1929265850, now seen corresponding path program 333 times [2021-06-12 17:35:18,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:18,477 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658561033] [2021-06-12 17:35:18,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:18,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:18,743 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:18,744 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658561033] [2021-06-12 17:35:18,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658561033] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:18,744 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:18,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:18,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576412397] [2021-06-12 17:35:18,744 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:18,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:18,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:18,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:18,744 INFO L87 Difference]: Start difference. First operand 9381 states and 25118 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:19,497 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:19,648 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:35:19,801 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:35:19,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:19,907 INFO L93 Difference]: Finished difference Result 11966 states and 31163 transitions. [2021-06-12 17:35:19,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:19,907 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:19,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:19,917 INFO L225 Difference]: With dead ends: 11966 [2021-06-12 17:35:19,917 INFO L226 Difference]: Without dead ends: 11966 [2021-06-12 17:35:19,917 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1096.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11966 states. [2021-06-12 17:35:20,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11966 to 9365. [2021-06-12 17:35:20,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9365 states, 9363 states have (on average 2.677774217665278) internal successors, (25072), 9364 states have internal predecessors, (25072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:20,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9365 states to 9365 states and 25072 transitions. [2021-06-12 17:35:20,054 INFO L78 Accepts]: Start accepts. Automaton has 9365 states and 25072 transitions. Word has length 114 [2021-06-12 17:35:20,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:20,054 INFO L482 AbstractCegarLoop]: Abstraction has 9365 states and 25072 transitions. [2021-06-12 17:35:20,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:20,054 INFO L276 IsEmpty]: Start isEmpty. Operand 9365 states and 25072 transitions. [2021-06-12 17:35:20,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:20,061 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:20,061 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:20,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2021-06-12 17:35:20,061 INFO L430 AbstractCegarLoop]: === Iteration 343 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:20,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:20,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1131402390, now seen corresponding path program 334 times [2021-06-12 17:35:20,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:20,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892435523] [2021-06-12 17:35:20,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:20,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:20,323 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:20,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892435523] [2021-06-12 17:35:20,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892435523] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:20,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:20,323 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:20,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138378915] [2021-06-12 17:35:20,323 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:20,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:20,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:20,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:20,324 INFO L87 Difference]: Start difference. First operand 9365 states and 25072 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:21,090 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:21,242 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:35:21,404 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:35:21,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:21,541 INFO L93 Difference]: Finished difference Result 15079 states and 39113 transitions. [2021-06-12 17:35:21,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:21,541 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:21,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:21,554 INFO L225 Difference]: With dead ends: 15079 [2021-06-12 17:35:21,554 INFO L226 Difference]: Without dead ends: 15079 [2021-06-12 17:35:21,554 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1091.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:21,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15079 states. [2021-06-12 17:35:21,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15079 to 9381. [2021-06-12 17:35:21,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9381 states, 9379 states have (on average 2.678110672779614) internal successors, (25118), 9380 states have internal predecessors, (25118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:21,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9381 states to 9381 states and 25118 transitions. [2021-06-12 17:35:21,690 INFO L78 Accepts]: Start accepts. Automaton has 9381 states and 25118 transitions. Word has length 114 [2021-06-12 17:35:21,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:21,690 INFO L482 AbstractCegarLoop]: Abstraction has 9381 states and 25118 transitions. [2021-06-12 17:35:21,690 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:21,690 INFO L276 IsEmpty]: Start isEmpty. Operand 9381 states and 25118 transitions. [2021-06-12 17:35:21,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:21,698 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:21,698 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:21,698 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2021-06-12 17:35:21,698 INFO L430 AbstractCegarLoop]: === Iteration 344 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:21,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:21,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1379949370, now seen corresponding path program 335 times [2021-06-12 17:35:21,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:21,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511732544] [2021-06-12 17:35:21,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:21,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:21,962 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:21,962 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511732544] [2021-06-12 17:35:21,962 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511732544] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:21,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:21,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:21,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198721808] [2021-06-12 17:35:21,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:21,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:21,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:21,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:21,963 INFO L87 Difference]: Start difference. First operand 9381 states and 25118 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:22,738 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:22,878 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:23,036 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:23,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:23,133 INFO L93 Difference]: Finished difference Result 12144 states and 31639 transitions. [2021-06-12 17:35:23,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:23,133 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:23,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:23,143 INFO L225 Difference]: With dead ends: 12144 [2021-06-12 17:35:23,143 INFO L226 Difference]: Without dead ends: 12144 [2021-06-12 17:35:23,143 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1107.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:23,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12144 states. [2021-06-12 17:35:23,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12144 to 9349. [2021-06-12 17:35:23,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9349 states, 9347 states have (on average 2.6774366106772227) internal successors, (25026), 9348 states have internal predecessors, (25026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:23,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9349 states to 9349 states and 25026 transitions. [2021-06-12 17:35:23,261 INFO L78 Accepts]: Start accepts. Automaton has 9349 states and 25026 transitions. Word has length 114 [2021-06-12 17:35:23,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:23,261 INFO L482 AbstractCegarLoop]: Abstraction has 9349 states and 25026 transitions. [2021-06-12 17:35:23,261 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:23,261 INFO L276 IsEmpty]: Start isEmpty. Operand 9349 states and 25026 transitions. [2021-06-12 17:35:23,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:23,268 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:23,268 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:23,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2021-06-12 17:35:23,268 INFO L430 AbstractCegarLoop]: === Iteration 345 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:23,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:23,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1894747620, now seen corresponding path program 336 times [2021-06-12 17:35:23,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:23,268 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270031466] [2021-06-12 17:35:23,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:23,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:23,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:23,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270031466] [2021-06-12 17:35:23,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270031466] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:23,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:23,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:23,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637894058] [2021-06-12 17:35:23,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:23,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:23,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:23,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:23,540 INFO L87 Difference]: Start difference. First operand 9349 states and 25026 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:24,288 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:24,459 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:35:24,617 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:35:24,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:24,736 INFO L93 Difference]: Finished difference Result 15589 states and 40505 transitions. [2021-06-12 17:35:24,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:24,736 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:24,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:24,751 INFO L225 Difference]: With dead ends: 15589 [2021-06-12 17:35:24,751 INFO L226 Difference]: Without dead ends: 15589 [2021-06-12 17:35:24,751 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1119.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:24,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15589 states. [2021-06-12 17:35:24,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15589 to 9397. [2021-06-12 17:35:24,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9397 states, 9395 states have (on average 2.6784459819052686) internal successors, (25164), 9396 states have internal predecessors, (25164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:24,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9397 states to 9397 states and 25164 transitions. [2021-06-12 17:35:24,884 INFO L78 Accepts]: Start accepts. Automaton has 9397 states and 25164 transitions. Word has length 114 [2021-06-12 17:35:24,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:24,884 INFO L482 AbstractCegarLoop]: Abstraction has 9397 states and 25164 transitions. [2021-06-12 17:35:24,885 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:24,885 INFO L276 IsEmpty]: Start isEmpty. Operand 9397 states and 25164 transitions. [2021-06-12 17:35:24,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:24,892 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:24,892 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:24,892 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2021-06-12 17:35:24,892 INFO L430 AbstractCegarLoop]: === Iteration 346 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:24,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:24,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1646200640, now seen corresponding path program 337 times [2021-06-12 17:35:24,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:24,892 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411978604] [2021-06-12 17:35:24,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:25,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:25,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:25,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411978604] [2021-06-12 17:35:25,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411978604] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:25,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:25,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:25,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140976379] [2021-06-12 17:35:25,162 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:25,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:25,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:25,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:25,163 INFO L87 Difference]: Start difference. First operand 9397 states and 25164 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:25,916 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:26,060 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:26,222 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:26,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:26,338 INFO L93 Difference]: Finished difference Result 15429 states and 40103 transitions. [2021-06-12 17:35:26,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:26,338 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:26,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:26,351 INFO L225 Difference]: With dead ends: 15429 [2021-06-12 17:35:26,352 INFO L226 Difference]: Without dead ends: 15429 [2021-06-12 17:35:26,352 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1094.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:26,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15429 states. [2021-06-12 17:35:26,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15429 to 9381. [2021-06-12 17:35:26,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9381 states, 9379 states have (on average 2.678110672779614) internal successors, (25118), 9380 states have internal predecessors, (25118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:26,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9381 states to 9381 states and 25118 transitions. [2021-06-12 17:35:26,512 INFO L78 Accepts]: Start accepts. Automaton has 9381 states and 25118 transitions. Word has length 114 [2021-06-12 17:35:26,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:26,512 INFO L482 AbstractCegarLoop]: Abstraction has 9381 states and 25118 transitions. [2021-06-12 17:35:26,512 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:26,512 INFO L276 IsEmpty]: Start isEmpty. Operand 9381 states and 25118 transitions. [2021-06-12 17:35:26,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:26,519 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:26,519 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:26,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2021-06-12 17:35:26,519 INFO L430 AbstractCegarLoop]: === Iteration 347 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:26,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:26,519 INFO L82 PathProgramCache]: Analyzing trace with hash 489383336, now seen corresponding path program 338 times [2021-06-12 17:35:26,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:26,520 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256113730] [2021-06-12 17:35:26,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:26,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:26,791 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:26,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256113730] [2021-06-12 17:35:26,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256113730] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:26,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:26,791 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:26,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450217843] [2021-06-12 17:35:26,791 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:26,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:26,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:26,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:26,791 INFO L87 Difference]: Start difference. First operand 9381 states and 25118 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:27,711 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:27,875 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:27,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:27,989 INFO L93 Difference]: Finished difference Result 12580 states and 32843 transitions. [2021-06-12 17:35:27,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:27,989 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:27,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:28,000 INFO L225 Difference]: With dead ends: 12580 [2021-06-12 17:35:28,000 INFO L226 Difference]: Without dead ends: 12580 [2021-06-12 17:35:28,000 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1092.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:28,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12580 states. [2021-06-12 17:35:28,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12580 to 9317. [2021-06-12 17:35:28,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9317 states, 9315 states have (on average 2.6767579173376275) internal successors, (24934), 9316 states have internal predecessors, (24934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:28,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9317 states to 9317 states and 24934 transitions. [2021-06-12 17:35:28,119 INFO L78 Accepts]: Start accepts. Automaton has 9317 states and 24934 transitions. Word has length 114 [2021-06-12 17:35:28,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:28,119 INFO L482 AbstractCegarLoop]: Abstraction has 9317 states and 24934 transitions. [2021-06-12 17:35:28,119 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:28,119 INFO L276 IsEmpty]: Start isEmpty. Operand 9317 states and 24934 transitions. [2021-06-12 17:35:28,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:28,126 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:28,126 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:28,126 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2021-06-12 17:35:28,126 INFO L430 AbstractCegarLoop]: === Iteration 348 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:28,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:28,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1995860094, now seen corresponding path program 339 times [2021-06-12 17:35:28,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:28,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231244025] [2021-06-12 17:35:28,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:28,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:28,412 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:28,412 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231244025] [2021-06-12 17:35:28,412 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231244025] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:28,412 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:28,412 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:28,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296403980] [2021-06-12 17:35:28,412 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:28,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:28,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:28,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:28,412 INFO L87 Difference]: Start difference. First operand 9317 states and 24934 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:29,205 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:29,361 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:35:29,522 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:35:29,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:29,658 INFO L93 Difference]: Finished difference Result 16099 states and 41897 transitions. [2021-06-12 17:35:29,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:29,659 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:29,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:29,672 INFO L225 Difference]: With dead ends: 16099 [2021-06-12 17:35:29,672 INFO L226 Difference]: Without dead ends: 16099 [2021-06-12 17:35:29,673 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1131.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:29,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16099 states. [2021-06-12 17:35:29,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16099 to 9381. [2021-06-12 17:35:29,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9381 states, 9379 states have (on average 2.678110672779614) internal successors, (25118), 9380 states have internal predecessors, (25118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:29,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9381 states to 9381 states and 25118 transitions. [2021-06-12 17:35:29,805 INFO L78 Accepts]: Start accepts. Automaton has 9381 states and 25118 transitions. Word has length 114 [2021-06-12 17:35:29,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:29,805 INFO L482 AbstractCegarLoop]: Abstraction has 9381 states and 25118 transitions. [2021-06-12 17:35:29,805 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:29,805 INFO L276 IsEmpty]: Start isEmpty. Operand 9381 states and 25118 transitions. [2021-06-12 17:35:29,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:29,812 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:29,812 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:29,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2021-06-12 17:35:29,812 INFO L430 AbstractCegarLoop]: === Iteration 349 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:29,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:29,812 INFO L82 PathProgramCache]: Analyzing trace with hash 2050560222, now seen corresponding path program 340 times [2021-06-12 17:35:29,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:29,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078361679] [2021-06-12 17:35:29,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:30,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:30,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:30,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078361679] [2021-06-12 17:35:30,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078361679] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:30,091 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:30,091 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:30,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025630327] [2021-06-12 17:35:30,092 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:30,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:30,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:30,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:30,092 INFO L87 Difference]: Start difference. First operand 9381 states and 25118 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:30,842 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:31,007 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:31,165 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:31,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:31,281 INFO L93 Difference]: Finished difference Result 15939 states and 41495 transitions. [2021-06-12 17:35:31,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:31,281 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:31,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:31,296 INFO L225 Difference]: With dead ends: 15939 [2021-06-12 17:35:31,296 INFO L226 Difference]: Without dead ends: 15939 [2021-06-12 17:35:31,297 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1094.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:31,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15939 states. [2021-06-12 17:35:31,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15939 to 9365. [2021-06-12 17:35:31,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9365 states, 9363 states have (on average 2.677774217665278) internal successors, (25072), 9364 states have internal predecessors, (25072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:31,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9365 states to 9365 states and 25072 transitions. [2021-06-12 17:35:31,429 INFO L78 Accepts]: Start accepts. Automaton has 9365 states and 25072 transitions. Word has length 114 [2021-06-12 17:35:31,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:31,429 INFO L482 AbstractCegarLoop]: Abstraction has 9365 states and 25072 transitions. [2021-06-12 17:35:31,429 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:31,429 INFO L276 IsEmpty]: Start isEmpty. Operand 9365 states and 25072 transitions. [2021-06-12 17:35:31,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:31,437 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:31,437 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:31,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2021-06-12 17:35:31,437 INFO L430 AbstractCegarLoop]: === Iteration 350 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:31,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:31,437 INFO L82 PathProgramCache]: Analyzing trace with hash 893742918, now seen corresponding path program 341 times [2021-06-12 17:35:31,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:31,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954976666] [2021-06-12 17:35:31,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:31,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:31,721 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:31,721 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954976666] [2021-06-12 17:35:31,721 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954976666] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:31,721 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:31,721 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:31,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410665378] [2021-06-12 17:35:31,722 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:31,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:31,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:31,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:31,722 INFO L87 Difference]: Start difference. First operand 9365 states and 25072 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:32,632 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:32,798 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:32,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:32,923 INFO L93 Difference]: Finished difference Result 16227 states and 42323 transitions. [2021-06-12 17:35:32,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:32,924 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:32,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:32,938 INFO L225 Difference]: With dead ends: 16227 [2021-06-12 17:35:32,938 INFO L226 Difference]: Without dead ends: 16227 [2021-06-12 17:35:32,938 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1110.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:32,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16227 states. [2021-06-12 17:35:33,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16227 to 9333. [2021-06-12 17:35:33,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9333 states, 9331 states have (on average 2.677097845890044) internal successors, (24980), 9332 states have internal predecessors, (24980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:33,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9333 states to 9333 states and 24980 transitions. [2021-06-12 17:35:33,095 INFO L78 Accepts]: Start accepts. Automaton has 9333 states and 24980 transitions. Word has length 114 [2021-06-12 17:35:33,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:33,095 INFO L482 AbstractCegarLoop]: Abstraction has 9333 states and 24980 transitions. [2021-06-12 17:35:33,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:33,095 INFO L276 IsEmpty]: Start isEmpty. Operand 9333 states and 24980 transitions. [2021-06-12 17:35:33,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:33,102 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:33,102 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:33,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2021-06-12 17:35:33,102 INFO L430 AbstractCegarLoop]: === Iteration 351 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:33,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:33,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1693041240, now seen corresponding path program 342 times [2021-06-12 17:35:33,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:33,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004239747] [2021-06-12 17:35:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:33,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:33,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:33,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004239747] [2021-06-12 17:35:33,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004239747] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:33,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:33,397 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:33,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779733718] [2021-06-12 17:35:33,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:33,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:33,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:33,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:33,397 INFO L87 Difference]: Start difference. First operand 9333 states and 24980 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:34,322 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:34,489 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:34,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:34,606 INFO L93 Difference]: Finished difference Result 12942 states and 33859 transitions. [2021-06-12 17:35:34,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:34,606 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:34,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:34,617 INFO L225 Difference]: With dead ends: 12942 [2021-06-12 17:35:34,617 INFO L226 Difference]: Without dead ends: 12942 [2021-06-12 17:35:34,617 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1118.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:34,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12942 states. [2021-06-12 17:35:34,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12942 to 9301. [2021-06-12 17:35:34,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9301 states, 9299 states have (on average 2.6764168190127973) internal successors, (24888), 9300 states have internal predecessors, (24888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:34,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9301 states to 9301 states and 24888 transitions. [2021-06-12 17:35:34,731 INFO L78 Accepts]: Start accepts. Automaton has 9301 states and 24888 transitions. Word has length 114 [2021-06-12 17:35:34,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:34,731 INFO L482 AbstractCegarLoop]: Abstraction has 9301 states and 24888 transitions. [2021-06-12 17:35:34,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:34,731 INFO L276 IsEmpty]: Start isEmpty. Operand 9301 states and 24888 transitions. [2021-06-12 17:35:34,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:34,738 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:34,738 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:34,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2021-06-12 17:35:34,738 INFO L430 AbstractCegarLoop]: === Iteration 352 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:34,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:34,738 INFO L82 PathProgramCache]: Analyzing trace with hash -818630610, now seen corresponding path program 343 times [2021-06-12 17:35:34,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:34,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202929043] [2021-06-12 17:35:34,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:35,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:35,032 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:35,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202929043] [2021-06-12 17:35:35,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202929043] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:35,032 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:35,032 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:35,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351409034] [2021-06-12 17:35:35,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:35,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:35,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:35,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:35,032 INFO L87 Difference]: Start difference. First operand 9301 states and 24888 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:35,818 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:35,972 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-06-12 17:35:36,133 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-06-12 17:35:36,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:36,246 INFO L93 Difference]: Finished difference Result 11228 states and 29392 transitions. [2021-06-12 17:35:36,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:36,246 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:36,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:36,255 INFO L225 Difference]: With dead ends: 11228 [2021-06-12 17:35:36,255 INFO L226 Difference]: Without dead ends: 11228 [2021-06-12 17:35:36,255 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1120.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:36,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11228 states. [2021-06-12 17:35:36,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11228 to 9197. [2021-06-12 17:35:36,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9197 states, 9195 states have (on average 2.6738444806960304) internal successors, (24586), 9196 states have internal predecessors, (24586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:36,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9197 states to 9197 states and 24586 transitions. [2021-06-12 17:35:36,363 INFO L78 Accepts]: Start accepts. Automaton has 9197 states and 24586 transitions. Word has length 114 [2021-06-12 17:35:36,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:36,363 INFO L482 AbstractCegarLoop]: Abstraction has 9197 states and 24586 transitions. [2021-06-12 17:35:36,363 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:36,363 INFO L276 IsEmpty]: Start isEmpty. Operand 9197 states and 24586 transitions. [2021-06-12 17:35:36,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:36,370 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:36,370 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:36,370 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2021-06-12 17:35:36,370 INFO L430 AbstractCegarLoop]: === Iteration 353 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:36,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:36,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1067177590, now seen corresponding path program 344 times [2021-06-12 17:35:36,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:36,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979677072] [2021-06-12 17:35:36,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:36,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:36,660 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:36,660 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979677072] [2021-06-12 17:35:36,660 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979677072] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:36,660 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:36,660 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:36,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626987512] [2021-06-12 17:35:36,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:36,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:36,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:36,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:36,660 INFO L87 Difference]: Start difference. First operand 9197 states and 24586 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:37,418 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-06-12 17:35:37,584 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:37,745 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:37,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:37,839 INFO L93 Difference]: Finished difference Result 11068 states and 28990 transitions. [2021-06-12 17:35:37,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:37,840 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:37,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:37,848 INFO L225 Difference]: With dead ends: 11068 [2021-06-12 17:35:37,848 INFO L226 Difference]: Without dead ends: 11068 [2021-06-12 17:35:37,848 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1141.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:37,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2021-06-12 17:35:37,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 9181. [2021-06-12 17:35:37,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9181 states, 9179 states have (on average 2.673493844645386) internal successors, (24540), 9180 states have internal predecessors, (24540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:37,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9181 states to 9181 states and 24540 transitions. [2021-06-12 17:35:37,950 INFO L78 Accepts]: Start accepts. Automaton has 9181 states and 24540 transitions. Word has length 114 [2021-06-12 17:35:37,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:37,950 INFO L482 AbstractCegarLoop]: Abstraction has 9181 states and 24540 transitions. [2021-06-12 17:35:37,950 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:37,950 INFO L276 IsEmpty]: Start isEmpty. Operand 9181 states and 24540 transitions. [2021-06-12 17:35:37,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:37,957 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:37,957 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:37,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2021-06-12 17:35:37,957 INFO L430 AbstractCegarLoop]: === Iteration 354 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:37,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:37,958 INFO L82 PathProgramCache]: Analyzing trace with hash 2070972402, now seen corresponding path program 345 times [2021-06-12 17:35:37,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:37,958 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917003250] [2021-06-12 17:35:37,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:38,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:38,275 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:38,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917003250] [2021-06-12 17:35:38,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917003250] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:38,275 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:38,275 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:38,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668754780] [2021-06-12 17:35:38,276 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:38,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:38,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:38,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:38,276 INFO L87 Difference]: Start difference. First operand 9181 states and 24540 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:39,165 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:39,328 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:39,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:39,429 INFO L93 Difference]: Finished difference Result 11356 states and 29818 transitions. [2021-06-12 17:35:39,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:39,429 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:39,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:39,438 INFO L225 Difference]: With dead ends: 11356 [2021-06-12 17:35:39,438 INFO L226 Difference]: Without dead ends: 11356 [2021-06-12 17:35:39,439 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1124.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:39,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11356 states. [2021-06-12 17:35:39,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11356 to 9149. [2021-06-12 17:35:39,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9149 states, 9147 states have (on average 2.672788892533071) internal successors, (24448), 9148 states have internal predecessors, (24448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:39,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9149 states to 9149 states and 24448 transitions. [2021-06-12 17:35:39,547 INFO L78 Accepts]: Start accepts. Automaton has 9149 states and 24448 transitions. Word has length 114 [2021-06-12 17:35:39,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:39,547 INFO L482 AbstractCegarLoop]: Abstraction has 9149 states and 24448 transitions. [2021-06-12 17:35:39,547 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:39,547 INFO L276 IsEmpty]: Start isEmpty. Operand 9149 states and 24448 transitions. [2021-06-12 17:35:39,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:39,554 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:39,554 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:39,554 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2021-06-12 17:35:39,554 INFO L430 AbstractCegarLoop]: === Iteration 355 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:39,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:39,554 INFO L82 PathProgramCache]: Analyzing trace with hash -515811756, now seen corresponding path program 346 times [2021-06-12 17:35:39,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:39,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798129131] [2021-06-12 17:35:39,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:39,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:39,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:39,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798129131] [2021-06-12 17:35:39,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798129131] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:39,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:39,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:39,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2333243] [2021-06-12 17:35:39,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:39,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:39,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:39,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:39,895 INFO L87 Difference]: Start difference. First operand 9149 states and 24448 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:40,791 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:40,955 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:41,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:41,063 INFO L93 Difference]: Finished difference Result 11644 states and 30646 transitions. [2021-06-12 17:35:41,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:41,063 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:41,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:41,073 INFO L225 Difference]: With dead ends: 11644 [2021-06-12 17:35:41,073 INFO L226 Difference]: Without dead ends: 11644 [2021-06-12 17:35:41,073 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1098.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:41,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11644 states. [2021-06-12 17:35:41,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11644 to 9133. [2021-06-12 17:35:41,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9133 states, 9131 states have (on average 2.672434563574636) internal successors, (24402), 9132 states have internal predecessors, (24402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:41,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9133 states to 9133 states and 24402 transitions. [2021-06-12 17:35:41,179 INFO L78 Accepts]: Start accepts. Automaton has 9133 states and 24402 transitions. Word has length 114 [2021-06-12 17:35:41,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:41,179 INFO L482 AbstractCegarLoop]: Abstraction has 9133 states and 24402 transitions. [2021-06-12 17:35:41,179 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:41,179 INFO L276 IsEmpty]: Start isEmpty. Operand 9133 states and 24402 transitions. [2021-06-12 17:35:41,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:41,186 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:41,186 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:41,186 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2021-06-12 17:35:41,186 INFO L430 AbstractCegarLoop]: === Iteration 356 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:41,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:41,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1534593850, now seen corresponding path program 347 times [2021-06-12 17:35:41,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:41,186 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369073658] [2021-06-12 17:35:41,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:41,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:41,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:41,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369073658] [2021-06-12 17:35:41,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369073658] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:41,486 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:41,486 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-12 17:35:41,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296816860] [2021-06-12 17:35:41,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-12 17:35:41,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:41,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-12 17:35:41,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:35:41,487 INFO L87 Difference]: Start difference. First operand 9133 states and 24402 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:42,391 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-12 17:35:42,553 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-12 17:35:42,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:42,647 INFO L93 Difference]: Finished difference Result 7997 states and 21166 transitions. [2021-06-12 17:35:42,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-12 17:35:42,647 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:42,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:42,653 INFO L225 Difference]: With dead ends: 7997 [2021-06-12 17:35:42,653 INFO L226 Difference]: Without dead ends: 7997 [2021-06-12 17:35:42,653 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1125.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-06-12 17:35:42,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7997 states. [2021-06-12 17:35:42,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7997 to 7517. [2021-06-12 17:35:42,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7517 states, 7515 states have (on average 2.645642049234864) internal successors, (19882), 7516 states have internal predecessors, (19882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:42,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7517 states to 7517 states and 19882 transitions. [2021-06-12 17:35:42,727 INFO L78 Accepts]: Start accepts. Automaton has 7517 states and 19882 transitions. Word has length 114 [2021-06-12 17:35:42,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:42,728 INFO L482 AbstractCegarLoop]: Abstraction has 7517 states and 19882 transitions. [2021-06-12 17:35:42,728 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:42,728 INFO L276 IsEmpty]: Start isEmpty. Operand 7517 states and 19882 transitions. [2021-06-12 17:35:42,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:42,733 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:42,733 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:42,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2021-06-12 17:35:42,733 INFO L430 AbstractCegarLoop]: === Iteration 357 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:42,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:42,733 INFO L82 PathProgramCache]: Analyzing trace with hash -176701362, now seen corresponding path program 5 times [2021-06-12 17:35:42,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:42,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322179235] [2021-06-12 17:35:42,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:43,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:43,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:43,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322179235] [2021-06-12 17:35:43,227 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322179235] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:43,227 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:43,227 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-12 17:35:43,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735440660] [2021-06-12 17:35:43,227 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-12 17:35:43,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:43,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-12 17:35:43,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2021-06-12 17:35:43,228 INFO L87 Difference]: Start difference. First operand 7517 states and 19882 transitions. Second operand has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:49,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:49,178 INFO L93 Difference]: Finished difference Result 10041 states and 26611 transitions. [2021-06-12 17:35:49,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-06-12 17:35:49,178 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:49,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:49,186 INFO L225 Difference]: With dead ends: 10041 [2021-06-12 17:35:49,186 INFO L226 Difference]: Without dead ends: 10041 [2021-06-12 17:35:49,187 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3039 ImplicationChecksByTransitivity, 4417.8ms TimeCoverageRelationStatistics Valid=2899, Invalid=9757, Unknown=0, NotChecked=0, Total=12656 [2021-06-12 17:35:49,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10041 states. [2021-06-12 17:35:49,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10041 to 5906. [2021-06-12 17:35:49,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5906 states, 5904 states have (on average 2.6573509485094853) internal successors, (15689), 5905 states have internal predecessors, (15689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:49,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5906 states to 5906 states and 15689 transitions. [2021-06-12 17:35:49,254 INFO L78 Accepts]: Start accepts. Automaton has 5906 states and 15689 transitions. Word has length 114 [2021-06-12 17:35:49,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:49,255 INFO L482 AbstractCegarLoop]: Abstraction has 5906 states and 15689 transitions. [2021-06-12 17:35:49,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:49,255 INFO L276 IsEmpty]: Start isEmpty. Operand 5906 states and 15689 transitions. [2021-06-12 17:35:49,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-06-12 17:35:49,259 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:49,259 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:49,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2021-06-12 17:35:49,259 INFO L430 AbstractCegarLoop]: === Iteration 358 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:49,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:49,259 INFO L82 PathProgramCache]: Analyzing trace with hash 213229766, now seen corresponding path program 348 times [2021-06-12 17:35:49,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:49,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268538588] [2021-06-12 17:35:49,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:49,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:49,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:49,521 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268538588] [2021-06-12 17:35:49,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268538588] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:49,521 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:49,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-12 17:35:49,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289744364] [2021-06-12 17:35:49,521 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-12 17:35:49,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:49,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-12 17:35:49,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:35:49,521 INFO L87 Difference]: Start difference. First operand 5906 states and 15689 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:50,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:50,338 INFO L93 Difference]: Finished difference Result 6154 states and 16202 transitions. [2021-06-12 17:35:50,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-12 17:35:50,338 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-06-12 17:35:50,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:50,344 INFO L225 Difference]: With dead ends: 6154 [2021-06-12 17:35:50,344 INFO L226 Difference]: Without dead ends: 6154 [2021-06-12 17:35:50,344 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 731.0ms TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2021-06-12 17:35:50,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2021-06-12 17:35:50,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 5675. [2021-06-12 17:35:50,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5675 states, 5674 states have (on average 2.6765949947127248) internal successors, (15187), 5674 states have internal predecessors, (15187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:50,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5675 states to 5675 states and 15187 transitions. [2021-06-12 17:35:50,423 INFO L78 Accepts]: Start accepts. Automaton has 5675 states and 15187 transitions. Word has length 114 [2021-06-12 17:35:50,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:50,423 INFO L482 AbstractCegarLoop]: Abstraction has 5675 states and 15187 transitions. [2021-06-12 17:35:50,423 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:50,423 INFO L276 IsEmpty]: Start isEmpty. Operand 5675 states and 15187 transitions. [2021-06-12 17:35:50,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:35:50,427 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:50,427 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:50,427 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2021-06-12 17:35:50,427 INFO L430 AbstractCegarLoop]: === Iteration 359 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:50,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:50,427 INFO L82 PathProgramCache]: Analyzing trace with hash -836074665, now seen corresponding path program 1 times [2021-06-12 17:35:50,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:50,427 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044771815] [2021-06-12 17:35:50,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:51,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:51,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:51,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044771815] [2021-06-12 17:35:51,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044771815] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:51,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:51,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:35:51,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604689359] [2021-06-12 17:35:51,657 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:35:51,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:51,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:35:51,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:35:51,658 INFO L87 Difference]: Start difference. First operand 5675 states and 15187 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:52,619 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-12 17:35:52,810 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-06-12 17:35:53,220 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-06-12 17:35:53,441 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-06-12 17:35:53,697 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-06-12 17:35:54,033 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-12 17:35:54,383 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 92 [2021-06-12 17:35:54,873 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 94 [2021-06-12 17:35:56,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:35:56,419 INFO L93 Difference]: Finished difference Result 7687 states and 20275 transitions. [2021-06-12 17:35:56,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-12 17:35:56,419 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:35:56,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:35:56,425 INFO L225 Difference]: With dead ends: 7687 [2021-06-12 17:35:56,425 INFO L226 Difference]: Without dead ends: 7211 [2021-06-12 17:35:56,425 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 4338.1ms TimeCoverageRelationStatistics Valid=754, Invalid=3668, Unknown=0, NotChecked=0, Total=4422 [2021-06-12 17:35:56,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7211 states. [2021-06-12 17:35:56,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7211 to 6683. [2021-06-12 17:35:56,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6683 states, 6682 states have (on average 2.6750972762645913) internal successors, (17875), 6682 states have internal predecessors, (17875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:56,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6683 states to 6683 states and 17875 transitions. [2021-06-12 17:35:56,489 INFO L78 Accepts]: Start accepts. Automaton has 6683 states and 17875 transitions. Word has length 120 [2021-06-12 17:35:56,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:35:56,489 INFO L482 AbstractCegarLoop]: Abstraction has 6683 states and 17875 transitions. [2021-06-12 17:35:56,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:56,489 INFO L276 IsEmpty]: Start isEmpty. Operand 6683 states and 17875 transitions. [2021-06-12 17:35:56,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:35:56,494 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:35:56,494 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:35:56,494 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2021-06-12 17:35:56,494 INFO L430 AbstractCegarLoop]: === Iteration 360 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:35:56,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:35:56,495 INFO L82 PathProgramCache]: Analyzing trace with hash -966941329, now seen corresponding path program 2 times [2021-06-12 17:35:56,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:35:56,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389932997] [2021-06-12 17:35:56,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:35:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:35:57,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:35:57,726 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:35:57,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389932997] [2021-06-12 17:35:57,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389932997] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:35:57,726 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:35:57,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:35:57,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861292670] [2021-06-12 17:35:57,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:35:57,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:35:57,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:35:57,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:35:57,727 INFO L87 Difference]: Start difference. First operand 6683 states and 17875 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:35:58,546 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-06-12 17:35:58,707 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-12 17:35:58,897 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-06-12 17:35:59,299 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-06-12 17:35:59,523 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-06-12 17:35:59,785 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-06-12 17:36:00,128 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-12 17:36:00,486 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 92 [2021-06-12 17:36:00,995 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 94 [2021-06-12 17:36:02,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:36:02,604 INFO L93 Difference]: Finished difference Result 7344 states and 19352 transitions. [2021-06-12 17:36:02,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-12 17:36:02,605 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:36:02,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:36:02,611 INFO L225 Difference]: With dead ends: 7344 [2021-06-12 17:36:02,611 INFO L226 Difference]: Without dead ends: 7139 [2021-06-12 17:36:02,611 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 4437.5ms TimeCoverageRelationStatistics Valid=758, Invalid=3798, Unknown=0, NotChecked=0, Total=4556 [2021-06-12 17:36:02,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7139 states. [2021-06-12 17:36:02,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7139 to 6611. [2021-06-12 17:36:02,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6611 states, 6610 states have (on average 2.6751891074130105) internal successors, (17683), 6610 states have internal predecessors, (17683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:02,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6611 states to 6611 states and 17683 transitions. [2021-06-12 17:36:02,677 INFO L78 Accepts]: Start accepts. Automaton has 6611 states and 17683 transitions. Word has length 120 [2021-06-12 17:36:02,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:36:02,677 INFO L482 AbstractCegarLoop]: Abstraction has 6611 states and 17683 transitions. [2021-06-12 17:36:02,677 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:02,677 INFO L276 IsEmpty]: Start isEmpty. Operand 6611 states and 17683 transitions. [2021-06-12 17:36:02,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:36:02,682 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:36:02,682 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:36:02,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2021-06-12 17:36:02,682 INFO L430 AbstractCegarLoop]: === Iteration 361 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:36:02,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:36:02,682 INFO L82 PathProgramCache]: Analyzing trace with hash -902632451, now seen corresponding path program 3 times [2021-06-12 17:36:02,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:36:02,682 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514541118] [2021-06-12 17:36:02,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:36:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:36:03,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:36:03,930 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:36:03,930 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514541118] [2021-06-12 17:36:03,930 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514541118] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:36:03,930 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:36:03,930 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:36:03,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638364275] [2021-06-12 17:36:03,930 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:36:03,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:36:03,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:36:03,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:36:03,931 INFO L87 Difference]: Start difference. First operand 6611 states and 17683 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:04,852 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-12 17:36:05,038 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-06-12 17:36:05,421 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-06-12 17:36:05,642 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-06-12 17:36:05,898 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-06-12 17:36:06,224 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-12 17:36:06,577 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 92 [2021-06-12 17:36:07,041 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 94 [2021-06-12 17:36:08,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:36:08,447 INFO L93 Difference]: Finished difference Result 7251 states and 19128 transitions. [2021-06-12 17:36:08,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-12 17:36:08,448 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:36:08,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:36:08,454 INFO L225 Difference]: With dead ends: 7251 [2021-06-12 17:36:08,454 INFO L226 Difference]: Without dead ends: 6706 [2021-06-12 17:36:08,454 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 4346.4ms TimeCoverageRelationStatistics Valid=720, Invalid=3570, Unknown=0, NotChecked=0, Total=4290 [2021-06-12 17:36:08,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6706 states. [2021-06-12 17:36:08,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6706 to 6275. [2021-06-12 17:36:08,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6275 states, 6274 states have (on average 2.688396557220274) internal successors, (16867), 6274 states have internal predecessors, (16867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:08,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6275 states to 6275 states and 16867 transitions. [2021-06-12 17:36:08,518 INFO L78 Accepts]: Start accepts. Automaton has 6275 states and 16867 transitions. Word has length 120 [2021-06-12 17:36:08,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:36:08,518 INFO L482 AbstractCegarLoop]: Abstraction has 6275 states and 16867 transitions. [2021-06-12 17:36:08,518 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:08,518 INFO L276 IsEmpty]: Start isEmpty. Operand 6275 states and 16867 transitions. [2021-06-12 17:36:08,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:36:08,523 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:36:08,523 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:36:08,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2021-06-12 17:36:08,523 INFO L430 AbstractCegarLoop]: === Iteration 362 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:36:08,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:36:08,523 INFO L82 PathProgramCache]: Analyzing trace with hash 5258265, now seen corresponding path program 4 times [2021-06-12 17:36:08,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:36:08,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596564480] [2021-06-12 17:36:08,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:36:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:36:09,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:36:09,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:36:09,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596564480] [2021-06-12 17:36:09,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596564480] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:36:09,344 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:36:09,344 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:36:09,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342938115] [2021-06-12 17:36:09,344 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:36:09,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:36:09,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:36:09,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:36:09,345 INFO L87 Difference]: Start difference. First operand 6275 states and 16867 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:10,364 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-12 17:36:10,705 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-06-12 17:36:10,886 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-06-12 17:36:11,093 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-06-12 17:36:11,369 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-06-12 17:36:11,659 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 88 [2021-06-12 17:36:12,089 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 90 [2021-06-12 17:36:12,538 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 93 [2021-06-12 17:36:13,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:36:13,584 INFO L93 Difference]: Finished difference Result 6850 states and 18162 transitions. [2021-06-12 17:36:13,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-12 17:36:13,585 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:36:13,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:36:13,590 INFO L225 Difference]: With dead ends: 6850 [2021-06-12 17:36:13,590 INFO L226 Difference]: Without dead ends: 6613 [2021-06-12 17:36:13,591 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 3645.9ms TimeCoverageRelationStatistics Valid=743, Invalid=3547, Unknown=0, NotChecked=0, Total=4290 [2021-06-12 17:36:13,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6613 states. [2021-06-12 17:36:13,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6613 to 6251. [2021-06-12 17:36:13,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6251 states, 6250 states have (on average 2.69104) internal successors, (16819), 6250 states have internal predecessors, (16819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:13,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6251 states to 6251 states and 16819 transitions. [2021-06-12 17:36:13,653 INFO L78 Accepts]: Start accepts. Automaton has 6251 states and 16819 transitions. Word has length 120 [2021-06-12 17:36:13,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:36:13,653 INFO L482 AbstractCegarLoop]: Abstraction has 6251 states and 16819 transitions. [2021-06-12 17:36:13,653 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:13,653 INFO L276 IsEmpty]: Start isEmpty. Operand 6251 states and 16819 transitions. [2021-06-12 17:36:13,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:36:13,658 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:36:13,658 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:36:13,658 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2021-06-12 17:36:13,658 INFO L430 AbstractCegarLoop]: === Iteration 363 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:36:13,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:36:13,659 INFO L82 PathProgramCache]: Analyzing trace with hash 2984997, now seen corresponding path program 5 times [2021-06-12 17:36:13,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:36:13,659 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680442873] [2021-06-12 17:36:13,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:36:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:36:14,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:36:14,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:36:14,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680442873] [2021-06-12 17:36:14,458 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680442873] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:36:14,458 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:36:14,458 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:36:14,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042989549] [2021-06-12 17:36:14,458 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:36:14,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:36:14,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:36:14,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:36:14,458 INFO L87 Difference]: Start difference. First operand 6251 states and 16819 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:15,483 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-12 17:36:15,820 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-06-12 17:36:16,001 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-06-12 17:36:16,206 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-06-12 17:36:16,478 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-06-12 17:36:16,768 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 88 [2021-06-12 17:36:17,370 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 91 [2021-06-12 17:36:17,647 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 93 [2021-06-12 17:36:18,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:36:18,644 INFO L93 Difference]: Finished difference Result 6847 states and 18152 transitions. [2021-06-12 17:36:18,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-12 17:36:18,645 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:36:18,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:36:18,650 INFO L225 Difference]: With dead ends: 6847 [2021-06-12 17:36:18,650 INFO L226 Difference]: Without dead ends: 6552 [2021-06-12 17:36:18,650 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 3549.4ms TimeCoverageRelationStatistics Valid=724, Invalid=3436, Unknown=0, NotChecked=0, Total=4160 [2021-06-12 17:36:18,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6552 states. [2021-06-12 17:36:18,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6552 to 6182. [2021-06-12 17:36:18,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6182 states, 6181 states have (on average 2.686943860216793) internal successors, (16608), 6181 states have internal predecessors, (16608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:18,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6182 states to 6182 states and 16608 transitions. [2021-06-12 17:36:18,712 INFO L78 Accepts]: Start accepts. Automaton has 6182 states and 16608 transitions. Word has length 120 [2021-06-12 17:36:18,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:36:18,712 INFO L482 AbstractCegarLoop]: Abstraction has 6182 states and 16608 transitions. [2021-06-12 17:36:18,712 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:18,712 INFO L276 IsEmpty]: Start isEmpty. Operand 6182 states and 16608 transitions. [2021-06-12 17:36:18,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:36:18,717 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:36:18,717 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:36:18,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2021-06-12 17:36:18,718 INFO L430 AbstractCegarLoop]: === Iteration 364 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:36:18,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:36:18,718 INFO L82 PathProgramCache]: Analyzing trace with hash 522859321, now seen corresponding path program 6 times [2021-06-12 17:36:18,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:36:18,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009259689] [2021-06-12 17:36:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:36:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:36:19,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:36:19,532 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:36:19,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009259689] [2021-06-12 17:36:19,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009259689] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:36:19,532 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:36:19,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:36:19,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766090598] [2021-06-12 17:36:19,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:36:19,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:36:19,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:36:19,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:36:19,532 INFO L87 Difference]: Start difference. First operand 6182 states and 16608 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:20,549 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-06-12 17:36:20,886 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-06-12 17:36:21,068 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-12 17:36:21,274 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-06-12 17:36:21,541 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-06-12 17:36:21,924 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-06-12 17:36:22,189 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-06-12 17:36:23,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:36:23,799 INFO L93 Difference]: Finished difference Result 7656 states and 20164 transitions. [2021-06-12 17:36:23,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-12 17:36:23,799 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:36:23,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:36:23,805 INFO L225 Difference]: With dead ends: 7656 [2021-06-12 17:36:23,805 INFO L226 Difference]: Without dead ends: 7180 [2021-06-12 17:36:23,806 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 3697.5ms TimeCoverageRelationStatistics Valid=792, Invalid=3900, Unknown=0, NotChecked=0, Total=4692 [2021-06-12 17:36:23,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7180 states. [2021-06-12 17:36:23,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7180 to 6638. [2021-06-12 17:36:23,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6638 states, 6637 states have (on average 2.6686756064486965) internal successors, (17712), 6637 states have internal predecessors, (17712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:23,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6638 states to 6638 states and 17712 transitions. [2021-06-12 17:36:23,875 INFO L78 Accepts]: Start accepts. Automaton has 6638 states and 17712 transitions. Word has length 120 [2021-06-12 17:36:23,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:36:23,875 INFO L482 AbstractCegarLoop]: Abstraction has 6638 states and 17712 transitions. [2021-06-12 17:36:23,875 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:23,875 INFO L276 IsEmpty]: Start isEmpty. Operand 6638 states and 17712 transitions. [2021-06-12 17:36:23,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:36:23,880 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:36:23,880 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:36:23,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2021-06-12 17:36:23,880 INFO L430 AbstractCegarLoop]: === Iteration 365 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:36:23,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:36:23,880 INFO L82 PathProgramCache]: Analyzing trace with hash 391992657, now seen corresponding path program 7 times [2021-06-12 17:36:23,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:36:23,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549162155] [2021-06-12 17:36:23,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:36:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:36:24,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:36:24,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:36:24,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549162155] [2021-06-12 17:36:24,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549162155] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:36:24,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:36:24,699 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:36:24,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757984036] [2021-06-12 17:36:24,699 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:36:24,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:36:24,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:36:24,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:36:24,699 INFO L87 Difference]: Start difference. First operand 6638 states and 17712 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:25,783 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-06-12 17:36:26,142 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-06-12 17:36:26,326 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-12 17:36:26,536 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-06-12 17:36:26,820 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-06-12 17:36:27,259 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-06-12 17:36:27,535 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-06-12 17:36:29,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:36:29,326 INFO L93 Difference]: Finished difference Result 7313 states and 19241 transitions. [2021-06-12 17:36:29,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-12 17:36:29,327 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:36:29,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:36:29,332 INFO L225 Difference]: With dead ends: 7313 [2021-06-12 17:36:29,332 INFO L226 Difference]: Without dead ends: 7108 [2021-06-12 17:36:29,332 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 3789.6ms TimeCoverageRelationStatistics Valid=796, Invalid=4034, Unknown=0, NotChecked=0, Total=4830 [2021-06-12 17:36:29,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7108 states. [2021-06-12 17:36:29,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7108 to 6566. [2021-06-12 17:36:29,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6566 states, 6565 states have (on average 2.6686976389946686) internal successors, (17520), 6565 states have internal predecessors, (17520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:29,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6566 states to 6566 states and 17520 transitions. [2021-06-12 17:36:29,396 INFO L78 Accepts]: Start accepts. Automaton has 6566 states and 17520 transitions. Word has length 120 [2021-06-12 17:36:29,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:36:29,396 INFO L482 AbstractCegarLoop]: Abstraction has 6566 states and 17520 transitions. [2021-06-12 17:36:29,396 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:29,396 INFO L276 IsEmpty]: Start isEmpty. Operand 6566 states and 17520 transitions. [2021-06-12 17:36:29,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:36:29,401 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:36:29,401 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:36:29,401 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2021-06-12 17:36:29,401 INFO L430 AbstractCegarLoop]: === Iteration 366 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:36:29,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:36:29,401 INFO L82 PathProgramCache]: Analyzing trace with hash 456301535, now seen corresponding path program 8 times [2021-06-12 17:36:29,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:36:29,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785073323] [2021-06-12 17:36:29,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:36:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:36:30,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:36:30,194 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:36:30,194 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785073323] [2021-06-12 17:36:30,194 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785073323] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:36:30,194 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:36:30,194 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:36:30,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340659233] [2021-06-12 17:36:30,195 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:36:30,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:36:30,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:36:30,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:36:30,195 INFO L87 Difference]: Start difference. First operand 6566 states and 17520 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:31,220 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-06-12 17:36:31,562 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-06-12 17:36:31,743 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-12 17:36:31,948 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-06-12 17:36:32,219 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-06-12 17:36:32,625 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-06-12 17:36:32,892 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-06-12 17:36:34,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:36:34,522 INFO L93 Difference]: Finished difference Result 7220 states and 19017 transitions. [2021-06-12 17:36:34,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-12 17:36:34,522 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:36:34,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:36:34,527 INFO L225 Difference]: With dead ends: 7220 [2021-06-12 17:36:34,527 INFO L226 Difference]: Without dead ends: 6675 [2021-06-12 17:36:34,528 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 3666.4ms TimeCoverageRelationStatistics Valid=761, Invalid=3795, Unknown=0, NotChecked=0, Total=4556 [2021-06-12 17:36:34,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6675 states. [2021-06-12 17:36:34,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6675 to 6230. [2021-06-12 17:36:34,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6230 states, 6229 states have (on average 2.6816503451597367) internal successors, (16704), 6229 states have internal predecessors, (16704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:34,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6230 states to 6230 states and 16704 transitions. [2021-06-12 17:36:34,587 INFO L78 Accepts]: Start accepts. Automaton has 6230 states and 16704 transitions. Word has length 120 [2021-06-12 17:36:34,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:36:34,587 INFO L482 AbstractCegarLoop]: Abstraction has 6230 states and 16704 transitions. [2021-06-12 17:36:34,587 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:34,587 INFO L276 IsEmpty]: Start isEmpty. Operand 6230 states and 16704 transitions. [2021-06-12 17:36:34,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:36:34,592 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:36:34,592 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:36:34,592 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2021-06-12 17:36:34,592 INFO L430 AbstractCegarLoop]: === Iteration 367 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:36:34,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:36:34,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1364192251, now seen corresponding path program 9 times [2021-06-12 17:36:34,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:36:34,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073310877] [2021-06-12 17:36:34,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:36:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:36:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:36:35,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:36:35,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073310877] [2021-06-12 17:36:35,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073310877] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:36:35,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:36:35,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:36:35,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385473761] [2021-06-12 17:36:35,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:36:35,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:36:35,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:36:35,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:36:35,382 INFO L87 Difference]: Start difference. First operand 6230 states and 16704 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:36,414 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-12 17:36:36,762 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-06-12 17:36:36,945 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-06-12 17:36:37,154 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-06-12 17:36:37,433 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-06-12 17:36:37,852 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 86 [2021-06-12 17:36:38,123 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 90 [2021-06-12 17:36:38,736 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 93 [2021-06-12 17:36:39,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:36:39,854 INFO L93 Difference]: Finished difference Result 6819 states and 18051 transitions. [2021-06-12 17:36:39,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-12 17:36:39,854 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:36:39,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:36:39,860 INFO L225 Difference]: With dead ends: 6819 [2021-06-12 17:36:39,860 INFO L226 Difference]: Without dead ends: 6582 [2021-06-12 17:36:39,860 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 3766.8ms TimeCoverageRelationStatistics Valid=786, Invalid=3770, Unknown=0, NotChecked=0, Total=4556 [2021-06-12 17:36:39,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6582 states. [2021-06-12 17:36:39,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6582 to 6206. [2021-06-12 17:36:39,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6206 states, 6205 states have (on average 2.684286865431104) internal successors, (16656), 6205 states have internal predecessors, (16656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:39,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6206 states to 6206 states and 16656 transitions. [2021-06-12 17:36:39,918 INFO L78 Accepts]: Start accepts. Automaton has 6206 states and 16656 transitions. Word has length 120 [2021-06-12 17:36:39,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:36:39,919 INFO L482 AbstractCegarLoop]: Abstraction has 6206 states and 16656 transitions. [2021-06-12 17:36:39,919 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:39,919 INFO L276 IsEmpty]: Start isEmpty. Operand 6206 states and 16656 transitions. [2021-06-12 17:36:39,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:36:39,923 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:36:39,923 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:36:39,923 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2021-06-12 17:36:39,923 INFO L430 AbstractCegarLoop]: === Iteration 368 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:36:39,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:36:39,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1835663953, now seen corresponding path program 10 times [2021-06-12 17:36:39,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:36:39,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73339065] [2021-06-12 17:36:39,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:36:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:36:41,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:36:41,057 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:36:41,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73339065] [2021-06-12 17:36:41,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73339065] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:36:41,058 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:36:41,058 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:36:41,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378884251] [2021-06-12 17:36:41,058 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:36:41,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:36:41,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:36:41,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:36:41,058 INFO L87 Difference]: Start difference. First operand 6206 states and 16656 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:42,011 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-12 17:36:42,196 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-06-12 17:36:42,576 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-06-12 17:36:42,795 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-06-12 17:36:43,050 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-06-12 17:36:43,374 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-12 17:36:43,842 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 [2021-06-12 17:36:45,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:36:45,649 INFO L93 Difference]: Finished difference Result 7782 states and 20492 transitions. [2021-06-12 17:36:45,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-12 17:36:45,650 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:36:45,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:36:45,656 INFO L225 Difference]: With dead ends: 7782 [2021-06-12 17:36:45,656 INFO L226 Difference]: Without dead ends: 7306 [2021-06-12 17:36:45,656 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 4190.2ms TimeCoverageRelationStatistics Valid=752, Invalid=3804, Unknown=0, NotChecked=0, Total=4556 [2021-06-12 17:36:45,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7306 states. [2021-06-12 17:36:45,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7306 to 6734. [2021-06-12 17:36:45,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6734 states, 6733 states have (on average 2.669835140353483) internal successors, (17976), 6733 states have internal predecessors, (17976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:45,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6734 states to 6734 states and 17976 transitions. [2021-06-12 17:36:45,725 INFO L78 Accepts]: Start accepts. Automaton has 6734 states and 17976 transitions. Word has length 120 [2021-06-12 17:36:45,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:36:45,725 INFO L482 AbstractCegarLoop]: Abstraction has 6734 states and 17976 transitions. [2021-06-12 17:36:45,725 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:45,725 INFO L276 IsEmpty]: Start isEmpty. Operand 6734 states and 17976 transitions. [2021-06-12 17:36:45,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:36:45,730 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:36:45,730 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:36:45,730 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2021-06-12 17:36:45,730 INFO L430 AbstractCegarLoop]: === Iteration 369 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:36:45,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:36:45,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1966530617, now seen corresponding path program 11 times [2021-06-12 17:36:45,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:36:45,731 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807252475] [2021-06-12 17:36:45,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:36:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:36:46,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:36:46,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:36:46,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807252475] [2021-06-12 17:36:46,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807252475] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:36:46,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:36:46,556 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:36:46,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817166696] [2021-06-12 17:36:46,556 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:36:46,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:36:46,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:36:46,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:36:46,557 INFO L87 Difference]: Start difference. First operand 6734 states and 17976 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:47,585 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-06-12 17:36:47,920 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-06-12 17:36:48,100 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-12 17:36:48,305 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-06-12 17:36:48,573 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-06-12 17:36:48,964 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-06-12 17:36:50,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:36:50,737 INFO L93 Difference]: Finished difference Result 7439 states and 19569 transitions. [2021-06-12 17:36:50,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-06-12 17:36:50,738 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:36:50,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:36:50,743 INFO L225 Difference]: With dead ends: 7439 [2021-06-12 17:36:50,743 INFO L226 Difference]: Without dead ends: 7234 [2021-06-12 17:36:50,743 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 3613.5ms TimeCoverageRelationStatistics Valid=758, Invalid=3934, Unknown=0, NotChecked=0, Total=4692 [2021-06-12 17:36:50,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7234 states. [2021-06-12 17:36:50,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7234 to 6662. [2021-06-12 17:36:50,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6662 states, 6661 states have (on average 2.6698693889806338) internal successors, (17784), 6661 states have internal predecessors, (17784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:50,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6662 states to 6662 states and 17784 transitions. [2021-06-12 17:36:50,808 INFO L78 Accepts]: Start accepts. Automaton has 6662 states and 17784 transitions. Word has length 120 [2021-06-12 17:36:50,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:36:50,808 INFO L482 AbstractCegarLoop]: Abstraction has 6662 states and 17784 transitions. [2021-06-12 17:36:50,808 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:50,808 INFO L276 IsEmpty]: Start isEmpty. Operand 6662 states and 17784 transitions. [2021-06-12 17:36:50,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:36:50,813 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:36:50,813 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:36:50,813 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2021-06-12 17:36:50,813 INFO L430 AbstractCegarLoop]: === Iteration 370 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:36:50,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:36:50,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1902221739, now seen corresponding path program 12 times [2021-06-12 17:36:50,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:36:50,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823726082] [2021-06-12 17:36:50,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:36:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:36:51,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:36:51,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:36:51,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823726082] [2021-06-12 17:36:51,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823726082] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:36:51,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:36:51,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:36:52,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652003439] [2021-06-12 17:36:52,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:36:52,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:36:52,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:36:52,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:36:52,000 INFO L87 Difference]: Start difference. First operand 6662 states and 17784 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:52,981 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-12 17:36:53,171 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-06-12 17:36:53,561 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-06-12 17:36:53,784 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-06-12 17:36:54,042 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-06-12 17:36:54,375 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-12 17:36:54,857 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 [2021-06-12 17:36:56,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:36:56,670 INFO L93 Difference]: Finished difference Result 7346 states and 19345 transitions. [2021-06-12 17:36:56,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-12 17:36:56,671 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:36:56,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:36:56,677 INFO L225 Difference]: With dead ends: 7346 [2021-06-12 17:36:56,677 INFO L226 Difference]: Without dead ends: 6801 [2021-06-12 17:36:56,677 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 4249.3ms TimeCoverageRelationStatistics Valid=723, Invalid=3699, Unknown=0, NotChecked=0, Total=4422 [2021-06-12 17:36:56,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6801 states. [2021-06-12 17:36:56,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6801 to 6326. [2021-06-12 17:36:56,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6326 states, 6325 states have (on average 2.6675098814229248) internal successors, (16872), 6325 states have internal predecessors, (16872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:56,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6326 states to 6326 states and 16872 transitions. [2021-06-12 17:36:56,740 INFO L78 Accepts]: Start accepts. Automaton has 6326 states and 16872 transitions. Word has length 120 [2021-06-12 17:36:56,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:36:56,740 INFO L482 AbstractCegarLoop]: Abstraction has 6326 states and 16872 transitions. [2021-06-12 17:36:56,740 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:56,740 INFO L276 IsEmpty]: Start isEmpty. Operand 6326 states and 16872 transitions. [2021-06-12 17:36:56,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:36:56,745 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:36:56,745 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:36:56,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2021-06-12 17:36:56,745 INFO L430 AbstractCegarLoop]: === Iteration 371 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:36:56,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:36:56,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1954382055, now seen corresponding path program 13 times [2021-06-12 17:36:56,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:36:56,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072380813] [2021-06-12 17:36:56,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:36:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:36:57,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:36:57,888 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:36:57,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072380813] [2021-06-12 17:36:57,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072380813] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:36:57,888 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:36:57,888 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:36:57,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902407320] [2021-06-12 17:36:57,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:36:57,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:36:57,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:36:57,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:36:57,889 INFO L87 Difference]: Start difference. First operand 6326 states and 16872 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:36:58,793 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-12 17:36:58,972 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-06-12 17:36:59,335 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2021-06-12 17:36:59,547 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 80 [2021-06-12 17:36:59,794 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2021-06-12 17:37:00,107 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-12 17:37:00,552 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 [2021-06-12 17:37:01,341 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2021-06-12 17:37:01,705 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2021-06-12 17:37:02,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:37:02,379 INFO L93 Difference]: Finished difference Result 6962 states and 18328 transitions. [2021-06-12 17:37:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-12 17:37:02,379 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:37:02,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:37:02,386 INFO L225 Difference]: With dead ends: 6962 [2021-06-12 17:37:02,387 INFO L226 Difference]: Without dead ends: 6608 [2021-06-12 17:37:02,387 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 4194.9ms TimeCoverageRelationStatistics Valid=723, Invalid=3699, Unknown=0, NotChecked=0, Total=4422 [2021-06-12 17:37:02,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6608 states. [2021-06-12 17:37:02,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6608 to 6206. [2021-06-12 17:37:02,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6206 states, 6205 states have (on average 2.6804190169218374) internal successors, (16632), 6205 states have internal predecessors, (16632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:02,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6206 states to 6206 states and 16632 transitions. [2021-06-12 17:37:02,451 INFO L78 Accepts]: Start accepts. Automaton has 6206 states and 16632 transitions. Word has length 120 [2021-06-12 17:37:02,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:37:02,451 INFO L482 AbstractCegarLoop]: Abstraction has 6206 states and 16632 transitions. [2021-06-12 17:37:02,451 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:02,451 INFO L276 IsEmpty]: Start isEmpty. Operand 6206 states and 16632 transitions. [2021-06-12 17:37:02,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:37:02,456 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:37:02,456 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:37:02,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2021-06-12 17:37:02,456 INFO L430 AbstractCegarLoop]: === Iteration 372 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:37:02,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:37:02,456 INFO L82 PathProgramCache]: Analyzing trace with hash 90759333, now seen corresponding path program 14 times [2021-06-12 17:37:02,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:37:02,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528206107] [2021-06-12 17:37:02,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:37:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:37:03,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:37:03,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:37:03,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528206107] [2021-06-12 17:37:03,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528206107] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:37:03,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:37:03,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:37:03,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444946247] [2021-06-12 17:37:03,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:37:03,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:37:03,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:37:03,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:37:03,675 INFO L87 Difference]: Start difference. First operand 6206 states and 16632 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:04,606 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-12 17:37:04,786 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-06-12 17:37:05,161 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2021-06-12 17:37:05,376 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 80 [2021-06-12 17:37:05,632 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2021-06-12 17:37:05,971 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-12 17:37:06,436 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 [2021-06-12 17:37:06,924 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 93 [2021-06-12 17:37:07,210 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 97 [2021-06-12 17:37:08,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:37:08,566 INFO L93 Difference]: Finished difference Result 6747 states and 17867 transitions. [2021-06-12 17:37:08,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-12 17:37:08,566 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:37:08,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:37:08,572 INFO L225 Difference]: With dead ends: 6747 [2021-06-12 17:37:08,572 INFO L226 Difference]: Without dead ends: 6534 [2021-06-12 17:37:08,573 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 4611.2ms TimeCoverageRelationStatistics Valid=786, Invalid=3770, Unknown=0, NotChecked=0, Total=4556 [2021-06-12 17:37:08,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6534 states. [2021-06-12 17:37:08,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6534 to 6210. [2021-06-12 17:37:08,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6210 states, 6209 states have (on average 2.679658560154614) internal successors, (16638), 6209 states have internal predecessors, (16638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:08,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6210 states to 6210 states and 16638 transitions. [2021-06-12 17:37:08,662 INFO L78 Accepts]: Start accepts. Automaton has 6210 states and 16638 transitions. Word has length 120 [2021-06-12 17:37:08,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:37:08,662 INFO L482 AbstractCegarLoop]: Abstraction has 6210 states and 16638 transitions. [2021-06-12 17:37:08,662 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:08,662 INFO L276 IsEmpty]: Start isEmpty. Operand 6210 states and 16638 transitions. [2021-06-12 17:37:08,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:37:08,667 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:37:08,667 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:37:08,667 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2021-06-12 17:37:08,667 INFO L430 AbstractCegarLoop]: === Iteration 373 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:37:08,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:37:08,667 INFO L82 PathProgramCache]: Analyzing trace with hash 187392421, now seen corresponding path program 15 times [2021-06-12 17:37:08,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:37:08,667 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900949012] [2021-06-12 17:37:08,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:37:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:37:09,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:37:09,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:37:09,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900949012] [2021-06-12 17:37:09,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900949012] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:37:09,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:37:09,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:37:09,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471483890] [2021-06-12 17:37:09,495 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:37:09,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:37:09,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:37:09,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:37:09,495 INFO L87 Difference]: Start difference. First operand 6210 states and 16638 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:10,517 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-12 17:37:10,860 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-06-12 17:37:11,041 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-06-12 17:37:11,248 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-06-12 17:37:11,531 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-06-12 17:37:11,934 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 86 [2021-06-12 17:37:12,363 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 89 [2021-06-12 17:37:13,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:37:13,727 INFO L93 Difference]: Finished difference Result 6760 states and 17898 transitions. [2021-06-12 17:37:13,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-12 17:37:13,727 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:37:13,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:37:13,733 INFO L225 Difference]: With dead ends: 6760 [2021-06-12 17:37:13,733 INFO L226 Difference]: Without dead ends: 6498 [2021-06-12 17:37:13,734 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 3649.7ms TimeCoverageRelationStatistics Valid=741, Invalid=3681, Unknown=0, NotChecked=0, Total=4422 [2021-06-12 17:37:13,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6498 states. [2021-06-12 17:37:13,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6498 to 6182. [2021-06-12 17:37:13,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6182 states, 6181 states have (on average 2.683060993366769) internal successors, (16584), 6181 states have internal predecessors, (16584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:13,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6182 states to 6182 states and 16584 transitions. [2021-06-12 17:37:13,795 INFO L78 Accepts]: Start accepts. Automaton has 6182 states and 16584 transitions. Word has length 120 [2021-06-12 17:37:13,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:37:13,795 INFO L482 AbstractCegarLoop]: Abstraction has 6182 states and 16584 transitions. [2021-06-12 17:37:13,795 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:13,795 INFO L276 IsEmpty]: Start isEmpty. Operand 6182 states and 16584 transitions. [2021-06-12 17:37:13,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:37:13,800 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:37:13,800 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:37:13,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2021-06-12 17:37:13,800 INFO L430 AbstractCegarLoop]: === Iteration 374 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:37:13,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:37:13,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1582854969, now seen corresponding path program 16 times [2021-06-12 17:37:13,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:37:13,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958473277] [2021-06-12 17:37:13,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:37:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:37:15,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:37:15,013 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:37:15,013 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958473277] [2021-06-12 17:37:15,013 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958473277] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:37:15,013 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:37:15,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:37:15,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741976727] [2021-06-12 17:37:15,013 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:37:15,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:37:15,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:37:15,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:37:15,014 INFO L87 Difference]: Start difference. First operand 6182 states and 16584 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:15,915 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-12 17:37:16,092 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-06-12 17:37:16,459 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2021-06-12 17:37:16,683 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 80 [2021-06-12 17:37:16,931 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2021-06-12 17:37:17,252 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-12 17:37:17,909 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 91 [2021-06-12 17:37:18,200 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 95 [2021-06-12 17:37:18,558 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 97 [2021-06-12 17:37:19,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:37:19,616 INFO L93 Difference]: Finished difference Result 6751 states and 17871 transitions. [2021-06-12 17:37:19,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-12 17:37:19,616 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:37:19,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:37:19,621 INFO L225 Difference]: With dead ends: 6751 [2021-06-12 17:37:19,621 INFO L226 Difference]: Without dead ends: 6528 [2021-06-12 17:37:19,621 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 4292.8ms TimeCoverageRelationStatistics Valid=724, Invalid=3436, Unknown=0, NotChecked=0, Total=4160 [2021-06-12 17:37:19,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6528 states. [2021-06-12 17:37:19,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6528 to 6195. [2021-06-12 17:37:19,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6195 states, 6194 states have (on average 2.681304488214401) internal successors, (16608), 6194 states have internal predecessors, (16608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:19,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6195 states to 6195 states and 16608 transitions. [2021-06-12 17:37:19,678 INFO L78 Accepts]: Start accepts. Automaton has 6195 states and 16608 transitions. Word has length 120 [2021-06-12 17:37:19,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:37:19,678 INFO L482 AbstractCegarLoop]: Abstraction has 6195 states and 16608 transitions. [2021-06-12 17:37:19,678 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:19,678 INFO L276 IsEmpty]: Start isEmpty. Operand 6195 states and 16608 transitions. [2021-06-12 17:37:19,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:37:19,683 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:37:19,683 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:37:19,683 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2021-06-12 17:37:19,683 INFO L430 AbstractCegarLoop]: === Iteration 375 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:37:19,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:37:19,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1930991739, now seen corresponding path program 17 times [2021-06-12 17:37:19,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:37:19,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418921212] [2021-06-12 17:37:19,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:37:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:37:20,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:37:20,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:37:20,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418921212] [2021-06-12 17:37:20,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418921212] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:37:20,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:37:20,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:37:20,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609321202] [2021-06-12 17:37:20,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:37:20,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:37:20,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:37:20,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:37:20,868 INFO L87 Difference]: Start difference. First operand 6195 states and 16608 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:21,758 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-06-12 17:37:21,953 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-06-12 17:37:22,315 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2021-06-12 17:37:22,527 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 80 [2021-06-12 17:37:22,774 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2021-06-12 17:37:23,088 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-06-12 17:37:23,719 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 91 [2021-06-12 17:37:24,011 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 93 [2021-06-12 17:37:24,315 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 97 [2021-06-12 17:37:24,578 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-06-12 17:37:25,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:37:25,588 INFO L93 Difference]: Finished difference Result 6734 states and 17837 transitions. [2021-06-12 17:37:25,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-12 17:37:25,588 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:37:25,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:37:25,592 INFO L225 Difference]: With dead ends: 6734 [2021-06-12 17:37:25,593 INFO L226 Difference]: Without dead ends: 6521 [2021-06-12 17:37:25,593 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 4524.1ms TimeCoverageRelationStatistics Valid=762, Invalid=3660, Unknown=0, NotChecked=0, Total=4422 [2021-06-12 17:37:25,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6521 states. [2021-06-12 17:37:25,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6521 to 6199. [2021-06-12 17:37:25,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6199 states, 6198 states have (on average 2.68054211035818) internal successors, (16614), 6198 states have internal predecessors, (16614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:25,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6199 states to 6199 states and 16614 transitions. [2021-06-12 17:37:25,651 INFO L78 Accepts]: Start accepts. Automaton has 6199 states and 16614 transitions. Word has length 120 [2021-06-12 17:37:25,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:37:25,651 INFO L482 AbstractCegarLoop]: Abstraction has 6199 states and 16614 transitions. [2021-06-12 17:37:25,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:25,651 INFO L276 IsEmpty]: Start isEmpty. Operand 6199 states and 16614 transitions. [2021-06-12 17:37:25,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:37:25,656 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:37:25,656 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:37:25,656 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2021-06-12 17:37:25,656 INFO L430 AbstractCegarLoop]: === Iteration 376 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:37:25,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:37:25,656 INFO L82 PathProgramCache]: Analyzing trace with hash 116921113, now seen corresponding path program 18 times [2021-06-12 17:37:25,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:37:25,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718028247] [2021-06-12 17:37:25,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:37:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:37:26,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:37:26,483 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:37:26,483 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718028247] [2021-06-12 17:37:26,483 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718028247] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:37:26,483 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:37:26,483 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:37:26,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552789452] [2021-06-12 17:37:26,483 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:37:26,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:37:26,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:37:26,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:37:26,484 INFO L87 Difference]: Start difference. First operand 6199 states and 16614 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:27,510 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-06-12 17:37:27,847 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-06-12 17:37:28,028 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-06-12 17:37:28,235 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-06-12 17:37:28,502 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-06-12 17:37:29,082 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 87 [2021-06-12 17:37:29,325 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-06-12 17:37:30,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:37:30,576 INFO L93 Difference]: Finished difference Result 6747 states and 17868 transitions. [2021-06-12 17:37:30,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-12 17:37:30,576 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:37:30,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:37:30,580 INFO L225 Difference]: With dead ends: 6747 [2021-06-12 17:37:30,580 INFO L226 Difference]: Without dead ends: 6427 [2021-06-12 17:37:30,581 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 3561.4ms TimeCoverageRelationStatistics Valid=720, Invalid=3570, Unknown=0, NotChecked=0, Total=4290 [2021-06-12 17:37:30,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6427 states. [2021-06-12 17:37:30,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6427 to 6113. [2021-06-12 17:37:30,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6113 states, 6112 states have (on average 2.6788285340314135) internal successors, (16373), 6112 states have internal predecessors, (16373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:30,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6113 states to 6113 states and 16373 transitions. [2021-06-12 17:37:30,638 INFO L78 Accepts]: Start accepts. Automaton has 6113 states and 16373 transitions. Word has length 120 [2021-06-12 17:37:30,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:37:30,638 INFO L482 AbstractCegarLoop]: Abstraction has 6113 states and 16373 transitions. [2021-06-12 17:37:30,638 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:30,638 INFO L276 IsEmpty]: Start isEmpty. Operand 6113 states and 16373 transitions. [2021-06-12 17:37:30,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:37:30,642 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:37:30,642 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:37:30,642 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2021-06-12 17:37:30,642 INFO L430 AbstractCegarLoop]: === Iteration 377 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:37:30,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:37:30,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1833061803, now seen corresponding path program 19 times [2021-06-12 17:37:30,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:37:30,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142680148] [2021-06-12 17:37:30,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:37:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:37:31,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:37:31,461 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:37:31,461 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142680148] [2021-06-12 17:37:31,461 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142680148] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:37:31,461 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:37:31,461 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:37:31,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467750993] [2021-06-12 17:37:31,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:37:31,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:37:31,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:37:31,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:37:31,462 INFO L87 Difference]: Start difference. First operand 6113 states and 16373 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:32,482 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-06-12 17:37:32,855 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-06-12 17:37:33,038 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-12 17:37:33,248 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-06-12 17:37:33,620 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 81 [2021-06-12 17:37:33,977 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-06-12 17:37:34,250 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-06-12 17:37:35,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:37:35,975 INFO L93 Difference]: Finished difference Result 7707 states and 20277 transitions. [2021-06-12 17:37:35,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-06-12 17:37:35,976 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-06-12 17:37:35,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:37:35,981 INFO L225 Difference]: With dead ends: 7707 [2021-06-12 17:37:35,981 INFO L226 Difference]: Without dead ends: 7231 [2021-06-12 17:37:35,982 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 812 ImplicationChecksByTransitivity, 3840.5ms TimeCoverageRelationStatistics Valid=816, Invalid=4014, Unknown=0, NotChecked=0, Total=4830 [2021-06-12 17:37:35,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7231 states. [2021-06-12 17:37:36,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7231 to 6617. [2021-06-12 17:37:36,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6617 states, 6616 states have (on average 2.663391777509069) internal successors, (17621), 6616 states have internal predecessors, (17621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:36,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6617 states to 6617 states and 17621 transitions. [2021-06-12 17:37:36,046 INFO L78 Accepts]: Start accepts. Automaton has 6617 states and 17621 transitions. Word has length 120 [2021-06-12 17:37:36,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:37:36,046 INFO L482 AbstractCegarLoop]: Abstraction has 6617 states and 17621 transitions. [2021-06-12 17:37:36,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:36,046 INFO L276 IsEmpty]: Start isEmpty. Operand 6617 states and 17621 transitions. [2021-06-12 17:37:36,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-06-12 17:37:36,051 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:37:36,051 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:37:36,051 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2021-06-12 17:37:36,051 INFO L430 AbstractCegarLoop]: === Iteration 378 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:37:36,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:37:36,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1963928467, now seen corresponding path program 20 times [2021-06-12 17:37:36,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:37:36,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955748674] [2021-06-12 17:37:36,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:37:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:37:37,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:37:37,201 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:37:37,201 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955748674] [2021-06-12 17:37:37,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955748674] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:37:37,202 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:37:37,202 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-12 17:37:37,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689119337] [2021-06-12 17:37:37,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-12 17:37:37,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:37:37,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-12 17:37:37,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-06-12 17:37:37,202 INFO L87 Difference]: Start difference. First operand 6617 states and 17621 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:37:37,978 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-06-12 17:37:38,122 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-06-12 17:37:38,300 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 70 [2021-06-12 17:37:38,678 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 74 [2021-06-12 17:37:38,890 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 79 [2021-06-12 17:37:39,137 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 83 [2021-06-12 17:37:39,558 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 85 [2021-06-12 17:37:39,980 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 89 Received shutdown request... [2021-06-12 17:37:40,272 WARN L222 SmtUtils]: Removed 13 from assertion stack [2021-06-12 17:37:40,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-12 17:37:40,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2021-06-12 17:37:40,273 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-12 17:37:40,279 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-12 17:37:40,280 WARN L196 ceAbstractionStarter]: Timeout [2021-06-12 17:37:40,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.06 05:37:40 BasicIcfg [2021-06-12 17:37:40,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-12 17:37:40,281 INFO L168 Benchmark]: Toolchain (without parser) took 726957.91 ms. Allocated memory was 251.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 213.1 MB in the beginning and 523.9 MB in the end (delta: -310.8 MB). Peak memory consumption was 894.9 MB. Max. memory is 8.0 GB. [2021-06-12 17:37:40,281 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 251.7 MB. Free memory is still 232.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 17:37:40,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.46 ms. Allocated memory was 251.7 MB in the beginning and 343.9 MB in the end (delta: 92.3 MB). Free memory was 212.9 MB in the beginning and 291.6 MB in the end (delta: -78.6 MB). Peak memory consumption was 79.7 MB. Max. memory is 8.0 GB. [2021-06-12 17:37:40,281 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.41 ms. Allocated memory is still 343.9 MB. Free memory was 291.6 MB in the beginning and 288.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:37:40,281 INFO L168 Benchmark]: Boogie Preprocessor took 23.61 ms. Allocated memory is still 343.9 MB. Free memory was 288.4 MB in the beginning and 285.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:37:40,281 INFO L168 Benchmark]: RCFGBuilder took 531.04 ms. Allocated memory is still 343.9 MB. Free memory was 285.3 MB in the beginning and 237.0 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. [2021-06-12 17:37:40,281 INFO L168 Benchmark]: TraceAbstraction took 725647.38 ms. Allocated memory was 343.9 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 236.5 MB in the beginning and 523.9 MB in the end (delta: -287.4 MB). Peak memory consumption was 825.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:37:40,281 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 251.7 MB. Free memory is still 232.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 712.46 ms. Allocated memory was 251.7 MB in the beginning and 343.9 MB in the end (delta: 92.3 MB). Free memory was 212.9 MB in the beginning and 291.6 MB in the end (delta: -78.6 MB). Peak memory consumption was 79.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 38.41 ms. Allocated memory is still 343.9 MB. Free memory was 291.6 MB in the beginning and 288.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 23.61 ms. Allocated memory is still 343.9 MB. Free memory was 288.4 MB in the beginning and 285.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 531.04 ms. Allocated memory is still 343.9 MB. Free memory was 285.3 MB in the beginning and 237.0 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 725647.38 ms. Allocated memory was 343.9 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 236.5 MB in the beginning and 523.9 MB in the end (delta: -287.4 MB). Peak memory consumption was 825.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (6617states) and FLOYD_HOARE automaton (currently 22 states, 35 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 153 for 205ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (6617states) and FLOYD_HOARE automaton (currently 22 states, 35 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 153 for 205ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (6617states) and FLOYD_HOARE automaton (currently 22 states, 35 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 153 for 205ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (6617states) and FLOYD_HOARE automaton (currently 22 states, 35 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 153 for 205ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (6617states) and FLOYD_HOARE automaton (currently 22 states, 35 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 153 for 205ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (6617states) and FLOYD_HOARE automaton (currently 22 states, 35 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 153 for 205ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 4 procedures, 178 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 725528.5ms, OverallIterations: 378, TraceHistogramMax: 1, EmptinessCheckTime: 2696.0ms, AutomataDifference: 543172.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 238.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 142629 SDtfs, 449808 SDslu, 836686 SDs, 0 SdLazy, 247381 SolverSat, 5196 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 110012.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14464 GetRequests, 1479 SyntacticMatches, 746 SemanticMatches, 12238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42423 ImplicationChecksByTransitivity, 476682.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10749occurred in iteration=67, InterpolantAutomatonStates: 7046, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 55431.6ms AutomataMinimizationTime, 377 MinimizatonAttempts, 3427794 StatesRemovedByMinimization, 376 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 500.3ms SsaConstructionTime, 3624.5ms SatisfiabilityAnalysisTime, 117500.5ms InterpolantComputationTime, 42926 NumberOfCodeBlocks, 42926 NumberOfCodeBlocksAsserted, 378 NumberOfCheckSat, 42548 ConstructedInterpolants, 0 QuantifiedInterpolants, 316938 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 378 InterpolantComputations, 378 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