/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-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/singleton.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 14:45:02,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 14:45:02,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 14:45:02,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 14:45:02,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 14:45:02,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 14:45:02,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 14:45:02,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 14:45:02,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 14:45:02,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 14:45:02,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 14:45:02,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 14:45:02,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 14:45:02,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 14:45:02,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 14:45:02,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 14:45:02,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 14:45:02,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 14:45:02,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 14:45:02,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 14:45:02,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 14:45:02,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 14:45:02,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 14:45:02,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 14:45:02,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-16 14:45:02,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-16 14:45:02,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-16 14:45:02,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-16 14:45:02,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-16 14:45:02,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-16 14:45:02,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 14:45:02,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 14:45:02,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 14:45:02,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 14:45:02,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 14:45:02,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 14:45:02,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 14:45:02,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 14:45:02,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 14:45:02,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 14:45:02,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 14:45:02,446 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-Delay.epf [2021-06-16 14:45:02,489 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 14:45:02,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 14:45:02,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 14:45:02,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 14:45:02,492 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 14:45:02,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 14:45:02,493 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 14:45:02,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 14:45:02,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 14:45:02,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 14:45:02,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 14:45:02,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 14:45:02,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 14:45:02,495 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 14:45:02,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 14:45:02,495 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 14:45:02,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 14:45:02,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 14:45:02,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 14:45:02,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 14:45:02,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 14:45:02,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 14:45:02,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 14:45:02,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 14:45:02,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 14:45:02,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 14:45:02,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 14:45:02,497 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 14:45:02,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 14:45:02,497 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 14:45:02,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 14:45:02,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 14:45:02,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 14:45:02,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 14:45:02,840 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 14:45:02,841 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 14:45:02,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.i [2021-06-16 14:45:02,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ee69190b/ba7ccc49a36a4a3d9612e4e96a98061f/FLAG9b68867ae [2021-06-16 14:45:03,477 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 14:45:03,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i [2021-06-16 14:45:03,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ee69190b/ba7ccc49a36a4a3d9612e4e96a98061f/FLAG9b68867ae [2021-06-16 14:45:03,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ee69190b/ba7ccc49a36a4a3d9612e4e96a98061f [2021-06-16 14:45:03,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 14:45:03,780 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 14:45:03,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 14:45:03,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 14:45:03,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 14:45:03,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 02:45:03" (1/1) ... [2021-06-16 14:45:03,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da30adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:45:03, skipping insertion in model container [2021-06-16 14:45:03,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 02:45:03" (1/1) ... [2021-06-16 14:45:03,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 14:45:03,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 14:45:04,032 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-16 14:45:04,173 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i[55547,55560] [2021-06-16 14:45:04,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 14:45:04,195 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 14:45:04,207 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-16 14:45:04,223 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i[55547,55560] [2021-06-16 14:45:04,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 14:45:04,384 INFO L208 MainTranslator]: Completed translation [2021-06-16 14:45:04,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:45:04 WrapperNode [2021-06-16 14:45:04,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 14:45:04,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 14:45:04,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 14:45:04,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 14:45:04,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:45:04" (1/1) ... [2021-06-16 14:45:04,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:45:04" (1/1) ... [2021-06-16 14:45:04,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 14:45:04,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 14:45:04,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 14:45:04,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 14:45:04,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:45:04" (1/1) ... [2021-06-16 14:45:04,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:45:04" (1/1) ... [2021-06-16 14:45:04,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:45:04" (1/1) ... [2021-06-16 14:45:04,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:45:04" (1/1) ... [2021-06-16 14:45:04,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:45:04" (1/1) ... [2021-06-16 14:45:04,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:45:04" (1/1) ... [2021-06-16 14:45:04,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:45:04" (1/1) ... [2021-06-16 14:45:04,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 14:45:04,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 14:45:04,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 14:45:04,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 14:45:04,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:45:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 14:45:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-16 14:45:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 14:45:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 14:45:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-16 14:45:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-16 14:45:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2021-06-16 14:45:04,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2021-06-16 14:45:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-16 14:45:04,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-16 14:45:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-16 14:45:04,546 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-16 14:45:04,546 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-16 14:45:04,546 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-16 14:45:04,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 14:45:04,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-06-16 14:45:04,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-16 14:45:04,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 14:45:04,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 14:45:04,547 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 14:45:05,064 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 14:45:05,064 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-06-16 14:45:05,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 02:45:05 BoogieIcfgContainer [2021-06-16 14:45:05,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 14:45:05,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 14:45:05,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 14:45:05,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 14:45:05,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 02:45:03" (1/3) ... [2021-06-16 14:45:05,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6912af22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 02:45:05, skipping insertion in model container [2021-06-16 14:45:05,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 02:45:04" (2/3) ... [2021-06-16 14:45:05,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6912af22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 02:45:05, skipping insertion in model container [2021-06-16 14:45:05,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 02:45:05" (3/3) ... [2021-06-16 14:45:05,073 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton.i [2021-06-16 14:45:05,077 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 14:45:05,078 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 14:45:05,078 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 14:45:05,078 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 14:45:05,129 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,129 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,129 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,130 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,130 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,130 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,131 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,131 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,131 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,131 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,131 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,131 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,133 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,133 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,133 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,133 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,133 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,133 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,134 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,134 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,134 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,134 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,134 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,134 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,135 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,135 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,135 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,136 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,136 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,136 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,137 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,137 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,137 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,137 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,137 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,138 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,138 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,138 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,138 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,138 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,139 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,139 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,139 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,139 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,139 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,139 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,140 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,140 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,140 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,140 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,141 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,141 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,141 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,141 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,142 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,142 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,142 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,142 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,142 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,142 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,142 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,142 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,143 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,143 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,143 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,143 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,143 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,143 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,144 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,144 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,144 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,144 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,144 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,144 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,145 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,145 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,145 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,145 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,145 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,145 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,146 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,146 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,146 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,146 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,147 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,147 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,147 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,147 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,147 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,147 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,148 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,149 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,151 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,151 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,152 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,152 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,157 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,157 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,157 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,157 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,157 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,158 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,160 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,161 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,161 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,161 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,161 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,161 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,161 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,161 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,162 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,162 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,162 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,162 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,162 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,162 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,162 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,162 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,162 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,163 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,163 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,163 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,163 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,163 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,163 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,163 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,163 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,163 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,164 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,164 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,164 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,164 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,164 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,164 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,164 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,164 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,164 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,165 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,165 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,165 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,165 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,165 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,165 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,165 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,165 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,166 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,166 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,166 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,166 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,166 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,166 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,166 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,166 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,166 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,168 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,168 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,168 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,168 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,168 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,168 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,168 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,168 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,168 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,169 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,169 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,169 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,169 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,169 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,169 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,169 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,169 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,170 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,170 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,170 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,170 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,170 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,170 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,170 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,170 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,171 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,171 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,171 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,171 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,171 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,171 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,171 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,171 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,172 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,172 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,172 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,172 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,172 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,172 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,172 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,172 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,172 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,173 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,173 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,173 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,173 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,173 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,173 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,173 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,173 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,174 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,174 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,174 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,174 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,174 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,174 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,174 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,175 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,175 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,175 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,175 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,175 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,175 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,175 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,175 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,176 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,176 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,176 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,178 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,178 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,178 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,179 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,183 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,183 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,183 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,183 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,184 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,184 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,185 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,185 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,186 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,186 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,186 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,186 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,186 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,186 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,190 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,191 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,192 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,192 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,192 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,192 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,192 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,195 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,195 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,195 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,196 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,197 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,197 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,197 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,197 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,197 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,198 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,202 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,202 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,202 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,202 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,206 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,206 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,206 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,207 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,209 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,210 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,210 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,210 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,214 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,214 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,214 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,214 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 14:45:05,414 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2021-06-16 14:45:05,433 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-16 14:45:05,448 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 14:45:05,448 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 14:45:05,449 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 14:45:05,449 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 14:45:05,449 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 14:45:05,449 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 14:45:05,449 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 14:45:05,449 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread0======== [2021-06-16 14:45:14,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 70531 states, 69523 states have (on average 2.6579549213929203) internal successors, (184789), 70530 states have internal predecessors, (184789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:15,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-16 14:45:15,246 INFO L301 ceAbstractionStarter]: Result for error location thread0 was SAFE (1/3) [2021-06-16 14:45:15,248 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-16 14:45:15,375 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 14:45:15,375 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 14:45:15,376 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 14:45:15,376 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 14:45:15,376 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 14:45:15,376 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 14:45:15,376 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 14:45:15,376 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 14:45:23,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 70531 states, 69523 states have (on average 2.6579549213929203) internal successors, (184789), 70530 states have internal predecessors, (184789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:23,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-16 14:45:23,450 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:23,451 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:45:23,452 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:23,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:23,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1368208230, now seen corresponding path program 1 times [2021-06-16 14:45:23,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:23,465 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325166847] [2021-06-16 14:45:23,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:23,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:23,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:23,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:23,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 14:45:23,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:23,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:45:23,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:23,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:45:23,888 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:45:23,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:45:23,940 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-06-16 14:45:23,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-06-16 14:45:24,021 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:45:24,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-06-16 14:45:24,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:24,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:24,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:24,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:24,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325166847] [2021-06-16 14:45:24,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325166847] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:24,095 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:24,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-16 14:45:24,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581569351] [2021-06-16 14:45:24,098 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 14:45:24,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:24,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 14:45:24,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-16 14:45:24,196 INFO L87 Difference]: Start difference. First operand has 70531 states, 69523 states have (on average 2.6579549213929203) internal successors, (184789), 70530 states have internal predecessors, (184789), 0 states have call successors, (0), 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 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:25,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:45:25,366 INFO L93 Difference]: Finished difference Result 76011 states and 193419 transitions. [2021-06-16 14:45:25,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 14:45:25,368 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-16 14:45:25,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:45:25,620 INFO L225 Difference]: With dead ends: 76011 [2021-06-16 14:45:25,621 INFO L226 Difference]: Without dead ends: 42425 [2021-06-16 14:45:25,622 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 252.4ms TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-16 14:45:26,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42425 states. [2021-06-16 14:45:27,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42425 to 33978. [2021-06-16 14:45:27,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33978 states, 33853 states have (on average 2.5370868165302927) internal successors, (85888), 33977 states have internal predecessors, (85888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:27,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33978 states to 33978 states and 85888 transitions. [2021-06-16 14:45:27,217 INFO L78 Accepts]: Start accepts. Automaton has 33978 states and 85888 transitions. Word has length 41 [2021-06-16 14:45:27,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:45:27,218 INFO L482 AbstractCegarLoop]: Abstraction has 33978 states and 85888 transitions. [2021-06-16 14:45:27,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:27,218 INFO L276 IsEmpty]: Start isEmpty. Operand 33978 states and 85888 transitions. [2021-06-16 14:45:27,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-16 14:45:27,222 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:27,222 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:45:27,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 14:45:27,223 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:27,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:27,223 INFO L82 PathProgramCache]: Analyzing trace with hash 70529286, now seen corresponding path program 2 times [2021-06-16 14:45:27,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:27,224 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945047806] [2021-06-16 14:45:27,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:27,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:27,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:27,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:27,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:45:27,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:27,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:45:27,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:27,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:45:27,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:27,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:45:27,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:27,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:45:27,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:27,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:45:27,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:27,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:45:27,450 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:45:27,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:45:27,510 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:45:27,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:45:27,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:27,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:27,571 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:27,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945047806] [2021-06-16 14:45:27,572 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945047806] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:27,572 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:27,572 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-16 14:45:27,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134967641] [2021-06-16 14:45:27,573 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-16 14:45:27,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:27,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-16 14:45:27,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-06-16 14:45:27,574 INFO L87 Difference]: Start difference. First operand 33978 states and 85888 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:28,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:45:28,496 INFO L93 Difference]: Finished difference Result 42393 states and 106197 transitions. [2021-06-16 14:45:28,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 14:45:28,497 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-16 14:45:28,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:45:28,608 INFO L225 Difference]: With dead ends: 42393 [2021-06-16 14:45:28,608 INFO L226 Difference]: Without dead ends: 42378 [2021-06-16 14:45:28,609 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 319.7ms TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2021-06-16 14:45:29,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42378 states. [2021-06-16 14:45:29,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42378 to 33921. [2021-06-16 14:45:29,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33921 states, 33800 states have (on average 2.539230769230769) internal successors, (85826), 33920 states have internal predecessors, (85826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:29,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33921 states to 33921 states and 85826 transitions. [2021-06-16 14:45:29,859 INFO L78 Accepts]: Start accepts. Automaton has 33921 states and 85826 transitions. Word has length 41 [2021-06-16 14:45:29,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:45:29,860 INFO L482 AbstractCegarLoop]: Abstraction has 33921 states and 85826 transitions. [2021-06-16 14:45:29,860 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:29,860 INFO L276 IsEmpty]: Start isEmpty. Operand 33921 states and 85826 transitions. [2021-06-16 14:45:29,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-16 14:45:29,863 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:29,863 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:45:29,864 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 14:45:29,864 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:29,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:29,865 INFO L82 PathProgramCache]: Analyzing trace with hash 388415283, now seen corresponding path program 1 times [2021-06-16 14:45:29,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:29,865 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639805863] [2021-06-16 14:45:29,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:29,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:29,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:29,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:29,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 14:45:29,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:29,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 14:45:29,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:29,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:45:29,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:29,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:45:29,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:29,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:29,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:29,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:29,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639805863] [2021-06-16 14:45:29,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639805863] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:29,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:29,968 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 14:45:29,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902807597] [2021-06-16 14:45:29,969 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 14:45:29,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:29,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 14:45:29,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-16 14:45:29,971 INFO L87 Difference]: Start difference. First operand 33921 states and 85826 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:30,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:45:30,630 INFO L93 Difference]: Finished difference Result 75733 states and 198026 transitions. [2021-06-16 14:45:30,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 14:45:30,631 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-16 14:45:30,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:45:30,730 INFO L225 Difference]: With dead ends: 75733 [2021-06-16 14:45:30,730 INFO L226 Difference]: Without dead ends: 42067 [2021-06-16 14:45:30,731 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 48.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-16 14:45:30,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42067 states. [2021-06-16 14:45:31,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42067 to 29515. [2021-06-16 14:45:31,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29515 states, 29419 states have (on average 2.548625038240593) internal successors, (74978), 29514 states have internal predecessors, (74978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:31,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29515 states to 29515 states and 74978 transitions. [2021-06-16 14:45:31,841 INFO L78 Accepts]: Start accepts. Automaton has 29515 states and 74978 transitions. Word has length 54 [2021-06-16 14:45:31,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:45:31,843 INFO L482 AbstractCegarLoop]: Abstraction has 29515 states and 74978 transitions. [2021-06-16 14:45:31,843 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:31,860 INFO L276 IsEmpty]: Start isEmpty. Operand 29515 states and 74978 transitions. [2021-06-16 14:45:31,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-16 14:45:31,861 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:31,862 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] [2021-06-16 14:45:31,862 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 14:45:31,862 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:31,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:31,862 INFO L82 PathProgramCache]: Analyzing trace with hash -173480686, now seen corresponding path program 1 times [2021-06-16 14:45:31,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:31,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599769526] [2021-06-16 14:45:31,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:31,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:31,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:31,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:31,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 14:45:31,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:31,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:45:32,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:32,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:45:32,012 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:45:32,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:45:32,034 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:45:32,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:45:32,061 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-06-16 14:45:32,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-06-16 14:45:32,117 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:45:32,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-06-16 14:45:32,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:32,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:32,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:32,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599769526] [2021-06-16 14:45:32,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599769526] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:32,178 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:32,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 14:45:32,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642907891] [2021-06-16 14:45:32,178 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-16 14:45:32,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:32,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-16 14:45:32,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-06-16 14:45:32,179 INFO L87 Difference]: Start difference. First operand 29515 states and 74978 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:32,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:45:32,779 INFO L93 Difference]: Finished difference Result 36310 states and 90077 transitions. [2021-06-16 14:45:32,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-16 14:45:32,779 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-16 14:45:32,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:45:33,006 INFO L225 Difference]: With dead ends: 36310 [2021-06-16 14:45:33,006 INFO L226 Difference]: Without dead ends: 36136 [2021-06-16 14:45:33,006 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 271.0ms TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-06-16 14:45:33,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36136 states. [2021-06-16 14:45:33,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36136 to 31893. [2021-06-16 14:45:33,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31893 states, 31797 states have (on average 2.572538289775765) internal successors, (81799), 31892 states have internal predecessors, (81799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:33,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31893 states to 31893 states and 81799 transitions. [2021-06-16 14:45:33,818 INFO L78 Accepts]: Start accepts. Automaton has 31893 states and 81799 transitions. Word has length 59 [2021-06-16 14:45:33,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:45:33,818 INFO L482 AbstractCegarLoop]: Abstraction has 31893 states and 81799 transitions. [2021-06-16 14:45:33,818 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:33,818 INFO L276 IsEmpty]: Start isEmpty. Operand 31893 states and 81799 transitions. [2021-06-16 14:45:33,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-16 14:45:33,819 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:33,820 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] [2021-06-16 14:45:33,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-16 14:45:33,820 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:33,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:33,820 INFO L82 PathProgramCache]: Analyzing trace with hash 255493758, now seen corresponding path program 2 times [2021-06-16 14:45:33,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:33,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782183439] [2021-06-16 14:45:33,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:33,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:33,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:33,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:33,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:45:33,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:33,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:45:33,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:33,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:45:33,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:33,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:45:33,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:33,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:45:33,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:33,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:45:33,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:33,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:45:33,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:33,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:45:33,964 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:45:33,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:45:34,002 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:45:34,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:45:34,060 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:45:34,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:45:34,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:34,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:34,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:34,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:34,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782183439] [2021-06-16 14:45:34,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782183439] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:34,122 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:34,122 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-16 14:45:34,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514828950] [2021-06-16 14:45:34,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-16 14:45:34,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:34,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-16 14:45:34,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-06-16 14:45:34,124 INFO L87 Difference]: Start difference. First operand 31893 states and 81799 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:35,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:45:35,013 INFO L93 Difference]: Finished difference Result 38674 states and 96883 transitions. [2021-06-16 14:45:35,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-16 14:45:35,013 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-16 14:45:35,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:45:35,105 INFO L225 Difference]: With dead ends: 38674 [2021-06-16 14:45:35,105 INFO L226 Difference]: Without dead ends: 38500 [2021-06-16 14:45:35,106 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 378.2ms TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2021-06-16 14:45:35,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38500 states. [2021-06-16 14:45:35,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38500 to 31879. [2021-06-16 14:45:35,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31879 states, 31783 states have (on average 2.5731995091715696) internal successors, (81784), 31878 states have internal predecessors, (81784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:35,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31879 states to 31879 states and 81784 transitions. [2021-06-16 14:45:35,941 INFO L78 Accepts]: Start accepts. Automaton has 31879 states and 81784 transitions. Word has length 59 [2021-06-16 14:45:35,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:45:35,942 INFO L482 AbstractCegarLoop]: Abstraction has 31879 states and 81784 transitions. [2021-06-16 14:45:35,942 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:35,942 INFO L276 IsEmpty]: Start isEmpty. Operand 31879 states and 81784 transitions. [2021-06-16 14:45:35,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-16 14:45:35,943 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:35,943 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] [2021-06-16 14:45:35,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-16 14:45:35,944 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:35,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:35,944 INFO L82 PathProgramCache]: Analyzing trace with hash -2049471098, now seen corresponding path program 3 times [2021-06-16 14:45:35,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:35,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092279009] [2021-06-16 14:45:35,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:36,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:36,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:36,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:36,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:45:36,006 INFO L142 QuantifierPusher]: treesize reduction 14, result has 22.2 percent of original size [2021-06-16 14:45:36,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:45:36,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:36,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:45:36,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:36,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-16 14:45:36,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:36,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 14:45:36,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:36,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 14:45:36,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:36,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:45:36,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:36,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:45:36,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:36,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:36,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:36,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:36,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092279009] [2021-06-16 14:45:36,227 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092279009] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:36,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:36,228 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-16 14:45:36,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529868060] [2021-06-16 14:45:36,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 14:45:36,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:36,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 14:45:36,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-06-16 14:45:36,229 INFO L87 Difference]: Start difference. First operand 31879 states and 81784 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:36,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:45:36,768 INFO L93 Difference]: Finished difference Result 50589 states and 133939 transitions. [2021-06-16 14:45:36,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-16 14:45:36,768 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-16 14:45:36,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:45:36,857 INFO L225 Difference]: With dead ends: 50589 [2021-06-16 14:45:36,858 INFO L226 Difference]: Without dead ends: 44483 [2021-06-16 14:45:36,858 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 313.8ms TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-06-16 14:45:37,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44483 states. [2021-06-16 14:45:37,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44483 to 31777. [2021-06-16 14:45:37,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31777 states, 31681 states have (on average 2.5744136864366656) internal successors, (81560), 31776 states have internal predecessors, (81560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:37,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31777 states to 31777 states and 81560 transitions. [2021-06-16 14:45:37,990 INFO L78 Accepts]: Start accepts. Automaton has 31777 states and 81560 transitions. Word has length 59 [2021-06-16 14:45:37,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:45:37,991 INFO L482 AbstractCegarLoop]: Abstraction has 31777 states and 81560 transitions. [2021-06-16 14:45:37,991 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:37,991 INFO L276 IsEmpty]: Start isEmpty. Operand 31777 states and 81560 transitions. [2021-06-16 14:45:37,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-16 14:45:37,993 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:37,993 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:45:37,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-16 14:45:37,993 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:37,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:37,994 INFO L82 PathProgramCache]: Analyzing trace with hash -83092990, now seen corresponding path program 1 times [2021-06-16 14:45:37,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:37,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326655166] [2021-06-16 14:45:37,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:38,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:38,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:38,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:38,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 14:45:38,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:38,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:45:38,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:38,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:45:38,105 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:45:38,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:45:38,129 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:45:38,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:45:38,150 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:45:38,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:45:38,186 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-06-16 14:45:38,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-06-16 14:45:38,241 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:45:38,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-06-16 14:45:38,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:38,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:38,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:38,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:38,306 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326655166] [2021-06-16 14:45:38,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326655166] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:38,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:38,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-16 14:45:38,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068799207] [2021-06-16 14:45:38,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 14:45:38,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:38,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 14:45:38,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-06-16 14:45:38,308 INFO L87 Difference]: Start difference. First operand 31777 states and 81560 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 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) [2021-06-16 14:45:38,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:45:38,818 INFO L93 Difference]: Finished difference Result 37532 states and 93705 transitions. [2021-06-16 14:45:38,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 14:45:38,819 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 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 [2021-06-16 14:45:38,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:45:38,886 INFO L225 Difference]: With dead ends: 37532 [2021-06-16 14:45:38,886 INFO L226 Difference]: Without dead ends: 36870 [2021-06-16 14:45:38,886 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 273.5ms TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-06-16 14:45:39,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36870 states. [2021-06-16 14:45:39,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36870 to 34942. [2021-06-16 14:45:39,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34942 states, 34846 states have (on average 2.574499225162142) internal successors, (89711), 34941 states have internal predecessors, (89711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:39,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34942 states to 34942 states and 89711 transitions. [2021-06-16 14:45:39,725 INFO L78 Accepts]: Start accepts. Automaton has 34942 states and 89711 transitions. Word has length 60 [2021-06-16 14:45:39,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:45:39,725 INFO L482 AbstractCegarLoop]: Abstraction has 34942 states and 89711 transitions. [2021-06-16 14:45:39,725 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 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) [2021-06-16 14:45:39,726 INFO L276 IsEmpty]: Start isEmpty. Operand 34942 states and 89711 transitions. [2021-06-16 14:45:39,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-16 14:45:39,727 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:39,727 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] [2021-06-16 14:45:39,727 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-16 14:45:39,727 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:39,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:39,728 INFO L82 PathProgramCache]: Analyzing trace with hash 330212886, now seen corresponding path program 2 times [2021-06-16 14:45:39,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:39,728 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780982791] [2021-06-16 14:45:39,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:39,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:39,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:39,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:39,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:45:39,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:39,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:45:39,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:39,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:45:39,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:39,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:45:39,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:39,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:45:39,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:39,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:45:39,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:39,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:45:39,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:39,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:45:39,862 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:45:39,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:45:39,893 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:45:39,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:45:39,930 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:45:39,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:45:39,987 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:45:39,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:45:40,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:40,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:40,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:40,045 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:40,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780982791] [2021-06-16 14:45:40,046 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780982791] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:40,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:40,046 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-16 14:45:40,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653283695] [2021-06-16 14:45:40,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 14:45:40,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:40,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 14:45:40,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-06-16 14:45:40,047 INFO L87 Difference]: Start difference. First operand 34942 states and 89711 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 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) [2021-06-16 14:45:40,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:45:40,876 INFO L93 Difference]: Finished difference Result 38662 states and 95690 transitions. [2021-06-16 14:45:40,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-16 14:45:40,877 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 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 [2021-06-16 14:45:40,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:45:40,946 INFO L225 Difference]: With dead ends: 38662 [2021-06-16 14:45:40,947 INFO L226 Difference]: Without dead ends: 38000 [2021-06-16 14:45:40,947 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 376.8ms TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2021-06-16 14:45:41,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38000 states. [2021-06-16 14:45:41,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38000 to 32907. [2021-06-16 14:45:41,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32907 states, 32811 states have (on average 2.5462497333211425) internal successors, (83545), 32906 states have internal predecessors, (83545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:41,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32907 states to 32907 states and 83545 transitions. [2021-06-16 14:45:41,678 INFO L78 Accepts]: Start accepts. Automaton has 32907 states and 83545 transitions. Word has length 60 [2021-06-16 14:45:41,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:45:41,678 INFO L482 AbstractCegarLoop]: Abstraction has 32907 states and 83545 transitions. [2021-06-16 14:45:41,679 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 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) [2021-06-16 14:45:41,679 INFO L276 IsEmpty]: Start isEmpty. Operand 32907 states and 83545 transitions. [2021-06-16 14:45:41,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-16 14:45:41,680 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:41,680 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:45:41,680 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-16 14:45:41,681 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:41,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:41,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1890746382, now seen corresponding path program 3 times [2021-06-16 14:45:41,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:41,681 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137926728] [2021-06-16 14:45:41,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:41,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:41,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:41,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:41,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:45:41,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:41,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-16 14:45:41,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:41,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:45:41,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:41,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:45:41,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:41,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-16 14:45:41,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:41,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:45:41,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:41,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-16 14:45:41,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:41,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-16 14:45:41,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:41,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:45:41,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:41,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-16 14:45:41,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:41,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-16 14:45:41,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:41,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-16 14:45:41,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:41,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-16 14:45:41,972 INFO L142 QuantifierPusher]: treesize reduction 29, result has 78.2 percent of original size [2021-06-16 14:45:41,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-06-16 14:45:42,065 INFO L142 QuantifierPusher]: treesize reduction 17, result has 84.8 percent of original size [2021-06-16 14:45:42,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-06-16 14:45:42,126 INFO L142 QuantifierPusher]: treesize reduction 32, result has 87.3 percent of original size [2021-06-16 14:45:42,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-06-16 14:45:42,191 INFO L142 QuantifierPusher]: treesize reduction 13, result has 97.0 percent of original size [2021-06-16 14:45:42,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 415 [2021-06-16 14:45:42,452 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 18 [2021-06-16 14:45:42,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:42,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:42,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:42,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:42,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137926728] [2021-06-16 14:45:42,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137926728] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:42,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:42,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-06-16 14:45:42,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499321576] [2021-06-16 14:45:42,458 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-16 14:45:42,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:42,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-16 14:45:42,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2021-06-16 14:45:42,459 INFO L87 Difference]: Start difference. First operand 32907 states and 83545 transitions. Second operand has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 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) [2021-06-16 14:45:43,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:45:43,920 INFO L93 Difference]: Finished difference Result 39517 states and 98122 transitions. [2021-06-16 14:45:43,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-16 14:45:43,921 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 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 [2021-06-16 14:45:43,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:45:43,980 INFO L225 Difference]: With dead ends: 39517 [2021-06-16 14:45:43,980 INFO L226 Difference]: Without dead ends: 39145 [2021-06-16 14:45:43,980 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1214.3ms TimeCoverageRelationStatistics Valid=139, Invalid=917, Unknown=0, NotChecked=0, Total=1056 [2021-06-16 14:45:44,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39145 states. [2021-06-16 14:45:44,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39145 to 34997. [2021-06-16 14:45:44,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34997 states, 34901 states have (on average 2.5824188418669953) internal successors, (90129), 34996 states have internal predecessors, (90129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:44,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34997 states to 34997 states and 90129 transitions. [2021-06-16 14:45:44,683 INFO L78 Accepts]: Start accepts. Automaton has 34997 states and 90129 transitions. Word has length 60 [2021-06-16 14:45:44,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:45:44,683 INFO L482 AbstractCegarLoop]: Abstraction has 34997 states and 90129 transitions. [2021-06-16 14:45:44,683 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 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) [2021-06-16 14:45:44,683 INFO L276 IsEmpty]: Start isEmpty. Operand 34997 states and 90129 transitions. [2021-06-16 14:45:44,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-16 14:45:44,685 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:44,685 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:45:44,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-16 14:45:44,685 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:44,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:44,685 INFO L82 PathProgramCache]: Analyzing trace with hash 283302386, now seen corresponding path program 4 times [2021-06-16 14:45:44,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:44,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99723276] [2021-06-16 14:45:44,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:44,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:44,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:45:44,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:45:44,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:45:44,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:45:44,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-16 14:45:44,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:45:44,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:45:44,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:45:44,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:45:44,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:45:44,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:45:44,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:45:44,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:45:44,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:45:44,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:45:44,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:44,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:45:44,949 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:45:44,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:45:45,011 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:45:45,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:45:45,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:45,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:45,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:45,081 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:45,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99723276] [2021-06-16 14:45:45,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99723276] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:45,081 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:45,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-06-16 14:45:45,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677419110] [2021-06-16 14:45:45,082 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-16 14:45:45,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:45,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-16 14:45:45,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-06-16 14:45:45,083 INFO L87 Difference]: Start difference. First operand 34997 states and 90129 transitions. Second operand has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 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) [2021-06-16 14:45:45,649 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-06-16 14:45:46,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:45:46,130 INFO L93 Difference]: Finished difference Result 41584 states and 104671 transitions. [2021-06-16 14:45:46,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-16 14:45:46,130 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 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 [2021-06-16 14:45:46,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:45:46,205 INFO L225 Difference]: With dead ends: 41584 [2021-06-16 14:45:46,206 INFO L226 Difference]: Without dead ends: 41212 [2021-06-16 14:45:46,206 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 727.7ms TimeCoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812 [2021-06-16 14:45:46,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41212 states. [2021-06-16 14:45:46,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41212 to 34975. [2021-06-16 14:45:46,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34975 states, 34879 states have (on average 2.5830729092003786) internal successors, (90095), 34974 states have internal predecessors, (90095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:46,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34975 states to 34975 states and 90095 transitions. [2021-06-16 14:45:46,947 INFO L78 Accepts]: Start accepts. Automaton has 34975 states and 90095 transitions. Word has length 60 [2021-06-16 14:45:46,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:45:46,948 INFO L482 AbstractCegarLoop]: Abstraction has 34975 states and 90095 transitions. [2021-06-16 14:45:46,948 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 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) [2021-06-16 14:45:46,948 INFO L276 IsEmpty]: Start isEmpty. Operand 34975 states and 90095 transitions. [2021-06-16 14:45:46,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-16 14:45:46,949 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:46,950 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] [2021-06-16 14:45:46,950 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-16 14:45:46,950 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:46,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:46,950 INFO L82 PathProgramCache]: Analyzing trace with hash 859312090, now seen corresponding path program 5 times [2021-06-16 14:45:46,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:46,951 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577968929] [2021-06-16 14:45:46,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:47,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:47,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:47,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:47,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:45:47,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:47,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:45:47,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:47,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:45:47,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:47,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:45:47,049 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-06-16 14:45:47,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:45:47,064 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-06-16 14:45:47,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-16 14:45:47,091 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.0 percent of original size [2021-06-16 14:45:47,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:45:47,111 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.8 percent of original size [2021-06-16 14:45:47,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-16 14:45:47,302 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.8 percent of original size [2021-06-16 14:45:47,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-16 14:45:47,326 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.0 percent of original size [2021-06-16 14:45:47,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:45:47,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:47,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-16 14:45:47,352 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.9 percent of original size [2021-06-16 14:45:47,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:45:47,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:47,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:45:47,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:47,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:45:47,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:47,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:45:47,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:47,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:45:47,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:47,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:45:47,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:47,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:45:47,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:47,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:45:47,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:47,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:45:47,524 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:45:47,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:45:47,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:47,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:47,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:47,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:47,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577968929] [2021-06-16 14:45:47,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577968929] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:47,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:47,580 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-16 14:45:47,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693947232] [2021-06-16 14:45:47,580 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-16 14:45:47,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:47,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-16 14:45:47,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-06-16 14:45:47,581 INFO L87 Difference]: Start difference. First operand 34975 states and 90095 transitions. Second operand has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 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) [2021-06-16 14:45:48,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:45:48,796 INFO L93 Difference]: Finished difference Result 36478 states and 92946 transitions. [2021-06-16 14:45:48,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-16 14:45:48,796 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 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 [2021-06-16 14:45:48,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:45:48,858 INFO L225 Difference]: With dead ends: 36478 [2021-06-16 14:45:48,859 INFO L226 Difference]: Without dead ends: 36188 [2021-06-16 14:45:48,859 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 866.4ms TimeCoverageRelationStatistics Valid=144, Invalid=978, Unknown=0, NotChecked=0, Total=1122 [2021-06-16 14:45:48,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36188 states. [2021-06-16 14:45:49,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36188 to 34846. [2021-06-16 14:45:49,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34846 states, 34754 states have (on average 2.58706911434655) internal successors, (89911), 34845 states have internal predecessors, (89911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:49,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34846 states to 34846 states and 89911 transitions. [2021-06-16 14:45:49,595 INFO L78 Accepts]: Start accepts. Automaton has 34846 states and 89911 transitions. Word has length 60 [2021-06-16 14:45:49,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:45:49,595 INFO L482 AbstractCegarLoop]: Abstraction has 34846 states and 89911 transitions. [2021-06-16 14:45:49,595 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 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) [2021-06-16 14:45:49,595 INFO L276 IsEmpty]: Start isEmpty. Operand 34846 states and 89911 transitions. [2021-06-16 14:45:49,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-16 14:45:49,597 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:49,597 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:45:49,597 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-16 14:45:49,597 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:49,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:49,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1228610580, now seen corresponding path program 1 times [2021-06-16 14:45:49,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:49,598 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404185164] [2021-06-16 14:45:49,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:49,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:49,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:49,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:49,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:45:49,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:49,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:45:49,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:49,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:45:49,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:49,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:45:49,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:49,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-16 14:45:49,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:49,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:45:49,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:49,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:45:49,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:49,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:45:49,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:49,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:45:49,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:49,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:45:49,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:49,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:45:49,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:49,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:45:49,767 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:45:49,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:45:49,808 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:45:49,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:45:49,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:49,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:49,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:49,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:49,863 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404185164] [2021-06-16 14:45:49,863 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404185164] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:49,863 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:49,863 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-16 14:45:49,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826987344] [2021-06-16 14:45:49,863 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-16 14:45:49,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:49,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-16 14:45:49,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-06-16 14:45:49,864 INFO L87 Difference]: Start difference. First operand 34846 states and 89911 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:50,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:45:50,652 INFO L93 Difference]: Finished difference Result 40463 states and 101887 transitions. [2021-06-16 14:45:50,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-16 14:45:50,653 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-16 14:45:50,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:45:50,725 INFO L225 Difference]: With dead ends: 40463 [2021-06-16 14:45:50,726 INFO L226 Difference]: Without dead ends: 39990 [2021-06-16 14:45:50,726 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 340.1ms TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2021-06-16 14:45:50,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39990 states. [2021-06-16 14:45:51,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39990 to 34838. [2021-06-16 14:45:51,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34838 states, 34746 states have (on average 2.587405744546135) internal successors, (89902), 34837 states have internal predecessors, (89902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:51,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34838 states to 34838 states and 89902 transitions. [2021-06-16 14:45:51,447 INFO L78 Accepts]: Start accepts. Automaton has 34838 states and 89902 transitions. Word has length 62 [2021-06-16 14:45:51,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:45:51,448 INFO L482 AbstractCegarLoop]: Abstraction has 34838 states and 89902 transitions. [2021-06-16 14:45:51,448 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:51,448 INFO L276 IsEmpty]: Start isEmpty. Operand 34838 states and 89902 transitions. [2021-06-16 14:45:51,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-16 14:45:51,450 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:51,450 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:45:51,450 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-16 14:45:51,450 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:51,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:51,451 INFO L82 PathProgramCache]: Analyzing trace with hash 205935824, now seen corresponding path program 2 times [2021-06-16 14:45:51,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:51,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365253970] [2021-06-16 14:45:51,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:51,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:51,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:45:51,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:45:51,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:45:51,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:45:51,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-16 14:45:51,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:45:51,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:45:51,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:45:51,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:45:51,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:45:51,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:45:51,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:45:51,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:45:51,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:45:51,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:45:51,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:45:51,703 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:45:51,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:45:51,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:51,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:51,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:51,765 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:51,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365253970] [2021-06-16 14:45:51,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365253970] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:51,766 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:51,766 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-06-16 14:45:51,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303153871] [2021-06-16 14:45:51,766 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-16 14:45:51,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:51,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-16 14:45:51,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-06-16 14:45:51,767 INFO L87 Difference]: Start difference. First operand 34838 states and 89902 transitions. Second operand has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:52,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:45:52,933 INFO L93 Difference]: Finished difference Result 38865 states and 96663 transitions. [2021-06-16 14:45:52,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-16 14:45:52,934 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-16 14:45:52,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:45:53,001 INFO L225 Difference]: With dead ends: 38865 [2021-06-16 14:45:53,001 INFO L226 Difference]: Without dead ends: 38392 [2021-06-16 14:45:53,002 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 462.8ms TimeCoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2021-06-16 14:45:53,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38392 states. [2021-06-16 14:45:53,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38392 to 33248. [2021-06-16 14:45:53,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33248 states, 33156 states have (on average 2.5541983351429605) internal successors, (84687), 33247 states have internal predecessors, (84687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:53,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33248 states to 33248 states and 84687 transitions. [2021-06-16 14:45:53,710 INFO L78 Accepts]: Start accepts. Automaton has 33248 states and 84687 transitions. Word has length 62 [2021-06-16 14:45:53,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:45:53,710 INFO L482 AbstractCegarLoop]: Abstraction has 33248 states and 84687 transitions. [2021-06-16 14:45:53,710 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:53,710 INFO L276 IsEmpty]: Start isEmpty. Operand 33248 states and 84687 transitions. [2021-06-16 14:45:53,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-16 14:45:53,712 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:53,713 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:45:53,713 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-16 14:45:53,713 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:53,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:53,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1353300210, now seen corresponding path program 3 times [2021-06-16 14:45:53,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:53,713 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074333793] [2021-06-16 14:45:53,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:53,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:53,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:53,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:53,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:45:53,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:53,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:45:53,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:53,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:45:53,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:53,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:45:53,801 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-06-16 14:45:53,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:45:53,815 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-06-16 14:45:53,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-16 14:45:53,830 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.0 percent of original size [2021-06-16 14:45:53,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:45:53,846 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.8 percent of original size [2021-06-16 14:45:53,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-16 14:45:53,858 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.8 percent of original size [2021-06-16 14:45:53,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-16 14:45:53,875 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.0 percent of original size [2021-06-16 14:45:53,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:45:53,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:53,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-16 14:45:53,900 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.9 percent of original size [2021-06-16 14:45:53,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:45:53,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:53,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:45:53,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:53,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:45:53,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:53,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:45:53,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:53,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:45:53,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:53,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:45:54,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:54,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:45:54,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:54,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:45:54,050 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:45:54,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:45:54,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:54,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:54,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:54,104 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:54,104 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074333793] [2021-06-16 14:45:54,104 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074333793] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:54,104 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:54,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-16 14:45:54,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210449046] [2021-06-16 14:45:54,105 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-16 14:45:54,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:54,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-16 14:45:54,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-06-16 14:45:54,106 INFO L87 Difference]: Start difference. First operand 33248 states and 84687 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:55,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:45:55,367 INFO L93 Difference]: Finished difference Result 41556 states and 103718 transitions. [2021-06-16 14:45:55,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-16 14:45:55,367 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-16 14:45:55,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:45:55,438 INFO L225 Difference]: With dead ends: 41556 [2021-06-16 14:45:55,438 INFO L226 Difference]: Without dead ends: 41158 [2021-06-16 14:45:55,439 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 650.1ms TimeCoverageRelationStatistics Valid=132, Invalid=798, Unknown=0, NotChecked=0, Total=930 [2021-06-16 14:45:55,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41158 states. [2021-06-16 14:45:56,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41158 to 34339. [2021-06-16 14:45:56,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34339 states, 34251 states have (on average 2.585647134390237) internal successors, (88561), 34338 states have internal predecessors, (88561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:56,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34339 states to 34339 states and 88561 transitions. [2021-06-16 14:45:56,162 INFO L78 Accepts]: Start accepts. Automaton has 34339 states and 88561 transitions. Word has length 62 [2021-06-16 14:45:56,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:45:56,162 INFO L482 AbstractCegarLoop]: Abstraction has 34339 states and 88561 transitions. [2021-06-16 14:45:56,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:56,162 INFO L276 IsEmpty]: Start isEmpty. Operand 34339 states and 88561 transitions. [2021-06-16 14:45:56,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-16 14:45:56,165 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:56,165 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:45:56,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-16 14:45:56,165 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:56,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:56,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1980930419, now seen corresponding path program 1 times [2021-06-16 14:45:56,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:56,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371809718] [2021-06-16 14:45:56,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:56,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:56,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:56,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:56,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:45:56,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:56,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:45:56,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:56,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:45:56,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:56,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:45:56,504 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-06-16 14:45:56,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:45:56,527 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-06-16 14:45:56,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-16 14:45:56,544 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.0 percent of original size [2021-06-16 14:45:56,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:45:56,562 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.8 percent of original size [2021-06-16 14:45:56,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-16 14:45:56,573 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.8 percent of original size [2021-06-16 14:45:56,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-16 14:45:56,595 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.0 percent of original size [2021-06-16 14:45:56,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:45:56,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:56,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-16 14:45:56,620 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.9 percent of original size [2021-06-16 14:45:56,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:45:56,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:56,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:45:56,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:56,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:45:56,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:56,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:45:56,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:56,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:45:56,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:56,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:45:56,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:56,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:45:56,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:56,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:45:56,779 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:45:56,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:45:56,838 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:45:56,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:45:56,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:56,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:56,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:56,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:56,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371809718] [2021-06-16 14:45:56,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371809718] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:56,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:56,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-16 14:45:56,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537846844] [2021-06-16 14:45:56,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-16 14:45:56,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:56,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-16 14:45:56,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-06-16 14:45:56,895 INFO L87 Difference]: Start difference. First operand 34339 states and 88561 transitions. Second operand has 20 states, 20 states have (on average 3.1) internal successors, (62), 20 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:58,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:45:58,154 INFO L93 Difference]: Finished difference Result 39908 states and 99905 transitions. [2021-06-16 14:45:58,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-16 14:45:58,154 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 20 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-16 14:45:58,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:45:58,217 INFO L225 Difference]: With dead ends: 39908 [2021-06-16 14:45:58,217 INFO L226 Difference]: Without dead ends: 39491 [2021-06-16 14:45:58,217 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 740.0ms TimeCoverageRelationStatistics Valid=131, Invalid=861, Unknown=0, NotChecked=0, Total=992 [2021-06-16 14:45:58,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39491 states. [2021-06-16 14:45:58,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39491 to 32403. [2021-06-16 14:45:58,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32403 states, 32319 states have (on average 2.560320554472601) internal successors, (82747), 32402 states have internal predecessors, (82747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:58,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32403 states to 32403 states and 82747 transitions. [2021-06-16 14:45:58,843 INFO L78 Accepts]: Start accepts. Automaton has 32403 states and 82747 transitions. Word has length 62 [2021-06-16 14:45:58,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:45:58,843 INFO L482 AbstractCegarLoop]: Abstraction has 32403 states and 82747 transitions. [2021-06-16 14:45:58,844 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 20 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:45:58,844 INFO L276 IsEmpty]: Start isEmpty. Operand 32403 states and 82747 transitions. [2021-06-16 14:45:58,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-16 14:45:58,847 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:45:58,847 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] [2021-06-16 14:45:58,847 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-16 14:45:58,847 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:45:58,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:45:58,847 INFO L82 PathProgramCache]: Analyzing trace with hash 882695629, now seen corresponding path program 1 times [2021-06-16 14:45:58,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:45:58,847 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682381119] [2021-06-16 14:45:58,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:45:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:45:58,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:58,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:58,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:58,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:45:58,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:58,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:45:58,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:58,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:45:58,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:58,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:45:58,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:58,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-16 14:45:58,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:58,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:45:58,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:58,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-16 14:45:58,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:58,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:45:58,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:58,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:45:59,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:59,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:45:59,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:59,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:45:59,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:59,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:45:59,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:59,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:45:59,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:59,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:45:59,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:59,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:45:59,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:59,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:45:59,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:59,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:45:59,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:59,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:45:59,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:59,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:45:59,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:59,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:45:59,193 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:45:59,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:45:59,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:45:59,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:45:59,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:45:59,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:45:59,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682381119] [2021-06-16 14:45:59,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682381119] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:45:59,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:45:59,245 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-16 14:45:59,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723185752] [2021-06-16 14:45:59,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-16 14:45:59,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:45:59,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-16 14:45:59,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-06-16 14:45:59,246 INFO L87 Difference]: Start difference. First operand 32403 states and 82747 transitions. Second operand has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 19 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:00,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:00,318 INFO L93 Difference]: Finished difference Result 38788 states and 96976 transitions. [2021-06-16 14:46:00,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-16 14:46:00,318 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 19 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-06-16 14:46:00,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:00,388 INFO L225 Difference]: With dead ends: 38788 [2021-06-16 14:46:00,389 INFO L226 Difference]: Without dead ends: 38472 [2021-06-16 14:46:00,389 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 563.5ms TimeCoverageRelationStatistics Valid=124, Invalid=806, Unknown=0, NotChecked=0, Total=930 [2021-06-16 14:46:00,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38472 states. [2021-06-16 14:46:01,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38472 to 34384. [2021-06-16 14:46:01,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34384 states, 34300 states have (on average 2.5982798833819243) internal successors, (89121), 34383 states have internal predecessors, (89121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:01,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34384 states to 34384 states and 89121 transitions. [2021-06-16 14:46:01,195 INFO L78 Accepts]: Start accepts. Automaton has 34384 states and 89121 transitions. Word has length 65 [2021-06-16 14:46:01,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:01,195 INFO L482 AbstractCegarLoop]: Abstraction has 34384 states and 89121 transitions. [2021-06-16 14:46:01,195 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 19 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:01,195 INFO L276 IsEmpty]: Start isEmpty. Operand 34384 states and 89121 transitions. [2021-06-16 14:46:01,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-16 14:46:01,200 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:01,200 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:01,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-16 14:46:01,200 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:01,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:01,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1576622827, now seen corresponding path program 2 times [2021-06-16 14:46:01,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:01,201 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645250956] [2021-06-16 14:46:01,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:01,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:01,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:01,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:01,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:01,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:01,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:46:01,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:01,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:46:01,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:01,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:46:01,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:01,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:01,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:01,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-16 14:46:01,367 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.7 percent of original size [2021-06-16 14:46:01,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-16 14:46:01,387 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-06-16 14:46:01,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-16 14:46:01,433 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.6 percent of original size [2021-06-16 14:46:01,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-06-16 14:46:01,446 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.6 percent of original size [2021-06-16 14:46:01,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-06-16 14:46:01,494 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.1 percent of original size [2021-06-16 14:46:01,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-16 14:46:01,509 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.6 percent of original size [2021-06-16 14:46:01,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-16 14:46:01,551 INFO L142 QuantifierPusher]: treesize reduction 18, result has 73.1 percent of original size [2021-06-16 14:46:01,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-16 14:46:01,594 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-06-16 14:46:01,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-16 14:46:01,638 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.2 percent of original size [2021-06-16 14:46:01,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-06-16 14:46:01,656 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.2 percent of original size [2021-06-16 14:46:01,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-06-16 14:46:01,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:01,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-16 14:46:01,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:01,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-16 14:46:01,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:01,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:01,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:01,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:01,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:01,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:01,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:01,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:01,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:01,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:01,930 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:01,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-06-16 14:46:02,229 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 18 [2021-06-16 14:46:02,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:02,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:02,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:02,231 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:02,231 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645250956] [2021-06-16 14:46:02,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645250956] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:02,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:02,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-16 14:46:02,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091024691] [2021-06-16 14:46:02,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-16 14:46:02,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:02,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-16 14:46:02,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2021-06-16 14:46:02,233 INFO L87 Difference]: Start difference. First operand 34384 states and 89121 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:03,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:03,377 INFO L93 Difference]: Finished difference Result 40513 states and 102772 transitions. [2021-06-16 14:46:03,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-16 14:46:03,377 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-06-16 14:46:03,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:03,593 INFO L225 Difference]: With dead ends: 40513 [2021-06-16 14:46:03,593 INFO L226 Difference]: Without dead ends: 40236 [2021-06-16 14:46:03,594 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 1288.9ms TimeCoverageRelationStatistics Valid=151, Invalid=1109, Unknown=0, NotChecked=0, Total=1260 [2021-06-16 14:46:03,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40236 states. [2021-06-16 14:46:04,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40236 to 32819. [2021-06-16 14:46:04,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32819 states, 32743 states have (on average 2.6092905353816085) internal successors, (85436), 32818 states have internal predecessors, (85436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:04,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32819 states to 32819 states and 85436 transitions. [2021-06-16 14:46:04,319 INFO L78 Accepts]: Start accepts. Automaton has 32819 states and 85436 transitions. Word has length 65 [2021-06-16 14:46:04,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:04,319 INFO L482 AbstractCegarLoop]: Abstraction has 32819 states and 85436 transitions. [2021-06-16 14:46:04,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:04,320 INFO L276 IsEmpty]: Start isEmpty. Operand 32819 states and 85436 transitions. [2021-06-16 14:46:04,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-16 14:46:04,323 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:04,323 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:04,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-16 14:46:04,323 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:04,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:04,324 INFO L82 PathProgramCache]: Analyzing trace with hash -53427542, now seen corresponding path program 1 times [2021-06-16 14:46:04,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:04,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046657646] [2021-06-16 14:46:04,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:04,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:04,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:04,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:04,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:46:04,372 INFO L142 QuantifierPusher]: treesize reduction 21, result has 16.0 percent of original size [2021-06-16 14:46:04,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:46:04,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:04,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:46:04,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:04,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-16 14:46:04,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:04,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-16 14:46:04,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:04,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 14:46:04,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:04,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 14:46:04,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:04,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:46:04,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:04,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:46:04,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:04,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:04,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:04,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:04,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046657646] [2021-06-16 14:46:04,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046657646] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:04,424 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:04,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-16 14:46:04,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181520189] [2021-06-16 14:46:04,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 14:46:04,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:04,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 14:46:04,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-06-16 14:46:04,425 INFO L87 Difference]: Start difference. First operand 32819 states and 85436 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:04,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:04,918 INFO L93 Difference]: Finished difference Result 51196 states and 136605 transitions. [2021-06-16 14:46:04,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-16 14:46:04,918 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-06-16 14:46:04,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:05,042 INFO L225 Difference]: With dead ends: 51196 [2021-06-16 14:46:05,042 INFO L226 Difference]: Without dead ends: 44958 [2021-06-16 14:46:05,043 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 142.4ms TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-06-16 14:46:05,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44958 states. [2021-06-16 14:46:05,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44958 to 32840. [2021-06-16 14:46:05,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32840 states, 32764 states have (on average 2.6085947991698206) internal successors, (85468), 32839 states have internal predecessors, (85468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:05,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32840 states to 32840 states and 85468 transitions. [2021-06-16 14:46:05,912 INFO L78 Accepts]: Start accepts. Automaton has 32840 states and 85468 transitions. Word has length 65 [2021-06-16 14:46:05,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:05,912 INFO L482 AbstractCegarLoop]: Abstraction has 32840 states and 85468 transitions. [2021-06-16 14:46:05,912 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:05,912 INFO L276 IsEmpty]: Start isEmpty. Operand 32840 states and 85468 transitions. [2021-06-16 14:46:05,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-16 14:46:05,916 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:05,916 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] [2021-06-16 14:46:05,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-16 14:46:05,917 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:05,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:05,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1141439860, now seen corresponding path program 2 times [2021-06-16 14:46:05,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:05,917 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176857835] [2021-06-16 14:46:05,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:05,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:05,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:05,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:05,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:46:05,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:05,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:05,973 INFO L142 QuantifierPusher]: treesize reduction 44, result has 17.0 percent of original size [2021-06-16 14:46:05,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:46:05,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:05,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:46:05,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:05,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:46:05,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:05,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-16 14:46:06,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:06,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-16 14:46:06,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:06,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 14:46:06,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:06,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 14:46:06,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:06,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:46:06,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:06,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:46:06,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:06,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:06,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:06,042 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:06,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176857835] [2021-06-16 14:46:06,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176857835] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:06,042 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:06,042 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-16 14:46:06,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968941266] [2021-06-16 14:46:06,044 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 14:46:06,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:06,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 14:46:06,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-06-16 14:46:06,252 INFO L87 Difference]: Start difference. First operand 32840 states and 85468 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:06,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:06,885 INFO L93 Difference]: Finished difference Result 50414 states and 134890 transitions. [2021-06-16 14:46:06,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 14:46:06,885 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-06-16 14:46:06,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:06,968 INFO L225 Difference]: With dead ends: 50414 [2021-06-16 14:46:06,968 INFO L226 Difference]: Without dead ends: 44386 [2021-06-16 14:46:06,968 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 256.1ms TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2021-06-16 14:46:07,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44386 states. [2021-06-16 14:46:07,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44386 to 32439. [2021-06-16 14:46:07,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32439 states, 32367 states have (on average 2.611703278030092) internal successors, (84533), 32438 states have internal predecessors, (84533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:07,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32439 states to 32439 states and 84533 transitions. [2021-06-16 14:46:07,769 INFO L78 Accepts]: Start accepts. Automaton has 32439 states and 84533 transitions. Word has length 65 [2021-06-16 14:46:07,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:07,769 INFO L482 AbstractCegarLoop]: Abstraction has 32439 states and 84533 transitions. [2021-06-16 14:46:07,769 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:07,769 INFO L276 IsEmpty]: Start isEmpty. Operand 32439 states and 84533 transitions. [2021-06-16 14:46:07,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-06-16 14:46:07,774 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:07,774 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] [2021-06-16 14:46:07,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-16 14:46:07,774 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:07,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:07,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1759863863, now seen corresponding path program 1 times [2021-06-16 14:46:07,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:07,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904962607] [2021-06-16 14:46:07,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:07,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:07,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:07,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:07,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:46:07,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:07,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:46:07,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:07,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:46:07,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:07,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:46:07,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:07,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-16 14:46:07,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:07,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:07,893 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.2 percent of original size [2021-06-16 14:46:07,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-16 14:46:07,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:07,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:07,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:07,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-16 14:46:07,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:07,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-16 14:46:07,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:07,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:08,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:08,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-16 14:46:08,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:08,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-06-16 14:46:08,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:08,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:08,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:08,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:08,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:08,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-16 14:46:08,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:08,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:46:08,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:08,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:08,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:08,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:08,451 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:08,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:08,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:08,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:08,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:08,525 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:08,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904962607] [2021-06-16 14:46:08,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904962607] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:08,525 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:08,525 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-16 14:46:08,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806491028] [2021-06-16 14:46:08,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-16 14:46:08,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:08,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-16 14:46:08,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-16 14:46:08,529 INFO L87 Difference]: Start difference. First operand 32439 states and 84533 transitions. Second operand has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:09,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:09,395 INFO L93 Difference]: Finished difference Result 39881 states and 101599 transitions. [2021-06-16 14:46:09,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-16 14:46:09,396 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-06-16 14:46:09,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:09,467 INFO L225 Difference]: With dead ends: 39881 [2021-06-16 14:46:09,467 INFO L226 Difference]: Without dead ends: 39446 [2021-06-16 14:46:09,467 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 853.5ms TimeCoverageRelationStatistics Valid=121, Invalid=691, Unknown=0, NotChecked=0, Total=812 [2021-06-16 14:46:09,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39446 states. [2021-06-16 14:46:10,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39446 to 32322. [2021-06-16 14:46:10,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32322 states, 32250 states have (on average 2.6126821705426355) internal successors, (84259), 32321 states have internal predecessors, (84259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:10,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32322 states to 32322 states and 84259 transitions. [2021-06-16 14:46:10,406 INFO L78 Accepts]: Start accepts. Automaton has 32322 states and 84259 transitions. Word has length 67 [2021-06-16 14:46:10,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:10,407 INFO L482 AbstractCegarLoop]: Abstraction has 32322 states and 84259 transitions. [2021-06-16 14:46:10,407 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:10,407 INFO L276 IsEmpty]: Start isEmpty. Operand 32322 states and 84259 transitions. [2021-06-16 14:46:10,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-06-16 14:46:10,414 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:10,414 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:10,414 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-16 14:46:10,414 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:10,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:10,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1007630919, now seen corresponding path program 2 times [2021-06-16 14:46:10,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:10,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733721862] [2021-06-16 14:46:10,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:10,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:10,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:10,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:46:10,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:46:10,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:46:10,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:10,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-16 14:46:10,744 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-06-16 14:46:10,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-16 14:46:10,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-16 14:46:10,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-16 14:46:10,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-16 14:46:10,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-16 14:46:10,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:46:10,905 INFO L142 QuantifierPusher]: treesize reduction 14, result has 71.4 percent of original size [2021-06-16 14:46:10,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:46:10,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:46:10,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:10,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:10,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:11,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:11,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:11,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:11,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:11,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:11,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:11,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:11,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:11,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:11,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:11,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:11,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:46:11,146 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:11,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:11,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:11,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:11,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:11,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:11,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733721862] [2021-06-16 14:46:11,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733721862] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:11,216 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:11,216 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-16 14:46:11,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461190948] [2021-06-16 14:46:11,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-16 14:46:11,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:11,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-16 14:46:11,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-06-16 14:46:11,218 INFO L87 Difference]: Start difference. First operand 32322 states and 84259 transitions. Second operand has 20 states, 20 states have (on average 3.35) internal successors, (67), 20 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:12,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:12,501 INFO L93 Difference]: Finished difference Result 37217 states and 93739 transitions. [2021-06-16 14:46:12,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-16 14:46:12,502 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.35) internal successors, (67), 20 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-06-16 14:46:12,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:12,564 INFO L225 Difference]: With dead ends: 37217 [2021-06-16 14:46:12,565 INFO L226 Difference]: Without dead ends: 36785 [2021-06-16 14:46:12,565 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1029.6ms TimeCoverageRelationStatistics Valid=145, Invalid=911, Unknown=0, NotChecked=0, Total=1056 [2021-06-16 14:46:12,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36785 states. [2021-06-16 14:46:13,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36785 to 29768. [2021-06-16 14:46:13,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29768 states, 29700 states have (on average 2.580909090909091) internal successors, (76653), 29767 states have internal predecessors, (76653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:13,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29768 states to 29768 states and 76653 transitions. [2021-06-16 14:46:13,215 INFO L78 Accepts]: Start accepts. Automaton has 29768 states and 76653 transitions. Word has length 67 [2021-06-16 14:46:13,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:13,215 INFO L482 AbstractCegarLoop]: Abstraction has 29768 states and 76653 transitions. [2021-06-16 14:46:13,215 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.35) internal successors, (67), 20 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:13,215 INFO L276 IsEmpty]: Start isEmpty. Operand 29768 states and 76653 transitions. [2021-06-16 14:46:13,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-16 14:46:13,220 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:13,221 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:13,221 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-16 14:46:13,221 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:13,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:13,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1971212459, now seen corresponding path program 1 times [2021-06-16 14:46:13,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:13,221 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110416414] [2021-06-16 14:46:13,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:13,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:13,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:13,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:13,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 14:46:13,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:13,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:13,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:13,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:13,292 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:46:13,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:13,311 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:46:13,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:13,331 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:46:13,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:13,353 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:46:13,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:13,378 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-06-16 14:46:13,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-06-16 14:46:13,431 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:13,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-06-16 14:46:13,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:13,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:13,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:13,494 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:13,494 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110416414] [2021-06-16 14:46:13,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110416414] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:13,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:13,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-16 14:46:13,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583661811] [2021-06-16 14:46:13,495 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-16 14:46:13,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:13,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-16 14:46:13,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-06-16 14:46:13,496 INFO L87 Difference]: Start difference. First operand 29768 states and 76653 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:13,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:13,974 INFO L93 Difference]: Finished difference Result 34180 states and 85661 transitions. [2021-06-16 14:46:13,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 14:46:13,974 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-06-16 14:46:13,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:14,030 INFO L225 Difference]: With dead ends: 34180 [2021-06-16 14:46:14,030 INFO L226 Difference]: Without dead ends: 32985 [2021-06-16 14:46:14,030 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 298.5ms TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-06-16 14:46:14,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32985 states. [2021-06-16 14:46:14,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32985 to 31175. [2021-06-16 14:46:14,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31175 states, 31107 states have (on average 2.580544571961295) internal successors, (80273), 31174 states have internal predecessors, (80273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:14,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31175 states to 31175 states and 80273 transitions. [2021-06-16 14:46:14,720 INFO L78 Accepts]: Start accepts. Automaton has 31175 states and 80273 transitions. Word has length 68 [2021-06-16 14:46:14,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:14,720 INFO L482 AbstractCegarLoop]: Abstraction has 31175 states and 80273 transitions. [2021-06-16 14:46:14,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:14,720 INFO L276 IsEmpty]: Start isEmpty. Operand 31175 states and 80273 transitions. [2021-06-16 14:46:14,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-16 14:46:14,725 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:14,725 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:14,725 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-16 14:46:14,725 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:14,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:14,726 INFO L82 PathProgramCache]: Analyzing trace with hash -483334295, now seen corresponding path program 2 times [2021-06-16 14:46:14,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:14,727 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686454684] [2021-06-16 14:46:14,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:14,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:14,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:14,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:14,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:46:14,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:14,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:46:14,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:14,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:46:14,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:14,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:46:14,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:14,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:46:14,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:14,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:14,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:14,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:14,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:14,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:46:14,834 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:46:14,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:14,865 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:46:14,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:14,897 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:46:14,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:14,931 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:46:14,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:46:14,987 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:14,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:15,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:15,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:15,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:15,217 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:15,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686454684] [2021-06-16 14:46:15,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686454684] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:15,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:15,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-16 14:46:15,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819909051] [2021-06-16 14:46:15,218 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-16 14:46:15,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:15,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-16 14:46:15,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-06-16 14:46:15,219 INFO L87 Difference]: Start difference. First operand 31175 states and 80273 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:16,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:16,031 INFO L93 Difference]: Finished difference Result 35573 states and 89266 transitions. [2021-06-16 14:46:16,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-16 14:46:16,032 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-06-16 14:46:16,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:16,092 INFO L225 Difference]: With dead ends: 35573 [2021-06-16 14:46:16,092 INFO L226 Difference]: Without dead ends: 34378 [2021-06-16 14:46:16,093 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 633.4ms TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2021-06-16 14:46:16,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34378 states. [2021-06-16 14:46:16,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34378 to 31161. [2021-06-16 14:46:16,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31161 states, 31093 states have (on average 2.581224069726305) internal successors, (80258), 31160 states have internal predecessors, (80258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:16,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31161 states to 31161 states and 80258 transitions. [2021-06-16 14:46:16,715 INFO L78 Accepts]: Start accepts. Automaton has 31161 states and 80258 transitions. Word has length 68 [2021-06-16 14:46:16,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:16,716 INFO L482 AbstractCegarLoop]: Abstraction has 31161 states and 80258 transitions. [2021-06-16 14:46:16,716 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:16,716 INFO L276 IsEmpty]: Start isEmpty. Operand 31161 states and 80258 transitions. [2021-06-16 14:46:16,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-16 14:46:16,723 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:16,723 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:16,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-16 14:46:16,724 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:16,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:16,724 INFO L82 PathProgramCache]: Analyzing trace with hash 831998305, now seen corresponding path program 3 times [2021-06-16 14:46:16,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:16,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952259052] [2021-06-16 14:46:16,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:16,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:16,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:16,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:16,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:46:16,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:16,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:46:16,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:16,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:46:16,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:16,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:46:16,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:16,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-16 14:46:16,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:16,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:16,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:16,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:16,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:16,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:16,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:16,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:16,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:16,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:46:16,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:16,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:16,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:16,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:16,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:16,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:16,920 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:46:16,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:16,952 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:46:16,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:16,982 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:46:16,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:46:17,036 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:17,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:17,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:17,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:17,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:17,087 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:17,087 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952259052] [2021-06-16 14:46:17,087 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952259052] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:17,087 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:17,087 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-06-16 14:46:17,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376504702] [2021-06-16 14:46:17,087 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-16 14:46:17,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:17,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-16 14:46:17,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-06-16 14:46:17,088 INFO L87 Difference]: Start difference. First operand 31161 states and 80258 transitions. Second operand has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:17,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:17,965 INFO L93 Difference]: Finished difference Result 35552 states and 89243 transitions. [2021-06-16 14:46:17,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-16 14:46:17,966 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-06-16 14:46:17,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:18,026 INFO L225 Difference]: With dead ends: 35552 [2021-06-16 14:46:18,027 INFO L226 Difference]: Without dead ends: 34357 [2021-06-16 14:46:18,027 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 440.0ms TimeCoverageRelationStatistics Valid=90, Invalid=560, Unknown=0, NotChecked=0, Total=650 [2021-06-16 14:46:18,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34357 states. [2021-06-16 14:46:18,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34357 to 31154. [2021-06-16 14:46:18,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31154 states, 31086 states have (on average 2.581547963713569) internal successors, (80250), 31153 states have internal predecessors, (80250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:18,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31154 states to 31154 states and 80250 transitions. [2021-06-16 14:46:18,675 INFO L78 Accepts]: Start accepts. Automaton has 31154 states and 80250 transitions. Word has length 68 [2021-06-16 14:46:18,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:18,676 INFO L482 AbstractCegarLoop]: Abstraction has 31154 states and 80250 transitions. [2021-06-16 14:46:18,676 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:18,676 INFO L276 IsEmpty]: Start isEmpty. Operand 31154 states and 80250 transitions. [2021-06-16 14:46:18,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-16 14:46:18,682 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:18,682 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] [2021-06-16 14:46:18,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-16 14:46:18,682 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:18,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:18,682 INFO L82 PathProgramCache]: Analyzing trace with hash 2035384133, now seen corresponding path program 4 times [2021-06-16 14:46:18,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:18,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974339897] [2021-06-16 14:46:18,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:18,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:18,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:46:18,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:46:18,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:46:18,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:46:18,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-16 14:46:18,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:18,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:18,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:18,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:18,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:18,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:18,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:18,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:18,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:46:18,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:18,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:18,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:18,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:18,943 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:46:18,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:18,978 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-06-16 14:46:18,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-06-16 14:46:19,039 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:19,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-06-16 14:46:19,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:19,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:19,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:19,107 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:19,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974339897] [2021-06-16 14:46:19,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974339897] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:19,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:19,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-16 14:46:19,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591940903] [2021-06-16 14:46:19,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-16 14:46:19,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:19,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-16 14:46:19,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-16 14:46:19,108 INFO L87 Difference]: Start difference. First operand 31154 states and 80250 transitions. Second operand has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:20,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:20,174 INFO L93 Difference]: Finished difference Result 35530 states and 89216 transitions. [2021-06-16 14:46:20,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-16 14:46:20,175 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-06-16 14:46:20,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:20,236 INFO L225 Difference]: With dead ends: 35530 [2021-06-16 14:46:20,236 INFO L226 Difference]: Without dead ends: 34335 [2021-06-16 14:46:20,237 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 814.8ms TimeCoverageRelationStatistics Valid=121, Invalid=809, Unknown=0, NotChecked=0, Total=930 [2021-06-16 14:46:20,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34335 states. [2021-06-16 14:46:20,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34335 to 31140. [2021-06-16 14:46:20,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31140 states, 31072 states have (on average 2.582131822863028) internal successors, (80232), 31139 states have internal predecessors, (80232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:20,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31140 states to 31140 states and 80232 transitions. [2021-06-16 14:46:20,876 INFO L78 Accepts]: Start accepts. Automaton has 31140 states and 80232 transitions. Word has length 68 [2021-06-16 14:46:20,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:20,876 INFO L482 AbstractCegarLoop]: Abstraction has 31140 states and 80232 transitions. [2021-06-16 14:46:20,876 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:20,876 INFO L276 IsEmpty]: Start isEmpty. Operand 31140 states and 80232 transitions. [2021-06-16 14:46:20,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-16 14:46:20,882 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:20,883 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:20,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-16 14:46:20,883 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:20,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:20,883 INFO L82 PathProgramCache]: Analyzing trace with hash -992540623, now seen corresponding path program 5 times [2021-06-16 14:46:20,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:20,884 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14514005] [2021-06-16 14:46:20,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:20,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:20,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:20,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:20,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:46:20,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:20,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:46:20,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:20,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:46:20,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:20,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:46:20,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:20,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-16 14:46:20,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:20,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-16 14:46:20,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:20,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-16 14:46:20,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:20,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:46:21,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:21,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:21,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:21,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:21,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:21,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:46:21,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:21,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:21,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:21,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:21,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:21,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:21,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:21,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:21,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:21,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:21,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:21,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:21,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:21,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:46:21,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:21,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:21,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:21,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:21,196 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:46:21,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:46:21,248 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:21,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:21,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:21,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:21,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:21,302 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:21,302 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14514005] [2021-06-16 14:46:21,302 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14514005] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:21,302 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:21,302 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-16 14:46:21,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979307268] [2021-06-16 14:46:21,302 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-16 14:46:21,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:21,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-16 14:46:21,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2021-06-16 14:46:21,303 INFO L87 Difference]: Start difference. First operand 31140 states and 80232 transitions. Second operand has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:22,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:22,346 INFO L93 Difference]: Finished difference Result 35374 states and 88922 transitions. [2021-06-16 14:46:22,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-16 14:46:22,346 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-06-16 14:46:22,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:22,410 INFO L225 Difference]: With dead ends: 35374 [2021-06-16 14:46:22,410 INFO L226 Difference]: Without dead ends: 34189 [2021-06-16 14:46:22,410 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 633.7ms TimeCoverageRelationStatistics Valid=134, Invalid=922, Unknown=0, NotChecked=0, Total=1056 [2021-06-16 14:46:22,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34189 states. [2021-06-16 14:46:22,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34189 to 31024. [2021-06-16 14:46:23,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31024 states, 30956 states have (on average 2.583990179609769) internal successors, (79990), 31023 states have internal predecessors, (79990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:23,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31024 states to 31024 states and 79990 transitions. [2021-06-16 14:46:23,075 INFO L78 Accepts]: Start accepts. Automaton has 31024 states and 79990 transitions. Word has length 68 [2021-06-16 14:46:23,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:23,076 INFO L482 AbstractCegarLoop]: Abstraction has 31024 states and 79990 transitions. [2021-06-16 14:46:23,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:23,076 INFO L276 IsEmpty]: Start isEmpty. Operand 31024 states and 79990 transitions. [2021-06-16 14:46:23,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-16 14:46:23,080 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:23,081 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:23,081 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-16 14:46:23,081 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:23,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:23,081 INFO L82 PathProgramCache]: Analyzing trace with hash -265719327, now seen corresponding path program 6 times [2021-06-16 14:46:23,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:23,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932968474] [2021-06-16 14:46:23,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:23,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:23,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:23,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:46:23,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:46:23,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:46:23,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:23,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-16 14:46:23,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-16 14:46:23,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-16 14:46:23,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-16 14:46:23,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-16 14:46:23,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-16 14:46:23,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:46:23,293 INFO L142 QuantifierPusher]: treesize reduction 14, result has 71.4 percent of original size [2021-06-16 14:46:23,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:46:23,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:46:23,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:23,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:23,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:23,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:23,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:23,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:23,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:23,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:23,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:23,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:23,559 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:23,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:23,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:23,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:23,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:23,634 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:23,634 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932968474] [2021-06-16 14:46:23,634 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932968474] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:23,634 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:23,634 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-16 14:46:23,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430341902] [2021-06-16 14:46:23,635 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-16 14:46:23,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:23,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-16 14:46:23,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-06-16 14:46:23,635 INFO L87 Difference]: Start difference. First operand 31024 states and 79990 transitions. Second operand has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:25,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:25,061 INFO L93 Difference]: Finished difference Result 33450 states and 84732 transitions. [2021-06-16 14:46:25,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-16 14:46:25,061 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-06-16 14:46:25,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:25,120 INFO L225 Difference]: With dead ends: 33450 [2021-06-16 14:46:25,120 INFO L226 Difference]: Without dead ends: 32246 [2021-06-16 14:46:25,121 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1062.8ms TimeCoverageRelationStatistics Valid=161, Invalid=1245, Unknown=0, NotChecked=0, Total=1406 [2021-06-16 14:46:25,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32246 states. [2021-06-16 14:46:25,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32246 to 30091. [2021-06-16 14:46:25,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30091 states, 30027 states have (on average 2.585273254071336) internal successors, (77628), 30090 states have internal predecessors, (77628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:25,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30091 states to 30091 states and 77628 transitions. [2021-06-16 14:46:25,734 INFO L78 Accepts]: Start accepts. Automaton has 30091 states and 77628 transitions. Word has length 68 [2021-06-16 14:46:25,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:25,734 INFO L482 AbstractCegarLoop]: Abstraction has 30091 states and 77628 transitions. [2021-06-16 14:46:25,734 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:25,734 INFO L276 IsEmpty]: Start isEmpty. Operand 30091 states and 77628 transitions. [2021-06-16 14:46:25,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-16 14:46:25,743 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:25,743 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:25,743 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-16 14:46:25,743 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:25,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:25,744 INFO L82 PathProgramCache]: Analyzing trace with hash -508147066, now seen corresponding path program 1 times [2021-06-16 14:46:25,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:25,744 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758422938] [2021-06-16 14:46:25,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:25,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:25,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:25,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:25,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:25,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:25,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:46:25,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:25,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:46:25,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:25,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:46:25,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:25,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:25,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:25,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-16 14:46:25,861 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.7 percent of original size [2021-06-16 14:46:25,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-16 14:46:25,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:25,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-16 14:46:26,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:26,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-06-16 14:46:26,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:26,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-06-16 14:46:26,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:26,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-16 14:46:26,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:26,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-16 14:46:26,192 INFO L142 QuantifierPusher]: treesize reduction 14, result has 79.1 percent of original size [2021-06-16 14:46:26,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:26,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:26,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:26,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:26,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-16 14:46:26,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:26,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-16 14:46:26,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:26,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-16 14:46:26,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:26,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-16 14:46:26,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:26,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-16 14:46:26,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:26,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:26,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:26,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:26,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:26,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:26,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:26,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:26,537 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:46:26,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:46:26,597 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:26,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:26,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:26,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:26,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:26,654 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:26,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758422938] [2021-06-16 14:46:26,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758422938] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:26,655 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:26,655 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-16 14:46:26,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12037689] [2021-06-16 14:46:26,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-16 14:46:26,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:26,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-16 14:46:26,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-06-16 14:46:26,656 INFO L87 Difference]: Start difference. First operand 30091 states and 77628 transitions. Second operand has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 23 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:27,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:27,908 INFO L93 Difference]: Finished difference Result 34915 states and 88194 transitions. [2021-06-16 14:46:27,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-16 14:46:27,908 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 23 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-06-16 14:46:27,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:27,967 INFO L225 Difference]: With dead ends: 34915 [2021-06-16 14:46:27,967 INFO L226 Difference]: Without dead ends: 33991 [2021-06-16 14:46:27,967 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1063.3ms TimeCoverageRelationStatistics Valid=154, Invalid=1178, Unknown=0, NotChecked=0, Total=1332 [2021-06-16 14:46:28,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33991 states. [2021-06-16 14:46:28,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33991 to 29923. [2021-06-16 14:46:28,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29923 states, 29859 states have (on average 2.5873940855353497) internal successors, (77257), 29922 states have internal predecessors, (77257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:28,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29923 states to 29923 states and 77257 transitions. [2021-06-16 14:46:28,673 INFO L78 Accepts]: Start accepts. Automaton has 29923 states and 77257 transitions. Word has length 70 [2021-06-16 14:46:28,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:28,673 INFO L482 AbstractCegarLoop]: Abstraction has 29923 states and 77257 transitions. [2021-06-16 14:46:28,673 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 23 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:28,673 INFO L276 IsEmpty]: Start isEmpty. Operand 29923 states and 77257 transitions. [2021-06-16 14:46:28,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-16 14:46:28,683 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:28,683 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] [2021-06-16 14:46:28,683 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-16 14:46:28,683 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:28,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:28,684 INFO L82 PathProgramCache]: Analyzing trace with hash 80620998, now seen corresponding path program 2 times [2021-06-16 14:46:28,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:28,684 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888068602] [2021-06-16 14:46:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:28,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:28,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:28,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:46:28,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:46:28,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:46:28,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:28,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-16 14:46:28,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:46:28,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-16 14:46:28,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-16 14:46:28,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:46:28,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-16 14:46:28,895 INFO L142 QuantifierPusher]: treesize reduction 23, result has 57.4 percent of original size [2021-06-16 14:46:28,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:28,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:28,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:28,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:28,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:28,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:29,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:29,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:29,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:29,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:29,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:29,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:29,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:29,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:46:29,086 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:46:29,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:29,128 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:46:29,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:46:29,194 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:29,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:29,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:29,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:29,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:29,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:29,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888068602] [2021-06-16 14:46:29,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888068602] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:29,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:29,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-16 14:46:29,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478771187] [2021-06-16 14:46:29,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-16 14:46:29,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:29,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-16 14:46:29,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2021-06-16 14:46:29,254 INFO L87 Difference]: Start difference. First operand 29923 states and 77257 transitions. Second operand has 20 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:30,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:30,450 INFO L93 Difference]: Finished difference Result 32734 states and 82663 transitions. [2021-06-16 14:46:30,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-16 14:46:30,451 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-06-16 14:46:30,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:30,510 INFO L225 Difference]: With dead ends: 32734 [2021-06-16 14:46:30,510 INFO L226 Difference]: Without dead ends: 32023 [2021-06-16 14:46:30,510 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 808.5ms TimeCoverageRelationStatistics Valid=127, Invalid=929, Unknown=0, NotChecked=0, Total=1056 [2021-06-16 14:46:30,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32023 states. [2021-06-16 14:46:30,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32023 to 27906. [2021-06-16 14:46:30,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27906 states, 27846 states have (on average 2.585075055663291) internal successors, (71984), 27905 states have internal predecessors, (71984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:31,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27906 states to 27906 states and 71984 transitions. [2021-06-16 14:46:31,180 INFO L78 Accepts]: Start accepts. Automaton has 27906 states and 71984 transitions. Word has length 70 [2021-06-16 14:46:31,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:31,180 INFO L482 AbstractCegarLoop]: Abstraction has 27906 states and 71984 transitions. [2021-06-16 14:46:31,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:31,181 INFO L276 IsEmpty]: Start isEmpty. Operand 27906 states and 71984 transitions. [2021-06-16 14:46:31,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-06-16 14:46:31,190 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:31,190 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] [2021-06-16 14:46:31,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-16 14:46:31,191 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:31,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:31,191 INFO L82 PathProgramCache]: Analyzing trace with hash -2135223057, now seen corresponding path program 1 times [2021-06-16 14:46:31,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:31,191 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060659754] [2021-06-16 14:46:31,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:31,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:31,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:31,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:46:31,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:46:31,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:46:31,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:31,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-16 14:46:31,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:31,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-16 14:46:31,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-06-16 14:46:31,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-06-16 14:46:31,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-06-16 14:46:31,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-06-16 14:46:31,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-16 14:46:31,426 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.6 percent of original size [2021-06-16 14:46:31,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:31,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:31,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-06-16 14:46:31,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-06-16 14:46:31,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:46:31,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:31,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:31,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:31,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:31,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:31,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:31,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:31,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:46:31,694 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:31,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:31,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:31,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:31,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:31,768 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:31,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060659754] [2021-06-16 14:46:31,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060659754] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:31,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:31,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-16 14:46:31,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247394850] [2021-06-16 14:46:31,771 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-16 14:46:31,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:31,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-16 14:46:31,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-06-16 14:46:31,772 INFO L87 Difference]: Start difference. First operand 27906 states and 71984 transitions. Second operand has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:33,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:33,085 INFO L93 Difference]: Finished difference Result 26757 states and 65492 transitions. [2021-06-16 14:46:33,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-16 14:46:33,086 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-06-16 14:46:33,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:33,134 INFO L225 Difference]: With dead ends: 26757 [2021-06-16 14:46:33,134 INFO L226 Difference]: Without dead ends: 26357 [2021-06-16 14:46:33,134 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 928.5ms TimeCoverageRelationStatistics Valid=169, Invalid=1237, Unknown=0, NotChecked=0, Total=1406 [2021-06-16 14:46:33,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26357 states. [2021-06-16 14:46:33,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26357 to 22797. [2021-06-16 14:46:33,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22797 states, 22749 states have (on average 2.512330212317025) internal successors, (57153), 22796 states have internal predecessors, (57153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:33,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22797 states to 22797 states and 57153 transitions. [2021-06-16 14:46:33,662 INFO L78 Accepts]: Start accepts. Automaton has 22797 states and 57153 transitions. Word has length 71 [2021-06-16 14:46:33,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:33,662 INFO L482 AbstractCegarLoop]: Abstraction has 22797 states and 57153 transitions. [2021-06-16 14:46:33,662 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:33,662 INFO L276 IsEmpty]: Start isEmpty. Operand 22797 states and 57153 transitions. [2021-06-16 14:46:33,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-06-16 14:46:33,669 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:33,669 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:33,669 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-16 14:46:33,669 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:33,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:33,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1097345707, now seen corresponding path program 1 times [2021-06-16 14:46:33,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:33,670 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335823594] [2021-06-16 14:46:33,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:33,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:33,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:33,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:33,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:46:33,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:33,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:46:33,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:33,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:46:33,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:33,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-16 14:46:33,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:33,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 14:46:33,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:33,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 14:46:33,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:33,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:46:33,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:33,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:46:33,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:33,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:33,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:33,742 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:33,742 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335823594] [2021-06-16 14:46:33,742 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335823594] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:33,742 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:33,742 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-16 14:46:33,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868546784] [2021-06-16 14:46:33,743 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 14:46:33,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:33,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 14:46:33,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-06-16 14:46:33,744 INFO L87 Difference]: Start difference. First operand 22797 states and 57153 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:34,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:34,121 INFO L93 Difference]: Finished difference Result 40435 states and 104120 transitions. [2021-06-16 14:46:34,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 14:46:34,121 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-06-16 14:46:34,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:34,170 INFO L225 Difference]: With dead ends: 40435 [2021-06-16 14:46:34,170 INFO L226 Difference]: Without dead ends: 27994 [2021-06-16 14:46:34,171 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 132.9ms TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2021-06-16 14:46:34,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27994 states. [2021-06-16 14:46:34,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27994 to 20591. [2021-06-16 14:46:34,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20591 states, 20550 states have (on average 2.5020924574209245) internal successors, (51418), 20590 states have internal predecessors, (51418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:34,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20591 states to 20591 states and 51418 transitions. [2021-06-16 14:46:34,684 INFO L78 Accepts]: Start accepts. Automaton has 20591 states and 51418 transitions. Word has length 71 [2021-06-16 14:46:34,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:34,685 INFO L482 AbstractCegarLoop]: Abstraction has 20591 states and 51418 transitions. [2021-06-16 14:46:34,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:34,685 INFO L276 IsEmpty]: Start isEmpty. Operand 20591 states and 51418 transitions. [2021-06-16 14:46:34,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-06-16 14:46:34,691 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:34,691 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:34,691 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-16 14:46:34,691 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:34,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:34,692 INFO L82 PathProgramCache]: Analyzing trace with hash 164784272, now seen corresponding path program 1 times [2021-06-16 14:46:34,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:34,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157376400] [2021-06-16 14:46:34,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:34,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:34,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:34,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:34,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:46:34,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:34,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:34,728 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-06-16 14:46:34,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:46:34,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:34,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:46:34,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:34,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:46:34,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:34,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:46:34,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:34,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-16 14:46:34,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:34,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-16 14:46:34,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:34,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 14:46:34,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:34,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 14:46:34,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:34,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:46:34,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:34,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:46:34,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:34,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:34,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:34,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:34,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157376400] [2021-06-16 14:46:34,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157376400] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:34,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:34,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-16 14:46:34,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372455602] [2021-06-16 14:46:34,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 14:46:34,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:34,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 14:46:34,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-06-16 14:46:34,802 INFO L87 Difference]: Start difference. First operand 20591 states and 51418 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:35,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:35,191 INFO L93 Difference]: Finished difference Result 33641 states and 86697 transitions. [2021-06-16 14:46:35,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 14:46:35,191 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-06-16 14:46:35,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:35,240 INFO L225 Difference]: With dead ends: 33641 [2021-06-16 14:46:35,241 INFO L226 Difference]: Without dead ends: 27789 [2021-06-16 14:46:35,241 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 210.3ms TimeCoverageRelationStatistics Valid=146, Invalid=316, Unknown=0, NotChecked=0, Total=462 [2021-06-16 14:46:35,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27789 states. [2021-06-16 14:46:35,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27789 to 20607. [2021-06-16 14:46:35,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20607 states, 20566 states have (on average 2.501166974618302) internal successors, (51439), 20606 states have internal predecessors, (51439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:35,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20607 states to 20607 states and 51439 transitions. [2021-06-16 14:46:35,776 INFO L78 Accepts]: Start accepts. Automaton has 20607 states and 51439 transitions. Word has length 71 [2021-06-16 14:46:35,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:35,776 INFO L482 AbstractCegarLoop]: Abstraction has 20607 states and 51439 transitions. [2021-06-16 14:46:35,776 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:35,776 INFO L276 IsEmpty]: Start isEmpty. Operand 20607 states and 51439 transitions. [2021-06-16 14:46:35,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-06-16 14:46:35,782 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:35,783 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] [2021-06-16 14:46:35,783 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-16 14:46:35,783 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:35,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:35,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1337084174, now seen corresponding path program 2 times [2021-06-16 14:46:35,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:35,783 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146623954] [2021-06-16 14:46:35,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:35,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:35,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:35,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:35,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:46:35,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:35,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 14:46:35,840 INFO L142 QuantifierPusher]: treesize reduction 37, result has 26.0 percent of original size [2021-06-16 14:46:35,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-16 14:46:35,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-16 14:46:35,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-16 14:46:35,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:46:35,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:46:35,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-16 14:46:35,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-16 14:46:35,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 14:46:35,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 14:46:35,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:46:35,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:46:35,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:35,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:35,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:35,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:35,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146623954] [2021-06-16 14:46:35,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146623954] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:35,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:35,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-16 14:46:35,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040188554] [2021-06-16 14:46:35,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-16 14:46:35,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:35,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-16 14:46:35,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-06-16 14:46:35,939 INFO L87 Difference]: Start difference. First operand 20607 states and 51439 transitions. Second operand has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:36,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:36,581 INFO L93 Difference]: Finished difference Result 30897 states and 79978 transitions. [2021-06-16 14:46:36,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-16 14:46:36,582 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-06-16 14:46:36,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:36,628 INFO L225 Difference]: With dead ends: 30897 [2021-06-16 14:46:36,629 INFO L226 Difference]: Without dead ends: 25738 [2021-06-16 14:46:36,629 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 294.0ms TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2021-06-16 14:46:36,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25738 states. [2021-06-16 14:46:36,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25738 to 18713. [2021-06-16 14:46:36,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18713 states, 18681 states have (on average 2.4880359723783525) internal successors, (46479), 18712 states have internal predecessors, (46479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:36,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18713 states to 18713 states and 46479 transitions. [2021-06-16 14:46:36,967 INFO L78 Accepts]: Start accepts. Automaton has 18713 states and 46479 transitions. Word has length 71 [2021-06-16 14:46:36,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:36,968 INFO L482 AbstractCegarLoop]: Abstraction has 18713 states and 46479 transitions. [2021-06-16 14:46:36,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:36,968 INFO L276 IsEmpty]: Start isEmpty. Operand 18713 states and 46479 transitions. [2021-06-16 14:46:36,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-06-16 14:46:36,976 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:36,976 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:36,976 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-16 14:46:36,976 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:36,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:36,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1629367466, now seen corresponding path program 1 times [2021-06-16 14:46:36,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:36,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392873745] [2021-06-16 14:46:36,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:37,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:37,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:37,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:46:37,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:46:37,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:46:37,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:37,077 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.1 percent of original size [2021-06-16 14:46:37,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-16 14:46:37,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-06-16 14:46:37,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-06-16 14:46:37,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-16 14:46:37,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-06-16 14:46:37,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-06-16 14:46:37,348 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-06-16 14:46:37,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-16 14:46:37,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-16 14:46:37,404 INFO L142 QuantifierPusher]: treesize reduction 14, result has 79.1 percent of original size [2021-06-16 14:46:37,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:37,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:37,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-16 14:46:37,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-16 14:46:37,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:46:37,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:37,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:37,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:37,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:37,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:37,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:37,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:37,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:37,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:37,756 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:37,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:37,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:37,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:37,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:37,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:37,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392873745] [2021-06-16 14:46:37,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392873745] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:37,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:37,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-06-16 14:46:37,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871191545] [2021-06-16 14:46:37,835 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-16 14:46:37,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:37,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-16 14:46:37,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2021-06-16 14:46:37,835 INFO L87 Difference]: Start difference. First operand 18713 states and 46479 transitions. Second operand has 24 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 24 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:39,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:39,376 INFO L93 Difference]: Finished difference Result 18165 states and 42741 transitions. [2021-06-16 14:46:39,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-16 14:46:39,377 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 24 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-06-16 14:46:39,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:39,403 INFO L225 Difference]: With dead ends: 18165 [2021-06-16 14:46:39,403 INFO L226 Difference]: Without dead ends: 17635 [2021-06-16 14:46:39,404 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 1216.9ms TimeCoverageRelationStatistics Valid=163, Invalid=1319, Unknown=0, NotChecked=0, Total=1482 [2021-06-16 14:46:39,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17635 states. [2021-06-16 14:46:39,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17635 to 14498. [2021-06-16 14:46:39,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14498 states, 14473 states have (on average 2.416154218199406) internal successors, (34969), 14497 states have internal predecessors, (34969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:39,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14498 states to 14498 states and 34969 transitions. [2021-06-16 14:46:39,641 INFO L78 Accepts]: Start accepts. Automaton has 14498 states and 34969 transitions. Word has length 73 [2021-06-16 14:46:39,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:39,641 INFO L482 AbstractCegarLoop]: Abstraction has 14498 states and 34969 transitions. [2021-06-16 14:46:39,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 24 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:39,642 INFO L276 IsEmpty]: Start isEmpty. Operand 14498 states and 34969 transitions. [2021-06-16 14:46:39,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-06-16 14:46:39,648 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:39,648 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] [2021-06-16 14:46:39,648 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-16 14:46:39,648 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:39,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:39,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1409959491, now seen corresponding path program 1 times [2021-06-16 14:46:39,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:39,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707480028] [2021-06-16 14:46:39,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:39,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:39,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:39,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:39,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:46:39,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:39,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:46:39,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:39,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:46:39,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:39,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:46:39,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:39,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-16 14:46:39,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:39,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:39,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:39,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-16 14:46:39,769 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:46:39,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:39,788 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.0 percent of original size [2021-06-16 14:46:39,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:39,823 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.5 percent of original size [2021-06-16 14:46:39,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-16 14:46:39,836 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.5 percent of original size [2021-06-16 14:46:39,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-16 14:46:39,878 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.0 percent of original size [2021-06-16 14:46:39,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:39,892 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-06-16 14:46:39,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-16 14:46:39,932 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.2 percent of original size [2021-06-16 14:46:39,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-06-16 14:46:39,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:39,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-16 14:46:39,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:39,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-16 14:46:40,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:40,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-16 14:46:40,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:40,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:40,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:40,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-16 14:46:40,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:40,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:46:40,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:40,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:40,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:40,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:40,203 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:40,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:40,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:40,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:40,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:40,254 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:40,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707480028] [2021-06-16 14:46:40,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707480028] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:40,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:40,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-16 14:46:40,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016143040] [2021-06-16 14:46:40,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-16 14:46:40,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:40,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-16 14:46:40,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-06-16 14:46:40,255 INFO L87 Difference]: Start difference. First operand 14498 states and 34969 transitions. Second operand has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:41,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:41,107 INFO L93 Difference]: Finished difference Result 19439 states and 46164 transitions. [2021-06-16 14:46:41,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-16 14:46:41,107 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-06-16 14:46:41,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:41,135 INFO L225 Difference]: With dead ends: 19439 [2021-06-16 14:46:41,136 INFO L226 Difference]: Without dead ends: 18866 [2021-06-16 14:46:41,136 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 790.4ms TimeCoverageRelationStatistics Valid=145, Invalid=847, Unknown=0, NotChecked=0, Total=992 [2021-06-16 14:46:41,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18866 states. [2021-06-16 14:46:41,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18866 to 14480. [2021-06-16 14:46:41,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14480 states, 14455 states have (on average 2.4168799723279144) internal successors, (34936), 14479 states have internal predecessors, (34936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:41,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 34936 transitions. [2021-06-16 14:46:41,452 INFO L78 Accepts]: Start accepts. Automaton has 14480 states and 34936 transitions. Word has length 73 [2021-06-16 14:46:41,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:41,453 INFO L482 AbstractCegarLoop]: Abstraction has 14480 states and 34936 transitions. [2021-06-16 14:46:41,453 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:41,453 INFO L276 IsEmpty]: Start isEmpty. Operand 14480 states and 34936 transitions. [2021-06-16 14:46:41,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-06-16 14:46:41,459 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:41,459 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] [2021-06-16 14:46:41,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-16 14:46:41,459 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:41,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:41,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1964449787, now seen corresponding path program 2 times [2021-06-16 14:46:41,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:41,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820981084] [2021-06-16 14:46:41,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:41,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:41,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:41,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:46:41,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:46:41,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:46:41,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:41,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-16 14:46:41,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-16 14:46:41,605 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.4 percent of original size [2021-06-16 14:46:41,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-16 14:46:41,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-16 14:46:41,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-06-16 14:46:41,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-06-16 14:46:41,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-16 14:46:41,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-16 14:46:41,773 INFO L142 QuantifierPusher]: treesize reduction 14, result has 79.1 percent of original size [2021-06-16 14:46:41,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:41,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:41,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-16 14:46:41,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-16 14:46:41,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-16 14:46:41,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:41,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-06-16 14:46:42,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:42,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-16 14:46:42,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:42,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-16 14:46:42,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:42,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:42,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:42,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:42,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:42,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:42,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:42,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:42,163 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:42,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:42,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:42,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:42,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:42,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:42,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820981084] [2021-06-16 14:46:42,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820981084] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:42,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:42,221 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-16 14:46:42,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750722846] [2021-06-16 14:46:42,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-16 14:46:42,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:42,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-16 14:46:42,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-06-16 14:46:42,222 INFO L87 Difference]: Start difference. First operand 14480 states and 34936 transitions. Second operand has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:43,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:43,413 INFO L93 Difference]: Finished difference Result 13914 states and 31542 transitions. [2021-06-16 14:46:43,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-16 14:46:43,413 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-06-16 14:46:43,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:43,432 INFO L225 Difference]: With dead ends: 13914 [2021-06-16 14:46:43,432 INFO L226 Difference]: Without dead ends: 12944 [2021-06-16 14:46:43,432 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1156.7ms TimeCoverageRelationStatistics Valid=209, Invalid=1351, Unknown=0, NotChecked=0, Total=1560 [2021-06-16 14:46:43,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12944 states. [2021-06-16 14:46:43,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12944 to 8575. [2021-06-16 14:46:43,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8575 states, 8558 states have (on average 2.283944846926852) internal successors, (19546), 8574 states have internal predecessors, (19546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8575 states to 8575 states and 19546 transitions. [2021-06-16 14:46:43,562 INFO L78 Accepts]: Start accepts. Automaton has 8575 states and 19546 transitions. Word has length 73 [2021-06-16 14:46:43,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:43,562 INFO L482 AbstractCegarLoop]: Abstraction has 8575 states and 19546 transitions. [2021-06-16 14:46:43,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:43,562 INFO L276 IsEmpty]: Start isEmpty. Operand 8575 states and 19546 transitions. [2021-06-16 14:46:43,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-16 14:46:43,566 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:43,566 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] [2021-06-16 14:46:43,566 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-16 14:46:43,566 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:43,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:43,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1554713003, now seen corresponding path program 1 times [2021-06-16 14:46:43,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:43,567 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994877289] [2021-06-16 14:46:43,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:43,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:43,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:43,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:43,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 14:46:43,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:43,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:43,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:43,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:43,629 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:46:43,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:43,647 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:46:43,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:43,668 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:46:43,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:43,690 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:46:43,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:43,713 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:46:43,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:43,739 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-06-16 14:46:43,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-06-16 14:46:43,793 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:43,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-06-16 14:46:43,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:43,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:43,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:43,857 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:43,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994877289] [2021-06-16 14:46:43,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994877289] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:43,857 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:43,857 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-16 14:46:43,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240189212] [2021-06-16 14:46:43,859 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 14:46:43,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:43,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 14:46:43,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-06-16 14:46:43,859 INFO L87 Difference]: Start difference. First operand 8575 states and 19546 transitions. Second operand has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:44,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:44,322 INFO L93 Difference]: Finished difference Result 11129 states and 24687 transitions. [2021-06-16 14:46:44,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-16 14:46:44,322 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-16 14:46:44,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:44,335 INFO L225 Difference]: With dead ends: 11129 [2021-06-16 14:46:44,335 INFO L226 Difference]: Without dead ends: 9702 [2021-06-16 14:46:44,336 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 329.5ms TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-06-16 14:46:44,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9702 states. [2021-06-16 14:46:44,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9702 to 9423. [2021-06-16 14:46:44,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9423 states, 9406 states have (on average 2.2886455453965553) internal successors, (21527), 9422 states have internal predecessors, (21527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:44,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9423 states to 9423 states and 21527 transitions. [2021-06-16 14:46:44,449 INFO L78 Accepts]: Start accepts. Automaton has 9423 states and 21527 transitions. Word has length 74 [2021-06-16 14:46:44,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:44,449 INFO L482 AbstractCegarLoop]: Abstraction has 9423 states and 21527 transitions. [2021-06-16 14:46:44,449 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:44,449 INFO L276 IsEmpty]: Start isEmpty. Operand 9423 states and 21527 transitions. [2021-06-16 14:46:44,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-16 14:46:44,454 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:44,454 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:44,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-16 14:46:44,454 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:44,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:44,454 INFO L82 PathProgramCache]: Analyzing trace with hash -71905431, now seen corresponding path program 2 times [2021-06-16 14:46:44,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:44,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792807562] [2021-06-16 14:46:44,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:44,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:44,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:44,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:44,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:46:44,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:44,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:46:44,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:44,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:46:44,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:44,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:46:44,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:44,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:46:44,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:44,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:44,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:44,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:44,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:44,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:46:44,558 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:46:44,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:44,585 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:46:44,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:44,617 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:46:44,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:44,718 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:46:44,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:44,765 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:46:44,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:46:44,821 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:44,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:44,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:44,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:44,884 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:44,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792807562] [2021-06-16 14:46:44,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792807562] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:44,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:44,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-16 14:46:44,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321753307] [2021-06-16 14:46:44,885 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-16 14:46:44,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:44,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-16 14:46:44,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-06-16 14:46:44,885 INFO L87 Difference]: Start difference. First operand 9423 states and 21527 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:45,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:45,474 INFO L93 Difference]: Finished difference Result 11963 states and 26653 transitions. [2021-06-16 14:46:45,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-16 14:46:45,475 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-16 14:46:45,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:45,490 INFO L225 Difference]: With dead ends: 11963 [2021-06-16 14:46:45,490 INFO L226 Difference]: Without dead ends: 10536 [2021-06-16 14:46:45,490 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 463.2ms TimeCoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2021-06-16 14:46:45,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10536 states. [2021-06-16 14:46:45,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10536 to 9409. [2021-06-16 14:46:45,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9409 states, 9392 states have (on average 2.29045996592845) internal successors, (21512), 9408 states have internal predecessors, (21512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:45,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9409 states to 9409 states and 21512 transitions. [2021-06-16 14:46:45,611 INFO L78 Accepts]: Start accepts. Automaton has 9409 states and 21512 transitions. Word has length 74 [2021-06-16 14:46:45,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:45,612 INFO L482 AbstractCegarLoop]: Abstraction has 9409 states and 21512 transitions. [2021-06-16 14:46:45,612 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:45,612 INFO L276 IsEmpty]: Start isEmpty. Operand 9409 states and 21512 transitions. [2021-06-16 14:46:45,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-16 14:46:45,616 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:45,616 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] [2021-06-16 14:46:45,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-16 14:46:45,617 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:45,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:45,617 INFO L82 PathProgramCache]: Analyzing trace with hash -518400159, now seen corresponding path program 3 times [2021-06-16 14:46:45,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:45,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859690691] [2021-06-16 14:46:45,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:45,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:45,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:45,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:45,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:46:45,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:45,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-16 14:46:45,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:45,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:45,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:45,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:45,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:45,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-16 14:46:45,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:45,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:46:45,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:45,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-16 14:46:45,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:45,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-16 14:46:45,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:45,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:46:45,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:45,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-16 14:46:45,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:45,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-16 14:46:45,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:45,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-16 14:46:45,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:45,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-16 14:46:45,874 INFO L142 QuantifierPusher]: treesize reduction 29, result has 78.2 percent of original size [2021-06-16 14:46:45,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-06-16 14:46:45,948 INFO L142 QuantifierPusher]: treesize reduction 17, result has 84.8 percent of original size [2021-06-16 14:46:45,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-06-16 14:46:45,997 INFO L142 QuantifierPusher]: treesize reduction 17, result has 84.8 percent of original size [2021-06-16 14:46:45,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-06-16 14:46:46,060 INFO L142 QuantifierPusher]: treesize reduction 17, result has 84.8 percent of original size [2021-06-16 14:46:46,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-06-16 14:46:46,127 INFO L142 QuantifierPusher]: treesize reduction 32, result has 87.3 percent of original size [2021-06-16 14:46:46,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-06-16 14:46:46,186 INFO L142 QuantifierPusher]: treesize reduction 13, result has 97.0 percent of original size [2021-06-16 14:46:46,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 415 [2021-06-16 14:46:46,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:46,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:46,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:46,257 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:46,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859690691] [2021-06-16 14:46:46,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859690691] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:46,258 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:46,258 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-16 14:46:46,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414584949] [2021-06-16 14:46:46,258 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-16 14:46:46,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:46,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-16 14:46:46,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2021-06-16 14:46:46,259 INFO L87 Difference]: Start difference. First operand 9409 states and 21512 transitions. Second operand has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:47,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:47,980 INFO L93 Difference]: Finished difference Result 11961 states and 26650 transitions. [2021-06-16 14:46:47,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-16 14:46:47,980 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-16 14:46:47,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:47,999 INFO L225 Difference]: With dead ends: 11961 [2021-06-16 14:46:47,999 INFO L226 Difference]: Without dead ends: 10534 [2021-06-16 14:46:48,000 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1426.5ms TimeCoverageRelationStatistics Valid=187, Invalid=1453, Unknown=0, NotChecked=0, Total=1640 [2021-06-16 14:46:48,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10534 states. [2021-06-16 14:46:48,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10534 to 9402. [2021-06-16 14:46:48,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9402 states, 9385 states have (on average 2.2913159296750134) internal successors, (21504), 9401 states have internal predecessors, (21504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:48,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9402 states to 9402 states and 21504 transitions. [2021-06-16 14:46:48,179 INFO L78 Accepts]: Start accepts. Automaton has 9402 states and 21504 transitions. Word has length 74 [2021-06-16 14:46:48,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:48,179 INFO L482 AbstractCegarLoop]: Abstraction has 9402 states and 21504 transitions. [2021-06-16 14:46:48,179 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:48,179 INFO L276 IsEmpty]: Start isEmpty. Operand 9402 states and 21504 transitions. [2021-06-16 14:46:48,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-16 14:46:48,184 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:48,184 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:48,184 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-16 14:46:48,184 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:48,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:48,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1130032571, now seen corresponding path program 4 times [2021-06-16 14:46:48,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:48,184 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862807489] [2021-06-16 14:46:48,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:48,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:48,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:46:48,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:46:48,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:46:48,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:46:48,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-16 14:46:48,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:48,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:48,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:48,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:48,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:48,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:48,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:48,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:48,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:46:48,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:48,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:48,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:48,409 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:46:48,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:48,444 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:46:48,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:48,485 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:46:48,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:46:48,547 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:48,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:48,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:48,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:48,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:48,600 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:48,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862807489] [2021-06-16 14:46:48,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862807489] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:48,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:48,600 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-16 14:46:48,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430097432] [2021-06-16 14:46:48,600 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-16 14:46:48,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:48,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-16 14:46:48,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-06-16 14:46:48,601 INFO L87 Difference]: Start difference. First operand 9402 states and 21504 transitions. Second operand has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:49,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:49,369 INFO L93 Difference]: Finished difference Result 11922 states and 26607 transitions. [2021-06-16 14:46:49,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-16 14:46:49,369 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-16 14:46:49,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:49,384 INFO L225 Difference]: With dead ends: 11922 [2021-06-16 14:46:49,384 INFO L226 Difference]: Without dead ends: 10495 [2021-06-16 14:46:49,385 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 607.6ms TimeCoverageRelationStatistics Valid=115, Invalid=877, Unknown=0, NotChecked=0, Total=992 [2021-06-16 14:46:49,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10495 states. [2021-06-16 14:46:49,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10495 to 9390. [2021-06-16 14:46:49,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9390 states, 9373 states have (on average 2.292755787901419) internal successors, (21490), 9389 states have internal predecessors, (21490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:49,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9390 states to 9390 states and 21490 transitions. [2021-06-16 14:46:49,587 INFO L78 Accepts]: Start accepts. Automaton has 9390 states and 21490 transitions. Word has length 74 [2021-06-16 14:46:49,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:49,587 INFO L482 AbstractCegarLoop]: Abstraction has 9390 states and 21490 transitions. [2021-06-16 14:46:49,587 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:49,587 INFO L276 IsEmpty]: Start isEmpty. Operand 9390 states and 21490 transitions. [2021-06-16 14:46:49,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-16 14:46:49,591 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:49,591 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:49,592 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-16 14:46:49,592 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:49,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:49,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1541195215, now seen corresponding path program 5 times [2021-06-16 14:46:49,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:49,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736404173] [2021-06-16 14:46:49,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:49,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:49,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:49,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:49,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:46:49,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:49,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:46:49,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:49,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:46:49,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:49,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:46:49,665 INFO L142 QuantifierPusher]: treesize reduction 19, result has 59.6 percent of original size [2021-06-16 14:46:49,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-16 14:46:49,678 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.2 percent of original size [2021-06-16 14:46:49,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:49,691 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.5 percent of original size [2021-06-16 14:46:49,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-16 14:46:49,707 INFO L142 QuantifierPusher]: treesize reduction 14, result has 71.4 percent of original size [2021-06-16 14:46:49,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:46:49,724 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-06-16 14:46:49,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:49,735 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-06-16 14:46:49,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:49,755 INFO L142 QuantifierPusher]: treesize reduction 14, result has 71.4 percent of original size [2021-06-16 14:46:49,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:46:49,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:49,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:49,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:49,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:49,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:49,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:49,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:49,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:49,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:49,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:49,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:49,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:49,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:49,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:46:49,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:49,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:49,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:49,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:49,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:49,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:49,946 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:46:49,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:49,979 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:46:49,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:46:50,029 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:50,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:50,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:50,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:50,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:50,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:50,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736404173] [2021-06-16 14:46:50,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736404173] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:50,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:50,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-06-16 14:46:50,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954108687] [2021-06-16 14:46:50,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-16 14:46:50,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:50,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-16 14:46:50,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-06-16 14:46:50,085 INFO L87 Difference]: Start difference. First operand 9390 states and 21490 transitions. Second operand has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:50,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:50,971 INFO L93 Difference]: Finished difference Result 11876 states and 26554 transitions. [2021-06-16 14:46:50,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-16 14:46:50,972 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-16 14:46:50,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:50,986 INFO L225 Difference]: With dead ends: 11876 [2021-06-16 14:46:50,986 INFO L226 Difference]: Without dead ends: 10454 [2021-06-16 14:46:50,987 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 757.0ms TimeCoverageRelationStatistics Valid=144, Invalid=1116, Unknown=0, NotChecked=0, Total=1260 [2021-06-16 14:46:51,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2021-06-16 14:46:51,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 9374. [2021-06-16 14:46:51,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9374 states, 9357 states have (on average 2.294538847921342) internal successors, (21470), 9373 states have internal predecessors, (21470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:51,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9374 states to 9374 states and 21470 transitions. [2021-06-16 14:46:51,118 INFO L78 Accepts]: Start accepts. Automaton has 9374 states and 21470 transitions. Word has length 74 [2021-06-16 14:46:51,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:51,119 INFO L482 AbstractCegarLoop]: Abstraction has 9374 states and 21470 transitions. [2021-06-16 14:46:51,119 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:51,119 INFO L276 IsEmpty]: Start isEmpty. Operand 9374 states and 21470 transitions. [2021-06-16 14:46:51,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-16 14:46:51,123 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:51,123 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:51,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-16 14:46:51,123 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:51,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:51,124 INFO L82 PathProgramCache]: Analyzing trace with hash -243544559, now seen corresponding path program 6 times [2021-06-16 14:46:51,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:51,124 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005172957] [2021-06-16 14:46:51,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:51,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:51,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:46:51,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 14:46:51,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-16 14:46:51,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-16 14:46:51,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-16 14:46:51,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:51,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-16 14:46:51,241 INFO L142 QuantifierPusher]: treesize reduction 15, result has 73.2 percent of original size [2021-06-16 14:46:51,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:51,260 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.0 percent of original size [2021-06-16 14:46:51,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:51,293 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.5 percent of original size [2021-06-16 14:46:51,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-16 14:46:51,305 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.5 percent of original size [2021-06-16 14:46:51,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-16 14:46:51,349 INFO L142 QuantifierPusher]: treesize reduction 4, result has 93.0 percent of original size [2021-06-16 14:46:51,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:46:51,362 INFO L142 QuantifierPusher]: treesize reduction 4, result has 92.5 percent of original size [2021-06-16 14:46:51,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-16 14:46:51,400 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.2 percent of original size [2021-06-16 14:46:51,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-06-16 14:46:51,416 INFO L142 QuantifierPusher]: treesize reduction 4, result has 94.2 percent of original size [2021-06-16 14:46:51,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-06-16 14:46:51,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-16 14:46:51,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-16 14:46:51,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-16 14:46:51,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-16 14:46:51,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-16 14:46:51,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-16 14:46:51,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:46:51,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:51,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:51,724 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.8 percent of original size [2021-06-16 14:46:51,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-06-16 14:46:51,776 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:51,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-06-16 14:46:51,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:51,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:51,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:51,846 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:51,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005172957] [2021-06-16 14:46:51,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005172957] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:51,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:51,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-16 14:46:51,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245178256] [2021-06-16 14:46:51,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-16 14:46:51,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:51,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-16 14:46:51,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-06-16 14:46:51,847 INFO L87 Difference]: Start difference. First operand 9374 states and 21470 transitions. Second operand has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:53,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:53,011 INFO L93 Difference]: Finished difference Result 11795 states and 26436 transitions. [2021-06-16 14:46:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-16 14:46:53,011 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-16 14:46:53,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:53,025 INFO L225 Difference]: With dead ends: 11795 [2021-06-16 14:46:53,025 INFO L226 Difference]: Without dead ends: 10382 [2021-06-16 14:46:53,026 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1006.1ms TimeCoverageRelationStatistics Valid=166, Invalid=1316, Unknown=0, NotChecked=0, Total=1482 [2021-06-16 14:46:53,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10382 states. [2021-06-16 14:46:53,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10382 to 9338. [2021-06-16 14:46:53,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9338 states, 9321 states have (on average 2.2967492758287738) internal successors, (21408), 9337 states have internal predecessors, (21408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:53,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9338 states to 9338 states and 21408 transitions. [2021-06-16 14:46:53,145 INFO L78 Accepts]: Start accepts. Automaton has 9338 states and 21408 transitions. Word has length 74 [2021-06-16 14:46:53,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:53,145 INFO L482 AbstractCegarLoop]: Abstraction has 9338 states and 21408 transitions. [2021-06-16 14:46:53,145 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:53,145 INFO L276 IsEmpty]: Start isEmpty. Operand 9338 states and 21408 transitions. [2021-06-16 14:46:53,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-16 14:46:53,150 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:53,150 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:53,150 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-16 14:46:53,150 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:53,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:53,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1078844239, now seen corresponding path program 7 times [2021-06-16 14:46:53,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:53,150 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730005415] [2021-06-16 14:46:53,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:53,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:53,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:53,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:46:53,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:46:53,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:46:53,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:53,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-16 14:46:53,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-16 14:46:53,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-16 14:46:53,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-06-16 14:46:53,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-06-16 14:46:53,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-06-16 14:46:53,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-06-16 14:46:53,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-16 14:46:53,394 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.6 percent of original size [2021-06-16 14:46:53,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:53,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:53,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-06-16 14:46:53,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-06-16 14:46:53,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:46:53,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:53,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:53,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:53,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:53,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:53,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:53,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:53,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:53,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:53,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:53,802 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:53,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:53,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:53,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:53,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:53,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:53,864 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730005415] [2021-06-16 14:46:53,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730005415] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:53,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:53,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-16 14:46:53,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456282490] [2021-06-16 14:46:53,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-16 14:46:53,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:53,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-16 14:46:53,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-06-16 14:46:53,865 INFO L87 Difference]: Start difference. First operand 9338 states and 21408 transitions. Second operand has 26 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 26 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:55,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:55,492 INFO L93 Difference]: Finished difference Result 10904 states and 24641 transitions. [2021-06-16 14:46:55,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-16 14:46:55,492 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 26 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-06-16 14:46:55,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:55,504 INFO L225 Difference]: With dead ends: 10904 [2021-06-16 14:46:55,504 INFO L226 Difference]: Without dead ends: 8670 [2021-06-16 14:46:55,505 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1146.0ms TimeCoverageRelationStatistics Valid=186, Invalid=1620, Unknown=0, NotChecked=0, Total=1806 [2021-06-16 14:46:55,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8670 states. [2021-06-16 14:46:55,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8670 to 7712. [2021-06-16 14:46:55,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7712 states, 7699 states have (on average 2.317054162878296) internal successors, (17839), 7711 states have internal predecessors, (17839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:55,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7712 states to 7712 states and 17839 transitions. [2021-06-16 14:46:55,595 INFO L78 Accepts]: Start accepts. Automaton has 7712 states and 17839 transitions. Word has length 74 [2021-06-16 14:46:55,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:55,596 INFO L482 AbstractCegarLoop]: Abstraction has 7712 states and 17839 transitions. [2021-06-16 14:46:55,596 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 26 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:55,596 INFO L276 IsEmpty]: Start isEmpty. Operand 7712 states and 17839 transitions. [2021-06-16 14:46:55,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-06-16 14:46:55,601 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:55,601 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:55,601 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-16 14:46:55,601 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:55,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:55,602 INFO L82 PathProgramCache]: Analyzing trace with hash 435094148, now seen corresponding path program 1 times [2021-06-16 14:46:55,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:55,602 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806825209] [2021-06-16 14:46:55,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:55,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:55,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:55,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:46:55,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:46:55,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:46:55,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:55,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-16 14:46:55,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-16 14:46:55,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-16 14:46:55,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-16 14:46:55,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-16 14:46:55,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-16 14:46:55,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:46:55,817 INFO L142 QuantifierPusher]: treesize reduction 14, result has 71.4 percent of original size [2021-06-16 14:46:55,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:46:55,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:46:55,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:55,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:55,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:55,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:55,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:55,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:46:55,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:55,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:55,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:55,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:56,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:56,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:56,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:56,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:56,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:56,076 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:46:56,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:46:56,135 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:56,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:56,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:56,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:56,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:56,213 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:56,213 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806825209] [2021-06-16 14:46:56,213 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806825209] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:56,213 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:56,213 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-06-16 14:46:56,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308153788] [2021-06-16 14:46:56,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-16 14:46:56,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:56,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-16 14:46:56,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-06-16 14:46:56,215 INFO L87 Difference]: Start difference. First operand 7712 states and 17839 transitions. Second operand has 24 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 24 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:57,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:57,375 INFO L93 Difference]: Finished difference Result 9401 states and 21448 transitions. [2021-06-16 14:46:57,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-16 14:46:57,375 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 24 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-06-16 14:46:57,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:57,388 INFO L225 Difference]: With dead ends: 9401 [2021-06-16 14:46:57,388 INFO L226 Difference]: Without dead ends: 8683 [2021-06-16 14:46:57,389 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 975.4ms TimeCoverageRelationStatistics Valid=158, Invalid=1402, Unknown=0, NotChecked=0, Total=1560 [2021-06-16 14:46:57,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8683 states. [2021-06-16 14:46:57,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8683 to 7710. [2021-06-16 14:46:57,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7697 states have (on average 2.317136546706509) internal successors, (17835), 7709 states have internal predecessors, (17835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:57,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 17835 transitions. [2021-06-16 14:46:57,499 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 17835 transitions. Word has length 76 [2021-06-16 14:46:57,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:57,499 INFO L482 AbstractCegarLoop]: Abstraction has 7710 states and 17835 transitions. [2021-06-16 14:46:57,499 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 24 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:57,500 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 17835 transitions. [2021-06-16 14:46:57,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-06-16 14:46:57,504 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:57,504 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:46:57,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-16 14:46:57,504 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:57,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:57,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1164778990, now seen corresponding path program 2 times [2021-06-16 14:46:57,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:57,505 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765838235] [2021-06-16 14:46:57,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:57,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:57,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:57,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:46:57,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:46:57,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:46:57,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:57,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-16 14:46:57,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-16 14:46:57,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-16 14:46:57,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-06-16 14:46:57,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-06-16 14:46:57,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-06-16 14:46:57,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-06-16 14:46:57,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-16 14:46:57,787 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.6 percent of original size [2021-06-16 14:46:57,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:57,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:46:57,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-06-16 14:46:57,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-06-16 14:46:57,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:46:57,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:57,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:46:57,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:57,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:46:58,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:58,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:58,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:58,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:46:58,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:58,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:58,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:58,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:58,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:58,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:46:58,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:58,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:46:58,191 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:46:58,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:46:58,270 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:46:58,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:46:58,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:58,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:58,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:46:58,353 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:46:58,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765838235] [2021-06-16 14:46:58,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765838235] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:46:58,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:46:58,353 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-16 14:46:58,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34702408] [2021-06-16 14:46:58,354 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-16 14:46:58,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:46:58,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-16 14:46:58,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-06-16 14:46:58,355 INFO L87 Difference]: Start difference. First operand 7710 states and 17835 transitions. Second operand has 25 states, 25 states have (on average 3.04) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:59,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:46:59,691 INFO L93 Difference]: Finished difference Result 9252 states and 21106 transitions. [2021-06-16 14:46:59,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-16 14:46:59,692 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.04) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-06-16 14:46:59,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:46:59,704 INFO L225 Difference]: With dead ends: 9252 [2021-06-16 14:46:59,704 INFO L226 Difference]: Without dead ends: 8074 [2021-06-16 14:46:59,705 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1224.4ms TimeCoverageRelationStatistics Valid=172, Invalid=1468, Unknown=0, NotChecked=0, Total=1640 [2021-06-16 14:46:59,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8074 states. [2021-06-16 14:46:59,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8074 to 6273. [2021-06-16 14:46:59,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6273 states, 6264 states have (on average 2.3322158365261814) internal successors, (14609), 6272 states have internal predecessors, (14609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:59,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6273 states to 6273 states and 14609 transitions. [2021-06-16 14:46:59,805 INFO L78 Accepts]: Start accepts. Automaton has 6273 states and 14609 transitions. Word has length 76 [2021-06-16 14:46:59,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:46:59,805 INFO L482 AbstractCegarLoop]: Abstraction has 6273 states and 14609 transitions. [2021-06-16 14:46:59,805 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.04) internal successors, (76), 25 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:46:59,805 INFO L276 IsEmpty]: Start isEmpty. Operand 6273 states and 14609 transitions. [2021-06-16 14:46:59,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-06-16 14:46:59,809 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:46:59,809 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] [2021-06-16 14:46:59,809 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-16 14:46:59,809 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:46:59,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:46:59,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1232775366, now seen corresponding path program 1 times [2021-06-16 14:46:59,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:46:59,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505786594] [2021-06-16 14:46:59,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:46:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:46:59,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:59,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:46:59,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:59,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:46:59,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:59,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:46:59,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:59,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:46:59,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:59,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:46:59,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:59,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:46:59,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:59,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-16 14:46:59,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:59,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-16 14:46:59,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:59,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-16 14:46:59,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:59,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-16 14:46:59,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:46:59,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-16 14:47:00,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:00,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-16 14:47:00,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:00,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:47:00,041 INFO L142 QuantifierPusher]: treesize reduction 14, result has 71.4 percent of original size [2021-06-16 14:47:00,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:47:00,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:00,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-16 14:47:00,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:00,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:47:00,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:00,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-16 14:47:00,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:00,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:47:00,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:00,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:47:00,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:00,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:47:00,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:00,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:47:00,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:00,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:47:00,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:00,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:47:00,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:00,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:47:00,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:00,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 14:47:00,330 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:47:00,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:47:00,384 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:47:00,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:47:00,459 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:47:00,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:47:00,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:00,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:47:00,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:47:00,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:47:00,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505786594] [2021-06-16 14:47:00,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505786594] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:47:00,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:47:00,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-16 14:47:00,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62239648] [2021-06-16 14:47:00,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-16 14:47:00,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:47:00,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-16 14:47:00,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2021-06-16 14:47:00,541 INFO L87 Difference]: Start difference. First operand 6273 states and 14609 transitions. Second operand has 23 states, 23 states have (on average 3.3043478260869565) internal successors, (76), 23 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:47:01,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:47:01,851 INFO L93 Difference]: Finished difference Result 8802 states and 20199 transitions. [2021-06-16 14:47:01,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-16 14:47:01,851 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.3043478260869565) internal successors, (76), 23 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-06-16 14:47:01,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:47:01,866 INFO L225 Difference]: With dead ends: 8802 [2021-06-16 14:47:01,866 INFO L226 Difference]: Without dead ends: 8088 [2021-06-16 14:47:01,867 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1085.9ms TimeCoverageRelationStatistics Valid=150, Invalid=1256, Unknown=0, NotChecked=0, Total=1406 [2021-06-16 14:47:01,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8088 states. [2021-06-16 14:47:01,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8088 to 6273. [2021-06-16 14:47:01,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6273 states, 6264 states have (on average 2.3322158365261814) internal successors, (14609), 6272 states have internal predecessors, (14609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:47:01,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6273 states to 6273 states and 14609 transitions. [2021-06-16 14:47:01,957 INFO L78 Accepts]: Start accepts. Automaton has 6273 states and 14609 transitions. Word has length 76 [2021-06-16 14:47:01,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:47:01,957 INFO L482 AbstractCegarLoop]: Abstraction has 6273 states and 14609 transitions. [2021-06-16 14:47:01,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.3043478260869565) internal successors, (76), 23 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:47:01,957 INFO L276 IsEmpty]: Start isEmpty. Operand 6273 states and 14609 transitions. [2021-06-16 14:47:01,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-06-16 14:47:01,961 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:47:01,961 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:47:01,961 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-16 14:47:01,962 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:47:01,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:47:01,962 INFO L82 PathProgramCache]: Analyzing trace with hash -546628602, now seen corresponding path program 2 times [2021-06-16 14:47:01,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:47:01,962 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398039544] [2021-06-16 14:47:01,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:47:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:47:02,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:47:02,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:47:02,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-16 14:47:02,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-16 14:47:02,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-16 14:47:02,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-16 14:47:02,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-16 14:47:02,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:47:02,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-16 14:47:02,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-16 14:47:02,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-16 14:47:02,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-16 14:47:02,160 INFO L142 QuantifierPusher]: treesize reduction 21, result has 59.6 percent of original size [2021-06-16 14:47:02,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:47:02,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-16 14:47:02,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:47:02,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-16 14:47:02,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-16 14:47:02,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:47:02,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-16 14:47:02,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:47:02,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:47:02,316 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:47:02,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:47:02,348 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-06-16 14:47:02,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-16 14:47:02,385 INFO L142 QuantifierPusher]: treesize reduction 17, result has 91.3 percent of original size [2021-06-16 14:47:02,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-06-16 14:47:02,438 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-16 14:47:02,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-06-16 14:47:02,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:02,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:47:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:47:02,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:47:02,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398039544] [2021-06-16 14:47:02,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398039544] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:47:02,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:47:02,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-16 14:47:02,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22659658] [2021-06-16 14:47:02,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-16 14:47:02,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:47:02,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-16 14:47:02,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2021-06-16 14:47:02,500 INFO L87 Difference]: Start difference. First operand 6273 states and 14609 transitions. Second operand has 22 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 22 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:47:03,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:47:03,431 INFO L93 Difference]: Finished difference Result 4646 states and 10240 transitions. [2021-06-16 14:47:03,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-16 14:47:03,431 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 22 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-06-16 14:47:03,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:47:03,437 INFO L225 Difference]: With dead ends: 4646 [2021-06-16 14:47:03,437 INFO L226 Difference]: Without dead ends: 3932 [2021-06-16 14:47:03,437 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 786.0ms TimeCoverageRelationStatistics Valid=132, Invalid=1058, Unknown=0, NotChecked=0, Total=1190 [2021-06-16 14:47:03,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3932 states. [2021-06-16 14:47:03,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3932 to 2073. [2021-06-16 14:47:03,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 2072 states have (on average 2.2205598455598454) internal successors, (4601), 2072 states have internal predecessors, (4601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:47:03,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 4601 transitions. [2021-06-16 14:47:03,469 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 4601 transitions. Word has length 76 [2021-06-16 14:47:03,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:47:03,469 INFO L482 AbstractCegarLoop]: Abstraction has 2073 states and 4601 transitions. [2021-06-16 14:47:03,469 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 22 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:47:03,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 4601 transitions. [2021-06-16 14:47:03,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-06-16 14:47:03,471 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:47:03,471 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] [2021-06-16 14:47:03,471 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-16 14:47:03,472 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:47:03,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:47:03,472 INFO L82 PathProgramCache]: Analyzing trace with hash -264413937, now seen corresponding path program 1 times [2021-06-16 14:47:03,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:47:03,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784596745] [2021-06-16 14:47:03,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:47:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:47:03,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:03,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:47:03,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:03,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:47:03,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:03,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:47:03,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:03,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:47:03,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:03,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:47:03,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:03,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-16 14:47:03,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:03,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-16 14:47:03,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:03,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-16 14:47:03,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:03,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-16 14:47:03,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:03,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-16 14:47:03,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:03,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:47:03,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:03,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:47:03,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:03,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:47:03,652 INFO L142 QuantifierPusher]: treesize reduction 7, result has 96.9 percent of original size [2021-06-16 14:47:03,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-06-16 14:47:03,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:03,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:47:03,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:47:03,709 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:47:03,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784596745] [2021-06-16 14:47:03,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784596745] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:47:03,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:47:03,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-16 14:47:03,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455967385] [2021-06-16 14:47:03,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-16 14:47:03,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:47:03,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-16 14:47:03,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-06-16 14:47:03,710 INFO L87 Difference]: Start difference. First operand 2073 states and 4601 transitions. Second operand has 14 states, 14 states have (on average 7.857142857142857) internal successors, (110), 14 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:47:04,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 14:47:04,175 INFO L93 Difference]: Finished difference Result 2073 states and 4599 transitions. [2021-06-16 14:47:04,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-16 14:47:04,175 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.857142857142857) internal successors, (110), 14 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-06-16 14:47:04,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 14:47:04,178 INFO L225 Difference]: With dead ends: 2073 [2021-06-16 14:47:04,178 INFO L226 Difference]: Without dead ends: 2055 [2021-06-16 14:47:04,179 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 387.9ms TimeCoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2021-06-16 14:47:04,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2021-06-16 14:47:04,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 2055. [2021-06-16 14:47:04,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2055 states, 2054 states have (on average 2.2132424537487827) internal successors, (4546), 2054 states have internal predecessors, (4546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:47:04,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 4546 transitions. [2021-06-16 14:47:04,203 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 4546 transitions. Word has length 110 [2021-06-16 14:47:04,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 14:47:04,203 INFO L482 AbstractCegarLoop]: Abstraction has 2055 states and 4546 transitions. [2021-06-16 14:47:04,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 7.857142857142857) internal successors, (110), 14 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 14:47:04,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 4546 transitions. [2021-06-16 14:47:04,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-06-16 14:47:04,205 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 14:47:04,205 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 14:47:04,205 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-16 14:47:04,205 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 14:47:04,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 14:47:04,206 INFO L82 PathProgramCache]: Analyzing trace with hash 977904972, now seen corresponding path program 1 times [2021-06-16 14:47:04,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 14:47:04,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813152862] [2021-06-16 14:47:04,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 14:47:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 14:47:04,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:47:04,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 14:47:04,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:47:04,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-16 14:47:04,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-16 14:47:04,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-16 14:47:04,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-16 14:47:04,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-16 14:47:04,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-16 14:47:04,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-16 14:47:04,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-16 14:47:04,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:47:04,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:47:04,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-16 14:47:04,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 14:47:04,407 INFO L142 QuantifierPusher]: treesize reduction 7, result has 96.9 percent of original size [2021-06-16 14:47:04,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-06-16 14:47:04,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 14:47:04,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 14:47:04,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 14:47:04,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 14:47:04,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813152862] [2021-06-16 14:47:04,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813152862] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 14:47:04,461 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 14:47:04,461 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-16 14:47:04,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675919820] [2021-06-16 14:47:04,461 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-16 14:47:04,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 14:47:04,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-16 14:47:04,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-06-16 14:47:04,462 INFO L87 Difference]: Start difference. First operand 2055 states and 4546 transitions. Second operand has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)