/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788 [2021-06-01 14:44:50,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-01 14:44:50,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-01 14:44:50,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-01 14:44:50,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-01 14:44:50,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-01 14:44:50,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-01 14:44:50,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-01 14:44:50,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-01 14:44:50,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-01 14:44:50,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-01 14:44:50,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-01 14:44:50,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-01 14:44:50,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-01 14:44:50,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-01 14:44:50,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-01 14:44:50,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-01 14:44:50,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-01 14:44:50,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-01 14:44:50,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-01 14:44:50,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-01 14:44:50,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-01 14:44:50,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-01 14:44:50,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-01 14:44:50,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-01 14:44:50,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-01 14:44:50,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-01 14:44:50,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-01 14:44:50,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-01 14:44:50,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-01 14:44:50,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-01 14:44:50,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-01 14:44:50,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-01 14:44:50,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-01 14:44:50,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-01 14:44:50,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-01 14:44:50,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-01 14:44:50,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-01 14:44:50,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-01 14:44:50,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-01 14:44:50,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-01 14:44:50,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-01 14:44:50,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-01 14:44:50,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-01 14:44:50,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-01 14:44:50,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-01 14:44:50,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-01 14:44:50,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-01 14:44:50,224 INFO L138 SettingsManager]: * Use SBE=true [2021-06-01 14:44:50,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-01 14:44:50,224 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-01 14:44:50,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-01 14:44:50,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-01 14:44:50,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-01 14:44:50,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-01 14:44:50,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-01 14:44:50,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-01 14:44:50,226 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-01 14:44:50,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-01 14:44:50,226 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-01 14:44:50,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-01 14:44:50,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-01 14:44:50,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-01 14:44:50,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-01 14:44:50,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-01 14:44:50,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-01 14:44:50,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-01 14:44:50,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-01 14:44:50,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-01 14:44:50,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-01 14:44:50,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-01 14:44:50,227 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-01 14:44:50,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-01 14:44:50,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-01 14:44:50,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-01 14:44:50,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-01 14:44:50,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-01 14:44:50,519 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-01 14:44:50,520 INFO L275 PluginConnector]: CDTParser initialized [2021-06-01 14:44:50,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2021-06-01 14:44:50,568 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c731d5736/a16d6f0389a14f77962d799ac04e5ef5/FLAGa0508640a [2021-06-01 14:44:51,002 INFO L306 CDTParser]: Found 1 translation units. [2021-06-01 14:44:51,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2021-06-01 14:44:51,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c731d5736/a16d6f0389a14f77962d799ac04e5ef5/FLAGa0508640a [2021-06-01 14:44:51,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c731d5736/a16d6f0389a14f77962d799ac04e5ef5 [2021-06-01 14:44:51,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-01 14:44:51,036 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-01 14:44:51,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-01 14:44:51,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-01 14:44:51,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-01 14:44:51,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 02:44:51" (1/1) ... [2021-06-01 14:44:51,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e72b5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 02:44:51, skipping insertion in model container [2021-06-01 14:44:51,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 02:44:51" (1/1) ... [2021-06-01 14:44:51,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-01 14:44:51,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-01 14:44:51,278 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-01 14:44:51,441 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_with-uninit-problems.i[55568,55581] [2021-06-01 14:44:51,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-01 14:44:51,461 INFO L203 MainTranslator]: Completed pre-run [2021-06-01 14:44:51,473 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-01 14:44:51,483 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_with-uninit-problems.i[55568,55581] [2021-06-01 14:44:51,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-01 14:44:51,580 INFO L208 MainTranslator]: Completed translation [2021-06-01 14:44:51,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 02:44:51 WrapperNode [2021-06-01 14:44:51,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-01 14:44:51,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-01 14:44:51,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-01 14:44:51,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-01 14:44:51,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 02:44:51" (1/1) ... [2021-06-01 14:44:51,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 02:44:51" (1/1) ... [2021-06-01 14:44:51,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-01 14:44:51,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-01 14:44:51,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-01 14:44:51,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-01 14:44:51,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 02:44:51" (1/1) ... [2021-06-01 14:44:51,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 02:44:51" (1/1) ... [2021-06-01 14:44:51,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 02:44:51" (1/1) ... [2021-06-01 14:44:51,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 02:44:51" (1/1) ... [2021-06-01 14:44:51,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 02:44:51" (1/1) ... [2021-06-01 14:44:51,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 02:44:51" (1/1) ... [2021-06-01 14:44:51,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 02:44:51" (1/1) ... [2021-06-01 14:44:51,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-01 14:44:51,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-01 14:44:51,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-01 14:44:51,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-01 14:44:51,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 02:44:51" (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 [2021-06-01 14:44:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-01 14:44:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-01 14:44:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-01 14:44:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-01 14:44:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-01 14:44:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2021-06-01 14:44:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2021-06-01 14:44:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-01 14:44:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-01 14:44:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-01 14:44:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-01 14:44:51,753 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-01 14:44:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-01 14:44:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-01 14:44:51,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-06-01 14:44:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-01 14:44:51,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-01 14:44:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-01 14:44:51,757 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-01 14:44:52,118 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-01 14:44:52,118 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-06-01 14:44:52,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 02:44:52 BoogieIcfgContainer [2021-06-01 14:44:52,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-01 14:44:52,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-01 14:44:52,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-01 14:44:52,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-01 14:44:52,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.06 02:44:51" (1/3) ... [2021-06-01 14:44:52,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27638bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 02:44:52, skipping insertion in model container [2021-06-01 14:44:52,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 02:44:51" (2/3) ... [2021-06-01 14:44:52,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27638bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 02:44:52, skipping insertion in model container [2021-06-01 14:44:52,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 02:44:52" (3/3) ... [2021-06-01 14:44:52,125 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2021-06-01 14:44:52,129 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-01 14:44:52,130 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-01 14:44:52,130 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-01 14:44:52,130 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-01 14:44:52,165 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,165 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,165 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,166 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,166 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,166 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,166 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,166 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,166 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,166 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,166 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,166 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,167 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,168 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,168 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,168 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,168 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,168 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,169 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,169 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,169 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,169 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,169 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,170 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,170 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,170 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,170 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,170 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,170 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,170 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,170 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,170 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,171 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,171 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,171 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,171 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,171 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,171 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,171 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,171 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,171 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,172 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,172 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,172 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,172 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,172 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,172 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,172 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,172 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,173 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,173 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,173 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,173 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,173 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,173 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,173 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,173 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,173 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,174 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,174 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,174 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,174 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,174 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,174 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,174 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,174 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,174 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,176 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,177 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,177 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,177 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,177 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,177 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,177 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,177 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,177 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,177 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,177 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,178 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,178 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,178 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,178 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,178 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,179 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,180 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,181 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,181 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,182 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,186 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,186 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,186 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,186 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,186 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,186 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,186 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,186 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,187 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,187 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,187 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,187 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,187 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,187 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,187 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,188 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,188 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,188 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,188 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,188 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,188 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,188 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,188 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,188 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,188 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,188 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,188 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,188 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,188 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,189 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,190 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,191 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,191 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,191 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,192 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,192 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,192 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,192 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,192 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,192 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,192 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,192 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,192 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,192 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,192 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,193 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,193 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,193 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,193 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,193 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,193 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,193 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,193 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,194 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,194 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,194 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,194 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,194 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,194 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,194 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,194 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,195 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,195 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,195 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,195 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,195 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,195 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,195 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,195 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,195 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,195 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,195 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,196 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,196 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,196 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,196 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,196 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,196 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,196 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,196 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,196 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,196 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,196 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,196 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,197 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,197 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,197 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,197 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,200 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,200 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,200 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,200 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,201 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,201 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,201 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,201 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,201 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,205 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,206 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,206 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,207 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,207 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,207 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,207 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,211 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,211 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,211 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,211 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,214 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,214 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,214 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,215 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,216 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,217 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,217 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,217 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,217 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,217 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,218 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,219 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,219 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,219 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,219 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,219 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,219 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,219 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,220 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,220 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,220 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,220 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,220 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,220 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,220 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,220 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,220 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,220 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,221 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,221 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,221 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,221 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,221 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,221 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,221 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,221 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,221 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,221 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,221 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,223 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,223 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,223 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,223 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,224 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,224 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,224 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,224 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,224 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,224 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,227 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,227 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,227 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,227 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,228 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,228 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,228 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,228 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,229 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,229 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,229 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,229 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,230 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,230 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,231 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,231 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-01 14:44:52,363 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2021-06-01 14:44:52,377 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-01 14:44:52,395 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-01 14:44:52,395 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-01 14:44:52,395 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-01 14:44:52,395 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-01 14:44:52,396 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-01 14:44:52,396 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-01 14:44:52,396 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-01 14:44:52,396 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread0======== [2021-06-01 14:44:52,410 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 203 places, 285 transitions, 950 flow [2021-06-01 14:45:00,358 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 88735 states, 88729 states have (on average 4.309109761182928) internal successors, (382343), 88734 states have internal predecessors, (382343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:00,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 88735 states, 88729 states have (on average 4.309109761182928) internal successors, (382343), 88734 states have internal predecessors, (382343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:01,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-01 14:45:01,023 INFO L301 ceAbstractionStarter]: Result for error location thread0 was SAFE (1/3) [2021-06-01 14:45:01,025 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-01 14:45:01,031 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-01 14:45:01,031 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-01 14:45:01,032 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-01 14:45:01,032 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-01 14:45:01,032 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-01 14:45:01,032 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-01 14:45:01,032 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-01 14:45:01,032 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-01 14:45:01,038 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 203 places, 285 transitions, 950 flow [2021-06-01 14:45:08,947 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 88735 states, 88729 states have (on average 4.309109761182928) internal successors, (382343), 88734 states have internal predecessors, (382343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:09,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 88735 states, 88729 states have (on average 4.309109761182928) internal successors, (382343), 88734 states have internal predecessors, (382343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:09,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-01 14:45:09,061 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:45:09,062 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:45:09,062 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:45:09,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:45:09,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1057393115, now seen corresponding path program 1 times [2021-06-01 14:45:09,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:45:09,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095554962] [2021-06-01 14:45:09,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:45:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:45:09,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:45:09,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:45:09,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095554962] [2021-06-01 14:45:09,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095554962] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:45:09,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:45:09,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-01 14:45:09,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507917511] [2021-06-01 14:45:09,436 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-01 14:45:09,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:45:09,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-01 14:45:09,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-01 14:45:09,542 INFO L87 Difference]: Start difference. First operand has 88735 states, 88729 states have (on average 4.309109761182928) internal successors, (382343), 88734 states have internal predecessors, (382343), 0 states have call successors, (0), 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 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:10,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:45:10,549 INFO L93 Difference]: Finished difference Result 125143 states and 525783 transitions. [2021-06-01 14:45:10,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-01 14:45:10,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-06-01 14:45:10,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:45:11,231 INFO L225 Difference]: With dead ends: 125143 [2021-06-01 14:45:11,232 INFO L226 Difference]: Without dead ends: 58395 [2021-06-01 14:45:11,233 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-01 14:45:11,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58395 states. [2021-06-01 14:45:12,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58395 to 58395. [2021-06-01 14:45:13,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58395 states, 58392 states have (on average 4.310265104808878) internal successors, (251685), 58394 states have internal predecessors, (251685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:13,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58395 states to 58395 states and 251685 transitions. [2021-06-01 14:45:13,250 INFO L78 Accepts]: Start accepts. Automaton has 58395 states and 251685 transitions. Word has length 43 [2021-06-01 14:45:13,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:45:13,251 INFO L482 AbstractCegarLoop]: Abstraction has 58395 states and 251685 transitions. [2021-06-01 14:45:13,251 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:13,251 INFO L276 IsEmpty]: Start isEmpty. Operand 58395 states and 251685 transitions. [2021-06-01 14:45:13,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-01 14:45:13,253 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:45:13,253 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:45:13,253 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-01 14:45:13,253 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:45:13,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:45:13,254 INFO L82 PathProgramCache]: Analyzing trace with hash 635082616, now seen corresponding path program 1 times [2021-06-01 14:45:13,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:45:13,254 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508591924] [2021-06-01 14:45:13,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:45:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:45:13,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:45:13,903 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:45:13,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508591924] [2021-06-01 14:45:13,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508591924] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:45:13,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:45:13,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-01 14:45:13,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369772983] [2021-06-01 14:45:13,905 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-01 14:45:13,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:45:13,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-01 14:45:13,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-01 14:45:13,906 INFO L87 Difference]: Start difference. First operand 58395 states and 251685 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:14,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:45:14,860 INFO L93 Difference]: Finished difference Result 66911 states and 291720 transitions. [2021-06-01 14:45:14,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-01 14:45:14,860 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-01 14:45:14,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:45:15,226 INFO L225 Difference]: With dead ends: 66911 [2021-06-01 14:45:15,226 INFO L226 Difference]: Without dead ends: 66911 [2021-06-01 14:45:15,227 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 192.5ms TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-01 14:45:15,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66911 states. [2021-06-01 14:45:16,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66911 to 58422. [2021-06-01 14:45:16,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58422 states, 58419 states have (on average 4.309009055273113) internal successors, (251728), 58421 states have internal predecessors, (251728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:16,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58422 states to 58422 states and 251728 transitions. [2021-06-01 14:45:16,989 INFO L78 Accepts]: Start accepts. Automaton has 58422 states and 251728 transitions. Word has length 45 [2021-06-01 14:45:16,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:45:16,989 INFO L482 AbstractCegarLoop]: Abstraction has 58422 states and 251728 transitions. [2021-06-01 14:45:16,989 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:16,989 INFO L276 IsEmpty]: Start isEmpty. Operand 58422 states and 251728 transitions. [2021-06-01 14:45:16,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-01 14:45:16,990 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:45:16,990 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:45:16,990 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-01 14:45:16,991 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:45:16,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:45:16,991 INFO L82 PathProgramCache]: Analyzing trace with hash 520020404, now seen corresponding path program 2 times [2021-06-01 14:45:16,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:45:16,991 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971042207] [2021-06-01 14:45:16,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:45:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:45:17,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:45:17,192 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:45:17,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971042207] [2021-06-01 14:45:17,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971042207] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:45:17,192 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:45:17,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-01 14:45:17,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383479775] [2021-06-01 14:45:17,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-01 14:45:17,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:45:17,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-01 14:45:17,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-01 14:45:17,193 INFO L87 Difference]: Start difference. First operand 58422 states and 251728 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:18,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:45:18,080 INFO L93 Difference]: Finished difference Result 66936 states and 291761 transitions. [2021-06-01 14:45:18,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-01 14:45:18,080 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-01 14:45:18,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:45:18,367 INFO L225 Difference]: With dead ends: 66936 [2021-06-01 14:45:18,367 INFO L226 Difference]: Without dead ends: 66936 [2021-06-01 14:45:18,367 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 207.7ms TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-06-01 14:45:18,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66936 states. [2021-06-01 14:45:19,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66936 to 58420. [2021-06-01 14:45:19,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58420 states, 58417 states have (on average 4.309122344522998) internal successors, (251726), 58419 states have internal predecessors, (251726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:20,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58420 states to 58420 states and 251726 transitions. [2021-06-01 14:45:20,045 INFO L78 Accepts]: Start accepts. Automaton has 58420 states and 251726 transitions. Word has length 45 [2021-06-01 14:45:20,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:45:20,046 INFO L482 AbstractCegarLoop]: Abstraction has 58420 states and 251726 transitions. [2021-06-01 14:45:20,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:20,046 INFO L276 IsEmpty]: Start isEmpty. Operand 58420 states and 251726 transitions. [2021-06-01 14:45:20,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-01 14:45:20,046 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:45:20,046 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:45:20,046 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-01 14:45:20,046 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:45:20,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:45:20,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1800642158, now seen corresponding path program 3 times [2021-06-01 14:45:20,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:45:20,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172040202] [2021-06-01 14:45:20,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:45:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:45:20,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:45:20,217 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:45:20,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172040202] [2021-06-01 14:45:20,217 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172040202] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:45:20,217 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:45:20,217 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-01 14:45:20,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505992915] [2021-06-01 14:45:20,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-01 14:45:20,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:45:20,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-01 14:45:20,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-06-01 14:45:20,218 INFO L87 Difference]: Start difference. First operand 58420 states and 251726 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:21,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:45:21,476 INFO L93 Difference]: Finished difference Result 66933 states and 291758 transitions. [2021-06-01 14:45:21,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-01 14:45:21,477 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-01 14:45:21,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:45:21,681 INFO L225 Difference]: With dead ends: 66933 [2021-06-01 14:45:21,681 INFO L226 Difference]: Without dead ends: 66933 [2021-06-01 14:45:21,681 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 289.1ms TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2021-06-01 14:45:21,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66933 states. [2021-06-01 14:45:23,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66933 to 58420. [2021-06-01 14:45:23,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58420 states, 58417 states have (on average 4.309122344522998) internal successors, (251726), 58419 states have internal predecessors, (251726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:23,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58420 states to 58420 states and 251726 transitions. [2021-06-01 14:45:23,539 INFO L78 Accepts]: Start accepts. Automaton has 58420 states and 251726 transitions. Word has length 45 [2021-06-01 14:45:23,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:45:23,540 INFO L482 AbstractCegarLoop]: Abstraction has 58420 states and 251726 transitions. [2021-06-01 14:45:23,540 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:23,540 INFO L276 IsEmpty]: Start isEmpty. Operand 58420 states and 251726 transitions. [2021-06-01 14:45:23,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-01 14:45:23,540 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:45:23,540 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:45:23,540 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-01 14:45:23,541 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:45:23,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:45:23,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1122940590, now seen corresponding path program 4 times [2021-06-01 14:45:23,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:45:23,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728494376] [2021-06-01 14:45:23,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:45:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:45:23,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:45:23,739 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:45:23,739 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728494376] [2021-06-01 14:45:23,739 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728494376] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:45:23,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:45:23,740 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-01 14:45:23,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554039636] [2021-06-01 14:45:23,740 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-01 14:45:23,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:45:23,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-01 14:45:23,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-06-01 14:45:23,741 INFO L87 Difference]: Start difference. First operand 58420 states and 251726 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:24,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:45:24,816 INFO L93 Difference]: Finished difference Result 66894 states and 291684 transitions. [2021-06-01 14:45:24,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-01 14:45:24,816 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-01 14:45:24,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:45:25,012 INFO L225 Difference]: With dead ends: 66894 [2021-06-01 14:45:25,012 INFO L226 Difference]: Without dead ends: 66894 [2021-06-01 14:45:25,012 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 285.0ms TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-06-01 14:45:25,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66894 states. [2021-06-01 14:45:26,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66894 to 58347. [2021-06-01 14:45:26,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58347 states, 58345 states have (on average 4.312228982774873) internal successors, (251597), 58346 states have internal predecessors, (251597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:26,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58347 states to 58347 states and 251597 transitions. [2021-06-01 14:45:26,959 INFO L78 Accepts]: Start accepts. Automaton has 58347 states and 251597 transitions. Word has length 45 [2021-06-01 14:45:26,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:45:26,959 INFO L482 AbstractCegarLoop]: Abstraction has 58347 states and 251597 transitions. [2021-06-01 14:45:26,960 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:26,960 INFO L276 IsEmpty]: Start isEmpty. Operand 58347 states and 251597 transitions. [2021-06-01 14:45:26,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-01 14:45:26,962 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:45:26,962 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:45:26,962 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-01 14:45:26,962 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:45:26,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:45:26,963 INFO L82 PathProgramCache]: Analyzing trace with hash 913059882, now seen corresponding path program 1 times [2021-06-01 14:45:26,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:45:26,963 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610847441] [2021-06-01 14:45:26,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:45:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:45:26,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:45:26,990 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:45:26,990 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610847441] [2021-06-01 14:45:26,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610847441] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:45:26,991 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:45:26,991 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-01 14:45:26,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757995123] [2021-06-01 14:45:26,991 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-01 14:45:26,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:45:26,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-01 14:45:26,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-01 14:45:26,991 INFO L87 Difference]: Start difference. First operand 58347 states and 251597 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:27,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:45:27,926 INFO L93 Difference]: Finished difference Result 106077 states and 449265 transitions. [2021-06-01 14:45:27,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-01 14:45:27,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-06-01 14:45:27,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:45:28,177 INFO L225 Difference]: With dead ends: 106077 [2021-06-01 14:45:28,177 INFO L226 Difference]: Without dead ends: 80559 [2021-06-01 14:45:28,178 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 17.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-01 14:45:28,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80559 states. [2021-06-01 14:45:29,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80559 to 60189. [2021-06-01 14:45:29,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60189 states, 60187 states have (on average 4.185073188562314) internal successors, (251887), 60188 states have internal predecessors, (251887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:29,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60189 states to 60189 states and 251887 transitions. [2021-06-01 14:45:29,754 INFO L78 Accepts]: Start accepts. Automaton has 60189 states and 251887 transitions. Word has length 58 [2021-06-01 14:45:29,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:45:29,754 INFO L482 AbstractCegarLoop]: Abstraction has 60189 states and 251887 transitions. [2021-06-01 14:45:29,754 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:29,754 INFO L276 IsEmpty]: Start isEmpty. Operand 60189 states and 251887 transitions. [2021-06-01 14:45:29,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-01 14:45:29,765 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:45:29,765 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:45:29,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-01 14:45:29,765 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:45:29,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:45:29,765 INFO L82 PathProgramCache]: Analyzing trace with hash -656407791, now seen corresponding path program 1 times [2021-06-01 14:45:29,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:45:29,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415087081] [2021-06-01 14:45:29,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:45:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:45:29,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:45:29,944 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:45:29,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415087081] [2021-06-01 14:45:29,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415087081] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:45:29,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:45:29,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-01 14:45:29,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727681293] [2021-06-01 14:45:29,945 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-01 14:45:29,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:45:29,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-01 14:45:29,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-06-01 14:45:29,946 INFO L87 Difference]: Start difference. First operand 60189 states and 251887 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:31,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:45:31,021 INFO L93 Difference]: Finished difference Result 69158 states and 289783 transitions. [2021-06-01 14:45:31,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-01 14:45:31,022 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-01 14:45:31,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:45:31,224 INFO L225 Difference]: With dead ends: 69158 [2021-06-01 14:45:31,224 INFO L226 Difference]: Without dead ends: 69086 [2021-06-01 14:45:31,225 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 217.7ms TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-06-01 14:45:31,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69086 states. [2021-06-01 14:45:32,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69086 to 64538. [2021-06-01 14:45:32,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64538 states, 64536 states have (on average 4.210068798809966) internal successors, (271701), 64537 states have internal predecessors, (271701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:33,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64538 states to 64538 states and 271701 transitions. [2021-06-01 14:45:33,241 INFO L78 Accepts]: Start accepts. Automaton has 64538 states and 271701 transitions. Word has length 63 [2021-06-01 14:45:33,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:45:33,241 INFO L482 AbstractCegarLoop]: Abstraction has 64538 states and 271701 transitions. [2021-06-01 14:45:33,241 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:33,241 INFO L276 IsEmpty]: Start isEmpty. Operand 64538 states and 271701 transitions. [2021-06-01 14:45:33,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-01 14:45:33,254 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:45:33,254 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:45:33,255 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-01 14:45:33,255 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:45:33,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:45:33,255 INFO L82 PathProgramCache]: Analyzing trace with hash 649179835, now seen corresponding path program 2 times [2021-06-01 14:45:33,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:45:33,255 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691936020] [2021-06-01 14:45:33,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:45:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:45:33,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:45:33,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:45:33,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691936020] [2021-06-01 14:45:33,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691936020] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:45:33,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:45:33,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-01 14:45:33,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357312987] [2021-06-01 14:45:33,319 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-01 14:45:33,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:45:33,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-01 14:45:33,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-06-01 14:45:33,319 INFO L87 Difference]: Start difference. First operand 64538 states and 271701 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:33,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:45:33,891 INFO L93 Difference]: Finished difference Result 88074 states and 363236 transitions. [2021-06-01 14:45:33,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-01 14:45:33,891 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-01 14:45:33,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:45:34,537 INFO L225 Difference]: With dead ends: 88074 [2021-06-01 14:45:34,537 INFO L226 Difference]: Without dead ends: 85032 [2021-06-01 14:45:34,538 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 98.5ms TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-06-01 14:45:34,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85032 states. [2021-06-01 14:45:35,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85032 to 64274. [2021-06-01 14:45:35,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64274 states, 64272 states have (on average 4.214385735623599) internal successors, (270867), 64273 states have internal predecessors, (270867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:36,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64274 states to 64274 states and 270867 transitions. [2021-06-01 14:45:36,193 INFO L78 Accepts]: Start accepts. Automaton has 64274 states and 270867 transitions. Word has length 63 [2021-06-01 14:45:36,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:45:36,193 INFO L482 AbstractCegarLoop]: Abstraction has 64274 states and 270867 transitions. [2021-06-01 14:45:36,193 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:36,193 INFO L276 IsEmpty]: Start isEmpty. Operand 64274 states and 270867 transitions. [2021-06-01 14:45:36,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-01 14:45:36,210 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:45:36,210 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:45:36,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-01 14:45:36,210 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:45:36,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:45:36,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1880546200, now seen corresponding path program 1 times [2021-06-01 14:45:36,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:45:36,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554869178] [2021-06-01 14:45:36,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:45:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:45:36,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:45:36,251 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:45:36,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554869178] [2021-06-01 14:45:36,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554869178] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:45:36,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:45:36,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-01 14:45:36,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620455113] [2021-06-01 14:45:36,252 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-01 14:45:36,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:45:36,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-01 14:45:36,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-01 14:45:36,252 INFO L87 Difference]: Start difference. First operand 64274 states and 270867 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:37,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:45:37,370 INFO L93 Difference]: Finished difference Result 105424 states and 431849 transitions. [2021-06-01 14:45:37,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-01 14:45:37,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-06-01 14:45:37,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:45:37,591 INFO L225 Difference]: With dead ends: 105424 [2021-06-01 14:45:37,591 INFO L226 Difference]: Without dead ends: 74071 [2021-06-01 14:45:37,591 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 57.6ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-01 14:45:37,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74071 states. [2021-06-01 14:45:39,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74071 to 66493. [2021-06-01 14:45:39,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66493 states, 66492 states have (on average 4.090507128677134) internal successors, (271986), 66492 states have internal predecessors, (271986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:39,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66493 states to 66493 states and 271986 transitions. [2021-06-01 14:45:39,362 INFO L78 Accepts]: Start accepts. Automaton has 66493 states and 271986 transitions. Word has length 64 [2021-06-01 14:45:39,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:45:39,363 INFO L482 AbstractCegarLoop]: Abstraction has 66493 states and 271986 transitions. [2021-06-01 14:45:39,363 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:39,363 INFO L276 IsEmpty]: Start isEmpty. Operand 66493 states and 271986 transitions. [2021-06-01 14:45:39,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-01 14:45:39,389 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:45:39,389 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:45:39,389 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-01 14:45:39,389 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:45:39,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:45:39,389 INFO L82 PathProgramCache]: Analyzing trace with hash -2106951087, now seen corresponding path program 1 times [2021-06-01 14:45:39,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:45:39,390 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886507319] [2021-06-01 14:45:39,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:45:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:45:40,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:45:40,078 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:45:40,078 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886507319] [2021-06-01 14:45:40,078 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886507319] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:45:40,078 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:45:40,078 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-01 14:45:40,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208828136] [2021-06-01 14:45:40,078 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-01 14:45:40,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:45:40,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-01 14:45:40,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-06-01 14:45:40,079 INFO L87 Difference]: Start difference. First operand 66493 states and 271986 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:40,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:45:40,652 INFO L93 Difference]: Finished difference Result 69911 states and 283080 transitions. [2021-06-01 14:45:40,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-01 14:45:40,653 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-01 14:45:40,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:45:40,832 INFO L225 Difference]: With dead ends: 69911 [2021-06-01 14:45:40,832 INFO L226 Difference]: Without dead ends: 68849 [2021-06-01 14:45:40,832 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 272.2ms TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-06-01 14:45:41,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68849 states. [2021-06-01 14:45:42,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68849 to 66928. [2021-06-01 14:45:42,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66928 states, 66927 states have (on average 4.075948421414377) internal successors, (272791), 66927 states have internal predecessors, (272791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:43,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66928 states to 66928 states and 272791 transitions. [2021-06-01 14:45:43,102 INFO L78 Accepts]: Start accepts. Automaton has 66928 states and 272791 transitions. Word has length 66 [2021-06-01 14:45:43,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:45:43,103 INFO L482 AbstractCegarLoop]: Abstraction has 66928 states and 272791 transitions. [2021-06-01 14:45:43,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:43,103 INFO L276 IsEmpty]: Start isEmpty. Operand 66928 states and 272791 transitions. [2021-06-01 14:45:43,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-01 14:45:43,130 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:45:43,130 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:45:43,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-01 14:45:43,131 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:45:43,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:45:43,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1725149799, now seen corresponding path program 2 times [2021-06-01 14:45:43,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:45:43,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030540420] [2021-06-01 14:45:43,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:45:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:45:43,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:45:43,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:45:43,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030540420] [2021-06-01 14:45:43,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030540420] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:45:43,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:45:43,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 14:45:43,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495709879] [2021-06-01 14:45:43,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 14:45:43,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:45:43,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 14:45:43,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-01 14:45:43,439 INFO L87 Difference]: Start difference. First operand 66928 states and 272791 transitions. Second operand has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:44,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:45:44,460 INFO L93 Difference]: Finished difference Result 75416 states and 306949 transitions. [2021-06-01 14:45:44,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 14:45:44,461 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-01 14:45:44,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:45:45,003 INFO L225 Difference]: With dead ends: 75416 [2021-06-01 14:45:45,004 INFO L226 Difference]: Without dead ends: 74912 [2021-06-01 14:45:45,004 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 451.4ms TimeCoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2021-06-01 14:45:45,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74912 states. [2021-06-01 14:45:46,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74912 to 70681. [2021-06-01 14:45:46,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70681 states, 70680 states have (on average 4.0942416525183924) internal successors, (289381), 70680 states have internal predecessors, (289381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:46,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70681 states to 70681 states and 289381 transitions. [2021-06-01 14:45:46,567 INFO L78 Accepts]: Start accepts. Automaton has 70681 states and 289381 transitions. Word has length 66 [2021-06-01 14:45:46,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:45:46,567 INFO L482 AbstractCegarLoop]: Abstraction has 70681 states and 289381 transitions. [2021-06-01 14:45:46,567 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:46,567 INFO L276 IsEmpty]: Start isEmpty. Operand 70681 states and 289381 transitions. [2021-06-01 14:45:46,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-01 14:45:46,598 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:45:46,598 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:45:46,598 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-01 14:45:46,598 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:45:46,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:45:46,599 INFO L82 PathProgramCache]: Analyzing trace with hash 889663663, now seen corresponding path program 3 times [2021-06-01 14:45:46,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:45:46,599 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238576052] [2021-06-01 14:45:46,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:45:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:45:46,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:45:46,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:45:46,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238576052] [2021-06-01 14:45:46,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238576052] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:45:46,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:45:46,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 14:45:46,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310381877] [2021-06-01 14:45:46,850 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 14:45:46,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:45:46,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 14:45:46,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-01 14:45:46,851 INFO L87 Difference]: Start difference. First operand 70681 states and 289381 transitions. Second operand has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:48,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:45:48,297 INFO L93 Difference]: Finished difference Result 79143 states and 323485 transitions. [2021-06-01 14:45:48,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 14:45:48,298 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-01 14:45:48,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:45:48,537 INFO L225 Difference]: With dead ends: 79143 [2021-06-01 14:45:48,537 INFO L226 Difference]: Without dead ends: 78639 [2021-06-01 14:45:48,537 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 407.4ms TimeCoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2021-06-01 14:45:48,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78639 states. [2021-06-01 14:45:49,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78639 to 70681. [2021-06-01 14:45:50,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70681 states, 70680 states have (on average 4.0942416525183924) internal successors, (289381), 70680 states have internal predecessors, (289381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:50,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70681 states to 70681 states and 289381 transitions. [2021-06-01 14:45:50,291 INFO L78 Accepts]: Start accepts. Automaton has 70681 states and 289381 transitions. Word has length 66 [2021-06-01 14:45:50,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:45:50,291 INFO L482 AbstractCegarLoop]: Abstraction has 70681 states and 289381 transitions. [2021-06-01 14:45:50,291 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:50,291 INFO L276 IsEmpty]: Start isEmpty. Operand 70681 states and 289381 transitions. [2021-06-01 14:45:50,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-01 14:45:50,721 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:45:50,721 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:45:50,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-01 14:45:50,721 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:45:50,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:45:50,721 INFO L82 PathProgramCache]: Analyzing trace with hash -2095824755, now seen corresponding path program 4 times [2021-06-01 14:45:50,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:45:50,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379181828] [2021-06-01 14:45:50,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:45:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:45:51,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:45:51,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:45:51,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379181828] [2021-06-01 14:45:51,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379181828] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:45:51,154 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:45:51,154 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-06-01 14:45:51,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563353974] [2021-06-01 14:45:51,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-01 14:45:51,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:45:51,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-01 14:45:51,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-06-01 14:45:51,155 INFO L87 Difference]: Start difference. First operand 70681 states and 289381 transitions. Second operand has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:52,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:45:52,355 INFO L93 Difference]: Finished difference Result 84271 states and 345635 transitions. [2021-06-01 14:45:52,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-01 14:45:52,356 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-01 14:45:52,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:45:52,972 INFO L225 Difference]: With dead ends: 84271 [2021-06-01 14:45:52,972 INFO L226 Difference]: Without dead ends: 83767 [2021-06-01 14:45:52,972 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 601.7ms TimeCoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2021-06-01 14:45:53,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83767 states. [2021-06-01 14:45:54,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83767 to 70681. [2021-06-01 14:45:54,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70681 states, 70680 states have (on average 4.0942416525183924) internal successors, (289381), 70680 states have internal predecessors, (289381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:54,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70681 states to 70681 states and 289381 transitions. [2021-06-01 14:45:54,670 INFO L78 Accepts]: Start accepts. Automaton has 70681 states and 289381 transitions. Word has length 66 [2021-06-01 14:45:54,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:45:54,670 INFO L482 AbstractCegarLoop]: Abstraction has 70681 states and 289381 transitions. [2021-06-01 14:45:54,670 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:54,670 INFO L276 IsEmpty]: Start isEmpty. Operand 70681 states and 289381 transitions. [2021-06-01 14:45:54,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-01 14:45:54,701 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:45:54,701 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:45:54,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-01 14:45:54,701 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:45:54,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:45:54,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1050727221, now seen corresponding path program 5 times [2021-06-01 14:45:54,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:45:54,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83773902] [2021-06-01 14:45:54,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:45:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:45:55,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:45:55,069 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:45:55,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83773902] [2021-06-01 14:45:55,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83773902] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:45:55,069 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:45:55,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-01 14:45:55,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913012545] [2021-06-01 14:45:55,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-01 14:45:55,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:45:55,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-01 14:45:55,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2021-06-01 14:45:55,070 INFO L87 Difference]: Start difference. First operand 70681 states and 289381 transitions. Second operand has 20 states, 20 states have (on average 3.3) internal successors, (66), 20 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:56,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:45:56,812 INFO L93 Difference]: Finished difference Result 79125 states and 323446 transitions. [2021-06-01 14:45:56,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-01 14:45:56,813 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.3) internal successors, (66), 20 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-01 14:45:56,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:45:57,016 INFO L225 Difference]: With dead ends: 79125 [2021-06-01 14:45:57,016 INFO L226 Difference]: Without dead ends: 78621 [2021-06-01 14:45:57,016 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 656.0ms TimeCoverageRelationStatistics Valid=168, Invalid=1092, Unknown=0, NotChecked=0, Total=1260 [2021-06-01 14:45:57,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78621 states. [2021-06-01 14:45:58,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78621 to 70681. [2021-06-01 14:45:58,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70681 states, 70680 states have (on average 4.0942416525183924) internal successors, (289381), 70680 states have internal predecessors, (289381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:59,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70681 states to 70681 states and 289381 transitions. [2021-06-01 14:45:59,160 INFO L78 Accepts]: Start accepts. Automaton has 70681 states and 289381 transitions. Word has length 66 [2021-06-01 14:45:59,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:45:59,160 INFO L482 AbstractCegarLoop]: Abstraction has 70681 states and 289381 transitions. [2021-06-01 14:45:59,161 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.3) internal successors, (66), 20 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:45:59,161 INFO L276 IsEmpty]: Start isEmpty. Operand 70681 states and 289381 transitions. [2021-06-01 14:45:59,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-01 14:45:59,197 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:45:59,197 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:45:59,197 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-01 14:45:59,197 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:45:59,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:45:59,197 INFO L82 PathProgramCache]: Analyzing trace with hash -2140606075, now seen corresponding path program 6 times [2021-06-01 14:45:59,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:45:59,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534669380] [2021-06-01 14:45:59,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:45:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:45:59,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:45:59,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:45:59,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534669380] [2021-06-01 14:45:59,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534669380] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:45:59,506 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:45:59,506 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-01 14:45:59,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726247971] [2021-06-01 14:45:59,506 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-01 14:45:59,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:45:59,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-01 14:45:59,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-06-01 14:45:59,507 INFO L87 Difference]: Start difference. First operand 70681 states and 289381 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:00,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:00,452 INFO L93 Difference]: Finished difference Result 78824 states and 322585 transitions. [2021-06-01 14:46:00,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-01 14:46:00,452 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-01 14:46:00,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:00,710 INFO L225 Difference]: With dead ends: 78824 [2021-06-01 14:46:00,711 INFO L226 Difference]: Without dead ends: 78320 [2021-06-01 14:46:00,712 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 349.0ms TimeCoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2021-06-01 14:46:01,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78320 states. [2021-06-01 14:46:02,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78320 to 70342. [2021-06-01 14:46:02,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70342 states, 70341 states have (on average 4.1005956696663395) internal successors, (288440), 70341 states have internal predecessors, (288440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:02,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70342 states to 70342 states and 288440 transitions. [2021-06-01 14:46:02,994 INFO L78 Accepts]: Start accepts. Automaton has 70342 states and 288440 transitions. Word has length 66 [2021-06-01 14:46:02,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:46:02,994 INFO L482 AbstractCegarLoop]: Abstraction has 70342 states and 288440 transitions. [2021-06-01 14:46:02,994 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:02,994 INFO L276 IsEmpty]: Start isEmpty. Operand 70342 states and 288440 transitions. [2021-06-01 14:46:03,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-01 14:46:03,043 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:46:03,043 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:46:03,043 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-01 14:46:03,043 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:46:03,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:46:03,044 INFO L82 PathProgramCache]: Analyzing trace with hash -78659055, now seen corresponding path program 1 times [2021-06-01 14:46:03,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:46:03,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760012809] [2021-06-01 14:46:03,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:46:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:46:03,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:46:03,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:46:03,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760012809] [2021-06-01 14:46:03,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760012809] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:46:03,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:46:03,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-01 14:46:03,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685494701] [2021-06-01 14:46:03,118 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-01 14:46:03,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:46:03,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-01 14:46:03,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-06-01 14:46:03,119 INFO L87 Difference]: Start difference. First operand 70342 states and 288440 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:04,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:04,125 INFO L93 Difference]: Finished difference Result 85397 states and 345997 transitions. [2021-06-01 14:46:04,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-01 14:46:04,126 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-06-01 14:46:04,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:04,375 INFO L225 Difference]: With dead ends: 85397 [2021-06-01 14:46:04,375 INFO L226 Difference]: Without dead ends: 81219 [2021-06-01 14:46:04,375 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 126.2ms TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-06-01 14:46:04,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81219 states. [2021-06-01 14:46:05,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81219 to 69448. [2021-06-01 14:46:05,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69448 states, 69447 states have (on average 4.10232263452705) internal successors, (284894), 69447 states have internal predecessors, (284894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:06,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69448 states to 69448 states and 284894 transitions. [2021-06-01 14:46:06,083 INFO L78 Accepts]: Start accepts. Automaton has 69448 states and 284894 transitions. Word has length 69 [2021-06-01 14:46:06,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:46:06,083 INFO L482 AbstractCegarLoop]: Abstraction has 69448 states and 284894 transitions. [2021-06-01 14:46:06,084 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:06,084 INFO L276 IsEmpty]: Start isEmpty. Operand 69448 states and 284894 transitions. [2021-06-01 14:46:06,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-06-01 14:46:06,134 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:46:06,134 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:46:06,134 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-01 14:46:06,134 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:46:06,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:46:06,134 INFO L82 PathProgramCache]: Analyzing trace with hash -434188375, now seen corresponding path program 1 times [2021-06-01 14:46:06,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:46:06,135 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52848517] [2021-06-01 14:46:06,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:46:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:46:06,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:46:06,203 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:46:06,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52848517] [2021-06-01 14:46:06,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52848517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:46:06,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:46:06,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-01 14:46:06,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759492629] [2021-06-01 14:46:06,204 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-01 14:46:06,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:46:06,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-01 14:46:06,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-01 14:46:06,204 INFO L87 Difference]: Start difference. First operand 69448 states and 284894 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:07,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:07,268 INFO L93 Difference]: Finished difference Result 83375 states and 337948 transitions. [2021-06-01 14:46:07,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-01 14:46:07,268 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-06-01 14:46:07,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:07,487 INFO L225 Difference]: With dead ends: 83375 [2021-06-01 14:46:07,487 INFO L226 Difference]: Without dead ends: 76110 [2021-06-01 14:46:07,487 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 157.7ms TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-06-01 14:46:07,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76110 states. [2021-06-01 14:46:08,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76110 to 67963. [2021-06-01 14:46:08,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67963 states, 67962 states have (on average 4.104926282334246) internal successors, (278979), 67962 states have internal predecessors, (278979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:09,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67963 states to 67963 states and 278979 transitions. [2021-06-01 14:46:09,183 INFO L78 Accepts]: Start accepts. Automaton has 67963 states and 278979 transitions. Word has length 69 [2021-06-01 14:46:09,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:46:09,183 INFO L482 AbstractCegarLoop]: Abstraction has 67963 states and 278979 transitions. [2021-06-01 14:46:09,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:09,184 INFO L276 IsEmpty]: Start isEmpty. Operand 67963 states and 278979 transitions. [2021-06-01 14:46:09,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-06-01 14:46:09,244 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:46:09,244 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:46:09,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-01 14:46:09,244 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:46:09,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:46:09,245 INFO L82 PathProgramCache]: Analyzing trace with hash -513613288, now seen corresponding path program 1 times [2021-06-01 14:46:09,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:46:09,245 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067611914] [2021-06-01 14:46:09,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:46:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:46:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:46:09,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:46:09,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067611914] [2021-06-01 14:46:09,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067611914] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:46:09,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:46:09,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-01 14:46:09,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952589220] [2021-06-01 14:46:09,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-01 14:46:09,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:46:09,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-01 14:46:09,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2021-06-01 14:46:09,802 INFO L87 Difference]: Start difference. First operand 67963 states and 278979 transitions. Second operand has 22 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 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) [2021-06-01 14:46:11,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:11,842 INFO L93 Difference]: Finished difference Result 79344 states and 327032 transitions. [2021-06-01 14:46:11,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-01 14:46:11,843 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 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 [2021-06-01 14:46:11,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:12,057 INFO L225 Difference]: With dead ends: 79344 [2021-06-01 14:46:12,057 INFO L226 Difference]: Without dead ends: 78840 [2021-06-01 14:46:12,058 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1299.7ms TimeCoverageRelationStatistics Valid=211, Invalid=1429, Unknown=0, NotChecked=0, Total=1640 [2021-06-01 14:46:12,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78840 states. [2021-06-01 14:46:13,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78840 to 66498. [2021-06-01 14:46:13,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66498 states, 66497 states have (on average 4.112005052859527) internal successors, (273436), 66497 states have internal predecessors, (273436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:13,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66498 states to 66498 states and 273436 transitions. [2021-06-01 14:46:13,996 INFO L78 Accepts]: Start accepts. Automaton has 66498 states and 273436 transitions. Word has length 71 [2021-06-01 14:46:13,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:46:13,996 INFO L482 AbstractCegarLoop]: Abstraction has 66498 states and 273436 transitions. [2021-06-01 14:46:13,996 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 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) [2021-06-01 14:46:13,997 INFO L276 IsEmpty]: Start isEmpty. Operand 66498 states and 273436 transitions. [2021-06-01 14:46:14,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:46:14,067 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:46:14,067 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:46:14,067 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-01 14:46:14,067 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:46:14,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:46:14,068 INFO L82 PathProgramCache]: Analyzing trace with hash -575309955, now seen corresponding path program 1 times [2021-06-01 14:46:14,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:46:14,068 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758202520] [2021-06-01 14:46:14,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:46:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:46:14,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:46:14,277 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:46:14,277 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758202520] [2021-06-01 14:46:14,277 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758202520] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:46:14,277 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:46:14,278 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-01 14:46:14,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805421920] [2021-06-01 14:46:14,279 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-01 14:46:14,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:46:14,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-01 14:46:14,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-06-01 14:46:14,279 INFO L87 Difference]: Start difference. First operand 66498 states and 273436 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 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) [2021-06-01 14:46:14,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:14,881 INFO L93 Difference]: Finished difference Result 68492 states and 279231 transitions. [2021-06-01 14:46:14,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-01 14:46:14,881 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 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 [2021-06-01 14:46:14,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:15,401 INFO L225 Difference]: With dead ends: 68492 [2021-06-01 14:46:15,402 INFO L226 Difference]: Without dead ends: 66050 [2021-06-01 14:46:15,402 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 242.3ms TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-06-01 14:46:15,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66050 states. [2021-06-01 14:46:16,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66050 to 65106. [2021-06-01 14:46:16,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65106 states, 65105 states have (on average 4.109653636433453) internal successors, (267559), 65105 states have internal predecessors, (267559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:16,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65106 states to 65106 states and 267559 transitions. [2021-06-01 14:46:16,956 INFO L78 Accepts]: Start accepts. Automaton has 65106 states and 267559 transitions. Word has length 74 [2021-06-01 14:46:16,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:46:16,957 INFO L482 AbstractCegarLoop]: Abstraction has 65106 states and 267559 transitions. [2021-06-01 14:46:16,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 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) [2021-06-01 14:46:16,957 INFO L276 IsEmpty]: Start isEmpty. Operand 65106 states and 267559 transitions. [2021-06-01 14:46:17,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:46:17,023 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:46:17,023 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:46:17,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-01 14:46:17,023 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:46:17,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:46:17,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1735453924, now seen corresponding path program 1 times [2021-06-01 14:46:17,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:46:17,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092312027] [2021-06-01 14:46:17,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:46:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:46:17,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:46:17,232 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:46:17,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092312027] [2021-06-01 14:46:17,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092312027] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:46:17,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:46:17,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-01 14:46:17,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079102518] [2021-06-01 14:46:17,232 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-01 14:46:17,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:46:17,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-01 14:46:17,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-06-01 14:46:17,233 INFO L87 Difference]: Start difference. First operand 65106 states and 267559 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) [2021-06-01 14:46:18,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:18,532 INFO L93 Difference]: Finished difference Result 71909 states and 293647 transitions. [2021-06-01 14:46:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 14:46:18,532 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 [2021-06-01 14:46:18,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:18,735 INFO L225 Difference]: With dead ends: 71909 [2021-06-01 14:46:18,735 INFO L226 Difference]: Without dead ends: 71189 [2021-06-01 14:46:18,736 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 396.0ms TimeCoverageRelationStatistics Valid=127, Invalid=575, Unknown=0, NotChecked=0, Total=702 [2021-06-01 14:46:18,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71189 states. [2021-06-01 14:46:20,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71189 to 67573. [2021-06-01 14:46:20,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67573 states, 67572 states have (on average 4.1057242644882495) internal successors, (277432), 67572 states have internal predecessors, (277432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:20,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67573 states to 67573 states and 277432 transitions. [2021-06-01 14:46:20,363 INFO L78 Accepts]: Start accepts. Automaton has 67573 states and 277432 transitions. Word has length 74 [2021-06-01 14:46:20,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:46:20,363 INFO L482 AbstractCegarLoop]: Abstraction has 67573 states and 277432 transitions. [2021-06-01 14:46:20,363 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) [2021-06-01 14:46:20,363 INFO L276 IsEmpty]: Start isEmpty. Operand 67573 states and 277432 transitions. [2021-06-01 14:46:20,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:46:20,441 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:46:20,441 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:46:20,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-01 14:46:20,441 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:46:20,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:46:20,441 INFO L82 PathProgramCache]: Analyzing trace with hash -12043885, now seen corresponding path program 2 times [2021-06-01 14:46:20,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:46:20,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637645362] [2021-06-01 14:46:20,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:46:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:46:20,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:46:20,991 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:46:20,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637645362] [2021-06-01 14:46:20,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637645362] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:46:20,991 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:46:20,991 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 14:46:20,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251085046] [2021-06-01 14:46:20,991 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 14:46:20,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:46:20,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 14:46:20,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-06-01 14:46:20,992 INFO L87 Difference]: Start difference. First operand 67573 states and 277432 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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) [2021-06-01 14:46:21,808 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-06-01 14:46:23,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:23,104 INFO L93 Difference]: Finished difference Result 77318 states and 314259 transitions. [2021-06-01 14:46:23,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-01 14:46:23,104 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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 [2021-06-01 14:46:23,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:23,307 INFO L225 Difference]: With dead ends: 77318 [2021-06-01 14:46:23,307 INFO L226 Difference]: Without dead ends: 74876 [2021-06-01 14:46:23,307 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 1566.2ms TimeCoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2021-06-01 14:46:23,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74876 states. [2021-06-01 14:46:24,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74876 to 70091. [2021-06-01 14:46:24,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70091 states, 70090 states have (on average 4.102382650877443) internal successors, (287536), 70090 states have internal predecessors, (287536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:25,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70091 states to 70091 states and 287536 transitions. [2021-06-01 14:46:25,265 INFO L78 Accepts]: Start accepts. Automaton has 70091 states and 287536 transitions. Word has length 74 [2021-06-01 14:46:25,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:46:25,265 INFO L482 AbstractCegarLoop]: Abstraction has 70091 states and 287536 transitions. [2021-06-01 14:46:25,265 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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) [2021-06-01 14:46:25,265 INFO L276 IsEmpty]: Start isEmpty. Operand 70091 states and 287536 transitions. [2021-06-01 14:46:25,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:46:25,339 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:46:25,339 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:46:25,339 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-01 14:46:25,339 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:46:25,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:46:25,339 INFO L82 PathProgramCache]: Analyzing trace with hash 2063219768, now seen corresponding path program 2 times [2021-06-01 14:46:25,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:46:25,339 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760545404] [2021-06-01 14:46:25,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:46:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:46:25,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:46:25,597 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:46:25,597 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760545404] [2021-06-01 14:46:25,597 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760545404] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:46:25,597 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:46:25,597 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-06-01 14:46:25,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550976636] [2021-06-01 14:46:25,598 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-01 14:46:25,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:46:25,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-01 14:46:25,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-06-01 14:46:25,598 INFO L87 Difference]: Start difference. First operand 70091 states and 287536 transitions. Second operand has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 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) [2021-06-01 14:46:26,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:26,980 INFO L93 Difference]: Finished difference Result 80784 states and 328391 transitions. [2021-06-01 14:46:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 14:46:26,981 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 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 [2021-06-01 14:46:26,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:27,205 INFO L225 Difference]: With dead ends: 80784 [2021-06-01 14:46:27,205 INFO L226 Difference]: Without dead ends: 78288 [2021-06-01 14:46:27,205 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 515.3ms TimeCoverageRelationStatistics Valid=145, Invalid=785, Unknown=0, NotChecked=0, Total=930 [2021-06-01 14:46:27,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78288 states. [2021-06-01 14:46:28,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78288 to 70012. [2021-06-01 14:46:28,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70012 states, 70011 states have (on average 4.112982245647113) internal successors, (287954), 70011 states have internal predecessors, (287954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:28,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70012 states to 70012 states and 287954 transitions. [2021-06-01 14:46:28,831 INFO L78 Accepts]: Start accepts. Automaton has 70012 states and 287954 transitions. Word has length 74 [2021-06-01 14:46:28,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:46:28,831 INFO L482 AbstractCegarLoop]: Abstraction has 70012 states and 287954 transitions. [2021-06-01 14:46:28,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 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) [2021-06-01 14:46:28,831 INFO L276 IsEmpty]: Start isEmpty. Operand 70012 states and 287954 transitions. [2021-06-01 14:46:28,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:46:28,906 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:46:28,906 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:46:28,906 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-01 14:46:28,906 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:46:28,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:46:28,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1491697532, now seen corresponding path program 3 times [2021-06-01 14:46:28,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:46:28,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220295599] [2021-06-01 14:46:28,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:46:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:46:29,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:46:29,228 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:46:29,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220295599] [2021-06-01 14:46:29,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220295599] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:46:29,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:46:29,228 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 14:46:29,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076751228] [2021-06-01 14:46:29,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 14:46:29,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:46:29,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 14:46:29,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-01 14:46:29,229 INFO L87 Difference]: Start difference. First operand 70012 states and 287954 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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) [2021-06-01 14:46:30,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:30,816 INFO L93 Difference]: Finished difference Result 83475 states and 340668 transitions. [2021-06-01 14:46:30,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-01 14:46:30,817 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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 [2021-06-01 14:46:30,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:31,041 INFO L225 Difference]: With dead ends: 83475 [2021-06-01 14:46:31,041 INFO L226 Difference]: Without dead ends: 82755 [2021-06-01 14:46:31,042 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 632.0ms TimeCoverageRelationStatistics Valid=162, Invalid=894, Unknown=0, NotChecked=0, Total=1056 [2021-06-01 14:46:31,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82755 states. [2021-06-01 14:46:32,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82755 to 69409. [2021-06-01 14:46:32,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69409 states, 69408 states have (on average 4.108733863531581) internal successors, (285179), 69408 states have internal predecessors, (285179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:33,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69409 states to 69409 states and 285179 transitions. [2021-06-01 14:46:33,263 INFO L78 Accepts]: Start accepts. Automaton has 69409 states and 285179 transitions. Word has length 74 [2021-06-01 14:46:33,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:46:33,263 INFO L482 AbstractCegarLoop]: Abstraction has 69409 states and 285179 transitions. [2021-06-01 14:46:33,263 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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) [2021-06-01 14:46:33,263 INFO L276 IsEmpty]: Start isEmpty. Operand 69409 states and 285179 transitions. [2021-06-01 14:46:33,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:46:33,347 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:46:33,347 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:46:33,347 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-01 14:46:33,347 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:46:33,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:46:33,347 INFO L82 PathProgramCache]: Analyzing trace with hash 97957834, now seen corresponding path program 4 times [2021-06-01 14:46:33,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:46:33,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092762152] [2021-06-01 14:46:33,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:46:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:46:33,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:46:33,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:46:33,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092762152] [2021-06-01 14:46:33,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092762152] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:46:33,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:46:33,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-06-01 14:46:33,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138049142] [2021-06-01 14:46:33,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-01 14:46:33,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:46:33,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-01 14:46:33,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2021-06-01 14:46:33,799 INFO L87 Difference]: Start difference. First operand 69409 states and 285179 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) [2021-06-01 14:46:35,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:35,496 INFO L93 Difference]: Finished difference Result 80825 states and 329503 transitions. [2021-06-01 14:46:35,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-01 14:46:35,496 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 [2021-06-01 14:46:35,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:35,714 INFO L225 Difference]: With dead ends: 80825 [2021-06-01 14:46:35,714 INFO L226 Difference]: Without dead ends: 80105 [2021-06-01 14:46:35,714 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 815.9ms TimeCoverageRelationStatistics Valid=205, Invalid=1201, Unknown=0, NotChecked=0, Total=1406 [2021-06-01 14:46:35,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80105 states. [2021-06-01 14:46:37,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80105 to 68977. [2021-06-01 14:46:37,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68977 states, 68976 states have (on average 4.10967582927395) internal successors, (283469), 68976 states have internal predecessors, (283469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:37,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68977 states to 68977 states and 283469 transitions. [2021-06-01 14:46:37,349 INFO L78 Accepts]: Start accepts. Automaton has 68977 states and 283469 transitions. Word has length 74 [2021-06-01 14:46:37,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:46:37,349 INFO L482 AbstractCegarLoop]: Abstraction has 68977 states and 283469 transitions. [2021-06-01 14:46:37,349 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) [2021-06-01 14:46:37,349 INFO L276 IsEmpty]: Start isEmpty. Operand 68977 states and 283469 transitions. [2021-06-01 14:46:37,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:46:37,425 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:46:37,425 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:46:37,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-01 14:46:37,425 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:46:37,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:46:37,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1954461574, now seen corresponding path program 1 times [2021-06-01 14:46:37,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:46:37,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762680141] [2021-06-01 14:46:37,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:46:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:46:37,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:46:37,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:46:37,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762680141] [2021-06-01 14:46:37,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762680141] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:46:37,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:46:37,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 14:46:37,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528946573] [2021-06-01 14:46:37,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 14:46:37,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:46:37,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 14:46:37,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-06-01 14:46:37,750 INFO L87 Difference]: Start difference. First operand 68977 states and 283469 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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) [2021-06-01 14:46:39,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:39,239 INFO L93 Difference]: Finished difference Result 78762 states and 321127 transitions. [2021-06-01 14:46:39,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-01 14:46:39,239 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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 [2021-06-01 14:46:39,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:39,443 INFO L225 Difference]: With dead ends: 78762 [2021-06-01 14:46:39,443 INFO L226 Difference]: Without dead ends: 78054 [2021-06-01 14:46:39,444 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 900.8ms TimeCoverageRelationStatistics Valid=131, Invalid=799, Unknown=0, NotChecked=0, Total=930 [2021-06-01 14:46:39,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78054 states. [2021-06-01 14:46:40,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78054 to 68968. [2021-06-01 14:46:40,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68968 states, 68967 states have (on average 4.109994635115345) internal successors, (283454), 68967 states have internal predecessors, (283454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:41,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68968 states to 68968 states and 283454 transitions. [2021-06-01 14:46:41,516 INFO L78 Accepts]: Start accepts. Automaton has 68968 states and 283454 transitions. Word has length 74 [2021-06-01 14:46:41,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:46:41,516 INFO L482 AbstractCegarLoop]: Abstraction has 68968 states and 283454 transitions. [2021-06-01 14:46:41,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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) [2021-06-01 14:46:41,518 INFO L276 IsEmpty]: Start isEmpty. Operand 68968 states and 283454 transitions. [2021-06-01 14:46:41,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:46:41,607 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:46:41,607 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:46:41,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-01 14:46:41,607 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:46:41,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:46:41,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1045567012, now seen corresponding path program 2 times [2021-06-01 14:46:41,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:46:41,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996478842] [2021-06-01 14:46:41,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:46:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:46:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:46:41,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:46:41,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996478842] [2021-06-01 14:46:41,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996478842] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:46:41,919 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:46:41,919 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 14:46:41,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424812113] [2021-06-01 14:46:41,919 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 14:46:41,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:46:41,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 14:46:41,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-06-01 14:46:41,920 INFO L87 Difference]: Start difference. First operand 68968 states and 283454 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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) [2021-06-01 14:46:43,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:43,016 INFO L93 Difference]: Finished difference Result 77678 states and 317124 transitions. [2021-06-01 14:46:43,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 14:46:43,017 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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 [2021-06-01 14:46:43,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:43,590 INFO L225 Difference]: With dead ends: 77678 [2021-06-01 14:46:43,590 INFO L226 Difference]: Without dead ends: 76970 [2021-06-01 14:46:43,590 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 582.3ms TimeCoverageRelationStatistics Valid=145, Invalid=911, Unknown=0, NotChecked=0, Total=1056 [2021-06-01 14:46:43,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76970 states. [2021-06-01 14:46:44,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76970 to 68974. [2021-06-01 14:46:44,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68974 states, 68973 states have (on average 4.109912574485668) internal successors, (283473), 68973 states have internal predecessors, (283473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:45,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68974 states to 68974 states and 283473 transitions. [2021-06-01 14:46:45,122 INFO L78 Accepts]: Start accepts. Automaton has 68974 states and 283473 transitions. Word has length 74 [2021-06-01 14:46:45,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:46:45,122 INFO L482 AbstractCegarLoop]: Abstraction has 68974 states and 283473 transitions. [2021-06-01 14:46:45,122 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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) [2021-06-01 14:46:45,122 INFO L276 IsEmpty]: Start isEmpty. Operand 68974 states and 283473 transitions. [2021-06-01 14:46:45,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:46:45,199 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:46:45,199 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:46:45,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-01 14:46:45,199 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:46:45,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:46:45,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1105650750, now seen corresponding path program 3 times [2021-06-01 14:46:45,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:46:45,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748047623] [2021-06-01 14:46:45,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:46:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:46:45,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:46:45,555 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:46:45,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748047623] [2021-06-01 14:46:45,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748047623] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:46:45,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:46:45,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-01 14:46:45,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875501893] [2021-06-01 14:46:45,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-01 14:46:45,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:46:45,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-01 14:46:45,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-06-01 14:46:45,556 INFO L87 Difference]: Start difference. First operand 68974 states and 283473 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) [2021-06-01 14:46:47,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:47,022 INFO L93 Difference]: Finished difference Result 74264 states and 303530 transitions. [2021-06-01 14:46:47,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-01 14:46:47,023 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 [2021-06-01 14:46:47,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:47,224 INFO L225 Difference]: With dead ends: 74264 [2021-06-01 14:46:47,225 INFO L226 Difference]: Without dead ends: 73556 [2021-06-01 14:46:47,225 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 648.6ms TimeCoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 14:46:47,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73556 states. [2021-06-01 14:46:48,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73556 to 65518. [2021-06-01 14:46:48,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65518 states, 65517 states have (on average 4.1173283269990995) internal successors, (269755), 65517 states have internal predecessors, (269755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:48,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65518 states to 65518 states and 269755 transitions. [2021-06-01 14:46:48,827 INFO L78 Accepts]: Start accepts. Automaton has 65518 states and 269755 transitions. Word has length 74 [2021-06-01 14:46:48,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:46:48,827 INFO L482 AbstractCegarLoop]: Abstraction has 65518 states and 269755 transitions. [2021-06-01 14:46:48,827 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) [2021-06-01 14:46:48,827 INFO L276 IsEmpty]: Start isEmpty. Operand 65518 states and 269755 transitions. [2021-06-01 14:46:48,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:46:48,898 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:46:48,898 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:46:48,898 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-01 14:46:48,898 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:46:48,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:46:48,898 INFO L82 PathProgramCache]: Analyzing trace with hash -281029985, now seen corresponding path program 3 times [2021-06-01 14:46:48,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:46:48,899 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573246574] [2021-06-01 14:46:48,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:46:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:46:49,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:46:49,770 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:46:49,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573246574] [2021-06-01 14:46:49,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573246574] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:46:49,770 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:46:49,770 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 14:46:49,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72919088] [2021-06-01 14:46:49,772 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 14:46:49,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:46:49,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 14:46:49,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-01 14:46:49,772 INFO L87 Difference]: Start difference. First operand 65518 states and 269755 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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) [2021-06-01 14:46:51,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:51,580 INFO L93 Difference]: Finished difference Result 71477 states and 291197 transitions. [2021-06-01 14:46:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 14:46:51,580 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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 [2021-06-01 14:46:51,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:51,774 INFO L225 Difference]: With dead ends: 71477 [2021-06-01 14:46:51,775 INFO L226 Difference]: Without dead ends: 69035 [2021-06-01 14:46:51,775 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1644.4ms TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2021-06-01 14:46:52,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69035 states. [2021-06-01 14:46:53,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69035 to 65518. [2021-06-01 14:46:53,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65518 states, 65517 states have (on average 4.1173283269990995) internal successors, (269755), 65517 states have internal predecessors, (269755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:53,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65518 states to 65518 states and 269755 transitions. [2021-06-01 14:46:53,798 INFO L78 Accepts]: Start accepts. Automaton has 65518 states and 269755 transitions. Word has length 74 [2021-06-01 14:46:53,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:46:53,798 INFO L482 AbstractCegarLoop]: Abstraction has 65518 states and 269755 transitions. [2021-06-01 14:46:53,799 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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) [2021-06-01 14:46:53,799 INFO L276 IsEmpty]: Start isEmpty. Operand 65518 states and 269755 transitions. [2021-06-01 14:46:53,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:46:53,869 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:46:53,869 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:46:53,869 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-01 14:46:53,869 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:46:53,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:46:53,869 INFO L82 PathProgramCache]: Analyzing trace with hash 893917249, now seen corresponding path program 4 times [2021-06-01 14:46:53,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:46:53,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340004588] [2021-06-01 14:46:53,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:46:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:46:54,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:46:54,294 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:46:54,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340004588] [2021-06-01 14:46:54,294 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340004588] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:46:54,294 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:46:54,294 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 14:46:54,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550599889] [2021-06-01 14:46:54,294 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 14:46:54,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:46:54,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 14:46:54,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-01 14:46:54,295 INFO L87 Difference]: Start difference. First operand 65518 states and 269755 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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) [2021-06-01 14:46:56,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:56,099 INFO L93 Difference]: Finished difference Result 70422 states and 287229 transitions. [2021-06-01 14:46:56,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-01 14:46:56,099 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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 [2021-06-01 14:46:56,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:56,288 INFO L225 Difference]: With dead ends: 70422 [2021-06-01 14:46:56,288 INFO L226 Difference]: Without dead ends: 67980 [2021-06-01 14:46:56,288 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 1041.4ms TimeCoverageRelationStatistics Valid=193, Invalid=1289, Unknown=0, NotChecked=0, Total=1482 [2021-06-01 14:46:56,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67980 states. [2021-06-01 14:46:57,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67980 to 65518. [2021-06-01 14:46:57,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65518 states, 65517 states have (on average 4.1173283269990995) internal successors, (269755), 65517 states have internal predecessors, (269755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:46:57,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65518 states to 65518 states and 269755 transitions. [2021-06-01 14:46:57,796 INFO L78 Accepts]: Start accepts. Automaton has 65518 states and 269755 transitions. Word has length 74 [2021-06-01 14:46:57,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:46:57,796 INFO L482 AbstractCegarLoop]: Abstraction has 65518 states and 269755 transitions. [2021-06-01 14:46:57,796 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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) [2021-06-01 14:46:57,797 INFO L276 IsEmpty]: Start isEmpty. Operand 65518 states and 269755 transitions. [2021-06-01 14:46:57,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:46:57,864 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:46:57,864 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:46:57,864 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-01 14:46:57,864 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:46:57,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:46:57,865 INFO L82 PathProgramCache]: Analyzing trace with hash -750566983, now seen corresponding path program 5 times [2021-06-01 14:46:57,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:46:57,865 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107423466] [2021-06-01 14:46:57,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:46:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:46:58,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:46:58,188 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:46:58,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107423466] [2021-06-01 14:46:58,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107423466] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:46:58,188 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:46:58,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-01 14:46:58,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551351322] [2021-06-01 14:46:58,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-01 14:46:58,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:46:58,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-01 14:46:58,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-01 14:46:58,189 INFO L87 Difference]: Start difference. First operand 65518 states and 269755 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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) [2021-06-01 14:46:59,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:46:59,727 INFO L93 Difference]: Finished difference Result 71466 states and 291198 transitions. [2021-06-01 14:46:59,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-01 14:46:59,727 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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 [2021-06-01 14:46:59,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:46:59,909 INFO L225 Difference]: With dead ends: 71466 [2021-06-01 14:46:59,909 INFO L226 Difference]: Without dead ends: 69024 [2021-06-01 14:46:59,910 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 942.2ms TimeCoverageRelationStatistics Valid=151, Invalid=971, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 14:47:00,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69024 states. [2021-06-01 14:47:01,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69024 to 65518. [2021-06-01 14:47:01,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65518 states, 65517 states have (on average 4.1173283269990995) internal successors, (269755), 65517 states have internal predecessors, (269755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:01,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65518 states to 65518 states and 269755 transitions. [2021-06-01 14:47:01,490 INFO L78 Accepts]: Start accepts. Automaton has 65518 states and 269755 transitions. Word has length 74 [2021-06-01 14:47:01,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:01,490 INFO L482 AbstractCegarLoop]: Abstraction has 65518 states and 269755 transitions. [2021-06-01 14:47:01,490 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 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) [2021-06-01 14:47:01,490 INFO L276 IsEmpty]: Start isEmpty. Operand 65518 states and 269755 transitions. [2021-06-01 14:47:01,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:47:01,561 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:01,561 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:01,561 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-01 14:47:01,561 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:01,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:01,561 INFO L82 PathProgramCache]: Analyzing trace with hash 472196903, now seen corresponding path program 6 times [2021-06-01 14:47:01,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:01,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838072642] [2021-06-01 14:47:01,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:02,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:02,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:02,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838072642] [2021-06-01 14:47:02,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838072642] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:02,347 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:02,347 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-01 14:47:02,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990420574] [2021-06-01 14:47:02,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-01 14:47:02,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:02,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-01 14:47:02,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-06-01 14:47:02,348 INFO L87 Difference]: Start difference. First operand 65518 states and 269755 transitions. Second operand has 20 states, 20 states have (on average 3.7) internal successors, (74), 20 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) [2021-06-01 14:47:03,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:03,704 INFO L93 Difference]: Finished difference Result 70729 states and 288548 transitions. [2021-06-01 14:47:03,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-01 14:47:03,707 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.7) internal successors, (74), 20 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 [2021-06-01 14:47:03,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:03,891 INFO L225 Difference]: With dead ends: 70729 [2021-06-01 14:47:03,891 INFO L226 Difference]: Without dead ends: 68332 [2021-06-01 14:47:03,892 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 831.3ms TimeCoverageRelationStatistics Valid=199, Invalid=1283, Unknown=0, NotChecked=0, Total=1482 [2021-06-01 14:47:04,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68332 states. [2021-06-01 14:47:05,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68332 to 65518. [2021-06-01 14:47:05,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65518 states, 65517 states have (on average 4.1173283269990995) internal successors, (269755), 65517 states have internal predecessors, (269755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:05,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65518 states to 65518 states and 269755 transitions. [2021-06-01 14:47:05,688 INFO L78 Accepts]: Start accepts. Automaton has 65518 states and 269755 transitions. Word has length 74 [2021-06-01 14:47:05,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:05,689 INFO L482 AbstractCegarLoop]: Abstraction has 65518 states and 269755 transitions. [2021-06-01 14:47:05,689 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.7) internal successors, (74), 20 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) [2021-06-01 14:47:05,689 INFO L276 IsEmpty]: Start isEmpty. Operand 65518 states and 269755 transitions. [2021-06-01 14:47:05,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:47:05,759 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:05,760 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:05,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-01 14:47:05,760 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:05,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:05,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1234254797, now seen corresponding path program 7 times [2021-06-01 14:47:05,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:05,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496930691] [2021-06-01 14:47:05,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:06,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:06,230 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:06,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496930691] [2021-06-01 14:47:06,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496930691] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:06,230 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:06,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-01 14:47:06,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151834336] [2021-06-01 14:47:06,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-01 14:47:06,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:06,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-01 14:47:06,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-06-01 14:47:06,231 INFO L87 Difference]: Start difference. First operand 65518 states and 269755 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) [2021-06-01 14:47:08,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:08,142 INFO L93 Difference]: Finished difference Result 70234 states and 286777 transitions. [2021-06-01 14:47:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-01 14:47:08,143 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 [2021-06-01 14:47:08,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:08,334 INFO L225 Difference]: With dead ends: 70234 [2021-06-01 14:47:08,334 INFO L226 Difference]: Without dead ends: 67882 [2021-06-01 14:47:08,334 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 897.6ms TimeCoverageRelationStatistics Valid=204, Invalid=1518, Unknown=0, NotChecked=0, Total=1722 [2021-06-01 14:47:08,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67882 states. [2021-06-01 14:47:09,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67882 to 64843. [2021-06-01 14:47:09,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64843 states, 64842 states have (on average 4.109990438296166) internal successors, (266500), 64842 states have internal predecessors, (266500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:09,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64843 states to 64843 states and 266500 transitions. [2021-06-01 14:47:09,850 INFO L78 Accepts]: Start accepts. Automaton has 64843 states and 266500 transitions. Word has length 74 [2021-06-01 14:47:09,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:09,850 INFO L482 AbstractCegarLoop]: Abstraction has 64843 states and 266500 transitions. [2021-06-01 14:47:09,850 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) [2021-06-01 14:47:09,850 INFO L276 IsEmpty]: Start isEmpty. Operand 64843 states and 266500 transitions. [2021-06-01 14:47:09,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:47:09,922 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:09,922 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:09,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-01 14:47:09,922 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:09,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:09,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1983668183, now seen corresponding path program 8 times [2021-06-01 14:47:09,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:09,923 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159377360] [2021-06-01 14:47:09,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:10,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:10,145 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:10,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159377360] [2021-06-01 14:47:10,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159377360] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:10,145 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:10,145 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-01 14:47:10,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923402311] [2021-06-01 14:47:10,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-01 14:47:10,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:10,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-01 14:47:10,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-06-01 14:47:10,146 INFO L87 Difference]: Start difference. First operand 64843 states and 266500 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) [2021-06-01 14:47:11,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:11,289 INFO L93 Difference]: Finished difference Result 69741 states and 283968 transitions. [2021-06-01 14:47:11,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-01 14:47:11,289 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 [2021-06-01 14:47:11,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:11,473 INFO L225 Difference]: With dead ends: 69741 [2021-06-01 14:47:11,473 INFO L226 Difference]: Without dead ends: 67299 [2021-06-01 14:47:11,473 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 373.7ms TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2021-06-01 14:47:11,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67299 states. [2021-06-01 14:47:12,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67299 to 64843. [2021-06-01 14:47:12,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64843 states, 64842 states have (on average 4.109990438296166) internal successors, (266500), 64842 states have internal predecessors, (266500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:13,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64843 states to 64843 states and 266500 transitions. [2021-06-01 14:47:13,080 INFO L78 Accepts]: Start accepts. Automaton has 64843 states and 266500 transitions. Word has length 74 [2021-06-01 14:47:13,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:13,081 INFO L482 AbstractCegarLoop]: Abstraction has 64843 states and 266500 transitions. [2021-06-01 14:47:13,081 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) [2021-06-01 14:47:13,081 INFO L276 IsEmpty]: Start isEmpty. Operand 64843 states and 266500 transitions. [2021-06-01 14:47:13,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:47:13,151 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:13,151 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:13,151 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-01 14:47:13,151 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:13,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:13,151 INFO L82 PathProgramCache]: Analyzing trace with hash -348947791, now seen corresponding path program 9 times [2021-06-01 14:47:13,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:13,152 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988452930] [2021-06-01 14:47:13,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:13,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:13,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:13,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988452930] [2021-06-01 14:47:13,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988452930] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:13,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:13,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-01 14:47:13,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137226477] [2021-06-01 14:47:13,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-01 14:47:13,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:13,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-01 14:47:13,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-06-01 14:47:13,388 INFO L87 Difference]: Start difference. First operand 64843 states and 266500 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) [2021-06-01 14:47:14,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:14,658 INFO L93 Difference]: Finished difference Result 68861 states and 278790 transitions. [2021-06-01 14:47:14,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-01 14:47:14,659 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 [2021-06-01 14:47:14,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:14,838 INFO L225 Difference]: With dead ends: 68861 [2021-06-01 14:47:14,838 INFO L226 Difference]: Without dead ends: 66419 [2021-06-01 14:47:14,838 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 415.1ms TimeCoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2021-06-01 14:47:15,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66419 states. [2021-06-01 14:47:16,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66419 to 62864. [2021-06-01 14:47:16,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62864 states, 62863 states have (on average 4.088732640822105) internal successors, (257030), 62863 states have internal predecessors, (257030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:16,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62864 states to 62864 states and 257030 transitions. [2021-06-01 14:47:16,376 INFO L78 Accepts]: Start accepts. Automaton has 62864 states and 257030 transitions. Word has length 74 [2021-06-01 14:47:16,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:16,377 INFO L482 AbstractCegarLoop]: Abstraction has 62864 states and 257030 transitions. [2021-06-01 14:47:16,377 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) [2021-06-01 14:47:16,377 INFO L276 IsEmpty]: Start isEmpty. Operand 62864 states and 257030 transitions. [2021-06-01 14:47:16,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-01 14:47:16,445 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:16,445 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:16,445 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-01 14:47:16,445 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:16,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:16,445 INFO L82 PathProgramCache]: Analyzing trace with hash 481364362, now seen corresponding path program 5 times [2021-06-01 14:47:16,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:16,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449149686] [2021-06-01 14:47:16,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:16,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:16,617 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:16,617 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449149686] [2021-06-01 14:47:16,617 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449149686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:16,617 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:16,617 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-01 14:47:16,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589203489] [2021-06-01 14:47:16,617 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-01 14:47:16,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:16,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-01 14:47:16,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-06-01 14:47:16,618 INFO L87 Difference]: Start difference. First operand 62864 states and 257030 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) [2021-06-01 14:47:17,097 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-06-01 14:47:17,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:17,654 INFO L93 Difference]: Finished difference Result 63082 states and 256575 transitions. [2021-06-01 14:47:17,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-01 14:47:17,655 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 [2021-06-01 14:47:17,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:17,818 INFO L225 Difference]: With dead ends: 63082 [2021-06-01 14:47:17,818 INFO L226 Difference]: Without dead ends: 60586 [2021-06-01 14:47:17,818 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 619.7ms TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2021-06-01 14:47:18,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60586 states. [2021-06-01 14:47:19,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60586 to 58100. [2021-06-01 14:47:19,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58100 states, 58099 states have (on average 4.112549269350591) internal successors, (238935), 58099 states have internal predecessors, (238935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:19,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58100 states to 58100 states and 238935 transitions. [2021-06-01 14:47:19,307 INFO L78 Accepts]: Start accepts. Automaton has 58100 states and 238935 transitions. Word has length 74 [2021-06-01 14:47:19,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:19,308 INFO L482 AbstractCegarLoop]: Abstraction has 58100 states and 238935 transitions. [2021-06-01 14:47:19,308 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) [2021-06-01 14:47:19,308 INFO L276 IsEmpty]: Start isEmpty. Operand 58100 states and 238935 transitions. [2021-06-01 14:47:19,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-01 14:47:19,372 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:19,372 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:19,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-01 14:47:19,372 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:19,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:19,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1416290637, now seen corresponding path program 1 times [2021-06-01 14:47:19,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:19,372 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615687987] [2021-06-01 14:47:19,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:19,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:19,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:19,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615687987] [2021-06-01 14:47:19,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615687987] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:19,480 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:19,480 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-01 14:47:19,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785432498] [2021-06-01 14:47:19,480 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-01 14:47:19,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:19,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-01 14:47:19,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-06-01 14:47:19,481 INFO L87 Difference]: Start difference. First operand 58100 states and 238935 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:20,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:20,357 INFO L93 Difference]: Finished difference Result 68834 states and 279215 transitions. [2021-06-01 14:47:20,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-01 14:47:20,357 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-06-01 14:47:20,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:20,522 INFO L225 Difference]: With dead ends: 68834 [2021-06-01 14:47:20,522 INFO L226 Difference]: Without dead ends: 56513 [2021-06-01 14:47:20,523 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 206.0ms TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2021-06-01 14:47:20,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56513 states. [2021-06-01 14:47:21,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56513 to 49781. [2021-06-01 14:47:21,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49781 states, 49780 states have (on average 4.071032543190036) internal successors, (202656), 49780 states have internal predecessors, (202656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:21,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49781 states to 49781 states and 202656 transitions. [2021-06-01 14:47:21,951 INFO L78 Accepts]: Start accepts. Automaton has 49781 states and 202656 transitions. Word has length 75 [2021-06-01 14:47:21,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:21,951 INFO L482 AbstractCegarLoop]: Abstraction has 49781 states and 202656 transitions. [2021-06-01 14:47:21,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:21,951 INFO L276 IsEmpty]: Start isEmpty. Operand 49781 states and 202656 transitions. [2021-06-01 14:47:22,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-01 14:47:22,007 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:22,007 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:22,007 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-01 14:47:22,007 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:22,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:22,008 INFO L82 PathProgramCache]: Analyzing trace with hash 231134509, now seen corresponding path program 1 times [2021-06-01 14:47:22,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:22,008 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675388690] [2021-06-01 14:47:22,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:22,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:22,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:22,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675388690] [2021-06-01 14:47:22,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675388690] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:22,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:22,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-01 14:47:22,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510957368] [2021-06-01 14:47:22,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-01 14:47:22,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:22,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-01 14:47:22,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-01 14:47:22,085 INFO L87 Difference]: Start difference. First operand 49781 states and 202656 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:22,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:22,594 INFO L93 Difference]: Finished difference Result 63188 states and 255322 transitions. [2021-06-01 14:47:22,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-01 14:47:22,594 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-06-01 14:47:22,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:22,743 INFO L225 Difference]: With dead ends: 63188 [2021-06-01 14:47:22,743 INFO L226 Difference]: Without dead ends: 53153 [2021-06-01 14:47:22,744 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 143.5ms TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-06-01 14:47:23,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53153 states. [2021-06-01 14:47:23,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53153 to 45767. [2021-06-01 14:47:23,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45767 states, 45766 states have (on average 4.058362102871127) internal successors, (185735), 45766 states have internal predecessors, (185735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:24,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45767 states to 45767 states and 185735 transitions. [2021-06-01 14:47:24,001 INFO L78 Accepts]: Start accepts. Automaton has 45767 states and 185735 transitions. Word has length 75 [2021-06-01 14:47:24,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:24,001 INFO L482 AbstractCegarLoop]: Abstraction has 45767 states and 185735 transitions. [2021-06-01 14:47:24,002 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:24,002 INFO L276 IsEmpty]: Start isEmpty. Operand 45767 states and 185735 transitions. [2021-06-01 14:47:24,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-01 14:47:24,051 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:24,051 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:24,051 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-01 14:47:24,052 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:24,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:24,052 INFO L82 PathProgramCache]: Analyzing trace with hash 958266511, now seen corresponding path program 2 times [2021-06-01 14:47:24,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:24,052 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248347536] [2021-06-01 14:47:24,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:24,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:24,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:24,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248347536] [2021-06-01 14:47:24,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248347536] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:24,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:24,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-06-01 14:47:24,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926455953] [2021-06-01 14:47:24,137 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-01 14:47:24,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:24,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-01 14:47:24,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-06-01 14:47:24,137 INFO L87 Difference]: Start difference. First operand 45767 states and 185735 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:24,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:24,970 INFO L93 Difference]: Finished difference Result 51725 states and 208645 transitions. [2021-06-01 14:47:24,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-01 14:47:24,970 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-06-01 14:47:24,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:25,080 INFO L225 Difference]: With dead ends: 51725 [2021-06-01 14:47:25,080 INFO L226 Difference]: Without dead ends: 45335 [2021-06-01 14:47:25,080 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 221.7ms TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2021-06-01 14:47:25,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45335 states. [2021-06-01 14:47:26,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45335 to 42692. [2021-06-01 14:47:26,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42692 states, 42691 states have (on average 4.06488487034738) internal successors, (173534), 42691 states have internal predecessors, (173534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:26,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42692 states to 42692 states and 173534 transitions. [2021-06-01 14:47:26,201 INFO L78 Accepts]: Start accepts. Automaton has 42692 states and 173534 transitions. Word has length 75 [2021-06-01 14:47:26,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:26,201 INFO L482 AbstractCegarLoop]: Abstraction has 42692 states and 173534 transitions. [2021-06-01 14:47:26,202 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:26,202 INFO L276 IsEmpty]: Start isEmpty. Operand 42692 states and 173534 transitions. [2021-06-01 14:47:26,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-06-01 14:47:26,255 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:26,256 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:26,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-01 14:47:26,256 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:26,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:26,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1889635442, now seen corresponding path program 1 times [2021-06-01 14:47:26,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:26,256 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066375195] [2021-06-01 14:47:26,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:27,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:27,035 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:27,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066375195] [2021-06-01 14:47:27,035 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066375195] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:27,035 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:27,035 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-01 14:47:27,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818187330] [2021-06-01 14:47:27,035 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-01 14:47:27,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:27,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-01 14:47:27,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-06-01 14:47:27,036 INFO L87 Difference]: Start difference. First operand 42692 states and 173534 transitions. Second operand has 26 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 26 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:29,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:29,811 INFO L93 Difference]: Finished difference Result 56509 states and 230317 transitions. [2021-06-01 14:47:29,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 14:47:29,812 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 26 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-06-01 14:47:29,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:29,960 INFO L225 Difference]: With dead ends: 56509 [2021-06-01 14:47:29,961 INFO L226 Difference]: Without dead ends: 55111 [2021-06-01 14:47:29,961 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 1971.6ms TimeCoverageRelationStatistics Valid=255, Invalid=2295, Unknown=0, NotChecked=0, Total=2550 [2021-06-01 14:47:30,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55111 states. [2021-06-01 14:47:30,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55111 to 48038. [2021-06-01 14:47:30,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48038 states, 48037 states have (on average 4.131440348065033) internal successors, (198462), 48037 states have internal predecessors, (198462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:31,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48038 states to 48038 states and 198462 transitions. [2021-06-01 14:47:31,081 INFO L78 Accepts]: Start accepts. Automaton has 48038 states and 198462 transitions. Word has length 77 [2021-06-01 14:47:31,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:31,082 INFO L482 AbstractCegarLoop]: Abstraction has 48038 states and 198462 transitions. [2021-06-01 14:47:31,082 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 26 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:31,085 INFO L276 IsEmpty]: Start isEmpty. Operand 48038 states and 198462 transitions. [2021-06-01 14:47:31,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-06-01 14:47:31,143 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:31,144 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:31,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-01 14:47:31,144 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:31,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:31,144 INFO L82 PathProgramCache]: Analyzing trace with hash 647165310, now seen corresponding path program 2 times [2021-06-01 14:47:31,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:31,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123619943] [2021-06-01 14:47:31,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:31,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:31,679 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:31,679 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123619943] [2021-06-01 14:47:31,679 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123619943] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:31,679 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:31,679 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-06-01 14:47:31,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303027357] [2021-06-01 14:47:31,679 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-01 14:47:31,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:31,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-01 14:47:31,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-06-01 14:47:31,680 INFO L87 Difference]: Start difference. First operand 48038 states and 198462 transitions. Second operand has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:33,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:33,312 INFO L93 Difference]: Finished difference Result 44303 states and 180392 transitions. [2021-06-01 14:47:33,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-01 14:47:33,312 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-06-01 14:47:33,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:33,424 INFO L225 Difference]: With dead ends: 44303 [2021-06-01 14:47:33,424 INFO L226 Difference]: Without dead ends: 43043 [2021-06-01 14:47:33,425 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 1023.2ms TimeCoverageRelationStatistics Valid=237, Invalid=1569, Unknown=0, NotChecked=0, Total=1806 [2021-06-01 14:47:33,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43043 states. [2021-06-01 14:47:34,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43043 to 33407. [2021-06-01 14:47:34,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33407 states, 33406 states have (on average 4.022061905046997) internal successors, (134361), 33406 states have internal predecessors, (134361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:34,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33407 states to 33407 states and 134361 transitions. [2021-06-01 14:47:34,315 INFO L78 Accepts]: Start accepts. Automaton has 33407 states and 134361 transitions. Word has length 77 [2021-06-01 14:47:34,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:34,315 INFO L482 AbstractCegarLoop]: Abstraction has 33407 states and 134361 transitions. [2021-06-01 14:47:34,316 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:34,316 INFO L276 IsEmpty]: Start isEmpty. Operand 33407 states and 134361 transitions. [2021-06-01 14:47:34,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-06-01 14:47:34,360 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:34,360 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:34,361 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-01 14:47:34,361 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:34,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:34,361 INFO L82 PathProgramCache]: Analyzing trace with hash 459490309, now seen corresponding path program 1 times [2021-06-01 14:47:34,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:34,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713693713] [2021-06-01 14:47:34,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:35,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:35,158 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:35,158 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713693713] [2021-06-01 14:47:35,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713693713] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:35,158 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:35,158 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-01 14:47:35,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014450082] [2021-06-01 14:47:35,158 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-01 14:47:35,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:35,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-01 14:47:35,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-06-01 14:47:35,159 INFO L87 Difference]: Start difference. First operand 33407 states and 134361 transitions. Second operand has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:36,139 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2021-06-01 14:47:37,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:37,651 INFO L93 Difference]: Finished difference Result 29773 states and 118565 transitions. [2021-06-01 14:47:37,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-01 14:47:37,651 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-06-01 14:47:37,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:37,718 INFO L225 Difference]: With dead ends: 29773 [2021-06-01 14:47:37,718 INFO L226 Difference]: Without dead ends: 27685 [2021-06-01 14:47:37,718 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 1975.0ms TimeCoverageRelationStatistics Valid=264, Invalid=2286, Unknown=0, NotChecked=0, Total=2550 [2021-06-01 14:47:37,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27685 states. [2021-06-01 14:47:38,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27685 to 25523. [2021-06-01 14:47:38,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25523 states, 25522 states have (on average 3.9933390800094037) internal successors, (101918), 25522 states have internal predecessors, (101918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:38,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25523 states to 25523 states and 101918 transitions. [2021-06-01 14:47:38,417 INFO L78 Accepts]: Start accepts. Automaton has 25523 states and 101918 transitions. Word has length 79 [2021-06-01 14:47:38,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:38,417 INFO L482 AbstractCegarLoop]: Abstraction has 25523 states and 101918 transitions. [2021-06-01 14:47:38,417 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:38,417 INFO L276 IsEmpty]: Start isEmpty. Operand 25523 states and 101918 transitions. [2021-06-01 14:47:38,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-06-01 14:47:38,450 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:38,450 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:38,450 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-01 14:47:38,450 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:38,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:38,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1780660894, now seen corresponding path program 1 times [2021-06-01 14:47:38,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:38,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792041046] [2021-06-01 14:47:38,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:39,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:39,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:39,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792041046] [2021-06-01 14:47:39,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792041046] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:39,246 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:39,246 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-01 14:47:39,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750255119] [2021-06-01 14:47:39,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-01 14:47:39,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:39,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-01 14:47:39,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-06-01 14:47:39,247 INFO L87 Difference]: Start difference. First operand 25523 states and 101918 transitions. Second operand has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:41,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:41,787 INFO L93 Difference]: Finished difference Result 34270 states and 136437 transitions. [2021-06-01 14:47:41,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-06-01 14:47:41,787 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-06-01 14:47:41,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:41,860 INFO L225 Difference]: With dead ends: 34270 [2021-06-01 14:47:41,860 INFO L226 Difference]: Without dead ends: 30232 [2021-06-01 14:47:41,861 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 1808.4ms TimeCoverageRelationStatistics Valid=254, Invalid=2296, Unknown=0, NotChecked=0, Total=2550 [2021-06-01 14:47:41,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30232 states. [2021-06-01 14:47:42,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30232 to 26090. [2021-06-01 14:47:42,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26090 states, 26089 states have (on average 4.030625934301813) internal successors, (105155), 26089 states have internal predecessors, (105155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:42,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26090 states to 26090 states and 105155 transitions. [2021-06-01 14:47:42,402 INFO L78 Accepts]: Start accepts. Automaton has 26090 states and 105155 transitions. Word has length 79 [2021-06-01 14:47:42,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:42,402 INFO L482 AbstractCegarLoop]: Abstraction has 26090 states and 105155 transitions. [2021-06-01 14:47:42,402 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:42,402 INFO L276 IsEmpty]: Start isEmpty. Operand 26090 states and 105155 transitions. [2021-06-01 14:47:42,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-06-01 14:47:42,437 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:42,437 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:42,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-01 14:47:42,437 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:42,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:42,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1577980420, now seen corresponding path program 2 times [2021-06-01 14:47:42,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:42,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180909849] [2021-06-01 14:47:42,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:43,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:43,245 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:43,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180909849] [2021-06-01 14:47:43,245 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180909849] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:43,245 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:43,245 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-01 14:47:43,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261988305] [2021-06-01 14:47:43,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-01 14:47:43,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:43,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-01 14:47:43,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-06-01 14:47:43,246 INFO L87 Difference]: Start difference. First operand 26090 states and 105155 transitions. Second operand has 25 states, 25 states have (on average 3.16) internal successors, (79), 25 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:44,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:44,741 INFO L93 Difference]: Finished difference Result 25967 states and 103470 transitions. [2021-06-01 14:47:44,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-01 14:47:44,742 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.16) internal successors, (79), 25 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-06-01 14:47:44,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:44,788 INFO L225 Difference]: With dead ends: 25967 [2021-06-01 14:47:44,789 INFO L226 Difference]: Without dead ends: 21515 [2021-06-01 14:47:44,789 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 1293.7ms TimeCoverageRelationStatistics Valid=229, Invalid=1663, Unknown=0, NotChecked=0, Total=1892 [2021-06-01 14:47:44,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21515 states. [2021-06-01 14:47:45,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21515 to 17789. [2021-06-01 14:47:45,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17789 states, 17788 states have (on average 3.902912075556555) internal successors, (69425), 17788 states have internal predecessors, (69425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:45,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17789 states to 17789 states and 69425 transitions. [2021-06-01 14:47:45,226 INFO L78 Accepts]: Start accepts. Automaton has 17789 states and 69425 transitions. Word has length 79 [2021-06-01 14:47:45,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:45,227 INFO L482 AbstractCegarLoop]: Abstraction has 17789 states and 69425 transitions. [2021-06-01 14:47:45,227 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.16) internal successors, (79), 25 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:45,227 INFO L276 IsEmpty]: Start isEmpty. Operand 17789 states and 69425 transitions. [2021-06-01 14:47:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-01 14:47:45,249 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:45,249 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:45,249 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-01 14:47:45,249 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:45,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:45,250 INFO L82 PathProgramCache]: Analyzing trace with hash 852374811, now seen corresponding path program 1 times [2021-06-01 14:47:45,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:45,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463513912] [2021-06-01 14:47:45,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:45,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:45,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:45,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463513912] [2021-06-01 14:47:45,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463513912] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:45,468 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:45,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-01 14:47:45,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243165884] [2021-06-01 14:47:45,469 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-01 14:47:45,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:45,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-01 14:47:45,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-06-01 14:47:45,469 INFO L87 Difference]: Start difference. First operand 17789 states and 69425 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:45,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:45,806 INFO L93 Difference]: Finished difference Result 19726 states and 75766 transitions. [2021-06-01 14:47:45,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-01 14:47:45,806 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-01 14:47:45,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:45,846 INFO L225 Difference]: With dead ends: 19726 [2021-06-01 14:47:45,846 INFO L226 Difference]: Without dead ends: 17781 [2021-06-01 14:47:45,846 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 254.0ms TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-06-01 14:47:45,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17781 states. [2021-06-01 14:47:46,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17781 to 17781. [2021-06-01 14:47:46,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.9037682789651296) internal successors, (69409), 17780 states have internal predecessors, (69409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:46,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69409 transitions. [2021-06-01 14:47:46,152 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69409 transitions. Word has length 80 [2021-06-01 14:47:46,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:46,152 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69409 transitions. [2021-06-01 14:47:46,152 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:46,152 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69409 transitions. [2021-06-01 14:47:46,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-01 14:47:46,175 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:46,175 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:46,175 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-01 14:47:46,175 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:46,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:46,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1670418097, now seen corresponding path program 2 times [2021-06-01 14:47:46,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:46,175 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187868455] [2021-06-01 14:47:46,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:46,725 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-06-01 14:47:46,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:46,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:46,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187868455] [2021-06-01 14:47:46,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187868455] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:46,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:46,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-01 14:47:46,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523095043] [2021-06-01 14:47:46,855 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-01 14:47:46,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:46,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-01 14:47:46,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2021-06-01 14:47:46,856 INFO L87 Difference]: Start difference. First operand 17781 states and 69409 transitions. Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:47,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:47,973 INFO L93 Difference]: Finished difference Result 19688 states and 75704 transitions. [2021-06-01 14:47:47,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-01 14:47:47,973 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-01 14:47:47,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:48,013 INFO L225 Difference]: With dead ends: 19688 [2021-06-01 14:47:48,013 INFO L226 Difference]: Without dead ends: 17781 [2021-06-01 14:47:48,013 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1044.4ms TimeCoverageRelationStatistics Valid=150, Invalid=1182, Unknown=0, NotChecked=0, Total=1332 [2021-06-01 14:47:48,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17781 states. [2021-06-01 14:47:48,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17781 to 17781. [2021-06-01 14:47:48,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.903487064116985) internal successors, (69404), 17780 states have internal predecessors, (69404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:48,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69404 transitions. [2021-06-01 14:47:48,330 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69404 transitions. Word has length 80 [2021-06-01 14:47:48,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:48,330 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69404 transitions. [2021-06-01 14:47:48,330 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:48,330 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69404 transitions. [2021-06-01 14:47:48,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-01 14:47:48,354 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:48,354 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:48,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-01 14:47:48,354 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:48,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:48,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1383870141, now seen corresponding path program 3 times [2021-06-01 14:47:48,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:48,354 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366384824] [2021-06-01 14:47:48,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:49,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:49,030 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:49,030 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366384824] [2021-06-01 14:47:49,030 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366384824] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:49,030 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:49,030 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-01 14:47:49,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330612825] [2021-06-01 14:47:49,030 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-01 14:47:49,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:49,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-01 14:47:49,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-06-01 14:47:49,030 INFO L87 Difference]: Start difference. First operand 17781 states and 69404 transitions. Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:50,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:50,054 INFO L93 Difference]: Finished difference Result 19677 states and 75680 transitions. [2021-06-01 14:47:50,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-01 14:47:50,054 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-01 14:47:50,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:50,093 INFO L225 Difference]: With dead ends: 19677 [2021-06-01 14:47:50,093 INFO L226 Difference]: Without dead ends: 17781 [2021-06-01 14:47:50,094 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 937.5ms TimeCoverageRelationStatistics Valid=159, Invalid=1173, Unknown=0, NotChecked=0, Total=1332 [2021-06-01 14:47:50,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17781 states. [2021-06-01 14:47:50,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17781 to 17781. [2021-06-01 14:47:50,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.90326209223847) internal successors, (69400), 17780 states have internal predecessors, (69400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:50,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69400 transitions. [2021-06-01 14:47:50,411 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69400 transitions. Word has length 80 [2021-06-01 14:47:50,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:50,411 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69400 transitions. [2021-06-01 14:47:50,411 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:50,411 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69400 transitions. [2021-06-01 14:47:50,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-01 14:47:50,435 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:50,435 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:50,435 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-01 14:47:50,435 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:50,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:50,436 INFO L82 PathProgramCache]: Analyzing trace with hash 2049848031, now seen corresponding path program 4 times [2021-06-01 14:47:50,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:50,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77731419] [2021-06-01 14:47:50,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:51,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:51,023 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:51,024 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77731419] [2021-06-01 14:47:51,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77731419] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:51,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:51,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-01 14:47:51,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80455379] [2021-06-01 14:47:51,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-01 14:47:51,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:51,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-01 14:47:51,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-06-01 14:47:51,024 INFO L87 Difference]: Start difference. First operand 17781 states and 69400 transitions. Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:52,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:52,530 INFO L93 Difference]: Finished difference Result 19717 states and 75740 transitions. [2021-06-01 14:47:52,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-01 14:47:52,530 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-01 14:47:52,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:52,572 INFO L225 Difference]: With dead ends: 19717 [2021-06-01 14:47:52,572 INFO L226 Difference]: Without dead ends: 17831 [2021-06-01 14:47:52,572 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1419.8ms TimeCoverageRelationStatistics Valid=226, Invalid=1666, Unknown=0, NotChecked=0, Total=1892 [2021-06-01 14:47:52,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17831 states. [2021-06-01 14:47:52,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17831 to 17781. [2021-06-01 14:47:52,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.9031496062992126) internal successors, (69398), 17780 states have internal predecessors, (69398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:52,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69398 transitions. [2021-06-01 14:47:52,889 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69398 transitions. Word has length 80 [2021-06-01 14:47:52,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:52,889 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69398 transitions. [2021-06-01 14:47:52,889 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:52,889 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69398 transitions. [2021-06-01 14:47:52,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-01 14:47:52,912 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:52,912 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:52,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-01 14:47:52,913 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:52,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:52,913 INFO L82 PathProgramCache]: Analyzing trace with hash 458383959, now seen corresponding path program 5 times [2021-06-01 14:47:52,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:52,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089296041] [2021-06-01 14:47:52,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:53,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:53,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:53,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089296041] [2021-06-01 14:47:53,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089296041] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:53,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:53,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-01 14:47:53,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626853080] [2021-06-01 14:47:53,354 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-01 14:47:53,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:53,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-01 14:47:53,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-06-01 14:47:53,355 INFO L87 Difference]: Start difference. First operand 17781 states and 69398 transitions. Second operand has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:54,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:54,249 INFO L93 Difference]: Finished difference Result 19662 states and 75647 transitions. [2021-06-01 14:47:54,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-01 14:47:54,250 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-01 14:47:54,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:54,289 INFO L225 Difference]: With dead ends: 19662 [2021-06-01 14:47:54,289 INFO L226 Difference]: Without dead ends: 17781 [2021-06-01 14:47:54,289 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 733.8ms TimeCoverageRelationStatistics Valid=145, Invalid=1045, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 14:47:54,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17781 states. [2021-06-01 14:47:54,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17781 to 17781. [2021-06-01 14:47:54,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.9021372328458943) internal successors, (69380), 17780 states have internal predecessors, (69380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:54,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69380 transitions. [2021-06-01 14:47:54,597 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69380 transitions. Word has length 80 [2021-06-01 14:47:54,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:54,597 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69380 transitions. [2021-06-01 14:47:54,597 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:54,598 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69380 transitions. [2021-06-01 14:47:54,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-01 14:47:54,621 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:54,621 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:54,621 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-01 14:47:54,621 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:54,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:54,621 INFO L82 PathProgramCache]: Analyzing trace with hash 627178821, now seen corresponding path program 6 times [2021-06-01 14:47:54,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:54,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521979228] [2021-06-01 14:47:54,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:55,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:55,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:55,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521979228] [2021-06-01 14:47:55,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521979228] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:55,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:55,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-06-01 14:47:55,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131978762] [2021-06-01 14:47:55,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-01 14:47:55,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:55,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-01 14:47:55,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-06-01 14:47:55,081 INFO L87 Difference]: Start difference. First operand 17781 states and 69380 transitions. Second operand has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:56,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:56,287 INFO L93 Difference]: Finished difference Result 19649 states and 75620 transitions. [2021-06-01 14:47:56,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-01 14:47:56,288 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-01 14:47:56,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:56,328 INFO L225 Difference]: With dead ends: 19649 [2021-06-01 14:47:56,328 INFO L226 Difference]: Without dead ends: 17813 [2021-06-01 14:47:56,329 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 941.1ms TimeCoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2021-06-01 14:47:56,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17813 states. [2021-06-01 14:47:56,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17813 to 17781. [2021-06-01 14:47:56,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.900337457817773) internal successors, (69348), 17780 states have internal predecessors, (69348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:56,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69348 transitions. [2021-06-01 14:47:56,645 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69348 transitions. Word has length 80 [2021-06-01 14:47:56,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:56,645 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69348 transitions. [2021-06-01 14:47:56,645 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:56,645 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69348 transitions. [2021-06-01 14:47:56,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-01 14:47:56,668 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:56,668 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:56,668 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-01 14:47:56,668 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:56,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:56,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1024857715, now seen corresponding path program 7 times [2021-06-01 14:47:56,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:56,668 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503516584] [2021-06-01 14:47:56,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:57,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:57,204 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:57,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503516584] [2021-06-01 14:47:57,204 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503516584] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:57,204 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:57,204 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-01 14:47:57,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983745747] [2021-06-01 14:47:57,204 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-01 14:47:57,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:57,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-01 14:47:57,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-06-01 14:47:57,205 INFO L87 Difference]: Start difference. First operand 17781 states and 69348 transitions. Second operand has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:58,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:47:58,452 INFO L93 Difference]: Finished difference Result 19405 states and 74898 transitions. [2021-06-01 14:47:58,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-01 14:47:58,453 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-01 14:47:58,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:47:58,493 INFO L225 Difference]: With dead ends: 19405 [2021-06-01 14:47:58,493 INFO L226 Difference]: Without dead ends: 17781 [2021-06-01 14:47:58,494 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 1014.1ms TimeCoverageRelationStatistics Valid=231, Invalid=1661, Unknown=0, NotChecked=0, Total=1892 [2021-06-01 14:47:58,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17781 states. [2021-06-01 14:47:58,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17781 to 17781. [2021-06-01 14:47:58,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17781 states, 17780 states have (on average 3.89673790776153) internal successors, (69284), 17780 states have internal predecessors, (69284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:58,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17781 states to 17781 states and 69284 transitions. [2021-06-01 14:47:58,811 INFO L78 Accepts]: Start accepts. Automaton has 17781 states and 69284 transitions. Word has length 80 [2021-06-01 14:47:58,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:47:58,811 INFO L482 AbstractCegarLoop]: Abstraction has 17781 states and 69284 transitions. [2021-06-01 14:47:58,811 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:47:58,811 INFO L276 IsEmpty]: Start isEmpty. Operand 17781 states and 69284 transitions. [2021-06-01 14:47:58,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-01 14:47:58,834 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:47:58,834 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:47:58,835 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-01 14:47:58,835 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:47:58,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:47:58,835 INFO L82 PathProgramCache]: Analyzing trace with hash 402464423, now seen corresponding path program 8 times [2021-06-01 14:47:58,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:47:58,835 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080061643] [2021-06-01 14:47:58,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:47:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:47:59,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:47:59,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:47:59,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080061643] [2021-06-01 14:47:59,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080061643] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:47:59,400 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:47:59,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-06-01 14:47:59,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997111411] [2021-06-01 14:47:59,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-01 14:47:59,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:47:59,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-01 14:47:59,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-06-01 14:47:59,400 INFO L87 Difference]: Start difference. First operand 17781 states and 69284 transitions. Second operand has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:01,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:48:01,113 INFO L93 Difference]: Finished difference Result 19341 states and 74562 transitions. [2021-06-01 14:48:01,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 14:48:01,114 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-01 14:48:01,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:48:01,141 INFO L225 Difference]: With dead ends: 19341 [2021-06-01 14:48:01,141 INFO L226 Difference]: Without dead ends: 12909 [2021-06-01 14:48:01,142 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 1194.6ms TimeCoverageRelationStatistics Valid=240, Invalid=1922, Unknown=0, NotChecked=0, Total=2162 [2021-06-01 14:48:01,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12909 states. [2021-06-01 14:48:01,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12909 to 12909. [2021-06-01 14:48:01,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12909 states, 12908 states have (on average 3.6977068484660673) internal successors, (47730), 12908 states have internal predecessors, (47730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:01,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12909 states to 12909 states and 47730 transitions. [2021-06-01 14:48:01,357 INFO L78 Accepts]: Start accepts. Automaton has 12909 states and 47730 transitions. Word has length 80 [2021-06-01 14:48:01,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:48:01,358 INFO L482 AbstractCegarLoop]: Abstraction has 12909 states and 47730 transitions. [2021-06-01 14:48:01,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.076923076923077) internal successors, (80), 26 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:01,358 INFO L276 IsEmpty]: Start isEmpty. Operand 12909 states and 47730 transitions. [2021-06-01 14:48:01,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-01 14:48:01,370 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:48:01,371 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:48:01,371 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-01 14:48:01,371 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:48:01,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:48:01,371 INFO L82 PathProgramCache]: Analyzing trace with hash 235826553, now seen corresponding path program 9 times [2021-06-01 14:48:01,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:48:01,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272262292] [2021-06-01 14:48:01,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:48:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:48:01,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:48:01,921 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:48:01,921 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272262292] [2021-06-01 14:48:01,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272262292] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:48:01,921 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:48:01,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-01 14:48:01,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564687306] [2021-06-01 14:48:01,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-01 14:48:01,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:48:01,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-01 14:48:01,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-06-01 14:48:01,922 INFO L87 Difference]: Start difference. First operand 12909 states and 47730 transitions. Second operand has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:02,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:48:02,957 INFO L93 Difference]: Finished difference Result 14629 states and 53556 transitions. [2021-06-01 14:48:02,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 14:48:02,957 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-01 14:48:02,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:48:02,985 INFO L225 Difference]: With dead ends: 14629 [2021-06-01 14:48:02,985 INFO L226 Difference]: Without dead ends: 12909 [2021-06-01 14:48:02,985 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 1023.2ms TimeCoverageRelationStatistics Valid=244, Invalid=1736, Unknown=0, NotChecked=0, Total=1980 [2021-06-01 14:48:03,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12909 states. [2021-06-01 14:48:03,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12909 to 12909. [2021-06-01 14:48:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12909 states, 12908 states have (on average 3.6958475364115277) internal successors, (47706), 12908 states have internal predecessors, (47706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:03,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12909 states to 12909 states and 47706 transitions. [2021-06-01 14:48:03,200 INFO L78 Accepts]: Start accepts. Automaton has 12909 states and 47706 transitions. Word has length 80 [2021-06-01 14:48:03,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:48:03,200 INFO L482 AbstractCegarLoop]: Abstraction has 12909 states and 47706 transitions. [2021-06-01 14:48:03,200 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:03,200 INFO L276 IsEmpty]: Start isEmpty. Operand 12909 states and 47706 transitions. [2021-06-01 14:48:03,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-01 14:48:03,213 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:48:03,213 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:48:03,213 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-01 14:48:03,213 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:48:03,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:48:03,214 INFO L82 PathProgramCache]: Analyzing trace with hash 225964533, now seen corresponding path program 10 times [2021-06-01 14:48:03,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:48:03,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571111937] [2021-06-01 14:48:03,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:48:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:48:03,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:48:03,470 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:48:03,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571111937] [2021-06-01 14:48:03,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571111937] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:48:03,470 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:48:03,470 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 14:48:03,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320496642] [2021-06-01 14:48:03,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 14:48:03,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:48:03,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 14:48:03,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-06-01 14:48:03,471 INFO L87 Difference]: Start difference. First operand 12909 states and 47706 transitions. Second operand has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:04,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:48:04,052 INFO L93 Difference]: Finished difference Result 14817 states and 54002 transitions. [2021-06-01 14:48:04,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-01 14:48:04,053 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-01 14:48:04,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:48:04,081 INFO L225 Difference]: With dead ends: 14817 [2021-06-01 14:48:04,081 INFO L226 Difference]: Without dead ends: 12909 [2021-06-01 14:48:04,081 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 426.2ms TimeCoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2021-06-01 14:48:04,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12909 states. [2021-06-01 14:48:04,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12909 to 12909. [2021-06-01 14:48:04,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12909 states, 12908 states have (on average 3.695770065075922) internal successors, (47705), 12908 states have internal predecessors, (47705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:04,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12909 states to 12909 states and 47705 transitions. [2021-06-01 14:48:04,296 INFO L78 Accepts]: Start accepts. Automaton has 12909 states and 47705 transitions. Word has length 80 [2021-06-01 14:48:04,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:48:04,296 INFO L482 AbstractCegarLoop]: Abstraction has 12909 states and 47705 transitions. [2021-06-01 14:48:04,296 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:04,296 INFO L276 IsEmpty]: Start isEmpty. Operand 12909 states and 47705 transitions. [2021-06-01 14:48:04,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-06-01 14:48:04,309 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:48:04,309 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:48:04,309 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-01 14:48:04,309 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:48:04,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:48:04,310 INFO L82 PathProgramCache]: Analyzing trace with hash 457310543, now seen corresponding path program 11 times [2021-06-01 14:48:04,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:48:04,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139668649] [2021-06-01 14:48:04,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:48:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:48:04,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:48:04,572 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:48:04,572 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139668649] [2021-06-01 14:48:04,572 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139668649] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:48:04,572 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:48:04,572 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-01 14:48:04,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870038580] [2021-06-01 14:48:04,572 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-01 14:48:04,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:48:04,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-01 14:48:04,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-06-01 14:48:04,573 INFO L87 Difference]: Start difference. First operand 12909 states and 47705 transitions. Second operand has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:05,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:48:05,133 INFO L93 Difference]: Finished difference Result 11693 states and 41783 transitions. [2021-06-01 14:48:05,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-01 14:48:05,134 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-06-01 14:48:05,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:48:05,152 INFO L225 Difference]: With dead ends: 11693 [2021-06-01 14:48:05,152 INFO L226 Difference]: Without dead ends: 9756 [2021-06-01 14:48:05,153 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 418.6ms TimeCoverageRelationStatistics Valid=95, Invalid=607, Unknown=0, NotChecked=0, Total=702 [2021-06-01 14:48:05,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9756 states. [2021-06-01 14:48:05,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9756 to 9756. [2021-06-01 14:48:05,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9756 states, 9755 states have (on average 3.6302409021014865) internal successors, (35413), 9755 states have internal predecessors, (35413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:05,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9756 states to 9756 states and 35413 transitions. [2021-06-01 14:48:05,303 INFO L78 Accepts]: Start accepts. Automaton has 9756 states and 35413 transitions. Word has length 80 [2021-06-01 14:48:05,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:48:05,303 INFO L482 AbstractCegarLoop]: Abstraction has 9756 states and 35413 transitions. [2021-06-01 14:48:05,303 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 15 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:05,303 INFO L276 IsEmpty]: Start isEmpty. Operand 9756 states and 35413 transitions. [2021-06-01 14:48:05,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-01 14:48:05,314 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:48:05,314 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:48:05,314 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-01 14:48:05,314 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:48:05,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:48:05,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1119194606, now seen corresponding path program 1 times [2021-06-01 14:48:05,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:48:05,315 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433349725] [2021-06-01 14:48:05,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:48:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:48:05,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:48:05,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:48:05,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433349725] [2021-06-01 14:48:05,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433349725] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:48:05,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:48:05,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-01 14:48:05,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216537782] [2021-06-01 14:48:05,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-01 14:48:05,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:48:05,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-01 14:48:05,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-06-01 14:48:05,657 INFO L87 Difference]: Start difference. First operand 9756 states and 35413 transitions. Second operand has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:06,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:48:06,396 INFO L93 Difference]: Finished difference Result 11478 states and 41516 transitions. [2021-06-01 14:48:06,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-01 14:48:06,396 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-01 14:48:06,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:48:06,417 INFO L225 Difference]: With dead ends: 11478 [2021-06-01 14:48:06,417 INFO L226 Difference]: Without dead ends: 10686 [2021-06-01 14:48:06,417 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 606.5ms TimeCoverageRelationStatistics Valid=133, Invalid=923, Unknown=0, NotChecked=0, Total=1056 [2021-06-01 14:48:06,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10686 states. [2021-06-01 14:48:06,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10686 to 9798. [2021-06-01 14:48:06,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9798 states, 9797 states have (on average 3.6236603041747473) internal successors, (35501), 9797 states have internal predecessors, (35501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:06,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9798 states to 9798 states and 35501 transitions. [2021-06-01 14:48:06,576 INFO L78 Accepts]: Start accepts. Automaton has 9798 states and 35501 transitions. Word has length 82 [2021-06-01 14:48:06,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:48:06,576 INFO L482 AbstractCegarLoop]: Abstraction has 9798 states and 35501 transitions. [2021-06-01 14:48:06,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:06,576 INFO L276 IsEmpty]: Start isEmpty. Operand 9798 states and 35501 transitions. [2021-06-01 14:48:06,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-01 14:48:06,587 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:48:06,588 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:48:06,588 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-01 14:48:06,588 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:48:06,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:48:06,588 INFO L82 PathProgramCache]: Analyzing trace with hash -2146104382, now seen corresponding path program 1 times [2021-06-01 14:48:06,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:48:06,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571632058] [2021-06-01 14:48:06,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:48:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:48:06,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:48:06,972 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:48:06,972 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571632058] [2021-06-01 14:48:06,972 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571632058] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:48:06,972 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:48:06,972 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-01 14:48:06,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412391869] [2021-06-01 14:48:06,972 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-01 14:48:06,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:48:06,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-01 14:48:06,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-06-01 14:48:06,973 INFO L87 Difference]: Start difference. First operand 9798 states and 35501 transitions. Second operand has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:07,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:48:07,772 INFO L93 Difference]: Finished difference Result 10512 states and 37844 transitions. [2021-06-01 14:48:07,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 14:48:07,772 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-01 14:48:07,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:48:07,792 INFO L225 Difference]: With dead ends: 10512 [2021-06-01 14:48:07,792 INFO L226 Difference]: Without dead ends: 9744 [2021-06-01 14:48:07,792 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 676.0ms TimeCoverageRelationStatistics Valid=139, Invalid=1051, Unknown=0, NotChecked=0, Total=1190 [2021-06-01 14:48:07,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9744 states. [2021-06-01 14:48:07,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9744 to 9744. [2021-06-01 14:48:07,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9744 states, 9743 states have (on average 3.631427691676075) internal successors, (35381), 9743 states have internal predecessors, (35381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:07,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9744 states to 9744 states and 35381 transitions. [2021-06-01 14:48:07,945 INFO L78 Accepts]: Start accepts. Automaton has 9744 states and 35381 transitions. Word has length 82 [2021-06-01 14:48:07,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:48:07,945 INFO L482 AbstractCegarLoop]: Abstraction has 9744 states and 35381 transitions. [2021-06-01 14:48:07,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:07,945 INFO L276 IsEmpty]: Start isEmpty. Operand 9744 states and 35381 transitions. [2021-06-01 14:48:07,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-01 14:48:07,956 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:48:07,957 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:48:07,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-01 14:48:07,957 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:48:07,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:48:07,957 INFO L82 PathProgramCache]: Analyzing trace with hash 877880874, now seen corresponding path program 2 times [2021-06-01 14:48:07,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:48:07,957 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296404085] [2021-06-01 14:48:07,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:48:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:48:08,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:48:08,288 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:48:08,288 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296404085] [2021-06-01 14:48:08,288 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296404085] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:48:08,288 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:48:08,288 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-01 14:48:08,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167101582] [2021-06-01 14:48:08,288 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-01 14:48:08,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:48:08,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-01 14:48:08,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-06-01 14:48:08,289 INFO L87 Difference]: Start difference. First operand 9744 states and 35381 transitions. Second operand has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:09,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:48:09,030 INFO L93 Difference]: Finished difference Result 11475 states and 41508 transitions. [2021-06-01 14:48:09,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-01 14:48:09,031 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-01 14:48:09,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:48:09,051 INFO L225 Difference]: With dead ends: 11475 [2021-06-01 14:48:09,051 INFO L226 Difference]: Without dead ends: 10683 [2021-06-01 14:48:09,051 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 615.8ms TimeCoverageRelationStatistics Valid=136, Invalid=986, Unknown=0, NotChecked=0, Total=1122 [2021-06-01 14:48:09,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2021-06-01 14:48:09,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 9795. [2021-06-01 14:48:09,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9795 states, 9794 states have (on average 3.6239534408821727) internal successors, (35493), 9794 states have internal predecessors, (35493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:09,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9795 states to 9795 states and 35493 transitions. [2021-06-01 14:48:09,212 INFO L78 Accepts]: Start accepts. Automaton has 9795 states and 35493 transitions. Word has length 82 [2021-06-01 14:48:09,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:48:09,212 INFO L482 AbstractCegarLoop]: Abstraction has 9795 states and 35493 transitions. [2021-06-01 14:48:09,212 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:09,212 INFO L276 IsEmpty]: Start isEmpty. Operand 9795 states and 35493 transitions. [2021-06-01 14:48:09,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-01 14:48:09,224 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:48:09,224 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:48:09,224 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-01 14:48:09,224 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:48:09,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:48:09,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1907549182, now seen corresponding path program 2 times [2021-06-01 14:48:09,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:48:09,224 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348857365] [2021-06-01 14:48:09,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:48:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:48:09,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:48:09,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:48:09,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348857365] [2021-06-01 14:48:09,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348857365] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:48:09,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:48:09,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-06-01 14:48:09,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980906496] [2021-06-01 14:48:09,590 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-01 14:48:09,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:48:09,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-01 14:48:09,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-06-01 14:48:09,591 INFO L87 Difference]: Start difference. First operand 9795 states and 35493 transitions. Second operand has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:10,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:48:10,444 INFO L93 Difference]: Finished difference Result 10509 states and 37836 transitions. [2021-06-01 14:48:10,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-01 14:48:10,444 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-01 14:48:10,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:48:10,464 INFO L225 Difference]: With dead ends: 10509 [2021-06-01 14:48:10,464 INFO L226 Difference]: Without dead ends: 9753 [2021-06-01 14:48:10,465 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 695.8ms TimeCoverageRelationStatistics Valid=142, Invalid=1118, Unknown=0, NotChecked=0, Total=1260 [2021-06-01 14:48:10,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9753 states. [2021-06-01 14:48:10,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9753 to 9753. [2021-06-01 14:48:10,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9753 states, 9752 states have (on average 3.6302296964725183) internal successors, (35402), 9752 states have internal predecessors, (35402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:10,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9753 states to 9753 states and 35402 transitions. [2021-06-01 14:48:10,633 INFO L78 Accepts]: Start accepts. Automaton has 9753 states and 35402 transitions. Word has length 82 [2021-06-01 14:48:10,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:48:10,633 INFO L482 AbstractCegarLoop]: Abstraction has 9753 states and 35402 transitions. [2021-06-01 14:48:10,634 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:10,634 INFO L276 IsEmpty]: Start isEmpty. Operand 9753 states and 35402 transitions. [2021-06-01 14:48:10,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-01 14:48:10,644 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:48:10,645 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:48:10,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-01 14:48:10,645 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:48:10,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:48:10,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1212865102, now seen corresponding path program 3 times [2021-06-01 14:48:10,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:48:10,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730163764] [2021-06-01 14:48:10,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:48:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:48:11,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:48:11,289 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:48:11,289 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730163764] [2021-06-01 14:48:11,289 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730163764] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:48:11,289 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:48:11,289 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-01 14:48:11,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717998819] [2021-06-01 14:48:11,290 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-01 14:48:11,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:48:11,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-01 14:48:11,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2021-06-01 14:48:11,290 INFO L87 Difference]: Start difference. First operand 9753 states and 35402 transitions. Second operand has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 22 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:12,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:48:12,661 INFO L93 Difference]: Finished difference Result 11532 states and 41669 transitions. [2021-06-01 14:48:12,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-01 14:48:12,661 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 22 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-01 14:48:12,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:48:12,682 INFO L225 Difference]: With dead ends: 11532 [2021-06-01 14:48:12,682 INFO L226 Difference]: Without dead ends: 10740 [2021-06-01 14:48:12,682 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 1327.1ms TimeCoverageRelationStatistics Valid=178, Invalid=1462, Unknown=0, NotChecked=0, Total=1640 [2021-06-01 14:48:12,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10740 states. [2021-06-01 14:48:12,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10740 to 9837. [2021-06-01 14:48:12,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9837 states, 9836 states have (on average 3.6216958113054085) internal successors, (35623), 9836 states have internal predecessors, (35623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:12,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9837 states to 9837 states and 35623 transitions. [2021-06-01 14:48:12,842 INFO L78 Accepts]: Start accepts. Automaton has 9837 states and 35623 transitions. Word has length 82 [2021-06-01 14:48:12,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:48:12,842 INFO L482 AbstractCegarLoop]: Abstraction has 9837 states and 35623 transitions. [2021-06-01 14:48:12,842 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 22 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:12,843 INFO L276 IsEmpty]: Start isEmpty. Operand 9837 states and 35623 transitions. [2021-06-01 14:48:12,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-01 14:48:12,854 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:48:12,854 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:48:12,854 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-06-01 14:48:12,854 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:48:12,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:48:12,854 INFO L82 PathProgramCache]: Analyzing trace with hash -183196794, now seen corresponding path program 3 times [2021-06-01 14:48:12,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:48:12,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289054892] [2021-06-01 14:48:12,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:48:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:48:13,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:48:13,639 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:48:13,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289054892] [2021-06-01 14:48:13,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289054892] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:48:13,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:48:13,639 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-01 14:48:13,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296832604] [2021-06-01 14:48:13,639 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-01 14:48:13,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:48:13,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-01 14:48:13,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2021-06-01 14:48:13,640 INFO L87 Difference]: Start difference. First operand 9837 states and 35623 transitions. Second operand has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:15,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:48:15,124 INFO L93 Difference]: Finished difference Result 10566 states and 37997 transitions. [2021-06-01 14:48:15,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-01 14:48:15,124 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-01 14:48:15,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:48:15,144 INFO L225 Difference]: With dead ends: 10566 [2021-06-01 14:48:15,144 INFO L226 Difference]: Without dead ends: 9813 [2021-06-01 14:48:15,144 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 1552.5ms TimeCoverageRelationStatistics Valid=184, Invalid=1622, Unknown=0, NotChecked=0, Total=1806 [2021-06-01 14:48:15,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9813 states. [2021-06-01 14:48:15,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9813 to 9798. [2021-06-01 14:48:15,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9798 states, 9797 states have (on average 3.626110033683781) internal successors, (35525), 9797 states have internal predecessors, (35525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:15,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9798 states to 9798 states and 35525 transitions. [2021-06-01 14:48:15,311 INFO L78 Accepts]: Start accepts. Automaton has 9798 states and 35525 transitions. Word has length 82 [2021-06-01 14:48:15,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:48:15,311 INFO L482 AbstractCegarLoop]: Abstraction has 9798 states and 35525 transitions. [2021-06-01 14:48:15,311 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:15,311 INFO L276 IsEmpty]: Start isEmpty. Operand 9798 states and 35525 transitions. [2021-06-01 14:48:15,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-01 14:48:15,322 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:48:15,322 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:48:15,322 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-06-01 14:48:15,322 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:48:15,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:48:15,323 INFO L82 PathProgramCache]: Analyzing trace with hash -275191676, now seen corresponding path program 4 times [2021-06-01 14:48:15,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:48:15,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778092095] [2021-06-01 14:48:15,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:48:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:48:15,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:48:15,768 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:48:15,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778092095] [2021-06-01 14:48:15,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778092095] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:48:15,768 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:48:15,768 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-06-01 14:48:15,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118716253] [2021-06-01 14:48:15,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-01 14:48:15,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:48:15,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-01 14:48:15,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-06-01 14:48:15,769 INFO L87 Difference]: Start difference. First operand 9798 states and 35525 transitions. Second operand has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 22 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:16,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:48:16,878 INFO L93 Difference]: Finished difference Result 11496 states and 41579 transitions. [2021-06-01 14:48:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-01 14:48:16,878 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 22 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-01 14:48:16,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:48:16,898 INFO L225 Difference]: With dead ends: 11496 [2021-06-01 14:48:16,899 INFO L226 Difference]: Without dead ends: 10704 [2021-06-01 14:48:16,899 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 951.4ms TimeCoverageRelationStatistics Valid=204, Invalid=1436, Unknown=0, NotChecked=0, Total=1640 [2021-06-01 14:48:16,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10704 states. [2021-06-01 14:48:17,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10704 to 9816. [2021-06-01 14:48:17,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9816 states, 9815 states have (on average 3.623433520122262) internal successors, (35564), 9815 states have internal predecessors, (35564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:17,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9816 states to 9816 states and 35564 transitions. [2021-06-01 14:48:17,064 INFO L78 Accepts]: Start accepts. Automaton has 9816 states and 35564 transitions. Word has length 82 [2021-06-01 14:48:17,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:48:17,064 INFO L482 AbstractCegarLoop]: Abstraction has 9816 states and 35564 transitions. [2021-06-01 14:48:17,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.727272727272727) internal successors, (82), 22 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:17,064 INFO L276 IsEmpty]: Start isEmpty. Operand 9816 states and 35564 transitions. [2021-06-01 14:48:17,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-01 14:48:17,076 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:48:17,076 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:48:17,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-01 14:48:17,076 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:48:17,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:48:17,076 INFO L82 PathProgramCache]: Analyzing trace with hash 754476632, now seen corresponding path program 4 times [2021-06-01 14:48:17,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:48:17,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230215813] [2021-06-01 14:48:17,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:48:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:48:17,308 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 27 [2021-06-01 14:48:17,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:48:17,857 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:48:17,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230215813] [2021-06-01 14:48:17,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230215813] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:48:17,857 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:48:17,857 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-01 14:48:17,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986888145] [2021-06-01 14:48:17,857 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-01 14:48:17,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:48:17,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-01 14:48:17,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2021-06-01 14:48:17,858 INFO L87 Difference]: Start difference. First operand 9816 states and 35564 transitions. Second operand has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:18,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:48:18,997 INFO L93 Difference]: Finished difference Result 11232 states and 40212 transitions. [2021-06-01 14:48:18,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-01 14:48:18,997 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-01 14:48:18,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:48:19,019 INFO L225 Difference]: With dead ends: 11232 [2021-06-01 14:48:19,019 INFO L226 Difference]: Without dead ends: 9792 [2021-06-01 14:48:19,019 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 1298.8ms TimeCoverageRelationStatistics Valid=196, Invalid=1526, Unknown=0, NotChecked=0, Total=1722 [2021-06-01 14:48:19,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9792 states. [2021-06-01 14:48:19,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9792 to 9780. [2021-06-01 14:48:19,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9780 states, 9779 states have (on average 3.6183658860824215) internal successors, (35384), 9779 states have internal predecessors, (35384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:19,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9780 states to 9780 states and 35384 transitions. [2021-06-01 14:48:19,198 INFO L78 Accepts]: Start accepts. Automaton has 9780 states and 35384 transitions. Word has length 82 [2021-06-01 14:48:19,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:48:19,198 INFO L482 AbstractCegarLoop]: Abstraction has 9780 states and 35384 transitions. [2021-06-01 14:48:19,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:19,198 INFO L276 IsEmpty]: Start isEmpty. Operand 9780 states and 35384 transitions. [2021-06-01 14:48:19,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-01 14:48:19,209 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:48:19,209 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:48:19,209 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-06-01 14:48:19,210 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:48:19,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:48:19,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1007010934, now seen corresponding path program 5 times [2021-06-01 14:48:19,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:48:19,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314646747] [2021-06-01 14:48:19,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:48:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:48:19,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:48:19,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:48:19,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314646747] [2021-06-01 14:48:19,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314646747] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:48:19,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:48:19,812 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-06-01 14:48:19,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201451798] [2021-06-01 14:48:19,812 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-01 14:48:19,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:48:19,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-01 14:48:19,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-06-01 14:48:19,813 INFO L87 Difference]: Start difference. First operand 9780 states and 35384 transitions. Second operand has 25 states, 25 states have (on average 3.28) internal successors, (82), 25 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:21,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-01 14:48:21,216 INFO L93 Difference]: Finished difference Result 9768 states and 34793 transitions. [2021-06-01 14:48:21,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-01 14:48:21,217 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.28) internal successors, (82), 25 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-06-01 14:48:21,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-01 14:48:21,232 INFO L225 Difference]: With dead ends: 9768 [2021-06-01 14:48:21,232 INFO L226 Difference]: Without dead ends: 7776 [2021-06-01 14:48:21,233 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 1253.0ms TimeCoverageRelationStatistics Valid=249, Invalid=1913, Unknown=0, NotChecked=0, Total=2162 [2021-06-01 14:48:21,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7776 states. [2021-06-01 14:48:21,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7776 to 7776. [2021-06-01 14:48:21,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7776 states, 7775 states have (on average 3.6109324758842445) internal successors, (28075), 7775 states have internal predecessors, (28075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:21,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7776 states to 7776 states and 28075 transitions. [2021-06-01 14:48:21,354 INFO L78 Accepts]: Start accepts. Automaton has 7776 states and 28075 transitions. Word has length 82 [2021-06-01 14:48:21,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-01 14:48:21,355 INFO L482 AbstractCegarLoop]: Abstraction has 7776 states and 28075 transitions. [2021-06-01 14:48:21,355 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.28) internal successors, (82), 25 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-01 14:48:21,355 INFO L276 IsEmpty]: Start isEmpty. Operand 7776 states and 28075 transitions. [2021-06-01 14:48:21,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-06-01 14:48:21,362 INFO L546 BasicCegarLoop]: Found error trace [2021-06-01 14:48:21,363 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-01 14:48:21,363 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-06-01 14:48:21,363 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-01 14:48:21,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-01 14:48:21,363 INFO L82 PathProgramCache]: Analyzing trace with hash 104308184, now seen corresponding path program 6 times [2021-06-01 14:48:21,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-01 14:48:21,363 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124363485] [2021-06-01 14:48:21,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-01 14:48:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-01 14:48:22,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-01 14:48:22,254 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-01 14:48:22,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124363485] [2021-06-01 14:48:22,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124363485] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-01 14:48:22,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-01 14:48:22,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-06-01 14:48:22,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982686184] [2021-06-01 14:48:22,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-01 14:48:22,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-01 14:48:22,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-01 14:48:22,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-06-01 14:48:22,255 INFO L87 Difference]: Start difference. First operand 7776 states and 28075 transitions. Second operand has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 23 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)